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All Seasons

Season 2013

  • S2013E01 Ten Illegal Things To Do In London

    • February 19, 2013
    • YouTube

    A quick and dirty video from Tom (http://tomscott.com - @tomscott) and Matt (http://mattg.co.uk - @unnamedculprit) - ten illegal things to do in London. Yes, these are all properly illegal: you can see our references at http://tomscott.com/law/

  • S2013E02 A Brief History of Lyric Videos

    • March 6, 2013
    • YouTube

    There's a good argument that lyric videos count as a whole new genre. Here's that genre's history, presented in its own style.

  • S2013E03 Lies on the London Underground

    • May 15, 2013
    • YouTube

    Tom Scott (http://tomscott.com @tomscott) and Matt Parker (http://standupmaths.com @standupmaths) investigate some of the London Underground's greatest lies.

  • S2013E04 Why Jonathan Ross Can't Pronounce His Rs

    • May 24, 2013
    • YouTube

    Jonathan Ross is known as "Wossy". He can't say his Rs. But there's a good chance that you've got the same speech defect he does, and you don't even know it.

  • S2013E05 Fantastic Features We Don't Have In The English Language

    • May 31, 2013
    • YouTube

    There are lots of interesting features in other languages, some of which English would really benefit from having. I'm going to talk about four of them: time-independence, clusivity, absolute direction, and evidentiality. Also, I've learned from last week: no irritating piano music this time!

  • S2013E06 All The Colours, Including Grue: How Languages See Colours Differently

    • June 7, 2013
    • YouTube

    Colours are easy, right? They're one of the first things you learn as a kid. But what if "blue" and "green" were the same colour? Or "light blue" and "dark blue" weren't? Well, guess what: there are languages out there that do exactly that.

  • S2013E07 Whatever Happened to Tom's Hoodie?: Tom Scott at Thinking Digital 2013

    • June 12, 2013
    • YouTube

    I give Thinking Digital 2013's health and safety crew a massive headache, while talking about sentimental value, physical objects and digital data.

  • S2013E08 Why You Swear in Anglo-Saxon and Order Fancy Food in French: Registers

    • June 14, 2013
    • YouTube

    Why is an "odour" classier than a "smell"? Why is a "beverage" fancier than a "drink"? The answer lies in English history - and in the way we automatically know which 'register' of language to use. (Includes bonus medieval advice for constipation!)

  • S2013E09 There's Nothing Wrong With Saying "10 Items or Less": Descriptivism vs Prescriptivism

    • June 21, 2013
    • YouTube

    If you see the phrase "10 items or less" in a supermarket and immediately cringe and complain that it should be "10 items or fewer"... well, you are not going to like this week's video.

  • S2013E10 Ghoti and the Ministry of Helth: Spelling Reform

    • June 28, 2013
    • YouTube

    Every so often, someone has a brilliant idea to reform English spelling. And you're probably thinking that I'm about to go off on a rant about how spelling reform never works. The trouble is... sometimes, just sometimes, it does work.

  • S2013E11 Gender Neutral Pronouns: They're Here, Get Used To Them

    • July 5, 2013
    • YouTube

    CORRECTIONS March 9th, 2019 Back in 2013, I made a video about ‘singular they’ and gender-neutral pronouns. Looking back on it with half a decade of hindsight, there are several things I want to correct. I also have a few thoughts on how the reactions to it have changed over time, and why the video’s comments will remain off. Firstly, while editing the video, I cut the first sentence of the script. That sentence didn’t seem to add anything, and I’m a believer in ‘don’t bore us, get to the chorus’. That would have been fine — if only the script didn’t refer back to that first sentence later on, noting that the viewer probably didn’t notice the singular they in it. There used to be an annotation explaining that mistake, but YouTube’s deleted all annotations now. I regret the error. Secondly, I mentioned that recently-coined gender-neutral prounouns (hir, xe, etc) haven’t caught on in regular usage, and that trying to deliberately add new words into a language is extremely difficult.

  • S2013E12 Mele Kalikimaka: Why You Can't Say "Christmas" in Hawaiian

    • July 12, 2013
    • YouTube

    It's not that Hawaiian has a completely different word for Christmas -- it's just that Kalikimaka is the closest that Hawaiian can possibly get to the word Christmas.

  • S2013E13 Oversight: Thank you for volunteering, citizen.

    • August 2, 2013
    • YouTube

    Or: what happens when you privatise Big Brother.

  • S2013E14 How Many Gs Do You Pull in an Elevator?

    • October 12, 2013
    • YouTube

    In one of the tallest buildings in London, Tom answers the question of how many Gs you pull in a lift, with the help of some sugar and a very dirty kitchen scale.

  • S2013E15 Why Do We Have "Ye Olde"? Obsolete Letters, and the Mysteries of Ye Olde Ming

    • December 4, 2013
    • YouTube

    Why do we say "Ye Olde"? Why is "Menzies" pronounced "Mingis"? To find out, we have to go back into history.

  • S2013E16 Adjectival Order: Why A "Big Red Balloon", not a "Red Big Balloon"?

    • December 11, 2013
    • YouTube

    The order of adjectives is one of those wonderful linguistic things that no-one really notices until it's pointed out to them.

  • S2013E17 Why You Can Tweet More In Japanese: What Counts As A Character?

    • December 17, 2013
    • YouTube

    Twitter was set up to support 140 characters. And in the English alphabet, that's easy to understand: a character is a letter, number, space or punctuation mark. People more or less agree with computers there. And if it was twenty years ago, that's exactly how the system would work. That far, no further.

  • S2013E18 Making Flaps Vibrate In Your Throat: Voicing

    • December 20, 2013
    • YouTube

    There's an interesting thing about English that hardly anyone thinks about. There are two "th" sounds. And if you want to know why it took me twenty-one takes to record this intro, you try switching them round.

Season 2014

  • S2014E01 There Are Special Crossings For Horses In Britain

    • January 1, 2014
    • YouTube

    If you wander the footpaths and bridleways of Britain, you might stumble across a special crossing for horses.

  • S2014E02 Why Aren't There More Helicopter Crashes In London?

    • January 2, 2014
    • YouTube

    Helicopters in London have a simple rule that means they're safer for everyone in the city. I stand on something a bit too high in order to explain it.

  • S2014E03 How To Make An Orange Peel Flamethrower

    • January 3, 2014
    • YouTube

    I'm joined by Felix Cohen from http://manhattansproject.com to learn how to make orange oil go up in flames. Add flavour, aroma, and a touch of danger to your cocktails. Personally, I don't drink, but that doesn't mean I can't learn to mix 'em. Please drink responsibly.

  • S2014E04 The Secret Pattern That Stops You Copying Bank Notes

    • January 4, 2014
    • YouTube

    There's a hidden pattern on banknotes, all around the world, that means photocopiers refuse to copy them.

  • S2014E05 The 134-Hour Television Show from the Arctic Circle

    • January 5, 2014
    • YouTube

    I'm up in the Arctic Circle, by a large ship on the Hurtigruten line, to talk about the longest TV program in the world, and why Norway excels at something called "slow television".

  • S2014E06 The Underground Roundabouts of Tromsø

    • January 6, 2014
    • YouTube

    In the Norwegian city of Tromsø, there's a bit of city planning straight out of science fiction: an underground road network, complete with junctions and roundabouts, bored into the mountains around the city.

  • S2014E07 Why Does Nighttime Smartphone Footage Look All Flickery in Europe?

    • January 7, 2014
    • YouTube

    When you film with an iPhone or other smartphone in Europe at night, there's often a weird rolling banding effect over your footage. The reason has to do with power grids, frequencies, and some rather American-centric smartphone makers.

  • S2014E08 Danger: Humans

    • January 8, 2014
    • YouTube

    A message from the Interstellar Safety Council. What if the rest of the universe wasn't built on "survival of the fittest"?

  • S2014E09 Members of Parliament Aren't Allowed To Resign

    • January 9, 2014
    • YouTube

    Since 1624, Members of Parliament haven't been allowed to resign. And yet, they do: how do they manage it.

  • S2014E10 The Thames Still Has Some 19th Century Stink In It

    • January 11, 2014
    • YouTube

    Joseph Bazalgette moved most of the Thames stink away, but there's still some 19th-century dodginess in the river now and again.

  • S2014E11 The Secret Button on Pedestrian Crossings

    • January 12, 2014
    • YouTube

    There's a hidden nodule on some British pedestrian crossings that provides a vital clue for folks who might otherwise not be able to cross the road safely.

  • S2014E12 You Can Gold Plate Your Tongue For About $2

    • January 13, 2014
    • YouTube

    Using edible gold leaf, gold that's been rolled out to a fraction of a micron in thickness, you can have a gold plated tongue, at least for a few seconds. File this one under 'stupid human tricks'.

  • S2014E13 A Zeppelin, A Cat, and The World's First In-Flight Radio Message

    • January 14, 2014
    • YouTube

    Zeppelin trivia expert Simon Willison (@simonw) explains why the world's first in-flight radio message was "Roy, come and get this goddamn cat".

  • S2014E14 Platform 9¾ Is In The Wrong Place

    • January 15, 2014
    • YouTube

    I was walking through Kings Cross, spotted Platform 9¾, and thought I'd share something you might not know: thanks to redevelopment of the station, right now it's in the wrong place. It won't be for long, though.

  • S2014E15 Single Point of Failure: The (Fictional) Day Google Forgot To Check Passwords

    • January 16, 2014
    • YouTube

    I spin a (fictional) tale of the day that Google accidentally opened everything. Performed at GeekyConf, with thanks to Betsy Weber and Natalie Downe on camera.

  • S2014E16 How To (Appear To) Strangle Someone (On Stage)

    • January 17, 2014
    • YouTube

    In the first of two videos filmed rough-and-ready in an alley behind a pub, all-round lovely person Norm (@cackhanded) teaches me how to safely strangle someone on stage.

  • S2014E17 How To (Appear To) Slap Someone Across The Face (On Stage)

    • January 18, 2014
    • YouTube

    In the second of two videos filmed rough-and-ready in an alley behind a pub, all-round lovely person Norm (@cackhanded) teaches me how to safely slap someone across the face on stage.

  • S2014E18 Can You Cook Bacon Using Hair Curlers?

    • January 19, 2014
    • YouTube

    We go back to our old-school YouTube days, and try to cook bacon with a thing that isn't designed to cook bacon. It doesn't go well.

  • S2014E19 Why Wind Farms Don't Always Turn When It's Windy

    • January 20, 2014
    • YouTube

    Why don't wind farms always turn, even if there's a lot of wind?

  • S2014E20 British Nuclear War from Beyond the Grave: The Letter of Last Resort

    • January 21, 2014
    • YouTube

    We'll hopefully never know what's written in the letters of last resort: top secret, handwritten notes from the British Prime Minister to be opened by submarine captains in the event of nuclear war. This video contains an error: I say "Trident-class", but that's the name of the missiles. It should be Vanguard-class.

  • S2014E21 Why Is London's Cable Car So Damn High?

    • January 23, 2014
    • YouTube

    Ninety metres above the river is really tall for a cable car. Why build it so high, and spend so much? Well, other than the Mayor of London being a bumbling buffoon, there's a reason it's got to be that high.

  • S2014E22 Why Do Reversing Trucks Not Beep Any More?

    • January 24, 2014
    • YouTube

    Have you noticed? That reversing beeper you find on trucks has been replaced by a squelch of white noise. Today, standing on a lay-by next to a busy construction site, I explain why -- while trying not to get run over.

  • S2014E23 Einstein Wasn't The First Scientist To Talk About Relativity

    • January 25, 2014
    • YouTube

    I'm flying to the US. Ten hours on a plane is a long time, so I'm filming a video in an airplane bathroom, about something that makes sense in an airplane bathroom: relativity. "Galilean invariance" is the idea: centuries before Einstein, someone else had the idea that there's no privileged frame of reference.

  • S2014E24 British Ice Cream Doesn't Have To Contain Milk

    • January 26, 2014
    • YouTube

    I honestly thought this was an urban legend until I looked into it, but it's true. (The urban legend is that Margaret Thatcher invented it.)

  • S2014E25 The Image That Can Break Your Brain

    • January 27, 2014
    • YouTube

    Things that can hurt you just by looking at them are science fiction and fantasy, right? Well, not quite. Inside Walt Disney World, home of the most terrible earworm known to humanity, I talk about the McCollough Effect.

  • S2014E26 How To Throw A Bucket Of Water At Someone

    • January 28, 2014
    • YouTube

    Hitting someone in the chest with a bucket of water looks impressive at close range, sure. But on stage, there's a different technique you need to use to make sure the back row is just as impressed.

  • S2014E27 The Hard Part About Getting To Orbit Isn't The Height

    • January 29, 2014
    • YouTube

    (YouTube ate this first time around, so I've reuploaded it.) From the flame trench of Launch Complex 39 at the Kennedy Space Centre, under the pad from which the Apollo astronauts went to the moon, here's the reason that orbit is so damn hard to get to.

  • S2014E28 Your GPS Shuts Down If It Goes Too Fast

    • January 30, 2014
    • YouTube

    If a GPS goes over 1200mph or 60,000 feet, it'll shut down. And the reason why is linked to here, at the Kennedy Space Centre, and the Cold War.

  • S2014E29 How To Fall Into A Swimming Pool

    • January 31, 2014
    • YouTube

    A few days ago I was pushed into a pool. This is how to get pushed into a pool properly.

  • S2014E30 The Datablast: Experimental Interactive TV From The 1990s

    • February 1, 2014
    • YouTube

    There were a lot of embarrassing things on TV in the 1990s, and Andy Crane in a baseball cap was just one of them.

  • S2014E31 How To Tell If You're Dreaming

    • February 2, 2014
    • YouTube

    Oneironauts are "dream travellers": folks who say they can become aware of, and control, their dreams. But how do you tell if you're dreaming? Well, there's this one weird trick...

  • S2014E32 The SPF Rating On Sunscreen Is Questionable At Best

    • February 4, 2014
    • YouTube

    SPF is meant to be a multiplier, but it's much more complicated than that. And as a Brit in Florida, I have to take care about burning.

  • S2014E33 Disney Could Go Nuclear If They Wanted To

    • February 5, 2014
    • YouTube

    The corporate behind-the-scenes workings of Walt Disney World are interesting, to say the least. They've got their own private city.

  • S2014E34 Why Was AllAdvantage.com Popular In Beverly Hills?

    • February 13, 2014
    • YouTube

    Remember the "dumbest dot-com", AllAdvantage? They paid you to surf the web, at least for a while. And one day, they announced that they were incredibly popular in rich Beverly Hills, California. The reason connects them to the US Postal Service... and Jason Priestley.

  • S2014E35 The Mississippi River Wants To Move

    • February 14, 2014
    • YouTube

    Rivers change course. They leave behind old channels, oxbow lakes, and a dozen other things you learned about in geography class. The trouble is, some rivers can't be allowed to move any more.

  • S2014E36 Moss Is Terrible For Emergency Navigation

    • February 15, 2014
    • YouTube

    I'm not saying that you shouldn't trust moss if you have absolutely no other options. I am saying that you shouldn't get lost in the woods in the first place.

  • S2014E37 Let's Talk About Names. In Iceland.

    • February 17, 2014
    • YouTube

    If I were in Iceland, I'd have a different name: and not only that, but the Icelandic government would have made my parents pick a name from a list. But there are more lessons to learn about names, particularly for those of us from the English-speaking world...

  • S2014E38 Let's Play: Bar Billiards

    • February 18, 2014
    • YouTube

    Bar billiards is a little-known British pub game. And in the tradition of video game "let's plays" -- only in the real world -- I got some folks together for a match. THE RULES: Pot the balls in the holes. Each hole's worth some points. Red ball's worth double. Don't knock over the pegs. And you only score those points when you play a legal shot that doesn't pot anything. Don't worry, you'll work it out soon enough.

  • S2014E39 How Does A Geyser Work?

    • February 19, 2014
    • YouTube

    There aren't that many places in the world where you can find geysers: even fewer where they blow regularly. Here, amongst the volcanic landscape of Iceland, is one of them. Here you'll find the original Geysir, plus its more regular cousin Strokkur. And a lot of wind.

  • S2014E40 Why Do We Not Have A Cure For The Common Cold Yet?

    • February 20, 2014
    • YouTube

    It's a good question: with so many medical advances, how is "a cure for the common cold" still shorthand for "something that'll never exist"? Well, there's a good answer too -- and your body already knows it.

  • S2014E41 Origami In Space

    • February 21, 2014
    • YouTube

    I'm joined by tef (@tef - http://programmingisterrible.com) who explains the Miura fold, a fancy origami fold that has uses both up in space and down on the ground.

  • S2014E42 Never Call Someone "Tired and Emotional" In England

    • February 22, 2014
    • YouTube

    There's a famous British euphemism: "tired and emotional". Which means drunk. But if you're being recorded, or writing down your thoughts, you might want to stay away from it - because the British legal system is terrifying.

  • S2014E43 Britain Has 555 Phone Numbers Too

    • February 23, 2014
    • YouTube

    In every Hollywood movie where someone dials a phone number, it starts with 555. Turns out Britain's got a similar system, and it's one of the few good decisions Ofcom's ever made.

  • S2014E44 The London Railway of the Dead

    • February 24, 2014
    • YouTube

    When there's no room left to be buried, the dead will... take a train? It's hard to believe, but the London Necropolis Railway has a history.

  • S2014E45 British Tanks Are Better Than All Other Tanks, And Here's Why

    • February 25, 2014
    • YouTube

    And this particular tank, although it's a Soviet one, is accessible at the corner of Mandela Way and Pages Walk in Bermondsey. (And I know the term's "combat vehicle", I just prefer using "fighting machine".)

  • S2014E46 The 19th Century Channel Tunnel Wasn't Just A Dream

    • March 17, 2014
    • YouTube

    There were lots of Victorian engineering plans that never got off the drawing board - but one attempt at a Channel Tunnel remarkably did.

  • S2014E47 Point Zero: Where All Roads Start

    • March 21, 2014
    • YouTube

    At the front of Notre Dame cathedral in Paris sits a mostly-ignored marker. Mostly ignored, that is, until one person arrives and takes pictures, at which point everyone crowds round it and ruins the shot.

  • S2014E48 Privacy In France: A Lot Of French People Might Be About To Sue Me

    • March 24, 2014
    • YouTube

    As ever, I'm not a lawyer -- but even professional lawyers can't give consistent advice on this. I'm still a bit worried that I'm going to get sued in France.

  • S2014E49 Facebook for Oculus Rift: The Commercial

    • March 25, 2014
    • YouTube

    Facebook bought Oculus Rift for $2bn. Yep, two billion dollars. I made them a commercial. They probably won't like it.

  • S2014E50 Is "Paris Syndrome" A Real Thing?

    • March 31, 2014
    • YouTube

    A few years ago, there were a lot of news reports about Paris Syndrome, an affliction that hit people whose ideas of Parisian delight were a long way from reality. A correction to this video: tachycardia is accelerated heartbeat, not irregular. The video's also a very early one that, in hindsight, I'm not particularly proud of, but that's not technically a correction. All corrections can be found at https://www.tomscott.com/corrections/

  • S2014E51 The Level Crossing You Have To Power Yourself

    • April 7, 2014
    • YouTube

    Out in the countryside near Canterbury, on the London to Ramsgate line, there's a strange level crossing - one that requires human effort. It's strange what railway history leaves us with. (Thanks to @quixoticgeek on camera duty!)

  • S2014E52 From Missingno to Heartbleed: Buffer Exploits and Buffer Overflows

    • April 8, 2014
    • YouTube

    Buffer exploits are one of the basic bugs of computer science. They're responsible for glitches in games, for all sorts of viruses and exploits, and any number of technical disasters. Here's the basics of how they work, and a non-technical breakdown of Heartbleed, this week's rather startling attack.

  • S2014E53 The Rise and Fall of the Gasometer

    • April 14, 2014
    • YouTube

    In towns and cities across Britain, Europe, and occasionally the rest of the world, there are still some odd circular scaffolding structures. And younger viewers might not know what they are -- or why there aren't many left.

  • S2014E54 Chess Clock Jenga

    • April 18, 2014
    • YouTube

    We've invented a new game: Chess Clock Jenga. It's... well, it's Jenga with a chess clock, but you probably worked that out already.

  • S2014E55 The Three Types of Twilight, and The Days Without Night

    • April 21, 2014
    • YouTube

    Despite the rather mythical title to this video, it's actually mostly about technicalities. And not about the dodgy vampire books.

  • S2014E56 The Early Steam Train With No Brakes: Stephenson's Rocket

    • April 28, 2014
    • YouTube

    With thanks to all the team at the National Railway Museum, York! You can ride in the passenger section behind Rocket on certain days; get in touch with the Museum at nrm.org.uk for details.

  • S2014E57 How Does Eurovision Break Ties?

    • May 10, 2014
    • YouTube

    In ninety minutes, one of the most watched TV events of the year will happen. I'm there. It's going to be close. This is what happens if it's too close.

  • S2014E58 How YouTube Video Stabilization Works

    • May 12, 2014
    • YouTube

    From tracking a point, to analysing pixels, to plotting 3D camera moves: here's how you go from shaky handheld shots to that "gliding through the Matrix" effect. Thanks to Matt Gray for his excellent camera work - he's at http://mattg.co.uk - @unnamedculprit

  • S2014E59 Angels Are Actually Pretty Terrifying

    • May 22, 2014
    • YouTube

    Angels. Gentle people with wings, and puffy-faced children with serene faces. Right? Wrong. Thrones and cherubim? According to the great Biblical scholars, they're like terrifying aliens.

  • S2014E60 The Most Ridiculous Game Of Football In History

    • May 26, 2014
    • YouTube

    Originally, I was going to try and tell this story while inside the bubble. That plan lasted until the very first tackle.

  • S2014E61 The Nuclear Reactor In The Middle Of London

    • June 2, 2014
    • YouTube

    Who'd be stupid enough to put an actual nuclear reactor in the middle of London? Well, the Royal Navy, for more than thirty years, at the Old Royal Naval College in Greenwich -- that place that got blown up in Thor 2. It's not quite as bad as it seems, though. Thanks to David and Oli for sending this in, and to Rob Blake on camera! PS: here's my favourite Thor joke. A man in a Viking helmet with a giant hammer walks into a bar. The bartender says "hey, are you Thor?" And the man replies, "No, I alwayth walk like thith."

  • S2014E62 Fail-Safe vs. Fail-Deadly (with Colin Furze)

    • June 9, 2014
    • YouTube

    "Fail-safe" doesn't mean "we have a backup", it means "if this fails, nobody gets hurt". So I went to see the master of inventions that aren't failsafe, Colin Furze, for a more visual demonstration.

  • S2014E63 How The Self-Retweeting Tweet Worked: Cross-Site Scripting (XSS) and Twitter

    • June 11, 2014
    • YouTube

    It should never have happened. Defending against cross-site scripting (XSS) attacks is Web Security 101. And yet, today, there was a self-retweeting tweet that hit a heck of a lot of people - anyone using Tweetdeck, Twitter's "professional" client. How did it work? Time to break down the code. (Remember the old Myspace worms? They worked the same way.)

  • S2014E64 How Do You Make Something Last 1,000 Years?

    • June 16, 2014
    • YouTube

    In Trinity Buoy Wharf lighthouse in London -- and a few other science museums around the world -- sits Longplayer, a musical composition designed to last a millennium. How do you keep something running for that long? Thanks to Rob Blake for holding the camera through the many takes. This one took a while... And thanks to Martin Deutsch for reminding me about Longplayer!

  • S2014E65 The Equation of Time: Clocks Vs Sundials

    • June 20, 2014
    • YouTube

    A few centuries ago, the arbiter of "local noon" wasn't the mechanical clock, it was the sundial. The pseudoscientific-sounding "equation of time" is how you convert between the two -- and perhaps not the way you'd expect.

  • S2014E66 Why Do Flag Emoji Count As Two Characters?

    • June 23, 2014
    • YouTube

    If you've tried to tweet a national flag emoji lately -- I can't imagine why -- you'll have noticed that you can only fit 70 of them into a tweet. The reason why is buried in a bit of technical specification, and shows how your phone can lie to you...

  • S2014E67 Emojli: the emoji-only network.

    • June 30, 2014
    • YouTube

    Reserve your username now: http://emoj.li - your username, of course, has to be emoji. Matt Gray and Tom Scott present Emojli, the first emoji-only social network.

  • S2014E68 British Plugs Are Better Than All Other Plugs, And Here's Why

    • July 7, 2014
    • YouTube

    ALL THE ELECTRICS I USED WERE UNPLUGGED. DO NOT DO THIS. Yep, I'm going all patriotic again. And while I'm willing to bet that a good number of British folks know the first half of this video, there's one thing about slack in here that I only just learned myself.

