| S2013E01 | How photography connects us - David Griffin | January 1, 2013 YouTube | 15 |  | 
                                                    
                                | S2013E02 | Conserving our spectacular, vulnerable coral reefs - Joshua Drew | January 3, 2013 YouTube | 3 |  | 
                                                    
                                | S2013E03 | Detention or Eco Club: Choosing your future - Juan Martinez | January 4, 2013 | 10 |  | 
                                                    
                                | S2013E04 | On exploring the oceans - Robert Ballard | January 5, 2013 | 10 |  | 
                                                    
                                | S2013E05 | Tales of passion - Isabel Allende | January 6, 2013 | 10 |  | 
                                                    
                                | S2013E06 | Jessica Green and Karen Guillemin: You are your microbes | January 7, 2013 | 4 |  | 