  • S2014E69 Some Places Have Lower Gravity Than Others

    • July 14, 2014
    • YouTube

    I know, technically everywhere has the same "gravity", but there's less gravitational pull from the Earth in some places. You try fitting that into a YouTube title. (Filmed at Zip World Titan in Blaenau Ffestiniog. That's not product placement, I paid for my ride just like everyone else, it's just that I know loads of people will ask if I don't mention it.)

  • S2014E70 What's The Longest Word In The English Language?

    • July 16, 2014
    • YouTube

    I'm getting a bit linguistic in this week's video, from the Welsh village of Llanfair­pwllgwyn­gyllgo­gery­chwyrn­drobwll­llanty­silio­gogo­goch. And as often happens with linguistics, the answer depends on how you define things. What counts as a word, after all?

  • S2014E71 Giant Underground Trampolines!

    • July 21, 2014
    • YouTube

    I try not to do too many "look at this thing" videos, because it's better to have an interesting backdrop and an interesting fact. This time, though, I'll make an exception. Welcome to Bounce Below. No product placement here, by the way: I booked and paid like everyone else! Bounce Below is at the Llechwedd Slate Caverns in Blaenau Ffestiniog, and you can find out more here: http://www.bouncebelow.net/

  • S2014E72 Gravity Doesn't Always Point Straight To The Earth's Core

    • July 28, 2014
    • YouTube

    Another close call with gravity, this time with a little more coherence and on an alpine slide. Although I'll be honest: this is one of those times where "I told you that story so I could tell you this one".

  • S2014E73 YouTube Doesn't Know Your Password

    • August 4, 2014
    • YouTube

    A brief introduction to password hashing for the uninitiated -- and why you should never trust a site that emails your password back to you!

  • S2014E74 Third Person Driving with a Drone

    • August 11, 2014
    • YouTube

    A filming drone, video goggles, a Mazda MX-5 Miata and a disused airfield. Paul and Oli compete to answer the question: can you drive in a third person view? The stunts in this video were performed by trained drivers on a closed course. Do not try this at home. Paul is on Twitter at @cr3 and http://cr3ation.co.uk - Oli's at @coldclimate and http://www.theapproachablegeek.co.uk/ Thanks to our aerial filming crew, Neil and Rob from Skypower, http://skypower.co.uk - they stepped in at very short notice to make it happen!

  • S2014E75 How To Read Text In Binary

    • August 18, 2014
    • YouTube

    No, seriously. Here's how to read text when all you can see is a bunch of 0s and 1s. It's easier than it seems. I... I think I might have gone off the deep end a bit here.

  • S2014E76 The Ice Bucket Challenge Lowers Your Heart Rate

    • August 24, 2014
    • YouTube

    The mammalian diving reflex is a quirk of evolution that means a shock of ice water does the unexpected: it lowers your heart rate. I demonstrate using not a bucket, but a bathtub. This was probably a bad idea.

  • S2014E77 Ultrasonically Vaporized Vodka!

    • August 31, 2014
    • YouTube

    A £20 ultrasonic fogger, some rum and vodka, and a lot of style: put them together and you get Toby Jackson's (@matingslinkys) Marvellous Booze Fogger, part of Nottinghack's contribution to the Electromagnetic Field festival this weekend. Always drink responsibly!

  • S2014E78 2030: Privacy's Dead. What happens next?

    • September 6, 2014
    • YouTube

    At dConstruct 2014, I spin a tale of the future: not to make a prediction, but to put our current world in perspective. Thanks to all the dConstruct folks at the Brighton Dome: crew, volunteers, and audience!

  • S2014E79 Emojli: Behind the Scenes and Why You Should Never Build An App

    • August 30, 2014
    • YouTube

    Emojli, our emoji-only messenger, has launched! Today at Electromagnetic Field, the UK hacker camp, Matt Gray and I gave a talk about how it was made, why it was made, and why we never want to build anything like it again.

  • S2014E80 How to Land a Plane in an Emergency

    • September 7, 2014
    • YouTube

    All three of us got the plane down on a perfectly still day with no wind. But an autopilot could do that. That's not nearly as interesting.

  • S2014E81 Scotland is Rising and England is Sinking, Literally

    • July 15, 2014
    • YouTube

    I was passing by the Thames Barrier today, and figured it'd be a good time to talk about Scotland -- and how it's quite literally rising up. With "post-glacial rebound" and "glacial isostatic adjustment", though, not the referendum.

  • S2014E82 How To (Appear To) Snap Someone's Neck (On Stage)

    • July 22, 2014
    • YouTube

    Back at the same pub where he taught me to strangle someone, stage-fighting and lovely improv person Norm (@cackhanded) returns to show me how to break someone's neck in the movies. Listen to the warnings on this one, folks.

  • S2014E83 The Shellshock Bug In About Four Minutes

    • July 25, 2014
    • YouTube

    Remember Heartbleed? Well, this is probably worse. Here's a (somewhat simplified) explanation of what Shellshock actually is. Don't worry: I haven't included instructions on how to actually exploit it. The moral of the story is: keep your security patches up to date!

  • S2014E84 Why Britain Uses Separate Hot and Cold Taps

    • August 6, 2014
    • YouTube

    Why don't we use mixer taps? I've talked about the British plug before, and how it's a wonderful design: British plumbing, on the other hand, still leaves a lot to be desired.

  • S2014E85 The Man Who Set Up His Own Toll Road, Without Permission

    • August 13, 2014
    • YouTube

    Welcome to the Kelston Toll Road: Fed up with a 14-mile diversion caused by a landslip, businessman Mike Watts has taken a £300,000 risk and set up his own private toll road. It costs £2 for cars to travel the 400 metres -- which is slightly less than the cost of the petrol to take the detour. And the odd thing is this: despite the Kelston Toll Road not being approved by the local council, Mike is still on the right side of the law. Many thanks to Mike Watts and the team at the Kelston Toll Road: they can be found on Twitter at @KelstonTollRoad and, obviously, between Bath and Kelston on the A431!

  • S2014E86 What Did Witches Actually Use?

    • August 20, 2014
    • YouTube

    Those potions in Macbeth are a lot less mysterious than you might think. The Harry Potter ones don't really work, though. Thanks to the Warner Brothers Studio Tour for letting me film, and to Amy Louise Gwynne for spellcasting!

  • S2014E87 There's a Bit of England in New York, Literally

    • September 3, 2014
    • YouTube

    Some folks might leave their heart in San Francisco, but over at Waterside Plaza in New York, there's a much more real and physical souvenir: a part of Bristol, a port town in the south west of England, that literally makes up the foundation of a development near the East River.

  • S2014E88 The Diner Where You Microwaved Your Own Food

    • September 6, 2014
    • YouTube

    On a busy street in Manhattan, there was once a place called Tad's 30 Varieties of Meals -- or possibly Tad's 57 Varieties, or maybe just Tad's. It closed long ago, but the idea was this: diners would pick a frozen meal, take it to their own table, and put it in their new, shiny, space-age microwave oven. Needless to say, it didn't catch on: but there's more history there than you might think.

  • S2014E89 The Liquid Nitrogen Tanks of New York

    • September 10, 2014
    • YouTube

    I was walking through New York and found a couple of seemingly-abandoned liquid nitrogen tanks on the street. Except they weren't abandoned: they were full, making a very quiet hissing noise, and plumbed into... somewhere. I did a bit of research, and found out why they're really there. Thanks to David Bodycombe, who tipped me off to the tanks' existence: I was planning to go looking for them, but instead I just found them, casually sitting on the street corner, while I was headed to the Rockefeller Center...

  • S2014E90 The Floating Lighthouse in New York: The Lightship Ambrose

    • November 17, 2014
    • YouTube

    With many thanks to the South Street Seaport Museum! Visit them at http://southstreetseaportmuseum.org/ or at Pier 16 in New York. These days, if you have dangerous, underwater shoals and you need a lighthouse, you build a big tower and anchor it to the seabed. But a hundred years ago, that technology wasn't there: and so you'd build a lightvessel: a floating lighthouse with a crew of twelve, who's stay out in the dangerous channel in all weathers. At the South Street Seaport Museum, Mike Weiss, the waterfront foreman, gave me a tour around the Lightship Ambrose. (Apologies for the audio on this one: I was shooting quickly, and it turns out it's windy on the East River in New York!)

  • S2014E91 Why "Four Score and Seven Years Ago"?

    • November 24, 2014
    • YouTube

    Lincoln's Gettysburg Address is one of the great moments of American history. There's a myth that he wrote it on the train to Gettysburg -- which isn't true -- but I want to dive into something a bit more linguistic. Those opening words: "four score and seven years ago": why do they sound so resonant? And where might you have heard something similar?

  • S2014E92 The Concrete Pillars On Top Of British Hills: Trig Points

    • December 8, 2014
    • YouTube

    Around the United Kingdom there are odd concrete pillars on the top of hills, built to last for decades if not centuries. They've got a cryptic marking on them, and the words "Ordnance Survey Triangulation Station". What are they? (They're trig points.) Who put them there? (Brigadier Martin Hotine and thousands of people working with him.) And why? (To get an accurate map of the UK, with maths.)

  • S2014E93 Do The Numbers On Toaster Dials Mean Minutes?

    • December 9, 2014
    • YouTube

    There's been a "Life Pro Tip" going around the internet lately saying that the numbers on toaster dials are actually minutes. I was so sure it was false. Oh, I was so sure. I got four toasters set to "2", and I had one take to film it all in a back room at my office. This is that one take. Thanks to Dan W (@iamdanw) on camera and Jonty (@jonty) on toaster-wrangling! UPDATE: An error pointed out by a couple of folks in the comments: modern toasters likely don't use bi-metallic strips. They either use a capacitor charged through a variable resistor, or specialised silicon. See this great Technology Connections video.

  • S2014E94 The Hottest Place in Britain, and the BBC Theme Park

    • December 15, 2014
    • YouTube

    On Swanscombe Peninsula sits Gravesend Weather Station: a Met Office station that consistently records the hottest temperatures in the UK. Is it particularly warm there? Or have they put it in the wrong place? And what'll happen when they have to make room for Paramount London, the coming BBC-linked theme park?

  • S2014E95 Ley Lines and Avebury Henge, the Better Version of Stonehenge

    • December 22, 2014
    • YouTube

    On the winter solstice, I trekked out to a cold and muddy Avebury Henge, out in Wiltshire, to talk about two things: first, the peculiar and mostly-British belief of ley lines, and second, the fact that it's basically a hipster version of Stonehenge: bigger, cooler, and you've probably never heard of it. Oh - and if you want to play about with ley line data yourself, I made http://www.tomscott.com/ley/ a couple of years ago. It still gets me occasional disappointed emails from believers. And yes, I know that's Ben Goldacre in the by-line of the Guardian. He wrote the article about it; Matt Parker did the mathematics, but most of those references have since gone offline. (I'm willing to bet someone'll comment about that without reading the description within the first few hours after this goes up.)

  • S2014E96 Can It Be "Too Cold To Snow"?

    • December 26, 2014
    • YouTube

    There's an old saying: that it's "too cold to snow". Can that really be true? It started snowing outside, on the day after Christmas, and so I thought I'd do a bit of research, check my facts, then hurry out to film something in the cold.

  • S2014E97 Why Doesn't Britain Have Rabies?

    • December 29, 2014
    • YouTube

    In 1993, the New York Times called rabies a "shared national nightmare" for Britain. For younger viewers, and those outside the UK -- say anyone who doesn't remember the Channel Tunnel opening -- "rabies" may just be one of those things you hear about on the news sometimes. But there are a lot of people who are proud of Britain being free of it. Here's why. I'm indebted to Pemberton and Worboys' wonderful "Mad Dogs and Englishmen: Rabies in Britain 1830-2000" - http://amzn.to/1xr1x2B - for a lot of fact-checking here, as well as inspiration. It turns out this is a properly fascinating subject: I had to cut so many fascinating things out of my script. (A five-minute monologue to camera on a windy beach isn't interesting.) I recommend you at least get the book from your local library. For example... FACT: The requirement for muzzling dogs extended to tiny, tame lapdogs, but not to "sporting" dogs, those used for hunting -- because the men writing the laws didn't want to muzzle their...

Season 2015

  • S2015E01 Why The Prime Meridian Isn't At 0º

    • January 5, 2015

    If you travel to Greenwich, stand on the famous Prime Meridian Line -- which is marked with a physical line and a sculpture at the Royal Observatory -- and look at your GPS, it won't read 0° longitude. It'll be slightly out. Who's right? And why?

  • S2015E02 The Moonpig Bug: How 3,000,000 Customers' Details Were Exposed

    • January 6, 2015

    It's been all over the British news today: developer Paul Price found a bug in photo-crap-maker Moonpig's site, one that might have exposed three million users' personal information. Paul's got a great technical post about it at https://www.darkport.co.uk/blog/moonp... -- but there's no decent non-techie explanation except for the one-paragraph summaries in newspapers. It was a perfect storm of tech incompetence: here's how to avoid doing it yourself.

  • S2015E03 The Magic Roundabout: Swindon's Terrifying Traffic Circle and Emergent Behaviour

    • January 12, 2015

    Despite its reputation as being a Traffic Circle of Hell, Swindon's Magic Roundabout -- like the couple of other "ring junctions" in the UK -- is a triumph of road design. Here's why it works so well.

  • S2015E04 The British Rail Flying Saucer

    • January 19, 2015

    In the 1970s, at the height of the space race, British Rail -- the government organisation that ran all the UK railways -- patented a flying saucer. How? Why? And could it ever have worked?

  • S2015E05 How Many Colours Are In A Rainbow?

    • January 26, 2015

    Yes, there are more than seven; but they include a few colours that most people can't see, too. We're going to trace a two-minute course through Isaac Newton, cataracts, Claude Monet, and the wonders of evolution.

  • S2015E06 How Green Screen Worked Before Computers

    • February 4, 2015

    For those of us who grew up in the age of CGI, green screen is just "a thing that computers do". But how did effects like this work before the age of pixels? With the help of some suitably shiny graphics, here's a quick summary.

  • S2015E07 Standing in a Hurricane in Slow Motion

    • February 8, 2015

    Comic Relief raises millions every year to fight poverty around the world. This year, they're asking you to make your face funny for money -- so here I am, in the wind tunnels at the University of Southampton, ready to find out what it's like to stand in a hurricane. Please, if you can: donate or, better yet, fundraise yourself: http://rednoseday.com/ideas/

  • S2015E08 The Driverless Cars of Greenwich

    • February 16, 2015

    Thanks to the Transport Research Laboratory for letting me have a test ride on one of the Meridian Shuttles they're testing on the Greenwich Peninsula! If you want a ride, they'll be there, on and off, between March and May -- not often enough to make a special trip worth it, but if you're in the area, see if you can spot one!

  • S2015E09 How to Program a Quantum Computer (sort of)

    • February 23, 2015

    This isn't going to give you all the details of how to program a quantum computer: but it'll at least explain what you're doing in the simulator! Play here: http://www.bristol.ac.uk/physics/rese... -- I don't understand it, but then I don't have a qualification in quantum physics! Thanks to Jacques Carolan, and all the team at Bristol University's Centre for Quantum Photonics -- and thanks to Tom Morris for holding the camera!

  • S2015E10 Turnpikes and Tolls: What if all major roads were private?

    • March 2, 2015
    • YouTube

    The idea of a "public road network" is a relatively modern one. After all, the US Interstate System was only finished in 1991, and UK motorways aren't that much older. What if history had taken a different turn? Let's talk about turnpikes, toll roads, and perhaps even zeppelins.

  • S2015E11 The Bubble: imagine the web without trolls, or shocks, or spam

    • March 9, 2015
    • YouTube

    What if you could have a perfect filter for the web? Anything you'd regret seeing or reading: it's gone before you even see it. Welcome to the Bubble.

  • S2015E12 How To Make Something One Atom Thick

    • March 16, 2015
    • YouTube

    I took a trip to the University of Bristol, to have a look inside a nanomaterials lab, and to be surprised at a combination of massively expensive equipment and very basic tools... Thanks to the Bristol Centre for Functional Nanomaterials and the Chemical Imaging Facility at the University of Bristol -- and to Kate Oliver and Andy Collins!

  • S2015E13 The 400,000,000-Year Link Between Scotland and Canada

    • March 23, 2015
    • YouTube

    Back in the Caledonian orogeny, 400 million years ago, two bits of the Earth's crust began to collide. The result, a long time later, was the Central Pangaean Mountains: and now, you can find their remnants all over the globe.

  • S2015E14 7 Illegal Things To Do In A British Election

    • March 30, 2015
    • YouTube

    Don't worry: unlike last time I did a video like this, I'm not actually going to attempt to do any of these. I swore off politics a long time ago! Purdah also applies to civil servants, who basically can't do anything public for weeks. All the government departments' Twitter and Facebook accounts will be going very quiet...

  • S2015E15 The Human-Powered, Giant Theme Park Playground: Ai Pioppi

    • April 6, 2015
    • YouTube

    In the foothills of the Dolomites, an hour or so north of Venice, lies Ai Pioppi, a restaurant that's home to an astonishing, giant, human-powered, kinetic-art theme park playground. It was designed and made by a man called Bruno over forty years, and it's free for folks who eat at the restaurant. I'll be honest: I sort of thought it was a myth. The idea of unattended, huge kinetic ride-on sculptures was surely false? There was some evidence: a very artfully-shot documentary, and some shaky tourist footage, but I couldn't quite believe that something this potentially dangerous could still exist. So on Easter weekend, when it was quiet, Paul (@cr3) and I took a road trip to try it. And it's real. It's very, very real. Watch as we try and take a somersault on the Bicycle of Death. And if you don't take the right amount of caution, it can hurt you -- although my eventual injury didn't come through any rides, but just by tripping over by running!

  • S2015E16 Ships, Mines and Magnetism

    • April 27, 2015
    • YouTube

    This weekend, the Royal Navy was offering public tours of HMS Defender, one of their new-generation Type 45 destroyers. It's an astonishing ship: about 8,000 tonnes of steel and high-tech equipment designed to defend an entire fleet against air and missile attack. There's another type of attack it's more vulnerable against, though: the sea mine. And by luck, there was a good example of mine defence docked a little way upriver...

  • S2015E17 Risk, Immortality, and the Terrifying Pulpit Rock

    • May 5, 2015
    • YouTube

    In a fjord near Stavanger, in southern Norway, is Preikestolen: Pulpit Rock. It's known as one of the world's scariest tourist attractions, for good reason -- but despite the millions that visit it, it's pretty safe. At least, for current human values of safe. Let's talk about risk, immortality, and what it means to be human. Thanks to my friends Tim, who held the camera, and Matt, who got the shot from the boat below. Tim did manage to dangle his legs off the end: I got a photo of him, while muttering "no, no, no, no" under my breath...

  • S2015E18 How The Netherlands Stopped The Wind

    • May 18, 2015
    • YouTube

    The Delta Works, to the west of the Netherlands, are one of the modern wonders of the world. But there's other, lesser-known infrastructure there too: including the Rozenburg Wind Wall, on the Caland Canal, which turns a dangerous, windy stretch of canal into a much more navigable bit of water. It's a triumph of humanity over nature, and it's astonishing.

  • S2015E19 Why Computers Suck At Translation

    • May 21, 2015
    • YouTube

    Machine translation's a useful tool, don't get me wrong. But if you actually try to use it for regular conversation, it'll fall down really quickly. Why? What makes it so difficult?

  • S2015E20 The Speed of Outrage: Tom Scott at Thinking Digital 2015

    • May 22, 2015
    • YouTube

    On stage at Thinking Digital 2015, I talk about angry people, livestreaming, and how nothing seems to have changed recently. Thanks to all the crew, volunteers, sponsors and technical team at Thinking Digital -- I'm using several camera angles and the audio from their livestream, plus my Periscope broadcast and a GoPro from the front row (thanks Emilia)!

  • S2015E21 The Fictional Bridges That Became Real

    • May 25, 2015
    • YouTube

    In Spijkenisse, in the Netherlands, are a set of small bridges that most of Europe should recognise instantly: because they're the fictional ones from their banknotes, made real as a wonderful piece of public art and infrastructure.

  • S2015E22 Crash Blossoms and Being Drunk: Ambiguity

    • May 28, 2015
    • YouTube

    One comma can make a lot of difference. Language is ambiguous -- but in some very specific ways. Here's how.

  • S2015E23 The Effective Power Bug: Why Can Weird Text Crash Your iPhone?

    • May 29, 2015
    • YouTube

    There are all sorts of theories about why a string of weird, mostly-Arabic text can crash your iPhone. I've hunted through them, summarised the ones that seemed plausible, and the first part of this is a run-down of what's going on. The second part: well, I'm going to take a punt at explaining why Arabic, in particular, causes this bug -- and hopefully we'll see if I'm right or wrong soon!

  • S2015E24 The Most Complex Borders in Europe: Why Do We Have Nations?

    • June 1, 2015
    • YouTube

    Yes, plenty of folks already know about the most complicated borders in Europe, in Baarle-Nassau (the Netherlands) and Baarle-Hertog (Belgium). But why did we end up with this particular system? Why do we have nations in the first place? Most historians would say it goes back to something called the Peace of Westphalia, many years ago...

  • S2015E25 Why Can't Adults Learn Languages Like Children?

    • June 4, 2015
    • YouTube

    Kids learn languages really easily, don't they? There's this thing in your brain that just works it out -- but it switches off when you're an adult. Right? Well, maybe. But it's not that simple.

  • S2015E26 Paternoster Lifts: Dangerous, Obsolete and Quite Fun (including over the top!)

    • June 8, 2015
    • YouTube

    There aren't many paternoster lifts left in the world: they're inaccessible, tough to maintain and a bit more dangerous than a regular lift. But some of them still exist: so if you're ever nearby, do stop by the University of Sheffield's Arts Tower and have a ride up and down. Just don't go over the top. Thanks to Chris Dymond, who was my camera operator for this trip to Sheffield!

  • S2015E27 Long and Short Words: Language Typology

    • June 11, 2015
    • YouTube

    Some languages have longer words than others -- but that's not just a simple choice. There's a lot of different ways to mix up morphemes, even if they all mean the same thing in the end.

  • S2015E28 The Toxic Blue Lagoon of Buxton

    • June 15, 2015
    • YouTube

    In a disused quarry at Harpur Hill, near Buxton, there's a bright blue lagoon. It looks like a perfect place to cool off in summer. And it is, if you enjoy skin irritation and fungal infections. But the strange thing is: I arrived expecting to find it black, not blue...

  • S2015E29 What Counts as a Word?

    • June 18, 2015
    • YouTube

    "Word Count" is going to count plenty of things that aren’t words too -- and it doesn’t get to a more fundamental question: what actually is a word?

  • S2015E30 The Sightlines of London

    • June 22, 2015
    • YouTube

    There's a strange avenue of trees in Richmond Park, ten miles from St Paul's Cathedral; and an odd, wedge-shaped skyscraper in the city. At the New London Model, at the NLA Galleries at the Building Centre, I explain both of these. London is going vertical: but there are quite a few places where tall buildings aren't allowed, and here's why. Thanks to Dan W on camera, and to the team at the New London Model!

  • S2015E31 What's The Doomsday Seed Vault Really For?

    • June 29, 2015
    • YouTube

    You might have heard of the Svalbard Global Seed Vault: it's called the "doomsday vault", the backup of last resort for if the apocalypse happens. Except... well, perhaps that's a bit too dramatic.

  • S2015E32 Why Leap Seconds Cause Glitches

    • June 30, 2015
    • YouTube

    (EDIT: Of all the things not to fact-check! It's UTC, not UCT. Which is short for Coordinated Universal Time, because reasons. Well, that's embarrassing.) There's a leap second tonight! And while there's not the Y2K-scale of disaster being predicted for it, there are probably going to be a few problems. Here's why computers have trouble with something that should, in theory, be pretty simple.

  • S2015E33 The Sundial That Works 24 Hours A Day

    • July 1, 2015
    • YouTube

    In Svalbard, in the Arctic Circle, there's a sundial that works 24 hours a day! Sort of. When it's sunny. Which it wasn't. Basically, don't rely on this for telling the time. CORRECTION: "solstice", not "equinox".

  • S2015E34 How To Visit Svalbard

    • July 2, 2015
    • YouTube

    I had an enormous amount of B-roll footage of Svalbard that I couldn't use, and the internet had a lot of questions about how to get there. Time to solve both those problems in one go!

  • S2015E35 The Islands Where Guns are Required

    • July 3, 2015
    • YouTube

    Welcome to Svalbard, a group of islands in the High Arctic, north of Norway; the one place on the planet where carrying a gun is a legal requirement, and for a very good reason.

  • S2015E36 Are Batteries Heavier When They're Full? (with Robert Llewellyn!)

    • July 7, 2015
    • YouTube

    Robert Llewellyn is lovely! He agreed to drive me at 135mph for this video, and I was in a remote controlled car that he drove over on his channel.

  • S2015E37 The Giant Cranes and Robots That Keep Civilisation Running

    • July 13, 2015
    • YouTube

    With many, many thanks to all the team at DP World London Gateway (http://londongateway.com - http://twitter.com/LondonGatewayUK )! This isn't a sponsored video: they just went above and beyond to make sure this looked good, and I'm so grateful to them.

  • S2015E38 The world's largest indoor waterpark

    • July 20, 2015
    • YouTube

    The biggest uninterrupted indoor space on the planet, Tropical Islands Resort ( https://www.tropical-islands.de/ ), sits on an old airfield in Germany. How on earth could anyone afford to build something that big... and then use it as a waterpark? Well, the story's a bit more complicated than that. (And full disclosure: this isn't a sponsored video, no money's changed hands, but Tropical Islands were happy to let me in free and give me a ride up on their balloon. I'm grateful to all the team there for a fantastic day!)

  • S2015E39 Containing the Worst Nuclear Disaster in History: Chernobyl's New Confinement Structure

    • July 27, 2015
    • YouTube

    Deep in rural Ukraine sits what was once the V.I. Lenin Nuclear Power Station. Now, it's the site of the worst nuclear disaster in human history: and one that still needs to be contained, thirty years later. How do you deal with something that'll be this toxic for so long into the future?

  • S2015E40 Radioactive Bananas in Chernobyl

    • July 28, 2015
    • YouTube

    In the abandoned theme park of Pripyat, I have a banana. For scale. Let's talk about the Banana Equivalent Dose. Thanks to Ashley Shepherd for the drone footage

  • S2015E41 How to Visit Chernobyl

    • July 29, 2015
    • YouTube

    Here's the behind-the-scenes video from Chernobyl week, where Paul (@cr3) and I answer how we got here, and what it's like -- while you see all the B-roll footage that I couldn't fit into the regular videos!

  • S2015E42 The Russian Woodpecker of Chernobyl: How To See Over The Horizon

    • July 31, 2015
    • YouTube

    Thanks to Ashley Shepherd for the drone footage - see the full video on his channel here: • 4K Drone Footage from Chernobyl and P... This is the Duga-3 array, inside the Chernobyl Exclusion Zone. It's an incredible piece of Soviet engineering, capable of sending radar pulses so powerful they could see over the horizon. Which, when you think about it, is more complicated than it might initially appear...

  • S2015E43 The Weirdest Bridge in Wales: The Newport Transporter Bridge

    • August 3, 2015
    • YouTube

    There are only a few transporter bridges still working in the world. What are they for? Why weren't there more of them? And why don't we build them any more? Those answers and more, from an unsettlingly high position fifty metres above the River Usk.

  • S2015E44 Hovercraft, Concorde, and the Dreams of the 1970s

    • August 10, 2015
    • YouTube

    Hovercraft were the future. So what went wrong? I had a brief stop on the Isle of Wight last week, and had one chance to get this video. Turns out hovercraft are loud, and you shouldn't stand too close behind one. Correction to this video: a comma got moved in the script. The section about Concorde should read "after one of the planes crashed, in 2003 the airlines decided...". Punctuation's important!

  • S2015E45 The Abandoned Village of Imber: How Far Can Emergency Powers Go?

    • August 17, 2015
    • YouTube

    For a few weeks every year, the road through the abandoned village of Imber, in the middle of the military firing range of Salisbury Plain, is open to the public. How can the government seize and evacuate an entire village? And would it be possible now? Thanks to Paul (@cr3) for his camerawork!

  • S2015E46 So You've Learned To Teleport

    • August 20, 2015
    • YouTube

    A guide for the newly empowered, courtesy of the Superhero Help Academic Foundation Trust, Education Division. Sure, you could jump a few places and fight crime: or you could take over the world. Thanks to YouTube Space London, who offered me time on their science lab set -- and thanks to Matt Gray (http://mattg.co.uk - @unnamedculprit) who directed the shots! Oh, and if you want to see teleportation in fiction done well, have a look at Steven Gould's Jumper series -- the later books really start playing around with physics in fun ways, like building a... well, I'll leave that for you to read. (Amazon UK affiliate cash-in link: http://amzn.to/1gYOEZx )

  • S2015E47 G-Forces, Gliders, and Graveyard Spirals

    • August 24, 2015
    • YouTube

    Time to learn about graveyard spirals, while trying not to be in one! I was so far outside my comfort zone for this. Thank you to Bruce Duncan from the Edinburgh University Gliding Club, who got me safely up and down again, and to Alistair Hammond from the Loughborough University Gliding Club, who managed to talk me into experiencing serious G-forces for the first time in my life! We launched from Bicester Gliding Club. I'd seriously recommend giving it a go if you can!

  • S2015E48 Amphibious Weed-Cutting Boat!

    • August 27, 2015
    • YouTube

    Thanks to the Environment Agency for letting me film! The invite came via my friend Paul Curry - you should read his write-up, which features a few more details about the boat, its controls, and hunting for eels

  • S2015E49 The secret underground pipeline across Britain

    • August 31, 2015
    • YouTube

    On a windy day in Gloucestershire, I find one of the few parts of the once top-secret GPSS aviation fuel pipeline (now called CLH-PS after privatisation) that pokes above ground, and explore the balance between secrecy and safety.

  • S2015E50 Sinking Ship Simulator: The Royal Navy's Damage Repair Instructional Unit

    • September 7, 2015
    • YouTube

    With many, many thanks to the Royal Navy and everyone at HMS Excellent! http://royalnavy.mod.uk How do you train sailors to save a sinking ship? Sure, you can teach them the theory, but there's no replacement for having to hammer softwood wedges into deck and bulkhead splits that are spraying cold, high-pressure water in your face. At HMS Excellent in Portsmouth sits Hazard, a Royal Navy Damage Repair Instructional Unit (DRIU). Every Navy recruit who's going out to sea will have to go through something like this -- and on a much harder level than we did! But then, they'll have had months of training and teamwork beforehand...

  • S2015E51 The Man Who Had Himself Taxidermied: Jeremy Bentham

    • September 14, 2015
    • YouTube

    In the cloisters of University College London sits noted philosopher Jeremy Bentham: the man who asked to be dissected, stuffed and preserved in his will. WARNING: This video contains a really gross shot of his preserved, severed head.

  • S2015E52 Real Life Emoji Keyboard!

    • September 21, 2015
    • YouTube

    This is the most ridiculous thing I've built in a long while: a full-size, real-life emoji keyboard, made of 14 keyboards and over 1,000 individually placed stickers. And yet, it's got everything from Unicode 8 -- but not yet the candidates from Unicode 9. I might need another keyboard for them, next year.

  • S2015E53 The Link That Can Crash Chrome: http://a/%%30%30

    • September 22, 2015
    • YouTube

    In the news today: a link which, when moused over or clicked on, crashes Google Chrome. It's a heck of a bug: but how does it work, and what does it have to do with "null-terminated strings"?

  • S2015E54 The Art of the Bodge: How I Made The Emoji Keyboard

    • September 24, 2015
    • YouTube

    Here's the behind-the-scenes "how I made the emoji keyboard" video! If you haven't seen the original: • Real Life Emoji Keyboard! But the thing is, the truth is basically just "I bodged some stuff together". Which gives me the opportunity to tell some stories...

  • S2015E55 Archimedes and a Boat Lift: the Falkirk Wheel

    • September 28, 2015
    • YouTube

    The Falkirk Wheel sits between Edinburgh and Glasgow, in the southern parts of Scotland, and it's the world's only rotating boat lift. There's some very clever design going on here -- and some physics that goes all the way back to Ancient Greece.

  • S2015E56 Simulating a Universe: the EAGLE Project at Durham University

    • October 5, 2015
    • YouTube

    Thanks to all the folks at the Institute for Computational Cosmology! You can find out more here: http://icc.dur.ac.uk/Eagle/

  • S2015E57 Britain's End-of-the-World Bunkers

    • October 8, 2015
    • YouTube

    Deep in the Essex countryside lies Kelvedon Hatch, and the Secret Nuclear Bunker that's now an off-beat tourist attraction. Inside, I met up with Greg Foot from the BBC's Brit Lab, and discovered the rather optimistic 1980s plans for tracking nuclear fallout, and helping the survivors of a nuclear war... if there were any.

  • S2015E58 The Strange St Pauli Elbtunnel

    • October 12, 2015
    • YouTube

    Under the Elbe river in Hamburg, Germany, lies the Old Elbe Tunnel in St Pauli. Like early 20th century tunnels around the world, it has lifts or stairs to take you down and under the river. But this is on a whole different scale to those you might have seen elsewhere...

  • S2015E59 The Bielefeld Conspiracy

    • October 19, 2015
    • YouTube

    In north-west Germany sits Bielefeld, a city complete with castle, cathedral and citizens. Just one catch: according to something that's half urban legend, half in-joke, it doesn't exist. Let's talk about belief and Bielefeld.

  • S2015E60 Goalball: Blindfold Paralympic Reverse Dodgeball

    • October 26, 2015
    • YouTube

    Goalball was invented after World War 2 to help rehabilitate blinded ex-servicemen. Nearly seventy years later, it's now a Paralympic sport, where every player has a full blindfold and puts themselves deliberately in the way of a very heavy ball going at 25mph -- and in world-class games, anything up to 60mph. Do try this at home - just with the right safety equipment.

  • S2015E61 Why I Can't Show You The H******** S***

    • November 2, 2015
    • YouTube

    Trademark rights are an interesting thing. You can see this thing from all over the city of Los Angeles: but if you want to use it for anything commercial, well, then you're going to start having some trouble.

  • S2015E62 The Collapsed Dam That Stopped Los Angeles

    • November 9, 2015
    • YouTube

    Los Angeles needed water, and lots of it. It still does. And that water comes from the LA Aqueduct, masterplanned by William Mulholland. The end of his career, though, wasn't such a triumph. This is the story of the St Francis Dam, and the collapse that stopped Los Angeles from taking over an entire valley. CORRECTION: It actually held back 47 million tonnes of water, 470 times more than I said. I mistook the dam volume for the reservoir volume when researching! Thanks to Josh for pointing that out.

  • S2015E63 How The Rosetta Stone Unlocked Hieroglyphics

    • November 23, 2015
    • YouTube

    The Rosetta Stone is one of the most famous archaeological finds in history: and it was the key to cracking Egyptian hieroglyphics. And while it took scholars years to work it out, there was one clue in there that helped unlock everything that followed. After hours in the British Museum, I went to explain...

  • S2015E64 700 Flavours of Soda Pop: Galco's in Los Angeles

    • November 27, 2015
    • YouTube

    Welcome to Galco's Soda Pop Stop, and the wonderfully knowledgeable John Nese. Thank you to John for his time, and to all the team at the Soda Pop Stop! You can visit them here: http://www.galcos.com/ In Highland Park, in Los Angeles, sits something that most business analysts would say couldn't exist any more: an independent store selling soda pop. 700 flavours of it. There was so much I couldn't include in this thanks to my dodgy camerawork -- the create-your-own soda section, John's absolutely perfect recommendation for a soda I'd like. But hopefully I got all the important parts! If you're ever nearby, do stop in.

  • S2015E65 Drones, Deserts and Danger

    • December 1, 2015
    • YouTube

    In the desert of California, we're flying drones. It's safe out here: but just how many people are flying near airports? The answer: a lot.

  • S2015E66 Big Industrial Simulators in Finland

    • December 7, 2015
    • YouTube

    Mevea Simulation sit in Lappeenranta in Finland, and they may well make the greatest industrial simulators on Earth. I had to go check them out. And no, this isn't a sponsored video: I found out about them, emailed them out of the blue, and they were nice enough to agree to show us around and use their contacts to get us to the steelworks! (See the behind the scenes video for more!)

  • S2015E67 Automated Weapons and the Battlefield of 2050

    • December 14, 2015
    • YouTube

    In Europe, you're legally protected from "automated decisions". The US Army, in a recent report, may have to take issue with that. What's the battlefield of the future going to look like? And why is there a tank painted bright blue in the middle of London?

  • S2015E68 A Christmas Computer Bug, and the Future of Files

    • December 21, 2015
    • YouTube

    In 1987, a German student wrote CHRISTMA EXEC - a virus whose basic mechanisms still work if you port them to today's desktop computers. Why haven't we changed in nearly 30 years? And what could we do instead? Merry Christmas to all, and to all a good night.

  • S2015E69 Seeing Other People's Steam Accounts: The Christmas Caching Catastrophe

    • December 26, 2015
    • YouTube

    On Christmas Day, someone at Steam changed a setting and brought down their whole games platform. I wasn't expecting to do a video this Christmas, but when enough people tweet me, it turns out I can be convinced... (I should note: while Steam have officially confirmed "a caching problem", I've got no privileged information about the specifics. It's possible (but unlikely, I think) this was a misconfiguration at Akamai, or a bizarre server bug that happened to exactly match a much more likely caching misconfiguration error!)

Season 2016

  • S2016E01 Why Britain Sucks At Product Placement

    • January 4, 2016
    • YouTube

    Britain has some of the strongest product placement rules in the world - and it means YouTube vloggers have to declare their advertising before you click on the video. Why? And what did it mean for our version of The Price is Right?

  • S2016E02 Crosswalks Don't Always Make You Safer

    • January 11, 2016
    • YouTube

    Zebra, pelican, puffin, toucan, pegasus: Britain names our crosswalks after creatures, thanks to historical reasons. But do they actually make you safer? Well, not always.

  • S2016E03 Calling The Police Doesn't Charge Your Phone Battery

    • January 18, 2016
    • YouTube

    In Slough, outside the headquarters of Blackberry, I talk about an urban legend that's almost true: the idea that calling 999, the British emergency number, could actually charge your phone battery. It's not quite right, but it's close. (It's easy to make fun of Slough. There's no second part to that, it's just easy to make fun of Slough.)

  • S2016E04 Why Wuppertal's Suspended Monorail Wasn't The Future Of Travel

    • January 25, 2016
    • YouTube

    In Wuppertal, Germany, there's the Schwebebahn: a suspended monorail that carries 80,000 people a day above the streets of the city, and above the river Wupper. It's a wonderful thing: but it wasn't the future of travel, and here's why.

  • S2016E05 How "Crash Safari" Reboots Your Phone

    • January 25, 2016
    • YouTube

    Crash Safari dot com -- and no, I'm deliberately not linking to it! -- crashes your phone. Or your browser. Pretty much instantly. How? And after several months of obscurity, why did it go viral so fast today? And yes, I did have to put this video together really quickly. Thank you SO MUCH to the wonderful Matthew Walster, @dotwaffle on Twitter, who not only found me somewhere to film at short notice but also volunteered to hold the camera. I am massively grateful to him -- thank you!

  • S2016E06 How To Make Snow

    • February 1, 2016
    • YouTube

    In Lillehammer, Norway, it's time to make some snow. With science. As well as being one of my regular videos, this is an ad for the 2016 Youth Winter Olympic Games! Subscribe to the Olympic YouTube channel: http://bit.ly/1MFol69 - and see the rest of this description for more links.

  • S2016E07 The Second Largest Freezer in Norway

    • February 3, 2016
    • YouTube

    The famous Lillehammer Bobsleigh Track! Massive, fast, and working in summer. Here's how. As well as being one of my regular videos, this is an ad for the Youth Winter Olympic Games! Subscribe to the Olympic YouTube channel: http://bit.ly/1MFol69 - and see the full description for more links.

  • S2016E08 The Biathlon: Firing Guns Under Pressure

    • February 5, 2016
    • YouTube

    Welcome to one of the toughest winter sports - although it might not look like it. As well as being one of my regular videos, this is an ad for the Youth Winter Olympic Games! Subscribe to the Olympic YouTube channel: http://bit.ly/1MFol69 - and see the full description for more links.

  • S2016E09 What Counts as the World's Largest Clock?

    • February 8, 2016
    • YouTube

    Time is complicated. World records are complicated. Put the two together, and you've got a fight about large clocks between Düsseldorf's Rheinturm, the Mecca Clock Tower, and a laser sculpture from Burning Man.

  • S2016E10 Why 1/1/1970 Bricks Your iPhone

    • February 12, 2016
    • YouTube

    This video has a correction! Turns out "Nuclear Gandhi" is a myth: https://kotaku.com/civilization-creat... - for all corrections on this channel, see https://www.tomscott.com/corrections - People keep finding bugs in iPhones, and other people keep asking me to make videos about them. So here you go! Here's a tale of binary, of the Unix epoch, and a date beyond the lifespan of the universe.

  • S2016E11 Power, Politics and Pragmatism: The British National Grid

    • February 15, 2016
    • YouTube

    Back in the 1920s, electricity was generated by hundreds of small companies in towns and cities across the country. They were all different and mostly incompatible: London alone had 24 voltages and 10 frequencies. How did we get from there to the billion-pound tunnel projects of today?

  • S2016E12 Inside A Satellite Clean Room

    • February 22, 2016
    • YouTube

    Welcome to Innovative Space Logistics, in the Netherlands: they invited me inside their clean room to see an actual CubeSat satellite that's going into space soon! (No, this isn't a sponsored video: I paid my own way there!) Go look at their site: http://isilaunch.com - and if you need to send something into space, get in touch with them!

  • S2016E13 Unexploded Bombs off the British Coast: the SS Richard Montgomery

    • February 29, 2016
    • YouTube

    In the Thames Estuary, near a town called Sheerness, a few dozen miles east of London, lies a World War 2 shipwreck that contains over 1,000 tonnes of unexploded bombs. Is it a risk to the area? Or is it just an interesting historical artifact? The trouble is, no-one's quite sure...

  • S2016E14 Driving Through Russia Without A Visa: The Saatse Boot

    • March 7, 2016
    • YouTube

    In the south-east of Estonia, there's 800m of road where you can drive through Russia without a visa. We drove it. This video has a correction: Further research revealed that the camera tower Matt spots is, almost certainly, just a regular cell tower. Or, at least, that's what they want us to think.

  • S2016E15 Why You Should Write Down Your Goals

    • March 14, 2016
    • YouTube

    Don't worry, I've not gone all DJ Khaled. ???? Let's talk about an interesting quirk of psychology, and a TV "Year of Promise" telethon that didn't stick around too long. EDIT: my conclusions here are questionable.

  • S2016E16 Will YouTube Ever Run Out Of Video IDs?

    • March 21, 2016
    • YouTube

    In the URL of each YouTube video is the 11-character video ID, unique for each video. Can they ever run out? Just how many videos can YouTube handle? To work it out, we need to talk about counting systems, and about something called Base 64.

  • S2016E17 The First Ever Wireless Hack: Marconi vs Maskelyne

    • March 28, 2016
    • YouTube

    No, it wasn't called "hacking" back then: it was called "scientific hooliganism". Let's talk about Marconi, Nevil Maskelyne, and a demonstration that didn't go as planned. And go check out the Royal Institution's channel! • Slow Motion Contact Explosive - Nitro... I'm indebted to Sungook Hong's wonderful book "Wireless", which helped me track down some of the more obscure sources here -- and to the British Library, whose incredible archives and microfilm tapes helped me find the original newspapers and journals you see in the video.

  • S2016E18 Accidental Emoji Expert: Tom Scott at An Evening of Unnecessary Detail

    • April 4, 2016
    • YouTube

    On stage at An Evening of Unnecessary Detail - http://aeoud.com - I tell a dramatised and extremely shortened history of emoji, run through what's coming up in 2016, and have a look at what might be coming up for them soon. Also, I use the word "dysentry". Thanks to the Festival of the Spoken Nerd team for inviting me, and to the lovely audience and crew at the Backyard Comedy Club in Bethnal Green!

  • S2016E19 In Norway, Everyone Can Know How Much You Earn

    • April 14, 2016
    • YouTube

    Wage transparency is a strange concept for most of us: not so in some of the Nordic countries. And while Norway, Sweden and Finland differ in exactly the amount of access they give the public, fundamentally your tax return would be public knowledge there. So how does it affect the world? And is it a good idea?

  • S2016E20 Help, My Fusion Reactor's Making A Weird Noise

    • April 25, 2016
    • YouTube

    At the JET reactor at Culham Centre for Fusion Energy -- http://ccfe.ac.uk -- I talk to the engineers about fusion power, being the hottest place in the solar system, deliberate disruptions, and about the surround-sound speakers that give a diagnostic test you might not expect.

  • S2016E21 The Not-Quite-Robots That Help Fix Fusion Reactors

    • May 2, 2016
    • YouTube

    At Culham Centre for Fusion Energy -- http://ccfe.ac.uk -- my camera's being held by a robot. Well, not really by a robot. It's being held by a man called John. It's... complicated.

  • S2016E22 The Most Dangerous Stretch of Water in the World: The Strid at Bolton Abbey, Yorkshire

    • May 9, 2016
    • YouTube

    I know, I know, it's a clickbait title. But I stand by it, because the water is so deceptive, and so pretty, and there's a path that leads straight down to it and that jump looks very, very possible... The 12th century legend is the "Boy of Egremont", immortalised in poetry by the famous William Wordsworth. His "The Force of Prayer" is about the Strid and the Boy of Egremont, and the full text is here: http://www.bartleby.com/145/ww342.html Also, I need to make one correction: I say "a hundred metres upstream", but that shot's actually about that far downstream. I couldn't fix that in post, but since the river's basically the same for a mile or so in each direction with no significant confluences, it's a small enough slip that I don't think it's too bad. The amount of water is the same!

  • S2016E23 The Strangest Elevator In Italy: the Ascensore Castello d'Albertis-Montegalletto, Genoa

    • May 16, 2016
    • YouTube

    Continuing the occasional Weird European Infrastructure Tour: an Italian lift that switches direction from horizontal to vertical. And honestly, until someone pointed it out to me, I could not figure out how this could possibly be done safely. In hindsight, it was kind of obvious. (By the way, the Ascensore Castello d'Albertis-Montegalletto is known by a few names: I went by the one that seems most commonly used online by both Italian-speaking and English-speaking folk.)

  • S2016E24 Why Snow and Confetti Ruin YouTube Video Quality

    • May 23, 2016
    • YouTube

    Your sports team wins. The confetti drops. And suddenly, the video quality falls apart. Why? Let's talk about interframe compression, bitrate, and unnecessary green screen effects.

  • S2016E25 Why Web Filters Don't Work: Penistone and the Scunthorpe Problem

    • June 6, 2016
    • YouTube

    In a small town with an unfortunate name, let's talk about filtering and innuendo. And use it as an excuse for as many visual jokes as possible.

  • S2016E26 Why You Can't Advertise Cancer Cures In Britain

    • June 13, 2016
    • YouTube

    This week, TV star Noel Edmonds endorsed the "EMP Pad". He said it could help with cancer -- and the company behind that claim denied it right away. Here's why. (Pull down the description for a full bibliography!)

  • S2016E27 The Flower That Smells Like Death

    • June 20, 2016
    • YouTube

    There's a titan arum - a corpse flower - blooming at the Eden Project in Cornwall. For years, it stores energy: and then for 48 hours, it heats up and sends out the smell of decay and death through the rainforest. And it stinks.

  • S2016E28 Nobody's Exactly Sure How Much A Kilogram Is Right Now

    • June 27, 2016
    • YouTube

    Yes, it's only micrograms of difference, but it's still really weird: until 2018, the kilogram is defined as "the weight of this physical object". So what happens when that object changes?

  • S2016E29 The Man Who Invented, Then Hated, Shopping Malls

    • July 4, 2016
    • YouTube

    Victor Gruen is, according to history, the man who invented the shopping mall... but that wasn't quite what he was aiming for. And it seemed like an appropriate day to do a video about suburban sprawl -- happy Independence Day, America!

  • S2016E30 The Bus Replacement Rail Service (yes, that's the right way round)

    • July 6, 2016
    • YouTube

    This may be the most British video I've done in a while! But I saw the news story and immediately wanted to film it: the volunteer-run, narrow-gauge Leadhills and Wanlockhead Railway, in the south of Scotland, has stepped in to replace buses while a road is being resurfaced -- avoiding a 45-mile diversion and meaning that local residents can still get to their neighbouring village. This isn't the first bus replacement train in British history, but it's pretty rare. You can find out more about the Leadhills and Wanlockhead Railway here: http://www.leadhillsrailway.co.uk -- thank you so much to all the volunteers there for the time they spent with me today!

  • S2016E31 The Scientifically Inaccurate Dinosaurs That Must Stay That Way

    • July 11, 2016
    • YouTube

    In Crystal Palace Park, in South London, are 150-year-old dinosaur models: the first ever full-size replicas of extinct animals. But they're... well, they're a bit wrong, and they likely always will be. Here's why.

  • S2016E32 No, Pokémon Go Can't Read Your Email

    • July 15, 2016
    • YouTube

    The inevitable Pokémon Go security video. With many thanks to Simon Coxall - http://mushybees.tumblr.com/ - for the wonderful not-Pokémon illustrations, and to Sheila for holding the camera at very short notice! Here's the wonderful breakdown of the technical details by Ari Rubinstein: https://gist.github.com/arirubinstein... And have you, or someone you know, would like a guest slot for Things You Might Know or Amazing Places while I'm off in the Arctic, have a look at https://www.tomscott.com/guest for more details!

  • S2016E33 The Fake Vinegar In British Fish and Chip Shops

    • July 25, 2016
    • YouTube

    "Non-brewed condiment" is what they call it: it's chemically very similar to proper vinegar, a mixture of ethanoic acid, colourings and flavourings, but it's put together by just combining simple chemicals rather than brewing. Hardly anyone knows, and those that do know don't generally care; so here's my question. Does it matter?

  • S2016E34 The Mushroom Cloud Over Britain: RAF Fauld and the Hanbury Crater

    • August 1, 2016
    • YouTube

    Near the village of Hanbury is RAF Fauld. Once it was a munitions dump: now it's a crater. Here's why. (I'm indebted to authors, archivists and aerial crews for this video: here's a full bibliography and list of image credits!)

  • S2016E35 Hebocon UK: Deliberately Terrible Robot Fighting

    • August 8, 2016
    • YouTube

    If your robot-building skills aren't quite up to Battlebots or Robot Wars, then Hebocon might be for you. Described "as a robot sumo-wrestling competition for those who are not technically gifted", the emphasis is on having fun, entertaining the crowd, and "heboiness". At Electromagnetic Field 2016, a maker festival in the UK, I hosted one of the UK's first hebocon contests. I'll be honest: we skipped over a few of the more complicated rules about penalising high-tech robots in favour of entertaining the crowd, but no-one seemed to mind. Not even the actual Robot Wars competitors. Thanks to everyone who helped put this together: Alia Sheikh, Andrew Vine and Robert McWilliam on the film crew, Jim MacArthur who actually ran the show, and all the folks at EMF Camp -- and of course, all the people who built the robots!

  • S2016E36 The Problem With Renewable Energy (and how we're fixing it)

    • August 18, 2016
    • YouTube

    ( This isn't a sponsored video, but I am massively grateful to all the team at SSE! Go look: http://sse.com/whatwedo/ourprojectsan... , and pull down the description for more. ) As the world switches to renewable energy - and we are switching - there's a problem you might not expect: balancing the grid. Rotational mass and system inertia are the things that keep your lights from flickering: and they only appear in big, old, traditional power stations. Here's why that's a problem, and how we're likely going to fix it. CORRECTION: I say that turbines spin thousands of times "per second" when it should be "per minute".

  • S2016E37 The Battery That's Lasted 176 Years

    • August 22, 2016
    • YouTube

    In a laboratory at Oxford University sits the Oxford Electric Bell, which has spent 176 years constantly ringing. And no-one's quite sure what the battery that powers it is made of...

  • S2016E38 Why Mountain Dew Rots Your Teeth More Than Coca-Cola

    • August 29, 2016
    • YouTube

    "Hi Tom, I've got two of my sister's teeth dissolving in cola." That was the best pitch I got for guest videos - and so please welcome Chase from ScienceC, to talk about pH, TA, and show off some really disgusting close-ups of rotten teeth!

  • S2016E39 The Fake-British Ghost Town In China: Thames Town

    • September 1, 2016
    • YouTube

    Welcome to Thames Town, the fake-British ghost town in China. Why did they build it? Who lives there? And why is it all so quiet? Today, Collin from the Collin Sphere Travel Vlog is guesting on this channel to investigate!

  • S2016E40 Seeing Things: Visual Disturbances We All Experience

    • September 5, 2016
    • YouTube

    Inés is a PhD student researching insect flight at Oxford, and enjoys making videos about the fun and curious bits of science in her spare time!

  • S2016E41 Listening for Nuclear Tests at the Top of the World

    • September 12, 2016
    • YouTube

    At Qaanaaq, in Greenland, there's IS18: an infrasound station that's quietly listening for nuclear tests — or any other large bang. Here's what, why, and a few words the man who, for years, has been quietly keeping it running. Pull down this description for more! I'm here because of Chris Hadfield's Generator Arctic - go check out everyone else who was on the trip, and have a look at tickets for their show at Massey Hall, Toronto, on November 12th! http://generatorevent.com

  • S2016E42 The Front Falls Off: Glaciers Don't Go Backwards

    • September 15, 2016
    • YouTube

    Glaciologists will find this video obvious. Everyone else... well, maybe I slept through a bit of sixth-grade geography, but I didn't know this, and I reckon I should have done. Pull down the description for more! I'm here because of Chris Hadfield's Generator Arctic - go check out everyone else who was on the trip, and have a look at tickets for their show at Massey Hall, Toronto, on November 12th! http://generatorevent.com

  • S2016E43 No-One Knows Who Got To The North Pole First

    • September 19, 2016
    • YouTube

    I thought I knew who got to the North Pole first. It turns out that it's a lot more complicated than you might think. [Pull down the description!] Frederick Cook; Robert Peary; Roald Amundsen. They all have claims, and they can all be disputed for one reason or another...

  • S2016E44 Internet to the Arctic: A Greenlandic Relay Station

    • September 22, 2016
    • YouTube

    Jakob emailed me when I said I was headed to the Arctic, offering to help out with a video. I don't think he knew what he was signing up for! Thank you so much to both Jakob Schytz and John Davidsen: we had only a few minutes to film this before I had to be on the last Zodiac boat out of town, so I'm really happy with the result!

  • S2016E45 ᑖᒻ ᔅᑳᑦ and ᖃᓂᐅᔮᖅᐸᐃᑦ

    • September 26, 2016
    • YouTube

    Inuktitut syllabics are brilliant. A writing system that's not an alphabet, but something really clever: an abugida, one designed from scratch for a language very unlike anything European. [Pull down the description!]

  • S2016E46 Cold Wars, Cruise Ships, and the Northwest Passage

    • September 29, 2016
    • YouTube

    There are a few communities, up in northern Canada, with a dark history and a worrying future. Resolute is one of them, sat at the east of the once-legendary Northwest Passage. In a few years, it might be a tourist destination. Here's why. [Pull down the description!]

  • S2016E47 The Town Where Wi-Fi Is Banned: The Green Bank Telescope and the Quiet Zone

    • October 3, 2016
    • YouTube

    Tucked away in a valley in the Allegheny Mountains in West Virginia, is this: the Green Bank Radio Telescope, the largest steerable radio telescope in the world. And there are some rather special rules for the area around it... Thanks to Justin Richmond-Decker and Mike Holstine at the National Radio Astronomy Observatory in Green Bank for inviting me over and letting us film at the Telescope on one of their maintenance days! For more about the Green Bank Observatory: https://science.nrao.edu/facilities/gbt Want a tour? You can! (Although you won't be allowed up the telescope!) https://greenbankobservatory.org/visit/

  • S2016E48 Pod Cars of the Past and Future: The Morgantown PRT

    • October 10, 2016
    • YouTube

    The Morgantown Personal Rapid Transit system threads its way through West Virginia University, taking thousands of people a day around the campus, non-stop. It's a system that was meant to be the future: so why isn't it?

  • S2016E49 The world's most dangerous path... isn't.

    • October 17, 2016
    • YouTube

    El Caminito del Rey, the King's Little Pathway, is now a tourist attraction near Malaga, in southern Spain. But once, it brought adrenaline junkies here - sometimes fatally. Now it's safe: but the internet doesn't really know that yet...

  • S2016E50 The Zip Line Across Time Zones

    • October 24, 2016
    • YouTube

    In Sanlúcar de Guadiana, in Spain, there's a zip line called Límite Zero: the only cross-border zip wire in the world, landing in Alcoutim, Portugal. You land about an hour before you set off. It seemed like a good time to talk about programming.

  • S2016E51 The Solar Power Towers of Southern Spain

    • October 27, 2016
    • YouTube

    In the Aljarafe region of Spain, there's PS10 and PS20: concentrated solar power towers. They're huge towers surrounded by heliostats: movable mirrors that track the sun and reflect its light onto a giant boiler. They are beautiful, but they're also controversial: here's why.

  • S2016E52 The Bizarre Plan to Drain the Mediterranean: Atlantropa

    • November 1, 2016
    • YouTube

    Herman Sörgel wanted to create the largest civil engineering project the world has ever seen: a colossal dam across the Strait of Gibraltar, lowering the Mediterranean sea. There were, of course, a few problems with this.

  • S2016E53 The Grave of the Man Who Never Was: Operation Mincemeat

    • November 7, 2016
    • YouTube

    In a cemetery in Huelva, in Spain, is the grave of Major William Martin, of the British Royal Marines. Or rather, it's the grave of a man called Glyndwr Michael, who served his country during World War 2 in a very unexpected way... after his death.

  • S2016E54 The Spider Dress That Reacts To Personal Space Invaders

    • November 14, 2016
    • YouTube

    Fashion-tech designer Anouk Wipprecht has built a Spider Dress, which reacts based on how close you're standing and how quickly you approached. It's based on 'proxemics': the study of personal space... although how much of that counts as science is an open question. Let's talk about Edward T Hall, about what counts as science, and what happens if you get too close to someone.

  • S2016E55 3D Printing Stainless Steel with Giant Robot Arms

    • November 17, 2016
    • YouTube

    At Autodesk's Pier 9 workshop in San Francisco -- and no, this isn't an ad, pull down the description for more! -- there are giant robot arms using welders to 3D print with stainless steel. Which seemed like a good place to talk about programming abstractions, high-level languages, training pendants, and just how safe something like a robot arm needs to be. FULL DISCLOSURE: Autodesk were good enough to cover my travel to San Francisco, but they haven't paid me and they had no control over the script, the content or the final cut! You can see more about Pier 9 at http://www.autodesk.com/pier-9/

  • S2016E56 The World's Most Famous Teapot: The Utah Teapot

    • November 21, 2016
    • YouTube

    At the Computer History Museum, in Mountain View, California, there sits a small teapot. It's the world's most famous teapot, after a computer graphics researcher called Martin Newell digitised it. You've probably seen it: here's its story. And thanks to the Computer History Museum in Mountain View, California: you can visit them online here: http://www.computerhistory.org/

  • S2016E57 Arson as a Christmas Tradition: The Gävle Goat

    • November 28, 2016
    • YouTube

    In Gävle, Sweden, every year they build Gävlebocken, an enormous traditional Swedish Christmas straw goat. And every year, someone tries to burn it down. Here's to holiday traditions.

  • S2016E58 This giant model stopped a terrible plan

    • December 1, 2016
    • YouTube

    John Reber had a plan: to dam the San Francisco Bay. He convinced some politicians - and it took the US Army Corps of Engineers, and the Bay Model they built in Sausalito, to prove him not just wrong, but dangerously wrong.

  • S2016E59 The City of the Dead: Colma, California

    • December 5, 2016
    • YouTube

    In this small city near San Francisco, the dead outnumber the living by a thousand to one. There's some gruesome history here - and a few questions for the future.

  • S2016E60 Wheels, Bombs, and Perpetual Motion Machines

    • December 8, 2016
    • YouTube

    Perpetual motion machines are badly named. And impossible. But that hasn't stopped a lot of people trying to build them. Sure, you could try and argue physics: but there's a more common-sense reason why free energy's not coming any time soon.

  • S2016E61 In Old Movies, Why The Dial Tone After Someone Hangs Up?

    • December 12, 2016
    • YouTube

    Brace yourselves, we're about to get into some serious detail about telephone systems. Thanks to all the folks at Seattle's Museum of Communications! http://museumofcommunications.org/

  • S2016E62 Science vs the Weather: Salford's Energy House

    • December 19, 2016
    • YouTube

    At the University of Salford's Energy House, all the energy use is monitored and controlled, allowing researchers to experiment with all sorts of insulation and energy-saving techniques. But how to control for factors like sun, wind and rain? The solution: put the whole house inside an environmental chamber: a building inside a building that means the weather is controlled, repeatable, and part of the science.

  • S2016E63 Why YouTube Streams Don't Count For Christmas № 1

    • December 23, 2016
    • YouTube

    The Christmas Number One is a British tradition: but it's one that's having to go through some changes -- because not many people buy music any more. Here's how the charts are calculated these days, and why listening to "All I Want For Christmas" on repeat isn't going to change who wins. Thanks to Martin Talbot and all the team from the Official Charts Company, who agreed to an interview on less than two hours' notice for this video! You can visit them here: http://www.officialcharts.com/ or on Twitter at @officialcharts

  • S2016E64 Fallout Shelters and Zurich's Water: Swiss Resilience

    • December 26, 2016
    • YouTube

    Switzerland has a reputation for being... not paranoid, exactly, but certainly careful with their own safety. Zurich exemplifies this: not just with its fallout shelters, but with an entire backup water system. Just in case the world ends.

Season 2017

  • S2017E01 The Confusing Borders of Lake Constance

    • January 2, 2017
    • YouTube

    If you're sitting on a boat in Lake Constance, are you in three countries at once? Or just in one? Does it even matter? Because strangely, it turns out there are parts of the world where no-one really minds when international borders are not just ignored, but are completely undefined.

  • S2017E02 The Little-Known Patterns on British Streets

    • January 9, 2017
    • YouTube

    I thought about saying "secret patterns" or "mysterious patterns" in the title, but that'd be a lie: they're just mostly unknown! So let's talk about tactile paving, about design, about accessibility, and about those bumpy bits that you stand on when you're crossing a British street. // Thanks to Richard Holmes and the team from the RNIB!

  • S2017E03 Zero-G Experiments on Earth: The Bremen Drop Tower

    • January 16, 2017
    • YouTube

    In Bremen, Germany, there's a tower more than a hundred metres high: it's called the Fallturm, or the Drop Tower. If you want a cost-effective way to test an experiment in microgravity -- and your project can survive some pretty strong deceleration -- then this might well be a good place for you. And then there's the slingshot...

  • S2017E04 ᚼᛒ: Harald Bluetooth and Your Phone

    • January 23, 2017
    • YouTube

    The Jelling Stones, thousand-year-old Viking runestones, sit in the town of Jelling in Denmark. They tell the tale of Harald Bluetooth: one of the first kings of Denmark. Here's why his name is on your phone.

  • S2017E05 The world's most frustrating work of art

    • January 30, 2017
    • YouTube

    Near the town of Herning in Denmark sits Elia, a giant metal dome sculpture by Ingvar Cronhammar that occasionally spouts flame. I reckon it's the world's most frustrating piece of art, and here's why.

  • S2017E06 America's First Supermodel: Audrey Munson

    • February 6, 2017
    • YouTube

    One woman's face is all over New York, although you've probably never heard of her. This was written with Amor Sciendi: go check it out!

  • S2017E07 The World Is Slowly Running Out Of Sand

    • February 13, 2017
    • YouTube

    I never thought of sand as a non-renewable resource, but there's only a limited supply: and to make things worse, it keeps getting washed into the sea. At Cape May, New Jersey, the US Army Corps of Engineers have just finished rebuilding a beach: here's why.

  • S2017E08 Inside YouTube's Mixed Reality VR Lab

    • February 16, 2017
    • YouTube

    At YouTube Space New York, there's the Mixed Reality lab: a virtual reality setup using an HTC Vive, a third controller, and some fancy compositing equipment. It's brilliant, and I got to visit and look behind the scenes.

  • S2017E09 The Beer Pipeline of Bruges

    • February 20, 2017
    • YouTube

    In Belgium, there's an underground beer pipeline. Yes, it's inherently difficult to film something that's underground, but I headed over to Bruges to investigate anyway.

  • S2017E10 One Town, Four Elements: Ytterby

    • February 27, 2017
    • YouTube

    Yttrium, terbium, erbium and ytterbium were all named after one small town on the Stockholm archipelago. But it could have been different, and there could have been many other names. From a snowy bit of Sweden, and a mine that's a historical landmark, let's talk about discovery, chemists, and a man named Gadolin. Thanks to Paul (@cr3) on camera, and to @de_isja, @Ekkelos, @chemician and Chris Armstrong for proofreading the chemistry in the script!

  • S2017E11 You Can Hear The Difference Between Hot and Cold Water

    • March 6, 2017
    • YouTube

    Hot and cold water sound different when you pour them. When Steve pitched this to me, I didn't believe it, and then he sent me a couple of sound files, at which point I knew this was going to be the first of the guest videos!

  • S2017E12 The Disaster That Changed Engineering: The Hyatt Regency Collapse

    • March 13, 2017
    • YouTube

    The Hyatt Regency Hotel collapse was a disaster that changed engineering: it's taught in colleges and universities as a way to make it clear: you check and double-check everything. Something that seems like a subtle change can cause a catastrophic failure if it's not thoroughly checked first!

  • S2017E13 The Foil That Went To The Moon And Back

    • March 20, 2017
    • YouTube

    Amy brings with her one of the greatest props I've ever seen: an actual piece of Kapton foil from Apollo 11. This tiny little sliver of material went around the moon, and helped keep three people safe as they blasted out of our atmosphere and back. Here's why it was there, and why it changed colour!

  • S2017E14 Why Song Translations Usually Suck

    • March 27, 2017
    • YouTube

    It's been a long time since I did a linguistics video, but today Alex has stepped in and done a brilliant job. Song translations usually suck: and it's because you either have to lose the meaning or the sound. Let's talk about syllabic vs melisamatic singing, about music, and about Beethoven.

  • S2017E15 Why This “Zero Calorie Sweetener” Isn’t Zero Calories

    • April 3, 2017
    • YouTube

    Splenda is a "zero-calorie sweetener", at least in the US. Or at least, that's what it says on the packet. With the help of some Benedict's Solution, and his chemistry teacher, Alex is going to do some food science.

  • S2017E16 We hit a drone with lightning

    • April 10, 2017
    • YouTube

    At the University of Manchester's High Voltage Laboratory, we see what happens when a DJI Phantom 3 drone gets hit with an electrical impulse of 1.4MV - basically, a lightning strike. Actually, two Phantom 3 drones. We had a backup.

  • S2017E17 Voyager 1's Getting Closer to Earth Right Now

    • April 17, 2017
    • YouTube

    The Voyager 1 space probe is the furthest man-made object from Earth, and the fastest. But right now, it's moving towards us. Relatively speaking. At Mission Control for the Deep Space Network, inside NASA's Jet Propulsion Laboratory in Pasadena, let's talk about why -- and about how to stay in touch with something so small and so far away.

  • S2017E18 How To Not Break A Mars Rover

    • April 24, 2017
    • YouTube

    The Mars Yard, at NASA's Jet Propulsion Laboratory, is one of the closest simulations of Mars that we've got. Admittedly, there's a bit more atmosphere and gravity, but it's the only way to test what might happen before sending commands to a rover that's light-minutes away.

  • S2017E19 Why sci-fi alien planets all look the same

    • May 1, 2017
    • YouTube

    There's a reason that a lot of planets in American science fiction look the same: they're all filmed in the same places. But why those particular locations? It's about money, about union rules, and about the thirty-mile zone -- or as it's otherwise known, the TMZ.

  • S2017E20 How The Arecibo Telescope Could Help Save The World

    • May 8, 2017
    • YouTube

    The radio telescope at the Arecibo Observatory in Puerto Rico can do something that most radio telescopes can't: it can transmit. And that's useful for something other than sending messages to the stars: it might just help save the world one day.

  • S2017E21 Why The YouTube Algorithm Will Always Be A Mystery

    • May 15, 2017
    • YouTube

    The mysterious YouTube algorithm. It's confused people for years, and will continue to do so. So why isn't YouTube more transparent? It used to be that they wouldn't tell anyone how it works - but now, it's that they can't. Let's talk about deep learning algorithms, neural networks, and search engine optimisation.

  • S2017E22 The world's most powerful tidal current

    • May 22, 2017
    • YouTube

    Near Bodø in Norway, there's the strongest tidal current in the world: Saltstraumen Maelstrom, a constantly-changing rush of whirlpools, boils and vortices. It might not be quite the whirlpools of myth and legend, but it's still an impressive sight to see.

  • S2017E23 The poison garden of Alnwick

    • May 29, 2017
    • YouTube

    Inside the beautiful Alnwick Garden, behind a locked gate, there's the Poison Garden: it contains only poisonous plants. Trevor Jones, head gardener, was kind enough to give a guided tour!

  • S2017E24 Blocking People in Real Life: Tom Scott at An Evening of Unnecessary Detail

    • June 5, 2017
    • YouTube

    I'm not saying this would be a good idea, and it's definitely not a prediction of the future. It's just a story. I think. An Evening of Unnecessary Detail runs once a month from January to June at the Backyard Comedy Club in London: thanks to all the team there, including Matt Parker and Hannah Fisher! Tickets at http://aeoud.com

  • S2017E25 The Museum of Failure

    • June 12, 2017
    • YouTube

    In Helsingborg, Sweden, the Museum of Failure has just opened. It's just one room, but inside, curator Samuel West has assembled some of the world's greatest commercial disasters - and also a few things that just didn't work out the way anyone planned.

  • S2017E26 The Runways of Fire That Let WW2 Planes Land In Fog: FIDO

    • June 19, 2017
    • YouTube

    Landing on a runway surrounded by fire might not sound like a good idea, but it's better than trying to land without modern instruments in thick fog. This was FIDO: "Fog, Intensive, Dispersal Of" (originally "Fog Investigation and Dispersal Operations"), the Royal Air Force's strange but brilliant scheme that saved thousands of air crew lives. Unlike a lot of World War 2 experiments, this one not only worked, but was deployed around the country. It would have been used in peacetime, too, except for one rather big problem: petrol's really expensive.

  • S2017E27 An elevator that actually goes sideways

    • June 26, 2017
    • YouTube

    I've filmed a paternoster lift; I've filmed the strange Genoa elevator that sort-of goes sideways. So when I got an email from Thyssenkrupp, an elevator company, saying "come and see our Multi elevator that actually goes sideways", I wasn't going to turn it down. Full disclosure: Thyssenkrupp paid for my travel to Germany, but that's all they did. I'd got in touch with them last year asking to see this when it opened; their PR firm replied, offering to fly me out. They had no editorial control over this, and didn't get to see it before it was uploaded!

  • S2017E28 Why The Government Shouldn't Break WhatsApp

    • July 3, 2017
    • YouTube

    Encryption backdoors - breaking WhatsApp and iMessage's security to let the government stop Bad Things - sounds like a reasonable idea. Here's why it isn't.

  • S2017E29 Why old screens make a ʰᶦᵍʰ ᵖᶦᵗᶜʰᵉᵈ noise

    • July 10, 2017
    • YouTube

    Last week I made a video surrounded by old-school CRT monitors and televisions - cathode ray tubes. And I completely forgot to remove the high pitched whine they produce. Here's why: why they make that noise, and why I didn't notice it.

  • S2017E30 I can't show you how pink this pink is.

    • July 18, 2017
    • YouTube

    I can show a brighter pink. I can show a more saturated pink. But I can't show you this pink. Not quite. More about Stuart Semple and his pigments: https://www.culturehustle.com/ [that's his store, we overloaded Stuart's personal web site, http://www.stuartsemple.com, within a few minutes...!] (I reached out to Anish Kapoor's studio twice for comment; I didn't get any response.)

  • S2017E31 Connectome Scanning: Looking at the Brain's Wiring

    • July 24, 2017
    • YouTube

    There's an MRI scanner in Cardiff that can look at how the brain's wired up: your connectome. It's nowhere close to science fiction singularity brain-uploading, but it might well be part of unlocking new medical treatments in the years to come. Thanks to Prof. Derek Jones, and to all the team at CUBRIC : http://sites.cardiff.ac.uk/cubric/ -- and to the Cardiff University film crew with their gimballed camera!

  • S2017E32 FizzBuzz: One Simple Interview Question

    • July 31, 2017
    • YouTube

    There are a lot of opinions on how to hire coders, and most of them are terrible. The opinions, that is, not the coders. But a basic filter test to make sure someone can do what they say they can: that seems reasonable, and FizzBuzz is one of the more common tests. Even now, interviewers use it. Let's talk about why it's tricky, and how to solve it.

  • S2017E33 What counts as a mountain?

    • August 14, 2017
    • YouTube

    I'm at the top of Mount Evans, more than 14,000 feet - 4.3km - above sea level. This is definitely a mountain: but why doesn't the smaller summit next to it also count? Let's talk about prominence. (Just not for too long, I'm getting low on oxygen.)

  • S2017E34 Colorado has a giant freezer filled with polar ice

    • August 23, 2017
    • YouTube

    Welcome to the US National Ice Core Laboratory in Denver, Colorado, where there's a giant freezer filled with 20km of ice cores from Greenland and the Antarctic. Here's why. Thanks to everyone at the US National Ice Core Laboratory! You can find out more about them here: http://icecores.org/ The Ice Core Laboratory is supported by the National Science Foundation: https://www.nsf.gov/

  • S2017E35 The US government will sell you freeze-dried urine

    • August 28, 2017
    • YouTube

    The National Institute of Standards and Technology, NIST, sells Standard Reference Materials, or SRMs for short. They're analysed, quantified, and certified substances: everything from metals, to elements, to food items... to, yes, freeze-dried urine.

  • S2017E36 A nuclear waste dump you can walk on

    • September 4, 2017
    • YouTube

    In Weldon Spring, Missouri, there is a strange, grey, windblasted seven-storey pile of rocks. It's the Weldon Spring Site: a nuclear and toxic waste dump on the site of an old uranium processing factory. And you can walk on it: it's technically a tourist attraction. That was going to be the whole of my video... and then I did some more research.

  • S2017E37 How Computers Compress Text: Huffman Coding and Huffman Trees

    • September 11, 2017
    • YouTube

    Computers store text (or, at least, English text) as eight bits per character. There are plenty of more efficient ways that could work: so why don't we use them? And how can we fit more text into less space? Let's talk about Huffman coding, Huffman trees, and Will Smith.

  • S2017E38 The "rotary jail" had a slight problem

    • September 18, 2017
    • YouTube

    In Crawfordsville, Indiana, there's a rotary jail: an invention that, with hindsight, should probably never have been built. But it was, here and in other towns across the United States. It might have sounded like a good idea on paper, but in practice, it had a few unfortunate problems... including occasional accidental amputations.

  • S2017E39 The centuries-old debt that's still paying interest

    • September 25, 2017
    • YouTube

    In the archives of Yale University, there's a 367-year-old bond from the water authority of Lekdijk Bovendams, in the Netherlands. And it's still paying interest.

  • S2017E40 Reaction ferries are really clever

    • October 2, 2017
    • YouTube

    On the river Rhine in Switzerland, there are reaction ferries: boats with no engine, no paddles, no onboard motive power at all. Here's how they work -- and a question about what other simple ideas are out there.

  • S2017E41 Why California's musical road sounds terrible

    • October 16, 2017
    • YouTube

    In Lancaster, California, there's a musical road. When you drive over it, it plays the William Tell Overture. Unfortunately, it's out of tune. Here's why.

  • S2017E42 What Is Sea Level, Anyway?

    • October 23, 2017
    • YouTube

    In Calipatria, California, the town is below sea level -- but their flag pole isn't. But what does "sea level" mean? Is it just theory, or is there more behind it?

  • S2017E43 The Story of Salvation Mountain

    • October 30, 2017
    • YouTube

    Near Slab City, California, a man painted a hill. It was outsider art: Leonard Knight had no training and no great masters to imitate. But somehow, he created something that resonates with the world. This is the story of Salvation Mountain. Thanks to Ron and to all the team at the mountain; you can find out more about them here: http://salvationmountain.org/

  • S2017E44 The Lava Lamps That Help Keep The Internet Secure

    • November 6, 2017
    • YouTube

    At the headquarters of Cloudflare, in San Francisco, there's a wall of lava lamps: the Entropy Wall. They're used to generate random numbers and keep a good bit of the internet secure: here's how. Thanks to the team at Cloudflare - this is not a sponsored video, they just had interesting lava lamps! There's a technical rundown of the system on their blog here: https://blog.cloudflare.com/lavarand-...

  • S2017E45 Is it dangerous to talk to a camera while driving?

    • November 13, 2017
    • YouTube

    I'm visiting the University of Iowa's National Advanced Driving Simulator, to answer a question: how unsafe is it for me to vlog while driving? Is vlogging while driving dangerous? The team at the simulator are the experts to ask.

  • S2017E46 The German town that's literally cracking apart

    • November 20, 2017
    • YouTube

    The town of Staufen, in the south-west of Germany, has a problem: a drilling operation in 2007 that went very wrong. Half a metre of movement might not sound like much, but in this town, that's enough for the buildings to crack and fall apart.

  • S2017E47 Hold music used to sound better. Here's why.

    • November 27, 2017
    • YouTube

    It's not your imagination; hold music on phones really did sound better in the old days. Here's why, as we talk about old telephone exchanges and audio compression.

  • S2017E48 Batman's village of fools

    • December 4, 2017
    • YouTube

    There's a link from a 13th century legend, to a 16th century insult book, to a 19th century writer, to a 20th century comic book hero. And it starts in a small village near Nottingham, in the time of Robin Hood. Here's why Batman comes from Gotham City. (I am reliably assured that the modern-people of Gotham are not, in fact, fools.)

  • S2017E49 This is how zero-g flights actually work

    • December 11, 2017
    • YouTube

    The European Space Agency offered me a seat on their zero-g plane: it's an Airbus A310 that flies parabolic maneuvers, pulling up into the sky and then arcing back down, giving its passengers about 20 seconds of weightlessness (or "microgravity") at a time. Here's how it works. Some people would have filmed their script on the ground, and just messed about while floating. I decided to go for something a bit more challenging.

  • S2017E50 The null hypothesis

    • December 18, 2017
    • YouTube

    While I was trying to read a script to a camera in zero-g, the student researchers behind me were trying to prove their own ideas -- or rather, to disprove their "null hypothesis". Let's talk about how science works -- and have a look at one of the teams flying in that plane.

  • S2017E51 This Video Is 2D And 3D Simultaneously: the Pulfrich Effect

    • December 26, 2017
    • YouTube

    Hold on tight, because with a stabilised camera shot and a pair of sunglasses, you're about to see a video that works in both 2D and 3D at the same time. The technique's called the Pulfrich Effect, and this is how it works.

Season 2018

  • S2018E01 17 Tonnes of Spinning Glass: Making the World's Largest Telescope

    • January 1, 2018
    • YouTube

    At the Richard F. Caris Mirror Lab, under the football stadium of the University of Arizona, there's an enormous rotating furnace, keeping tonnes of glass heated as it forms the mirrors for the Giant Magellan Telescope. Here's a look inside!

  • S2018E02 Sign Language Isn't Universal

    • January 8, 2018
    • YouTube

    There isn't one universal sign language for all: even British and American sign languages have very little in common. Here, with full subtitles, is someone actually qualified to explain why!

  • S2018E03 A Language Made Of Music

    • January 15, 2018
    • YouTube

    Solresol is a language, invented out of whole cloth by Jean-François Sudre in the 19th century, that used seven musical notes to create all the words that he thought you'd ever need. It did work: so why aren't we all speaking in notes right now?

  • S2018E04 Canada's Most Successful King

    • January 22, 2018
    • YouTube

    William Lyon Mackenzie King was a sexually repressed, hypocritical, guilt-ridden, prostitute-visiting momma's boy who was exceptionally weird. He was also, perhaps, Canada's greatest prime minister. This week, Evan talks about legacy, and about how you don't need to be a good person to be a good politician.

  • S2018E05 Remote controlling an entire airport

    • January 29, 2018
    • YouTube

    London City Airport's getting a new control tower: but it's just going to be a large mast with 14 high-definition cameras on it. The actual tower will be 80 miles away, in the headquarters of NATS near Swanwick. It feels questionable: but is it?

  • S2018E06 Faceswapping, Unethical Videos, and Future Shock

    • February 5, 2018
    • YouTube

    I was going to tell a science fiction story about faceswapping, and mass blackmail. Then the news broke about unethical faceswapping videos, and software designed and marketed for creating them: and I realised the future had arrived faster than I thought. (This was originally a talk given at An Evening of Unnecessary Detail earlier this week, but I managed to mangle the audio recording settings, so I rerecorded it in a muddy park! It's not the same without the audience, but hopefully it's close enough.)

  • S2018E07 Making artificial earthquakes with a huge steel ball

    • February 12, 2018
    • YouTube

    In Göttingen, Germany, there's a four-tonne steel ball that can be raised up a 14-metre tower -- and then dropped in less than two seconds, crashing back to earth. It makes tiny, artificial earthquakes: here's why.

  • S2018E08 This city centre has no street names

    • February 19, 2018
    • YouTube

    In the Quadratestadt of Mannheim, Germany, the streets aren't named: instead, the blocks are. It's an exception to a rule that most people don't even think about — especially not mapping companies. (Thanks to João Correia for sending me this idea back in 2015!)

  • S2018E09 Launching An Entire Fireworks Display At Once

    • February 26, 2018
    • YouTube

    Human error has launched massive barrages of fireworks at the wrong time before. We're doing it deliberately!

  • S2018E10 The moiré effect lights that guide ships home

    • March 5, 2018
    • YouTube

    I'd never heard of moiré effect beacons until I got an email asking me about them. It seemed like a really clever idea - but it was really hard to research. Or at least it was, until I stumbled upon one magic phrase that revealed its history. It turns out this thing's called an "Inogon leading mark" or "Inogon light" -- Inogon, not Inogen -- and it's a Swedish invention from the 1980s. But there's still a question: why is being used to mark an undersea cable, instead of guiding people home? (Full disclosure: there were some weird strobing effects from the light that only showed up when I got the footage into the edit, so the image you see here has been digitally stabilised so it appears the same way on screen as it does in person!)

  • S2018E11 European clocks ran slow for a bit. British clocks didn't.

    • March 12, 2018
    • YouTube

    Many people sent me this story: it covers my favourite topics of power grids and temporal anomalies. But when the mainstream press have already covered it, how could I add something more? The answer: by adding another pet topic, Unnecessary British Patriotism. And a teasmade.

  • S2018E12 How formation flying works

    • March 14, 2018
    • YouTube

    The Red Arrows are the Royal Air Force's aerobatic display team - the best in the world. They fly Hawk T1 jets, powering through the sky at hundreds of miles per hour, pulling high-G maneuvers with just a few metres between their wingtips. Here's how they do it: and part of it's a skill that you probably already know.

  • S2018E13 There's a mermaid show in Florida

    • March 26, 2018
    • YouTube

    In Weeki Wachee Springs State Park, Florida, there's a mermaid show -- and there has been for 70 years. It's one of the United States' oldest roadside attractions, and it still does three shows a day. At least, provided the local wildlife doesn't get in the way.

  • S2018E14 The US president has a bulletproof railcar

    • April 2, 2018
    • YouTube

    US Car Number 1, the Ferdinand Magellan, sits in the Gold Coast Railway Museum in Miami. It's 120 tonnes of bulletproof, armoured railcar: a train carriage designed to move the President of the United States around the country in safety and style. At least, it was, until other transport came along to do a better job.

  • S2018E15 Making an international standard cup of tea

    • April 9, 2018
    • YouTube

    As far as I can find, no-one has actually made a International Standard Cup of Tea - ISO 3103 or BS 6008 - for the internet before. Lots of people have talked about it, but that's easy. Making one? That requires precision... and some specialist equipment.

  • S2018E16 G-force, jerk, and a giant centrifuge

    • April 16, 2018
    • YouTube

    At the Royal Air Force training centrifuge in Farnborough, pilots learn how to avoid G-LOC: g-induced loss of consciousness. Let's talk about g-force, about jerk, and about how to keep circulation flowing to your brain.

  • S2018E17 We Sent Garlic Bread to the Edge of Space, Then Ate It

    • April 23, 2018
    • YouTube

    The title says it all, really. Thanks to Barry from My Virgin Kitchen - go see him cook and test three different garlic breads here: • 'Out of this world' Garlic bread ft T... - and to Steve from Random Aerospace, http://www.randomengineering.co.uk/Ra... ! Pull down the description for more details. This started as a conversation in a pub a few weeks ago, and turned into one of the more ridiculous videos I've ever done. We send home-made garlic bread skyward on a balloon; exposed it to the stratosphere, 35km up; successfully returned it to earth in a protective box; and then ate it. It tasted... cold.

  • S2018E18 ⚫ How The Black Point Message Crashes Android Apps

    • May 4, 2018
    • YouTube

    "_If you touch the????black point then your whatsapp will hang_", says the message that's being sent around, and it's right. It's a text rendering bug, the same as many others -- which isn't interesting. But the characters it's using, Unicode RTL and LTR marks, are worth knowing about.

  • S2018E19 How planes stay safe over the Atlantic

    • May 14, 2018
    • YouTube

    Over the North Atlantic, there's no radar coverage: so how do air traffic controllers keep planes safe? The answer, at least in part, can be found at Nav Canada's Gander Area Control Centre in Newfoundland. The North Atlantic Tracks are like freeway lanes in the sky, if freeway lanes were stacked a thousand feet on top of each other.

  • S2018E20 A Town Called Asbestos

    • May 21, 2018
    • YouTube

    In Quebec, Canada, there's a town called Asbestos. It's an alarming name, one that conjures up images of lung disease and mesothelioma. So why haven't they changed it? [Update, October 2020: they've changed it! It's now Val-Des-Sources. https://www.npr.org/2020/10/20/925820... ] Dr Jessica van Horssen's book, "A Town Called Asbestos", was invaluable for my research. Its ISBN is 9780774828420, and it can be ordered from most libraries and bookstores.

  • S2018E21 The US-Canada border splits this road down the middle

    • May 28, 2018
    • YouTube

    Rue Canusa (or Canusa Avenue) is a street that's split in two by a border: the northern part is in Stanstead, Canada, and the southern part is in Derby Line, USA — and border crossings here aren't as easy as they used to be.

  • S2018E22 The town that was burned for science

    • June 4, 2018
    • YouTube

    The St Lawrence Burns were a series of deliberate fires in the soon-to-be-demolished village of Aultsville, Ontario, which was due to be flooded to make way for the St Lawrence Seaway. The results changed the way buildings are constructed around the world, and saved lives.

  • S2018E23 The giant freezer that tests winter boots

    • June 11, 2018
    • YouTube

    If you're in Canada, you need good winter boots. But how do you know whether they're actually safe, or whether you'll fall over the first time you step on ice? This is WinterLab, part of the Challenging Environment Assessment Laboratories at the Toronto Rehabilitation Institute, where they're testing winter shoes with science.

  • S2018E24 Making 200,000 tons of arsenic dust safe

    • June 18, 2018
    • YouTube

    Giant Mine sits near Yellowknife, in the Northwest Territories of Canada. Once it was a productive gold mine, but after the gold ran out, the mining company went bankrupt and left the government to clean up the mess: enough arsenic trioxide dust to kill everyone on Earth. The solution: freezing it, at least for now.

  • S2018E25 The new highway to the Arctic Ocean

    • June 25, 2018
    • YouTube

    Until recently, Canada didn't have a road link to the Arctic Ocean. But last year, the all-weather Inuvik-Tuktoyaktuk Highway opened, which meant that finally the country was connected "from sea to sea to sea". I set out to drive it, but it didn't quite go how I planned.

  • S2018E26 Watching for nuclear attack in the Arctic

    • July 2, 2018
    • YouTube

    In the far north of Canada sit the DEW Line stations: "Distant Early Warning". Built in the 1950s, these were the sites that would have sounded the alarm if the Soviet Union ever attacked North America. Or at least, they were until they went obsolete just a few years later.

  • S2018E27 The sourtoe cocktail has a human toe in it

    • July 9, 2018
    • YouTube

    In Dawson City, a small mining town in the Yukon, sits the Downtown Hotel. Inside there is a tradition that tourists have been trying out for decades: the Sourtoe Cocktail.

  • S2018E28 We Should Let Some Wildfires Burn

    • July 16, 2018
    • YouTube

    In the last few years, wildfires have been getting worse - and, oddly, it's because humans have been preventing them. From a helicopter above the forests of British Columbia, and from the Tree Ring Lab at UBC, let's talk about how we should just let some wildfires burn.

  • S2018E29 Stories I Can't Tell

    • July 19, 2018
    • YouTube

    There are some stories in Canada that I'm not qualified to tell. Pull down the description to find out about them.

  • S2018E30 How the 90s VHS look works

    • July 23, 2018
    • YouTube

    90s VHS video filters are in fashion right now, and most producers are using the same filter as everyone else. Why does the filter look like it does? To answer that question, I went to talk to the person that wrote it!

  • S2018E31 This nuclear reactor is run by students

    • July 30, 2018
    • YouTube

    At Reed College in Portland, Oregon, there's a TRIGA nuclear reactor, used for research. You can stand next to it and watch the blue glow from the bottom of a deep swimming pool. I had to visit.

  • S2018E32 Testing the sound mirrors that protected Britain

    • August 6, 2018
    • YouTube

    Over on the RAF Starrship channel, I'm talking about the history of radar: • A Brief History of Radar with Tom Sco... - but over here, we're testing a 90-year-old piece of technology that was meant to be part of Britain's air defence. The Sound Mirrors, on Romney Marsh, were built in the late 1920s as a way to amplify the sound from aircraft engines over the English Channel. We're flying a bit closer than that, with a drone.

  • S2018E33 I hit 3,000-year-old art with a hammer

    • August 13, 2018
    • YouTube

    The White Horse, in Uffington, is one of the oldest surviving works of art in Britain: carved into a hillside in Oxfordshire 3,000 years ago. Every year, it's rechalked by volunteers co-ordinated through the National Trust, a line of maintenance going back to before England had written history.

  • S2018E34 Your private messages travel under this beach

    • August 20, 2018
    • YouTube

    In Porthcurno, Cornwall, there's an old telegraph cable landing station. It's how Britain talked to the Empire -- and it's now a museum. But the technology here isn't quite as obsolete as you might think.

  • S2018E35 That Time I Got In Trouble With The Government

    • August 27, 2018
    • YouTube

    The first part of "How To Be Popular On The Internet*" is all about an old saying: if at first you don't succeed, try, try again. And if you do succeed... well, you're still going to need to do that.

  • S2018E36 The Quiz That Was Shared A Million Times

    • August 29, 2018
    • YouTube

    I've put the North-o-Meter, and some other old UsVsTh3m games, up at https://www.tomscott.com/usvsth3m/ - I've disabled the sharing buttons, though. No-one needs them to go viral again. In the middle part of "How To Be Popular On The Internet*", it's time to talk about giving the people what they want, about getting noticed, and about the north-south divide.

  • S2018E37 Why You Don't Want To Go Viral

    • August 31, 2018
    • YouTube

    On a rainy Scottish island called Jura, it's time to talk about the Manual, about long-term sustainable success, and about not having just that one catchphrase. The term "viral" has fallen out of fashion in the last few years, which is why this series wasn't called "going viral". And in truth, that's not what you want to do. Post Audio by Emi Paternostro, http://proximitysound.com Jimmy Cauty and Bill Drummond were better known as the KLF (or the Timelords, or the JAMs, or...). Their Manual is out of print, but I'm sure that won't stop enterprising people from tracking down versions of it, or footage of their burn. The music for this series has been an instrumental version of "Game of Taking Chances" by Johannes Hager feat. Josefin Backrud, from Epidemic Sound

  • S2018E38 The collapsible crash-test robot car

    • September 10, 2018
    • YouTube

    The Global Vehicle Target is the new standard for testing autonomous driving and crash test systems. To cameras and radar, it looks like a car: but if you hit it, it'll fly apart. So if your emergency braking doesn't quite work... well, this is what happens.

  • S2018E39 We Made a Banhammer (feat. NerdCubed)

    • September 17, 2018
    • YouTube

    For years, moderators of online forums and chat rooms have wielded a metaphorical "banhammer" to deal with anyone who steps out of line. Now it's real. Well, a bit more real, anyway.

  • S2018E40 Wingwalking used to be a lot more dangerous

    • September 24, 2018
    • YouTube

    Back in the 1920s, wingwalking claimed lives. Daredevils would move around on the top of a plane's wings, in mid-flight, often without any harness or any safety line. Maybe they'd be able to clip onto something during takeoff and landing, but maybe not. There are still a few of those true daredevil wingwalkers out there in the world, but in the 21st century... it's usually a bit different.

  • S2018E41 How the first ever telecoms scam worked

    • October 1, 2018
    • YouTube

    In the 1830s, two French brothers, François and Joseph Blanc, pulled off the first telecoms scam in history. The optical telegraph, a line of semaphore towers stretching from hilltop to hilltop, was for government use only: but something as simple as the law wasn't going to get in their way.

  • S2018E42 What's The Longest Word You Can Write With Seven-Segment Displays?

    • October 8, 2018
    • YouTube

    That's right, we're kicking Season 2 of the Basics off with a technical episode about a somewhat-obsolete technology! IT'S PARTY TIME. Wait, no, not party time. IT'S CODE TIME. Close enough. Let's talk about seven-segment displays, and about the longest word you can write with them.

  • S2018E43 If Educational Videos Were Filmed Like Music Videos

    • October 15, 2018
    • YouTube

    There's a reason music videos look strange. I could just talk about framerate, cuts and continuity... or I could get an actual music video director. And a leaf blower.

  • S2018E44 ᚛ᚈᚑᚋ ᚄᚉᚑᚈᚈ᚜ and ᚛ᚑᚌᚐᚋ᚜

    • October 22, 2018
    • YouTube

    Ogham is an old Irish script made by carving notches into stones. It fell out of use more than a millennium ago - but it's an interesting exception to a linguistics and computer-science rule that I'd never even realised existed. Let's talk about the Ogham Space Mark.

  • S2018E45 Why do London's manholes keep exploding?

    • October 29, 2018
    • YouTube

    Every month or so, somewhere in London, a manhole explodes. It's so common that it doesn't make the news unless it's spectacular or someone gets injured. Here's why, complete with gratuitous pyrotechnics.

  • S2018E46 Britain's largest battery is actually a lake

    • November 5, 2018
    • YouTube

    Dinorwig Power Station, otherwise known as Electric Mountain, is a pumped-storage hydro station in Llanberis, Wales. And yes: it's Britain's largest battery. Here's how it works, and why some of the things you think you know about TV pickups might not be so true any more.

  • S2018E47 Why Computers Can't Count Sometimes

    • November 12, 2018
    • YouTube

    Sometimes, numbers on sites like YouTube and Twitter jump up and down; subscriber counts lag, like-counts bounce all over the place. Why is it so hard for computers to count? To answer that, we need to talk about threading, eventual consistency, and caching. Thanks to my proofreading team, and to Tomek on camera!

  • S2018E48 Testing the world's longest echo

    • November 19, 2018
    • YouTube

    Technically, the Inchindown oil tanks in Invergordon, Scotland, have the world's longest reverberation, but that makes a much worse title. We tested them with a loud noise and some very sensitive microphones.

  • S2018E49 An American Stonehenge: The Mysterious Georgia Guidestones

    • November 26, 2018
    • YouTube

    [See pinned comment for an important update.] In a field near Elberton, Georgia, USA, sit a set of mysterious standing stones: mysterious not because they're ancient, but because they were funded by someone anonymous in 1980, perhaps as a message to any survivors of the end of the world.

  • S2018E50 The other tree that owns itself

    • December 3, 2018
    • YouTube

    The Tree That Owns Itself in Athens, Georgia is well known. The other Tree That Owns Itself in Eufaula, Alabama, really isn't. It's the same story in a different place. Why?

  • S2018E51 The Artificial Intelligence That Deleted A Century

    • December 6, 2018
    • YouTube

    In the last week of December, 2028, humanity forgot about more than a century of pop culture. You've probably never thought about it, and never found it strange — but the reason is an artificial intelligence called Earworm.

  • S2018E52 The city of golf carts

    • December 10, 2018
    • YouTube

    Some American cities use buses, or trams, or trains. Peachtree City, Georgia, has a different solution: it's not quite public transit, but a hundred miles of golf cart tracks helps to keep cars off the road.

  • S2018E53 Your New Social Credit Score

    • December 13, 2018
    • YouTube

    From January, every citizen of England and Wales will have a new social credit score. Advice from the Department for Community and Culture. [This video is fiction. See the pinned comment.]

  • S2018E54 The Consequences of Your Code

    • December 17, 2018
    • YouTube

    This is the story of one of the best, and also one of the worst, text messages I've ever received. It's about harm, about consequences, and about the responsibilities that designers, coders and hackers have to make sure we treat other people with care.

  • S2018E55 Stealing Our Friend's Brain Backup PRANK (GONE WRONG!!!) ????????????

    • December 20, 2018
    • YouTube

    WASSUP KINGDOM, it is time to GET JACK BACK for last week. Callum has Jack's backup and it's time for some FUN

  • S2018E56 The canyon that humans made by accident

    • December 24, 2018
    • YouTube

    The tourist guides promote it as Georgia's Little Grand Canyon: but this is a scar on the Earth, caused by humans either not understanding or not caring about geology. Is it natural? Or man-made? Or both?

  • S2018E57 Why NASA Spun Astronauts Around, But Doesn't Any More

    • December 31, 2018
    • YouTube

    The Multi Axis Trainer, or MAT, is an icon of space exploration and astronaut training. But other than spinning round kids at Space Camp: what's it actually used for?

Season 2019

  • S2019E01 The Fishermen That Hold Their Breath For 10 Minutes

    • January 7, 2019
    • YouTube

    The Bajau people of Borneo can hold their breath longer than almost anyone else on the planet. How? Why? And how can the rest of us learn to hold our breath for longer? Rohin from Medlife Crisis explains.

  • S2019E02 How Knot To Hang A Painting

    • January 14, 2019
    • YouTube

    You've got a painting and two nails. Can you use both nails to hang the painting so that if either nail is removed, the painting falls? That's the puzzle: in this week's guest video, Jade's going to solve it with maths.

  • S2019E03 This Is Your Brain On Stale Air

    • January 21, 2019
    • YouTube

    Inside his homemade, hermetically-sealed, airtight biodome, Kurtis Baute is already out of breath and surrounded by more carbon dioxide than he should be. And that's going to affect a lot of things -- including how smart he is.

  • S2019E04 I Got To See And Hold My Brain

    • January 28, 2019
    • YouTube

    We're all used to seeing MRI scans of brains. But how do they work? Can you really "see" brain activity, or read someone's mind? Alie and Micah from Neuro Transmissions went to get scanned -- and ended up having some fun with 3D printing, too.

  • S2019E05 How to slow down a stock exchange

    • February 4, 2019
    • YouTube

    High-frequency traders have a few tactics on stock exchanges: but simply put, they gather price information faster than anyone else, sometimes even faster than the markets themselves, and use that to make a tiny profit many, many, many times. There are all sorts of solutions: but it turns out there's a simpler one that involves physics.

  • S2019E06 How Auto-Tune Works

    • February 11, 2019
    • YouTube

    Pitch correction: it can make terrible singers sound decent, brilliant singer sound mediocre, or Cher sound like a robot. But how does it work? And is it possible to explain that without actually trying to understand Fourier transforms?

  • S2019E07 Why Denmark used to be .04 seconds behind the world

    • February 18, 2019
    • YouTube

    Measuring time is a complicated thing. Computers, banks, and stock markets in Denmark all use UTC, the international standard: but according to the law, they shouldn't. UPDATE, March 2023: The law has now been changed! https://www.ft.dk/samling/20222/lovforslag/l19/20222_l19_som_vedtaget.htm

  • S2019E08 A Questionable Experiment in Motion Sickness

    • February 25, 2019
    • YouTube

    We built a car that you drive with real-life video game lag, and used it for an ill-advised, mostly-unscientific experiment about motion sickness. In case it wasn't obvious: we did this in a private area away from public roads and other traffic, and I insisted on more safety checks than William and Michael would normally have. Don't try this unless you're doing the same!

  • S2019E09 Weight For It (with Evan Edinger and Luke Cutforth)

    • February 28, 2019
    • YouTube

    Welcome to the Game Garage! A series of three new, experimental quizzes and games. Thanks today to Evan Edinger - / naveregnide - and Luke Cutforth - / lukecutforth - for being the guinea pigs for Game 1: Weight For It. Sure, we could have spent a fortune on a massive studio, huge props and a giant seesaw: or we could get a garage, some GoPros, and some boxes of sand.

  • S2019E10 The broken building that must not be destroyed

    • March 4, 2019
    • YouTube

    St Peter's Seminary sits in woodland about an hour west of Glasgow, near a village called Cardross. If you like Brutalist architecture, then it's a beautiful ruin: if not, then perhaps your view isn't so kind. It's a historic, religious building: but it's also a money sink that can't be demolished.

  • S2019E11 Above Average (with too many people to fit in this title)

    • March 7, 2019
    • YouTube

    Today in the Game Garage, it's not about what you know: it's about what you can do. Pull down the description for the full cast and links to everyone's channels!

  • S2019E12 The Last Play-For-Cash Fascination Parlor

    • March 11, 2019
    • YouTube

    UPDATE: In 2019, the Fascination Parlor was hit by storms, and the building didn't survive. The games have been stored, and hopefully it'll reopen somewhere at some point! • On Nantasket Beach in the seaside town of Hull, Massachusetts, sits the last play-for-cash Fascination Parlor in the world. It's a century-old arcade game, made of relays that click and buzz. There are a few other parlors left in the world: but this is the only one where you're playing for actual money.

  • S2019E13 Keep It or Dump It (with Matthew, who is lovely but not internet famous)

    • March 14, 2019
    • YouTube

    The final episode in this run of the Game Garage gives us a Proper Quiz: complete with all-or-nothing questions and a prize of FIVE THOUSAND PENCE. That's pence. It's £50. We didn't have that big a budget.

  • S2019E14 The library of rare colors

    • March 18, 2019
    • YouTube

    The Forbes Pigment Collection at the Harvard Art Museums is a collection of pigments, binders, and other art materials for researchers to use as standards: so they can tell originals from restorations from forgeries. It's not open to the public, because it's a working research library -- and because some of the pigments in there are rare, historic, or really shouldn't be handled by anyone untrained.

  • S2019E15 Blindfold balancing in the spinning space chair

    • March 25, 2019
    • YouTube

    The Multi-Axes Rotation and Tilt Device (MART) is used for spatial orientation experiments: it's a chair balanced on a metaphorical knife-edge, powered by precise and fast motors. And my job was to not fall over.

  • S2019E16 The artificial gravity lab

    • April 2, 2019
    • YouTube

    In the Ashton Graybiel Spatial Orientation Laboratory at Brandeis University, there's the Artificial Gravity Facility: otherwise known as the rotating room. No-one's invented futuristic gravity plating yet, but if you want to test how humans would cope with artificial gravity, this is the best way.

  • S2019E17 I Drove My Childhood Favorite Racing Game In Real Life

    • April 8, 2019
    • YouTube

    When I was a kid, I played the demo version of Need for Speed II a lot. Just the demo: it came free on a CD with a monthly computer magazine. Every detail of that one demo track was stored in my head, long-dormant... until I ended up in Vancouver, and memories started surfacing in very odd ways.

  • S2019E18 Where two oceans meet, debunked

    • April 15, 2019
    • YouTube

    Cape Reinga, at the very northern tip of New Zealand, is known for being where the Tasman Sea meets the Pacific Ocean, where two oceans collide. The truth, though, is a little more complicated than that.

  • S2019E19 The sculpture that looks like a real-life cartoon

    • April 22, 2019
    • YouTube

    Gibbs Farm, in New Zealand, is an enormous private sculpture collection. Its most famous piece is Horizons, by Neil Dawson - and it looks like a cartoon tissue somehow painted onto the landscape. To see it in person, though, will take a bit of effort.

  • S2019E20 The Hundred-Tonne Robots That Help Keep New Zealand Running

    • April 29, 2019
    • YouTube

    The Ports of Auckland are automating their straddle carriers, which might not seem like much: until you phrase it as "hundred-tonne autonomous robots guided by nanosecond-precision tracking".

  • S2019E21 The brain-eating amoebas of Kerosene Creek

    • May 6, 2019
    • YouTube

    Kerosene Creek is a natural hot spring near Rotorua, on the North Island of New Zealand. And there have been official warnings for years: don't put your head under water. It turns out that "brain-eating amoebas", naegleria fowleri, are a real, if rare, thing.

  • S2019E22 The first 3D color X-rays

    • May 13, 2019
    • YouTube

    At the University of Canterbury, in Christchurch, New Zealand, the team at Mars Bioimaging are using detector equipment originally developed for the Large Hadron Collider, and putting it to a very different use: medical imaging that allows 3D, false-color images inside the human body.

  • S2019E23 The circle visible from space

    • May 20, 2019
    • YouTube

    Mount Taranaki, on the North Island of New Zealand, is a large-scale circle that's visible from space: a stratovolcano with six miles of forest around it. But that didn't happen naturally. Oh, and there's a good chance that, in the next fifty years or so, it might explode.

  • S2019E24 Testing a zip line that goes round corners

    • May 27, 2019
    • YouTube

    If you invent a new theme park or amusement ride, how do you test it to make sure it's safe? There's no Federal Bureau of Zip Lines. I visited one of the companies that does just that sort of testing - and, now, inventing.

  • S2019E25 What counts as the world's steepest street?

    • June 3, 2019
    • YouTube

    Baldwin Street in Dunedin, New Zealand, has the Guinness World Record for "steepest paved road over a continuous distance of more than ten metres". Which is enough to bring in quite a few tourists. What's the history? And what counts as "steepest street"?

  • S2019E26 The one-lane bridge shared by cars and trains

    • June 10, 2019
    • YouTube

    Near Hindon, on the South Island of New Zealand, there's one of only two remaining one-lane road-rail bridges in the country. No barriers, no lights, no sirens: if you're driving across this, you need to make sure to listen out for the train horn.

  • S2019E27 Mr Olds' remarkable elevator

    • June 17, 2019
    • YouTube

    Olds Engineering, a traditional workshop and foundry, sits in Maryborough, Australia. It's not the sort of place you'd expect to find a new industrial invention in the 21st century: and yet the Olds Elevator, patented by Peter Olds, is just that.

  • S2019E28 The world's first solar powered train

    • June 24, 2019
    • YouTube

    The Byron Bay Railroad Company runs the world's first 100% solar-powered train. It wouldn't work everywhere - but in the bright sunshine of Australia, it might just be the right tool for the job.

  • S2019E29 Why You Can't Trust Me

    • July 1, 2019
    • YouTube

    I went to a place called Coober Pedy to tell a story about water.

  • S2019E30 These tunnels stop part of Tokyo flooding

    • July 8, 2019
    • YouTube

    If you believe the hype, then the Metropolitan Area Underground Discharge Channel stops Tokyo flooding. It doesn't. But it is one colossal part of a huge network of flood defences that protect a city that would otherwise be... well, very wet.

  • S2019E31 How To Build An App: Everything You Didn't Know You Needed To Know

    • July 9, 2019
    • YouTube

    This isn't going to be a click-a-button and follow-along series that gives you the same result as everything else. We're not even going to talk about code. This is everything you didn't know you needed to know about building an app.

  • S2019E32 why typing like this is sometimes okay.

    • July 15, 2019
    • YouTube

    Language changes over time, and that's fine. Time for a dose of descriptivism, as the Language Files return. Pull down the description for the references!

  • S2019E33 How to stop a colossal bridge corroding

    • July 22, 2019
    • YouTube

    A decade ago, engineers found the Humber Bridge had the same problem as many of the world's suspension bridges: unexpectedly fast corrosion. Here's how they fixed it, and how they're checking that it's staying fixed. Thanks to all the team at the Humber Bridge board, at Cleveland Bridge, and Visit Hull and East Yorkshire, all of whom spent a lot of time and effort getting me up to the towers!

  • S2019E34 The Fetch-Execute Cycle: What's Your Computer Actually Doing?

    • July 29, 2019
    • YouTube

    The fetch-execute cycle is the basis of everything your computer or phone does. This is literally The Basics.

  • S2019E35 Why “No Problem” Can Seem Rude: Phatic Expressions

    • August 5, 2019
    • YouTube

    "Hello!" "Thank you!" "You're welcome!" These are all phatic expressions, and people can argue about them.

  • S2019E36 The Two Generals’ Problem

    • August 12, 2019
    • YouTube

    Time to tell a story about idempotency, computer science, and the Night of the Multiple Orders.

  • S2019E37 Flying a plane with fireworks on the wings

    • August 19, 2019
    • YouTube

    Aerosparx are a British aerobatics team that perform displays with fireworks attached to their wings. This is how they do it.

  • S2019E38 Personal Best (with dodie, Sammy Paul, Daniel J Layton and Reb Day)

    • August 22, 2019
    • YouTube

    We're back! New games, same garage.

  • S2019E39 I'm Not A Robot ✅

    • August 26, 2019
    • YouTube

    What those boxes are for, and why you might not have to click them soon.

  • S2019E40 Checkpoint (with Ashens and the Polybius Heist crew)

    • August 29, 2019
    • YouTube

    This game turned out a lot more stressful than we thought it would.

  • S2019E41 The Language Sounds That Could Exist, But Don't

    • September 2, 2019
    • YouTube

    The International Phonetic Alphabet: one sound for each symbol, and one symbol for each sound. Except for the sounds we can't make.

  • S2019E42 Cash and Grab (with Bird Keeper Toby and Inés from Draw Curiosity)

    • September 5, 2019
    • YouTube

    I'll say this about this week's Game Garage: we definitely had fun.

  • S2019E43 The only bit of Louisiana's coast that isn't sinking

    • September 9, 2019
    • YouTube

    On a coastline that's steadily sinking under the waves, the Wax Lake Delta is rising: which is a wonderful thing for researchers.Historically, every time humans try and mess with the Mississippi, there have been unintended consequences: and even though we can now model it fairly well, there are still surprises.

  • S2019E44 The toxic pit with a $3 admission fee

    • September 16, 2019
    • YouTube

    The Berkeley Pit, in Butte, Montana, was once the richest hill on Earth: the Anaconda Copper Mine. Now: it's not all that rich, and it's not much of a hill. Instead, it's a toxic pit filled with sulfuric acid.

  • S2019E45 What counts as the world's shortest river?

    • September 23, 2019
    • YouTube

    If you've been a subscriber for a while, you probably know where this one is going. Although you may still be surprised about where I ended up going... Montana's Giant Springs State Park, and Lake Sumiainen in Finland, have very short rivers. Finding the shortest in the world, though: that could be trickier.

  • S2019E46 These tunnels are designed for 100,000 years

    • September 30, 2019
    • YouTube

    Onkalo, on the Finnish island of Olkiluoto, is planned to be the first geologic storage facility for high-level nuclear waste: eventually sealed for 100,000 years. I got to see inside.

  • S2019E47 The Self-Driving Race Car

    • October 7, 2019
    • YouTube

    I got an email asking if I wanted to be driven around the most famous racetrack in Britain by an autonomous racing car. I wasn't going to refuse that offer.

  • S2019E48 Why Helsinki's library robots aren't important

    • October 14, 2019
    • YouTube

    Oodi, the new Helsinki Library, has robots to help reshelve books. They get a lot of press attention. But they're not the important part of the library: here's why.

  • S2019E49 The giant art that keeps planes quiet

    • October 21, 2019
    • YouTube

    Next to Amsterdam Schiphol Airport is the Buitenschot Land Art Park, a giant set of ridges and furrows cut into the landscape. Yes, it's art: but it also stops some local residents from being exposed to jet noise.

  • S2019E50 This Video Is Sponsored By ███ VPN

    • October 28, 2019
    • YouTube

    I tried to write a more honest VPN commercial. The sponsor wasn't happy about it. • Get ██ days of ███ VPN free at ██████.com/honest

  • S2019E51 How the Netherlands simulated the sea

    • November 4, 2019
    • YouTube

    "Build some models" seems obvious: but this is a story of ingenuity, of using natural resources well, and of a country that humans dragged from the sea.

  • S2019E52 The world's only wingsuit tunnel

    • November 11, 2019
    • YouTube

    In Stockholm, there's a diagonal wind tunnel, used for one very specific purpose: learning to fly a wingsuit. I tried. I almost managed it.

  • S2019E53 The elevator shaft was invented before the elevator

    • November 18, 2019
    • YouTube

    It sounds ridiculous, but it's true. At the Cooper Union Foundation Building in New York, there's the world's first elevator shaft: constructed four years before the safety elevator was invented. • Thanks to Prof. O'Donnell and all the team at the Cooper Union for the Advancement of Science and Art.

  • S2019E54 I visited the US National Helium Reserve

    • November 25, 2019
    • YouTube

    At the National Helium Reserve in Amarillo, Texas, the US government once stored 32 billion cubic feet of helium. There have been breathless news articles recently saying the world's running out: but it's still possible to buy party balloons. What's going on?

  • S2019E55 Can The Words You Read Change Your Behavior?

    • December 2, 2019
    • YouTube

    "Priming" is the idea that the words you read can change the way you act. And yes, there are papers that show an effect: but we also need to talk about the Replication Crisis.

  • S2019E56 Why Electronic Voting Is Still A Bad Idea

    • December 9, 2019
    • YouTube

    We still shouldn't be using electronic voting. Here's why.

  • S2019E57 The world's littlest skyscraper was a massive scam

    • December 16, 2019
    • YouTube

    In Wichita Falls, Texas, the Newby-McMahon Building stands 480 inches tall. Not 480 feet: 480 inches. There's a story of a smooth-talking scammer that sounds almost too good to be true. But is it?

  • S2019E58 Why Do We Move Our Hands When We Talk?

    • December 23, 2019
    • YouTube

    Gestures are a really important part of language. But how do we use them, and why?

  • S2019E59 Why 2020 Started On December 30th

    • December 30, 2019
    • YouTube

    Weird calendar edge-cases and computer bugs. It's an old-school video. • The Fasthosts Techie Test competition is now closed!

Season 2020

  • S2020E01 Why My Teenage Code Was Terrible: Sorting Algorithms and Big O Notation

    • January 6, 2020
    • YouTube

    When I was a teenager, I wrote some terrible code. Here's why.

  • S2020E02 How Neurosurgeons Navigate Inside The Brain

    • January 13, 2020
    • YouTube

    The brain is a mass of neurons, but some areas are more important than others. How can surgeons navigate inside the brain? How do they know exactly where to operate, and what to do? Alex from Brainbook explains.

  • S2020E03 How To Grow A Martian Salad On Earth

    • January 20, 2020
    • YouTube

    "12kg of Martian soil simulant" is a pretty good guest video pitch. This week, Tom from Aspect Science tries to grow a salad in Martian soil.

  • S2020E04 The bridge that's in two countries at the same time

    • January 27, 2020
    • YouTube

    Schengen is a small town in Luxembourg, on the borders with France and Germany. But one of those borders is a little more complicated: the Mosel (or Moselle) river is a condominium, it belongs to both countries at the same time. And thus, so the bridges above it.

  • S2020E05 Why TRUE + TRUE = 2: Data Types

    • February 3, 2020
    • YouTube

    INT, BOOLEAN, STRING and FLOAT: these are the things that data is made of.

  • S2020E06 The Dutch headwind cycling championships are amazing

    • February 10, 2020
    • YouTube

    About once a year, on the Oosterscheldekering barrier in the south of the Netherlands, there is NK Tegenwindfietsen: a bicycle race cycling into a headwind. This year it was 120km/h: this is why it's so difficult, and also why it's so brilliant.

  • S2020E07 The Sentences Computers Can't Understand, But Humans Can

    • February 17, 2020
    • YouTube

    The Winograd schema is a language test for intelligent computers. So far, they're not doing well.

  • S2020E08 The country where all public transit is free

    • February 24, 2020
    • YouTube

    From March 1st 2020, Luxembourg will have free public transit throughout the country: you'll be able to travel on buses, trains, trams, and that one funicular railway without a ticket. It sounds like a good idea: but is it?

  • S2020E09 Stopping A Laser Beam In Mid-Air

    • March 2, 2020
    • YouTube

    Lasers travel at the speed of light. You can't stop one in mid-air like Kylo Ren. Except: we just did. Here's how.

  • S2020E10 Why you can't buy Dasani water in Britain

    • March 9, 2020
    • YouTube

    Coca-Cola's brand of bottled water, Dasani, was a flop in the UK after the public realised it was just filtered tap water. But the story's a bit more complicated than it might seem.

  • S2020E11 This billion-euro nuclear reactor was never switched on

    • March 16, 2020
    • YouTube

    Zwentendorf Nuclear Power Plant, in Austria, was ready to go: it just needed starting up. But that never happened, and forty years later, it still sits mothballed. Here's why.

  • S2020E12 YouTube's copyright system isn't broken. The world's is.

    • March 23, 2020
    • YouTube

    No copyright infringement intended.

  • S2020E13 Why dark video is a terrible mess

    • March 30, 2020
    • YouTube

    Dark scenes in television, YouTube, and streaming platforms all look pixelated and blocky. Here's why.

  • S2020E14 This Video Has 72,234,419+ Views

    • April 6, 2020
    • YouTube

    The title of this video should change with the times. But nothing lasts forever: here's the story of how I made it work, why it used to be easier to make that work, and how it all ties in to the White Cliffs of Dover and the end of the universe.

  • S2020E15 Abso-b████y-lutely: Expletive Infixation

    • April 13, 2020
    • YouTube

    There are rules in the English language that you've probably never been taught, but you know anyway: how to split apart words with "infixes". But you've never been taught it because some of those infixes are words you probably shouldn't use in front of your high school English teachers...

  • S2020E16 Why You Can't Name A File CON In Windows

    • April 20, 2020
    • YouTube

    The short answer is "backwards compatibility". The long answer is... well, it's the rest of this video.

  • S2020E17 Why this British crossroads was so dangerous

    • April 27, 2020
    • YouTube

    UPDATE: The crossroads has now been fixed! Ipley Cross, in the middle of the New Forest, is one of the most dangerous road junctions in Britain. Why?

  • S2020E18 The Hidden Rules of Conversation

    • May 4, 2020
    • YouTube

    Gricean Maxims are a vital part of how we understand each other: a set of... well, maybe "rules" is a bit strong. They're guidelines that we follow without realising it. And it's the reason that "asbestos-free cereal" sounds suspicious.

  • S2020E19 Are There Problems That Computers Can't Solve?

    • May 11, 2020
    • YouTube

    All about Hilbert's Decision Problem, Turing's solution, and a machine that vanishes in a puff of logic.

  • S2020E20 Why some "remastered" music videos look awful

    • May 18, 2020
    • YouTube

    This isn't "the way they were meant to be seen".

  • S2020E21 Ə: The Most Common Vowel in English

    • May 25, 2020
    • YouTube

    "Schwa" is the most common vowel in English. Every English speaker uses it, all the time, but most people have never heard of it.

  • S2020E22 The Worst Typo I Ever Made

    • June 1, 2020
    • YouTube

    When 'undo' won't do.

  • S2020E23 How England's Oldest Road Was Nearly Lost Forever

    • June 8, 2020
    • YouTube

    [UPDATE: This video has an important update! As of February 2022, the deadline for paths has been cancelled. The mapping still continues, and there's still a plan to have a definitive map, but old rights of way will no longer be wiped The Icknield Way, in south-east England, is a road and footpath that's been part of the landscape for millennia. But if parts of it hadn't been legally marked down, then those parts would have become private land, gone forever. Who has the right to walk where?

  • S2020E24 The "first internet bench" probably wasn't

    • June 15, 2020
    • YouTube

    In the Abbey Gardens of Bury St Edmunds, in a quiet corner of a park, sits the World's First Internet Bench. Well, sort of. It's been nearly twenty years, and it's arguable whether it ever did the job in the first place...

  • S2020E25 I Asked 64,182 People About “Jingle Bells, Batman Smells”. Here's What I Found Out.

    • June 22, 2020
    • YouTube

    Thanks to Jack from Jacksfilms on piano: / jacksfilms • And thanks to everyone who answered! Sources and a data download are in the description.

  • S2020E26 Why You Can Spot Bad Green Screen

    • June 29, 2020
    • YouTube

    Green screen looks terrible sometimes. Here's why.

  • S2020E27 The Abandoned Hill With Two Members Of Parliament

    • July 6, 2020
    • YouTube

    Old Sarum, in Wiltshire, is a now-desolate hillfort run by English Heritage. But it was once one of the most important sites in southern England: so important that it had two members of Parliament. Then, it became a "rotten borough": and a warning about power.

  • S2020E28 A Million Dollars vs A Billion Dollars, Visualized: A Road Trip

    • July 13, 2020
    • YouTube

    There are lots of ways to compare a million to a billion, but most of them use volume. And I think that's a mistake, because volume just isn't something the human brain is great at. So instead, here's the difference between a million and a billion, in a more one-dimensional way: distance.

  • S2020E29 The Village That The Luftwaffe Bombed By Mistake

    • July 20, 2020
    • YouTube

    Linby is a small village in Nottinghamshire, England. It wouldn't have much strategic value... unless some commander didn't read their map properly. Here's a local legend, with a few questions about it.

  • S2020E30 Britain once forgot how long an inch is

    • July 27, 2020
    • YouTube

    In 1834, Parliament burned down, and the Standards of Measurement were melted or destroyed. So when there's no agreed-upon standard for length: how do you fix it? Also: how you can still publicly check the length of your sandwich.

  • S2020E31 Why You Should Turn On Two Factor Authentication

    • August 3, 2020
    • YouTube

    The short answer is: "because it'll make things more secure". The long answer involves Ronald Reagan.

  • S2020E32 The Part Of Britain That Rises And Falls Twice A Day

    • August 10, 2020
    • YouTube

    Cornwall rises and falls by a few centimetres, twice a day. I didn't believe that when I read it. In this video: "ocean tide loading": why, how, and does it actually matter?

  • S2020E33 DISCONNECTED with Jaiden Animations, Ellen Rose and Hank Green

    • August 13, 2020
    • YouTube

    I invited Jaiden, Ellen and Hank to play a trivia quiz! The sort of quiz where you can get away with wrong answers... if nobody spots them. And since they couldn't be there in person, I've got a massive virtual set. Too many wrong answers, and our players will be Disconnected.

  • S2020E34 Is the most northern part of Iceland still there?

    • August 17, 2020
    • YouTube

    Kolbeinsey is the most northern part of Iceland, a tiny island that, according to Wikipedia, is due to disappear due to wave erosion "probably around the year 2020". Which raised an obvious question: is it still there?

  • S2020E35 DISCONNECTED with Alec of Technology Connections, Sally Le Page, and Arun from mrwhosetheboss

    • August 20, 2020
    • YouTube

    Alec, Sally and Arun join me at the top of the virtual tower for a game where it doesn't matter if you're wrong... as long as no-one calls you on it.

  • S2020E36 Which Is "Bouba", and Which Is "Kiki"?

    • August 24, 2020
    • YouTube

    Sooner or later, I was going to get around to this: it's one of the most famous experiments in linguistics. • Written with Molly Ruhl and Gretchen McCulloch.

  • S2020E37 DISCONNECTED with Vanessa from Braincraft, Kati Morton and Jarvis Johnson

    • August 27, 2020
    • YouTube

    Vanessa, Kati and Jarvis are the final three players on the broadcast tower, playing a quiz where if you bluff well enough, you don't even need to know the answers.

  • S2020E38 Swimming between two continents, debunked

    • August 31, 2020
    • YouTube

    Silfra, in Þingvellir National Park in Iceland, is where the Eurasian and North American continental plates are dividing. It's a crack in the earth where you can snorkel or dive between the continents. Well, sort of. As ever, it's a bit more complicated than that.

  • S2020E39 DISCONNECTED: The Champion of Champions Grand Final

    • September 3, 2020
    • YouTube

    The three players who've already won come back to the tower for one final battle. One of them will leave the Champion of Champions: and two will be Disconnected.

  • S2020E40 1,204,986 Votes Decided: What Is The Best Thing?

    • September 7, 2020
    • YouTube

    Sometimes, you regret asking a question.

  • S2020E41 Would you swim in power plant wastewater?

    • September 14, 2020
    • YouTube

    Normally, the answer would be no. But in these very limited circumstances, at Iceland's Blue Lagoon, you can swim in geothermal power plant wastewater, and it's even healthy: although the marketing material doesn't usually mention it. Here's a story about geothermal energy, cheap heat, and how to keep some ducks warm.

  • S2020E42 The tiny monorails that once carried James Bond

    • September 21, 2020
    • YouTube

    The Roadmachines Mono-Rail may have been the only truly useful, fit-for-purpose monorail in the world. Of the hundreds that were built, most were never meant for passengers. But they did carry a couple of famous people in their time, including a certain secret agent...

  • S2020E43 How Binary Search Makes Computers Much, Much Faster

    • September 28, 2020
    • YouTube

    Featuring binary versus linear search, and non-clustered indexes. Uh, indices. However you want to say it.

  • S2020E44 We Built A Lie-Detector Skeleton From 1927

    • October 5, 2020
    • YouTube

    Happy October. Thanks to Daniel, Tom, and Chloe, their channels are below!

  • S2020E45 The theme park inside an old nuclear power plant

    • October 12, 2020
    • YouTube

    Wunderland Kalkar, near the German-Dutch border, is a family amusement park... inside a nuclear power plant that was never turned on.

  • S2020E46 It’s pronounced GIF.

    • October 19, 2020
    • YouTube

    Is there a "right" way to pronounce it? And why is it so complicated? • Written with Molly Ruhl and Gretchen McCulloch.

  • S2020E47 My unlicensed hovercraft bar is technically legal

    • October 26, 2020
    • YouTube

    If you want to sell alcohol in England, you need a license. But the Licensing Act 2003 has some unusual exceptions.

  • S2020E48 If these pumps ever stop, part of Germany floods.

    • November 2, 2020
    • YouTube

    The Ruhr Valley, in north-west Germany, is an industrial coal-mining area. And because of that kilometre-deep mining, parts of it have sunk, the drainage patterns have changed: and now, if the pumps of Emschergenossenschaft ever stop, quite a few towns and cities will end up flooded.

  • S2020E49 Five Things You Can't Do On British Television

    • November 9, 2020
    • YouTube

    Pull down this description for information on all the shows I mention, plus all my references, and some advice if you're looking to subtitle your videos!

  • S2020E50 I Almost Learned To Fly A Jetpack

    • November 16, 2020
    • YouTube

    Gravity Industries make jetpacks. They're not practical. They're not meant for mass use. But they are a lot of fun. They asked if I wanted to try flying one.

  • S2020E51 Why The Web Is Such A Mess

    • November 23, 2020
    • YouTube

    Tim Berners-Lee envisioned a "universal information system". What went wrong?

  • S2020E52 We walked the most dangerous path in Britain

    • November 30, 2020
    • YouTube

    The Broomway is surrounded on both sides by quicksand and deep, sucking mud. It has no markers and no guideposts. And if you mistime your walk, you won't outrun the tide. Oh, and it's in the middle of a Ministry of Defence firing range. But most of the time, if you want to visit Foulness Island, it's the only way.

  • S2020E53 How Many Languages Are There?

    • December 7, 2020
    • YouTube

    The answer is, of course, a bit more complicated than you might think. • Written with Molly Ruhl and Gretchen McCulloch.

  • S2020E54 The never-used road where the BBC crash cars

    • December 14, 2020
    • YouTube

    There are lots of disused and never-used roads and bridges in the world. But the Road to Nowhere in Yate, in south-west England, does still sometimes have traffic driving on it. And crashing on it.

  • S2020E55 The Greatest Title Sequence I've Ever Seen

    • December 21, 2020
    • YouTube

    This is a story about a television title sequence, and about me, as a child, watching it. It’s also a warning about how YouTube won’t last forever, and it's the reason I'm climbing one particular hill in the Lake District. Merry Christmas, Denis Norden.

  • S2020E56 How Weird Is My Audience? I Polled 15,408 People To Find Out

    • December 28, 2020
    • YouTube

    I asked my audience six questions: some sensible, some ridiculous. I compared their results to the public. And the results were... interesting.

Season 2021

  • S2021E01 Trying To Fail A Drug Test On Purpose

    • January 4, 2021
    • YouTube

    Drug tests don’t just work as a buzzkill, they can keep doctors and patients honest regarding some of the more dangerous drugs known to man. The problem is, poppy seeds can throw a giant wrench in that circle of trust! Poppy seeds come from the papaver somniferum flower native to Turkey, and even though they don’t contain opium, consuming the seeds has historically caused the tests to register opiate use! In this video, I explore how these tests work, what they look for, and how something as simple as a bottle of seeds available at any grocery store, can cause a false positive for painkillers, heroin, morphine, and other drugs.

  • S2021E02 Australia's Bushfire-Hunting Satellites

    • January 11, 2021
    • YouTube

    Turns out that trying to precisely detect fire from space is more difficult than "point a camera at it".

  • S2021E03 Trying To Create an AI Tom Scott (on a $100 budget)

    • January 18, 2021
    • YouTube

    And, please don't try this at home.

  • S2021E04 The Radioactive Beach In New York

    • January 25, 2021
    • YouTube

    Dead Horse Bay served as an unofficial dump for decades, and now as the sand is washed away the boroughs' history is slowly being revealed, one china plate and glass bottle at a time. It's popular with local archeologists (both ameteur "treasure hunters" and professionals) as they wade through New York City's past. But this year, a darker side of the city's history has emerged: traces of radon gas and gamma radiation exceeding ambient levels. As parts of the beach have been closed off, locals are worried: will their artifacts and their history now just wash out to sea? And when trash becomes treasured, do we have a responsibility to preserve it?

  • S2021E05 Hill Hill Hill Hill, debunked, debunked

    • February 1, 2021
    • YouTube

    Torpenhow Hill, in the Lake District in the north-west of England, is the only place in the world whose name has the same word four different times. That's the story, anyway. The truth is a bit more complex.

  • S2021E06 YouTubers have to declare ads. Why doesn't anyone else?

    • February 15, 2021
    • YouTube

    Around the world, there are regulations for "influencers". Those regulations make sure that if someone is paid to endorse a product, they have to declare that payment to the people watching. But why does no-one on TV, or film, or anywhere else have to do that?

  • S2021E07 I asked an AI for video ideas, and they were actually good

    • February 22, 2021
    • YouTube

    I didn't expect this to work so well. • Includes text generated by OpenAI's GPT-3 at my request

  • S2021E08 Why Progress Bars Don't Move Smoothly ▓▓▓░░░░░░

    • March 1, 2021
    • YouTube

    4 minutes remaining. Then 15 seconds. Then 5 hours. Why can't computers just tell you how long something's going to take?

  • S2021E09 Why Hollywood explosions don't look like real explosions

    • March 8, 2021
    • YouTube

    Explosions on film are made to look good: fireballs and flame. In reality, though, they're a bit disappointing. Here's how Hollywood does it. • Produced with an experienced, professional pyrotechnician. Do not attempt. Thanks to Steve from Live Action FX!

  • S2021E10 No-one is going to save Covehithe

    • March 15, 2021
    • YouTube

    On the south-east coast of England sits Covehithe: a little Suffolk village going back at least a thousand years. By the end of the century, it'll likely have fallen into the sea. Here's why no-one's planning to save it.

  • S2021E11 Why Shakespeare Could Never Have Been French

    • March 22, 2021
    • YouTube

    Shakespeare sounds a certain way. Why? And why could it only work in English? • Written with Gretchen McCulloch of Lingthusiasm!

  • S2021E12 "High explosives" doesn't just mean "bigger boom"

    • March 29, 2021
    • YouTube

    I didn't even realise that "low explosives" were a thing; let's talk about deflagration, detonation, and how high explosives can actually be safer. • Thanks to Steve from Live Action FX!

  • S2021E13 This changed my mind about aquariums.

    • April 5, 2021
    • YouTube

    "Life support system" were the three key words that convinced me to do a video about an aquarium. Because yes: behind the scenes at The Deep, an aquarium in Hull, there's a life support system, and it deserves that name.

  • S2021E14 What Color Is My Hoodie?

    • April 12, 2021
    • YouTube

    Grey? Blue? Purple? It can look different, depending on the context. Let's talk about color perception, color temperature, and the history of laundry.

  • S2021E15 I asked an AI for video ideas for other YouTubers. It went badly.

    • April 19, 2021
    • YouTube

    GPT-3: not quite up to the task. Yet.

  • S2021E16 England's oldest attraction turns teddy bears to stone

    • April 26, 2021
    • YouTube

    In Knaresborough, in Yorkshire, sits Mother Shipton's Cave. Folks there have been charging admission for nearly 400 years, and the star of the show is a "petrifying well". A few folk legends do actually turn out to be true.

  • S2021E17 Taking The Emergency Exit From A Wind Turbine

    • May 3, 2021
    • YouTube

    Wind turbines have emergency exits, but they might not be for the reason you think.

  • S2021E18 The beach where Lego keeps washing up

    • May 10, 2021
    • YouTube

    Perranporth Beach, in Cornwall, is famed for being the "Lego beach". The truth is more complicated.

  • S2021E19 I promise this story about microwaves is interesting.

    • May 17, 2021
    • YouTube

    I found an article that said "The microwave was invented to heat hamsters humanely in 1950s experiments." And I thought, no it wasn't. ...was it?

  • S2021E20 The long-forgotten history of the British moon spacesuit

    • May 24, 2021
    • YouTube

    Decades before NASA's Apollo program, the British Interplanetary Society wanted to go to the moon: in a spacesuit that looked like a suit of armour.

  • S2021E21 The Accidental Rush for Anthrax Island

    • May 31, 2021
    • YouTube

    Gruinard Island, in the north-west of Scotland, was where Britain tested its biological weapons. That story's been told many times: but I found something in the archives that I don't think anyone's ever noticed before.

  • S2021E22 The world's last turntable ferry has a really clever design

    • June 7, 2021
    • YouTube

    In Glenelg, on the west coast of Scotland, there's the Skye Ferry: the last turntable ferry in the world. And the reason for that turntable is a lot more clever than I initially thought.

  • S2021E23 Landing at the only airport that's also a public beach

    • June 14, 2021
    • YouTube

    Barra Airport, in Na h-Eileanan Siar in the west of Scotland, is unique: it's the only commercial airport where the runway's made of sand, and tide covers it up twice a day. Here's how it works.

  • S2021E24 History forgot these old fireworks. We recreated them.

    • June 21, 2021
    • YouTube

    Around the old mining areas of North Wales, you can find rock cannon: old Welsh firework sites. Most of the world has never heard of them: so we recreated them on a test range. • Thanks to Steve from Live Action FX: http://liveactionfx.com/ • Thanks to Owain for the idea!

  • S2021E25 The Shocking New Use for Red Telephone Boxes

    • June 28, 2021
    • YouTube

    What do you do with a disused phone box? And can they help save lives?

  • S2021E26 How many robots does it take to run a grocery store?

    • July 5, 2021
    • YouTube

    In Ocado's grocery warehouses, thousands of mechanical boxes move on the Hive. Are they all individual robots? Or is this one giant hive mind?

  • S2021E27 The UK's last aerial ropeway uses no power, moves 300 tonnes a day, and will be gone by 2036.

    • July 12, 2021
    • YouTube

    In Claughton, Lancashire, the Forterra brickworks produces 50 million bricks a year, from shale that's quarried a mile and a half away. To get that shale to the brickworks: the last aerial ropeway in the country. These used to be common: but now, the last one will be gone by 2036.

  • S2021E28 An Unedited, Rain-Soaked Ride on Claughton's Aerial Ropeway

    • July 19, 2021
    • YouTube

    Here's the full video from a camera attached to a bucket on the Claughton Aerial Ropeway!

  • S2021E29 I tried to film a volcano and it was a complete disaster

    • July 26, 2021
    • YouTube

    Iceland has a new volcano, Fagradalsfjall: I wanted to visit, to talk about the infrastructure around it, and work out how the country deals with a new and dangerous tourist attraction. It didn't go well.

  • S2021E30 The diving gondola: a strange elevator to the ocean floor

    • August 2, 2021
    • YouTube

    On the German coast of the Baltic Sea, there's a tourist attraction that I think is very strange: the "Tauchgondel", a room that sinks under the waves and lets you go diving... without getting wet.

  • S2021E31 How one little boat (and me) held up miles of London traffic at Tower Bridge

    • August 9, 2021
    • YouTube

    Tower Bridge is a tourist attraction these days: but first and foremost, it's a working, lifting bridge. And river traffic comes first.

  • S2021E32 I helped cover a 5,000-year-old monument with worn-out tires

    • August 16, 2021
    • YouTube

    Ness of Brodgar, in Orkney, is one of the most important archaeological sites in western Europe. This week, it was covered by old, worn-out tires. Here's why.

  • S2021E33 The Islands With Too Much Power

    • August 23, 2021
    • YouTube

    The Orkney Islands, off the northern tip of Scotland, have so much electricity that it's actually a problem. Here's why: and here's what they're doing about it. • This video has a correction: Hornsdale Power Reserve didn't catch fire! It was the newer Victorian Big Battery, near Geelong. Complete blunder on my part, apologies to the Hornsdale team.

  • S2021E34 I took the world's shortest flight. It was underwhelming.

    • August 30, 2021
    • YouTube

    The flight between Papa Westray and Westray takes 80-90 seconds and covers about 2km. Why does it exist? And what's it like? On a rainy day in the Orkney Islands, I went to find out.

  • S2021E35 Why this observatory fires lasers at satellites

    • September 6, 2021
    • YouTube

    NERC's Space Geodesy Facility, hidden away in the English countryside, fires lasers at satellites. Because it turns out that knowing a satellite's position exactly is really, really difficult.

  • S2021E36 Three strange river crossings

    • September 13, 2021
    • YouTube

    Over the Manchester Ship Canal, you'll find the Hulmes Ferry, the Thelwall Ferry, and the Warburton Toll Bridge. They're all strange in their own way, all under the control of one company, and all dating back to old laws and legal documents from a hundred years ago. I was in the area, so I stopped by, and found that things might be changing soon.

  • S2021E37 The public toll road with no speed limit

    • September 20, 2021
    • YouTube

    The Nürburgring Nordschleife is the longest permanent racetrack in the world: 21km of unforgiving blind corners and hills, nicknamed "the Green Hell". Oh, and some days, it's also just a public toll road with no speed limit.

  • S2021E38 The world's most useful model railway

    • September 27, 2021
    • YouTube

    In Darmstadt, Germany, there's the Eisenbahnbetriebsfeld: a model railway connected to actual railway signalling equipment, so that controllers can learn without putting any real trains in danger. I got to learn the very basics.

  • S2021E39 I thought the Schmid Peoplemover was impossible

    • October 4, 2021
    • YouTube

    An elevator that can go smoothly from horizontal to vertical isn't possible... right? Turns out that the conventional wisdom is wrong, and the Schmid Peoplemover has been doing that for many years.

  • S2021E40 The world's only float-through McDonalds

    • October 11, 2021
    • YouTube

    On a little canal off the Elbe river in Germany, sits the McBoat: the world's only paddle-through McDonalds. It seemed like the sort of thing I should investigate.

  • S2021E41 The shooting range where you fire over a busy road

    • October 18, 2021
    • YouTube

    The Brünnlisau shooting range in Switzerland has its targets on the other side of a major road. And it's safe. Here's how and why. Thanks to everyone at the Schiessanlage Brünnlisau!

  • S2021E42 The highway where trucks work like electric trains

    • October 25, 2021
    • YouTube

    In Lübeck, Germany, there's one of several eHighway test projects: overhead catenary wires, where electric trucks with pantographs can pull power directly from the grid. Thanks to everyone who gave so much time to make this video possible!

  • S2021E43 An actual, real-world use for robot dogs

    • November 1, 2021
    • YouTube

    At a pumped storage plant in western Austria, a company called Energy Robotics is testing robot dogs for inspection. All the fancy Boston Dynamics publicity stunts aside: are the robots actually useful? ■ As ever: this is not an advert, Energy Robotics and illwerke vkw had no editorial control. They just asked "do you want to fly your drone inside the Obervermuntwerk II hydroelectric power plant to film a robot dog", and of course I immediately said yes.

  • S2021E44 Why this "falling rocks" sign is more important than most

    • November 8, 2021
    • YouTube

    In Brienz/Brinzauls, a small village in the east of Switzerland, there's a village slipping into a valley and a road that's surprisingly dangerous. Thanks to everyone I interviewed: pull down the description for links and more details!

  • S2021E45 This tiny railroad across the sea has an important job

    • November 15, 2021
    • YouTube

    The Lorenbahn, the Lüttmoorsiel-Nordstrandischmoor island railway, is famous for the tiny, private trains that take residents to and from the mainland. But that's not why it was built: and it's got a more useful purpose as well. Thanks to everyone from Landesbetrieb für Küstenschutz, Nationalpark und Meeresschutz Schleswig-Holstein, and to the islanders, for all your time and patience!

  • S2021E46 The tunnel where people pay to inhale radioactive gas

    • November 22, 2021
    • YouTube

    In most of the world, inhaling radon for pain relief sounds like a bizarre idea. In some places, though, it's so accepted that it's prescribed by doctors and covered by health insurance. And I have no idea how to talk about it. Thanks to the team at the Radonstollen in Bad Kreuznach: you can find out more about them at https://www.acuradon.com

  • S2021E47 The town where holding fireworks over your head is a tradition

    • November 29, 2021
    • YouTube

    Bridgwater Carnival, in Somerset, has a long tradition of squibbing: a huge procession of people holding fireworks right above their heads. This year, I got the chance to be one of the squibbers. Thanks to all the Bridgwater Carnival team: their site is https://www.bridgwatercarnival.org.uk/

  • S2021E48 The world's most expensive object by weight

    • December 6, 2021
    • YouTube

    At $8.3 million dollars for around 40 milligrams, the British Guiana 1c magenta is the world's most expensive object by weight: it's a postage stamp from 1856, the only one of its kind.

  • S2021E49 The Thames Barrier must never fail. Here's why it doesn't.

    • December 13, 2021
    • YouTube

    The Thames Barrier is a wonder of engineering. If it fails, then London floods. Here's how the engineers there make sure it doesn't fail.

  • S2021E50 The hidden background noise that can catch criminals

    • December 20, 2021
    • YouTube

    Electrical Network Frequency analysis, ENF analysis, matches background hum against power grid logs. I talked to one of the researchers who works on it, and also set them a challenge.

  • S2021E51 Five YouTubers. Five games. $10,000. ⋮ Money: the full series

    • December 27, 2021
    • YouTube

    I invited Rohin from @MedlifeCrisis, Sophie from @SophsNotes, @MikeBoyd, Sam from @Wendoverproductions, and @MiaMulder to play some games. They'll be tempted by individual profit over group wealth, in an environment designed to slowly break their team apart. But all they knew is: they'd be sat around a table trying to win cash: over $10,000. This is a show about trust, about loyalty... and about Money.

Season 2022

  • S2022E01 The meters-high mountain of mannequins in the Midlands

    • January 3, 2022
    • YouTube

    Mannequins are generally bought, used once for a project, and then thrown away to landfill. Except here, at Mannakin in Lincolnshire. Thanks to Roz and the team at Mannakin: https://mannakin.com My first thought was "don't those mannequins rot, just sitting out there in the weather?" And then I realised: no, not really, they're fibreglass. That's part of the problem Mannakin's trying to help with!

  • S2022E02 Ten years ago, I predicted 2022. Did I get it right?

    • January 10, 2022
    • YouTube

    Predicting the future is a fool's errand, but I tried it: talking about phones, lifelogging, and social changes. And on top of that: what do I think's coming in 2032?

  • S2022E03 There's a £100,000 coin buried under this London building

    • January 17, 2022
    • YouTube

    The 1933 British penny is one of the most famous coins in the world. I'm not saying this is definitely a heist movie waiting to happen... but I do think someone should write it. ■ Thanks to the team at Baldwin's, and the penny's owner, for letting me film it! https://www.baldwin.co.uk/

  • S2022E04 How one British laboratory protects the world's chocolate

    • January 24, 2022
    • YouTube

    The International Cocoa Quarantine Centre, at the University of Reading, has an important job: stop pests and viruses from hitching a ride, as researchers try to breed better and hardier varieties of cocoa. Here's how they do it.

  • S2022E05 Literally just three minutes where I talk about some rocks

    • January 31, 2022
    • YouTube

    Hutton's Unconformity, at Siccar Point, is about an hour east of Edinburgh, in Scotland, and I've wanted to set my own two feet on it for years. And from it, I've got a bigger question: is there anything we've missed?

  • S2022E06 The giant chainmail box that stops a house dissolving

    • February 7, 2022
    • YouTube

    The Hill House, in Helensburgh, Scotland was decades ahead of its time... but that means it's also experimental. And damp.

  • S2022E07 The top secret plan to explode a nuclear bomb in Yorkshire

    • February 14, 2022
    • YouTube

    In the 1960s, America was running "Operation Plowshare": the idea that perhaps nuclear bombs could be used for peace, not war. At least some British scientists had similar ambitions, and it involved setting off a nuclear bomb under Wheeldale, in the North York Moors National Park. Based on catalogue reference ES 26 in the National Archives, mainly ES 26/2 and 26/4. "Atomic Weapons Research Establishment and Atomic Weapons Establishment: Peaceful Uses of Nuclear Explosions: Files and Reports".

  • S2022E08 This town forgot to be a city

    • February 21, 2022
    • YouTube

    Rochester, in the south-east of England, was a city for nearly 800 years. And then, in 1998, an administrative error took that city status away, likely forever. Here's the story. Research and script assistance from Jess Jewell

  • S2022E09 The Elie Chainwalk is safe, as long as you follow the signs

    • February 28, 2022
    • YouTube

    In Fife, in the south-east of Scotland, there's the Elie Chain Walk: a footpath that's got a reputation for being dangerous. It isn't — as long as you're prepared, and as long as you watch out for the tide. Thanks to Allan Dunlop and Carrie Blair from Outdoor Education Fife, for both guiding me and holding the cameras!

  • S2022E10 After 140 years, this old technology still keeps trains safe

    • March 7, 2022
    • YouTube

    "Anderson's Piano" is a set of wires and signals at the Pass of Brander, near Falls of Cruachan in Scotland, that try to detect when there might be a boulder on the track. They're 140 years old, and so far no-one's been able to find a better solution — but they're working on it.

  • S2022E11 14 science fiction stories in under 6 minutes

    • March 14, 2022
    • YouTube

    I can't make science fiction any more. So, to get the ideas I have out of my head, I went to a Standard BBC Quarry, and put all of them one video. Pull down the description for a list of the books that inspired these!

  • S2022E12 Reopening an airport terminal is harder than you might think

    • March 21, 2022
    • YouTube

    On Sunday, the South Terminal at London's Gatwick Airport will reopen for the first time since 2020. It turns out that mothballing an entire terminal isn't quite as easy as turning out the lights. Thanks to all the team at Gatwick Airport! (To be clear, this isn't a sponsored video: I approached them about filming this, and I'm grateful for the access. I did not expect to get out on the airfield.) Bonus fact for pulling down the description: this was filmed on Wednesday, when the cloud of Saharan dust was in the atmosphere. I had to do a lot of colour-correction to make the outside scenes look normal!

  • S2022E13 The giant archive hidden under the British countryside

    • March 28, 2022
    • YouTube

    Deepstore doesn't let many people film in their massive facilities. So when the team at Laura Ashley invited me down into the mine to look at their archives, I jumped at the chance.

  • S2022E14 How does Britain know what time it is?

    • April 4, 2022
    • YouTube

    Did I need to get a radio controlled clock and travel to Anthorn to film this video? Absolutely not. But for a few minutes, that clock was really, really accurate.

  • S2022E15 My robot double sells out (so I don't have to)

    • April 11, 2022
    • YouTube

    With many thanks to all the team at Engineered Arts who worked on this. To be clear, this is not sponsored by them, I paid money (technically, NordVPN's money) for the Mesmer robot -- or at least, for the silicone mask and 3D printed skull that were put together for just one day!

  • S2022E16 The bridge that must legally wobble

    • April 18, 2022
    • YouTube

    "Daly's Bridge", in Cork, Ireland, is better known as the Shakey Bridge. Because it shakes. But what happens when a bridge like that has to be repaired and refurbished?

  • S2022E17 Downhill, on a couch, on public roads.

    • April 25, 2022
    • YouTube

    The Monte Toboggans, in Funchal on the island of Madeira, are wicker sofas: a bit like the gondolas of Venice, only you're going downhill in regular traffic.

  • S2022E18 Europe's toughest airport landing used to be a lot harder

    • May 2, 2022
    • YouTube

    Funchal Airport, on the island of Madeira, was too short for modern commercial airliners: but there was nowhere to extend to. The solution is one of the greatest civil engineering projects of our time.

  • S2022E19 You're not allowed in this cave. But there's a copy.

    • May 9, 2022
    • YouTube

    The Chauvet cave, in the south of France, is one of the most important archaeological sites in the world, filled with art that's tens of millennia old. No-one's allowed in, for very good reasons: but just a few kilometres away, there's a near-exact copy. Is that enough?

  • S2022E20 I flew with birds. You can too.

    • May 16, 2022
    • YouTube

    In southern France, there's a man called Christian who flies a microlight aircraft, alongside flocks of birds. And he takes passengers.

  • S2022E21 The massive Fatigue Carousel helps keep roads safe

    • May 23, 2022
    • YouTube

    The "accelerated pavement testing facility" in Nantes can simulate decades of road traffic in a few months. Here's how.

  • S2022E22 I rode a giant mechanical elephant. You can too.

    • May 30, 2022
    • YouTube

    Les machines de l'île, in Nantes, are famous for their giant mechanical elephant. And to my surprise, tourists can just pay and ride it.

  • S2022E23 Maybe rich people should build weird fountains again

    • June 6, 2022
    • YouTube

    The Wasserspiele of Bergpark Wilhelmshöhe are 300 years old, powered entirely by gravity, and entertaining tourists. As legacies for rich people go, there are far worse ones.

  • S2022E24 It's a pile of mining waste. Want to go skiing on it?

    • June 13, 2022
    • YouTube

    Monte Kaolino, in Bavaria, Germany, is 35 million tonnes of quartz sand, piled up over the years from a nearby kaolin mine. In the 1960s, one guy just turned up with skis, and now half a century later it's a theme-park destination for sandboarders and skiiers.

  • S2022E25 Can you really drive while facing backwards?

    • June 20, 2022
    • YouTube

    The team at Sparkmate (https://Spkm.co/Build) asked if I had any ideas for things to build. And I realised that, yes, I had a question to answer: and it all goes back to an old kids' television show called "Captain Scarlet and the Mysterons"...

  • S2022E26 This clock was famous, but the internet ruined it.

    • June 27, 2022
    • YouTube

    It feels like no-one's told the world about this yet.

  • S2022E27 A working flight simulator, no computers necessary

    • July 4, 2022
    • YouTube

    There are only a few working Link Trainers left in the world: but before microprocessors, before display screnes, half a million pilots learned the basics of instrument flying inside one.

  • S2022E28 Flying here is (surprisingly) legal

    • July 11, 2022
    • YouTube

    The Hudson River Special Flight Rules Area is an incredible thing: unrestricted airspace right next to Manhattan. We flew it.

  • S2022E29 I visited the Yellowstone Zone of Death

    • July 18, 2022
    • YouTube

    I feel like there are other YouTube channels that would take a different approach here.

  • S2022E30 The world's largest walking robot

    • July 25, 2022
    • YouTube

    Tradinno weighs 11 tonnes, has a 12-metre wingspan, and breathes fire. And every year, someone has to stab it with a spear.

  • S2022E31 A geyser that shoots sparkling mineral water

    • August 1, 2022
    • YouTube

    In Soda Springs, Idaho, there's a geyser that fires carbonated water into the air, on the hour, every hour. I paid a visit.

  • S2022E32 How the US Postal Service reads terrible handwriting

    • August 8, 2022
    • YouTube

    At the Remote Encoding Center in Salt Lake City, keyers process 1.2 billion images of mail every year. It's a more difficult job than I thought.

  • S2022E33 Delivering mail by jumping from a moving boat

    • August 15, 2022
    • YouTube

    On Lake Geneva, Wisconsin, there's a summer tradition: "mail jumping". It's a bit dangerous, a bit ridiculous, and would never be allowed to start today. But it's a tradition.

  • S2022E34 Why the US Army electrifies this water

    • August 22, 2022
    • YouTube

    The Chicago and Sanitary Ship Canal is the path that invasive carp would take to reach the Great Lakes. So to stop them, the US Army Corps of Engineers has installed an electric barrier. Although for obvious reasons, I didn't get to see it close up. [The interviewee is project manager Jeff Zuercher, whose name caption got missed out! Apologies, Jeff.]

  • S2022E35 This massive truck makes artificial earthquakes

    • August 29, 2022
    • YouTube

    The "T-Rex" is the University of Texas' large mobile shaker, and I got to see it in action.

  • S2022E36 This is the most interesting roof in London.

    • September 5, 2022
    • YouTube

    The @royalalberthall is 150 years old; the roof is 600 tonnes of glass and steel. And it turns out that there's a terrifying technicians' trampoline, acoustic-dampening mushrooms, and a complete lack of connections.

  • S2022E37 How much helium does it take to lift a person?

    • September 12, 2022
    • YouTube

    The Aéroplume, in France, is a helium blimp sized for one person. €60 gets you half an hour's flight. I had to try it.

  • S2022E38 Why do YouTubers clap at the start of videos?

    • September 19, 2022
    • YouTube

    It's about synchronisation, right? Well, not exactly...

  • S2022E39 I thought the treadmill crane was fictional.

    • September 26, 2022
    • YouTube

    The treadwheel crane, or treadmill crane, sounds like something from Astérix or the Flintstones. But at Guédelon in France, not only do they have one: they're using it to help build their brand new castle. ▪ More about Guédelon: https://www.guedelon.fr/

  • S2022E40 I finally found a useful monorail.

    • October 3, 2022
    • YouTube

    The Doppelmayr Garaventa Monorack is a decades-old product. I've no idea how I missed it before. But for the third video in the Monorail Trilogy, this isn't an advert: I'm just happy to be proved wrong.

  • S2022E41 Keeping the world's longest railroad tunnel safe

    • October 10, 2022
    • YouTube

    The Gotthard Base Tunnel in Switzerland is 57km long: and I think its greatest piece of safety equipment is nowhere near the tunnel itself.

  • S2022E42 This 1970s tank simulator drives through a tiny world

    • October 17, 2022
    • YouTube

    At the Swiss Military Museum in Full, there's the last remaining example of a 1970s tank-driving simulator. But there's no virtual worlds here: it's connected to a real camera and a real miniature model.

  • S2022E43 The government approves of this shark now.

    • October 24, 2022
    • YouTube

    The Headington Shark, in Oxford, UK, is a local icon: but it was protest art, put up without permission. Now, the local government wants to protect it. ▪ The Shark House: https://www.headingtonshark.com/

  • S2022E44 Is Poland's tap water really protected by clams?

    • October 31, 2022
    • YouTube

    There's a lot of articles written about how tap water in Warsaw is constantly tested by a small team of clams. It felt like a hoax to me: so I went to find out. ▪ Thanks to MPWiK Warsaw: https://www.mpwik.com.pl/

  • S2022E45 This electric ferry uses a very long extension cord

    • November 7, 2022
    • YouTube

    The Udbyhøj Cable Ferry across Randers Fjord in Denmark is electric-powered: but rather than batteries, it's plugged into mains electricity. Here's how it works. ▪ More about the ferry: https://www.randersfjord-faerger.dk/

  • S2022E46 This river can be switched on and off

    • November 14, 2022
    • YouTube

    Surely water simulation can be done with computers now? Well, not quite. At the University of Sherbrooke, there's an artificial research river, and I asked them to start it up. ▪ The University's civil engineering department: https://www.usherbrooke.ca/gcivil/

  • S2022E47 Why build a diving board twice the Olympic height?

    • November 21, 2022
    • YouTube

    The Montreal Olympic Sports Centre has a 20m (65ft) diving board. That's twice the Olympic height. Why would anyone need that?

  • S2022E48 Cheap, renewable, clean energy. There's just one problem.

    • November 28, 2022
    • YouTube

    The Bay of Fundy has cheap, clean power: if you can harness it.

  • S2022E49 Firing radioactive stuff at high speed under city streets

    • December 5, 2022
    • YouTube

    TRIUMF's Rabbit Line, on the University of British Columbia campus, sends slightly radioactive material under the streets of Vancouver at 100km/h (60mph). Here's how and why.

  • S2022E50 The US government is giving out free wasps

    • December 12, 2022
    • YouTube

    The brown marmorated stink bug is an invasive pest. To help deal with its numbers, the Oregon Department of Agriculture is releasing its natural enemy: the tiny samurai wasp. There's a lot of work that goes into it. ▪ Thanks to all the team at the ODA, and to Chris Hedstrom for the macro footage.

  • S2022E51 I was wrong (and so was everyone)

    • December 19, 2022
    • YouTube

    Did 18th century firefighters really let buildings burn? Sources below

  • S2022E52 Doing robotic surgery on a copy of myself

    • December 26, 2022
    • YouTube

    Thanks to Lazarus 3D: https://www.lazarus3d.com/ ▪ Lazarus had no editorial control over this video, and I paid for my own MRI, but of course they helped set everything up and provided the print!

Season 2023

  • S2023E01 The "architecture graveyard" is alive and well

    • January 2, 2023
    • YouTube

    Poly Canyon, at Cal Poly, is an experimental architecture laboratory.

  • S2023E02 This rollercoaster doesn't stop automatically

    • January 9, 2023
    • YouTube

    The Great Scenic Railway, at Luna Park in Melbourne, Australia, is the second oldest rollercoaster in the world: and it's one of only a few which still uses a manual brake. Here's how it works.

  • S2023E03 These chickens save lives.

    • January 16, 2023
    • YouTube

    "Sentinel chickens" are an early-warning system against some nasty mosquito-borne diseases. I visited a flock in New South Wales, Australia.

  • S2023E04 I took a ride on a moving radio telescope

    • January 23, 2023
    • YouTube

    The Parkes Radio Telescope, Murriyang, part of CSIRO, is one of the most famous telescopes in the world: and it's got a unique way of getting equipment up and down from the central section.

  • S2023E05 Why Australia bottles up its air

    • January 30, 2023
    • YouTube

    Every few months, when the wind's blowing in the right direction, a bottle of air is taken from Kennaook / Cape Grim, at the northern tip of Tasmania, and saved for science. Here's how and why.

  • S2023E06 Google gave the Shweeb $1,000,000.

    • February 6, 2023
    • YouTube

    At Velocity Valley in Rotorua, New Zealand, there's the Shweeb: a pedal-powered monorail. It's a fun ride: but in 2010, Google gave it a million dollars as a potential "future of transit".

  • S2023E07 I tried using AI. It scared me.

    • February 13, 2023
    • YouTube

    I just wanted to fix my email.

  • S2023E08 This café sends food through pneumatic tubes

    • February 20, 2023
    • YouTube

    C1 Espresso, in Christchurch, New Zealand, has a set of pneumatic tubes. But that's not enough on its own to keep a business running.

  • S2023E09 This is “impossible”, but New Zealand is trying anyway.

    • February 27, 2023
    • YouTube

    The common wisdom is that, once an invasive species is truly established, it can't be eradicated — but I talked to the team from Predator Free Wellington, who think they can do just that.

  • S2023E10 The city with a hundred private cable cars

    • March 6, 2023
    • YouTube

    Wellington, in New Zealand, has more than a hundred private cable cars. I found out why.

  • S2023E11 Things are changing at the world's oldest hotel

    • March 12, 2023
    • YouTube

    Nishiyama Onsen Keiunkan is not just the world's oldest hotel, but the world's oldest still-operating business. Or at least, that's one way of looking at it. But things are changing here, just like they always have.

  • S2023E12 This bus transforms into a train

    • March 18, 2023
    • YouTube

    The DMV, or Dual Mode Vehicle, on the Asa Coast Railway in Shikoku, Japan, is a hybrid bus and train. And I rode it.

  • S2023E13 I climbed inside a giant robotic parking garage

    • March 27, 2023
    • YouTube

    I was going to film a video about a robot bicycle park. And then GIKEN, the company who built it, said: you know we do this for cars as well, right?

  • S2023E14 I rode the world's fastest train.

    • April 3, 2023
    • YouTube

    I thought maglev trains were a dead-end technology: but it looks like I was wrong. At JR Central's Yamanashi Maglev Test Track, I rode Japan's new maglev.

  • S2023E15 This tiny hovercraft went viral.

    • April 10, 2023
    • YouTube

    Hideyasu Ito runs the Micro Hovercraft Laboratory, and I got to meet him and ride his incredible four-bubble hovercraft.

  • S2023E16 It's the Matrix, but for locusts.

    • April 17, 2023
    • YouTube

    At the Department of Collective Behaviour, part of the Max Planck Institute of Animal Behavior, researchers are putting locusts into simulated worlds, both virtual and physical, in the hope that they can figure out how devastating swarms form and move.

  • S2023E17 The military base where you drive over the runway

    • April 24, 2023
    • YouTube

    Meiringen Air Base, in Switzerland, has an unusual feature: two public roads that go straight over the runway. How do they keep it safe? And, as a side note, just how loud is it when you're standing next to a fighter jet? (Bonus things that didn't fit into the video: the aircraft aren't stored in hangars, but in caverns tunneled into the hillside! And if you want to get really close to the jets, there's a second, much narrower crossing over a taxiway to the caverns. They're not taking off at high speed there, though.)

  • S2023E18 How they saved the holes in Swiss cheese

    • May 1, 2023
    • YouTube

    Agroscope is a Swiss government-backed agricultural research lab. It's got a lot of other resarch projects too, but it also keeps a backup of the Swiss cheese bacterial cultures... just in käse.

  • S2023E19 The world's cleanest railway

    • May 8, 2023
    • YouTube

    At CEA-Leti, in Grenoble, there's a "funicular" that not many people get to ride: because it's between two clean rooms, and getting to it requires quite a lot of preparation.

  • S2023E20 The people who get paid to get sick

    • May 15, 2023
    • YouTube

    I went inside the former hotel where, for science (and money), people are volunteering to get colds, flu, and RSV.

  • S2023E21 Shake tables are way more complex than I thought

    • May 22, 2023
    • YouTube

    At the University of California San Diego, there's the Shake Table: an earthquake simulator with the heaviest payload capacity in the world.

  • S2023E22 This is an excuse to show you a really good tunnel

    • May 29, 2023
    • YouTube

    The Catesby Tunnel, in the UK, is an old Victorian railway tunnel that has a new use: a secretive car testing facility, like a wind tunnel but in reverse. So rather than just show it to the world, I thought I'd answer a question: if you stick a camera on the outside of your car, how much does the drag cost you?

  • S2023E23 No-one knows how explosions work (yet)

    • June 5, 2023
    • YouTube

    The first few moments of an explosion can't be simulated yet. But there's a team at the University of Sheffield working on it.

  • S2023E24 I had to throw out my script about this submarine simulator

    • June 12, 2023
    • YouTube

    In an old mill in a remote corner of Italy, sits the Bathysphere Project at Explorandia: a submarine simulator that explores an actual, small pond. It might be the best homemade project I've ever seen.

  • S2023E25 The cable car that you pedal by hand

    • June 19, 2023
    • YouTube

    Through the mountains of Slovenia, there are manual cable cars: some historic, some more modern. There aren't many left. I was able to try one, and to talk to the person who still maintains it. Just to be clear, there are a few of these in other places in the world, too. There's at least a couple in North America, one in Germany, and one in Turkey! (Or at least, I think they still exist.) But the video of the Cicka got me to beautiful Slovenia, and the story that I found there was worth the trip.

  • S2023E26 The first jungle gym was meant to hack kids' brains

    • June 26, 2023
    • YouTube

    Well before the first climbing frame was patented as "jungle gym", mathematician Charles Hinton thought they might be able to teach kids four-dimensional thinking.

  • S2023E27 Six months from now, this channel stops.

    • July 1, 2023
    • YouTube

  • S2023E28 How can you legally fly a plane designed in 1910?

    • July 3, 2023
    • YouTube

    Near Dayton, Ohio there's a lookalike of the Wright Brothers' Model B: a 1910 aircraft with no cockpit. It's a modern plane with a very old design, and I went for a ride.

  • S2023E29 I thought this rotating house was impossible.

    • July 10, 2023
    • YouTube

    Near San Diego, California, there's a rotating house: and somehow, all the utilities, the electricity, gas and water, work even on the rotating part. How's that possible?

  • S2023E30 If this survives for an hour, it passes the Bear Test.

    • July 17, 2023
    • YouTube

    At the Grizzly & Wolf Discovery Center in West Yellowstone, Montana, you can get a product certified as bear-resistant... by actual bears.

  • S2023E31 Grizzly bear GoPro selfie: raw unedited footage

    • July 24, 2023
    • YouTube

    This footage is public domain, and the raw files are available at https://archive.org/details/grizzly-b... ■ An explanation, which is not public domain: • A bear found my GoPro and took a selfie ■ Two videos taken by grizzly bears at the Grizzy & Wolf Discovery Center, West Yellowstone, Montana. The bears found a previously-lost GoPro Hero 11 in a protective case, in their pond, which had enough battery left to take a couple of brief shots, including a selfie. As these video files were created entirely by bears, by accident, I believe them to be in the public domain. If that's not the case, then as the owner of the camera and potential copyright holder, I'm happy to license these files under CC0 and dedicate them to the public domain as far as legally possible. However, if I don't upload them to YouTube first, then someone else will — and YouTube's copyright systems often get confused by public domain footage, so for my own safety...

  • S2023E32 A bear found my GoPro and took a selfie

    • July 24, 2023
    • YouTube

    An unexpected update!

  • S2023E33 Storing dead people at -196°C

    • July 31, 2023
    • YouTube

    In Switzerland, there's a new cryonics company: and they invited me to have a look around. I had questions: legal, practical, and ethical, and I want to be clear: this is not an endorsement. I just wasn't going to turn down that invitation.

  • S2023E34 This town banned cars (except tiny electric ones)

    • August 7, 2023
    • YouTube

    Zermatt, in Switzerland, bans all private cars and all gasoline cars. But if you run a business, you might be able to buy one of the special, tiny ones that are built right there.

  • S2023E35 This town throws pennies at people. They hurt.

    • August 14, 2023
    • YouTube

    The Honiton Hot Pennies ceremony is the result of 800 years of tradition: from when rich people would entertain themselves by throwing scalding-hot pennies onto the poor people below. These days, it's a bit less dangerous... but only a bit.

  • S2023E36 No-one built these for 5,000 years… until now.

    • August 21, 2023
    • YouTube

    Long barrows are Neolithic constructions that might have been churches, or graveyards, or landmarks. And some are being built again: for the first time in recorded history.

  • S2023E37 This man built his office inside an elevator

    • August 28, 2023
    • YouTube

    The Baťa Skyscraper, in Zlín, Czechia, is a landmark of architecture. And the office of Jan Antonín Baťa... is an elevator. [Correction: Jan Antonín Baťa's birth year is 1898; the graphic is a typo.]

  • S2023E38 Why are adverts so loud?

    • September 4, 2023
    • YouTube

    This was so much more complex than I thought.

  • S2023E39 This library has every book ever published.

    • September 11, 2023
    • YouTube

    The British Library is one of the six legal deposit libraries for the UK — and the only one that doesn't pick and choose, or have to ask for copies. That's a lot of books to store, and the internet's only making it worse.

  • S2023E40 How languages steal words from each other

    • September 18, 2023
    • YouTube

    This is the only pirate reference you're getting from me. • Written with Molly Ruhl and Gretchen McCulloch.

  • S2023E41 Spherical houses weren't a great idea

    • September 25, 2023
    • YouTube

    The Bolwoningen, in Den Bosch, in the Netherlands, are experimental architecture: the surprising part is that people still live there.

  • S2023E42 The largest telescope that will ever be built*

    • October 2, 2023
    • YouTube

    The asterisk is important. The Extremely Large Telescope, in Paranal, Chile, is probably going to be the largest optical telescope that will ever be constructed. I was invited out there by the UK Science and Technology Facilities Council and the European Southern Observatory, and I wasn't going to turn down a chance like that.

  • S2023E43 I finally rode the weird, curved German elevator

    • October 9, 2023
    • YouTube

    At the New Town Hall, the Neues Rathaus, in Hanover, there's a strange elevator where the track curves unevenly. For years, people from Germany have been emailing me about it: well, I finally visited.

  • S2023E44 there’dn’t’ve

    • October 16, 2023
    • YouTube

    This script was a nightmare to pronounce. • Written with Molly Ruhl and Gretchen McCulloch.

  • S2023E45 0-100 in less than a second. And I'm driving.

    • October 23, 2023
    • YouTube

    AMZ Racing's "mythen" holds the world record for electric vehicle acceleration: 0-100km/h in 0.956 seconds. And they let me drive it.

  • S2023E46 Boarding planes could have been very different

    • October 30, 2023
    • YouTube

    There's a world in which everyone boards planes with "mobile lounges", PTVs, or Plane-Mates... but this is not that world.

  • S2023E47 Does the language you speak change how you think?

    • November 6, 2023
    • YouTube

    No. Mostly. Written with Molly Ruhl and Gretchen McCulloch.

  • S2023E48 Every mistake I've made since 2014.

    • November 13, 2023
    • YouTube

    Time to correct the record.

  • S2023E49 These tiny ships have a serious purpose

    • November 20, 2023
    • YouTube

    At Port Iława in Poland, pilots and captains of massive ships train on 1-to-24 scale ship models: and I got to drive one.

  • S2023E50 Why use many streetlights when one will do?

    • November 27, 2023
    • YouTube

    The moonlight towers of Austin, Texas, are the last urban municipal lighting towers in the world: because before every street was wired to the grid, how else would you light up a city?

  • S2023E51 Why don't subtitles match dubbing?

    • December 4, 2023
    • YouTube

    Translation is really difficult.

  • S2023E52 A robot just swapped my electric car's battery

    • December 11, 2023
    • YouTube

    Nio is a Chinese auto maker that offers an alternative to charging: just swapping out the whole battery whenever you need it. I borrowed one of their cars.

  • S2023E53 Why the government drops flies on California

    • December 18, 2023
    • YouTube

    There's a good reason for it.

  • S2023E54 People are going to be angry about pylons.

    • December 25, 2023
    • YouTube

    Britain's power grid is turning inside-out, which means pylons are about to become a lot more controversial in Britain. At the National Grid Training Centre, I climbed one.

Season 2024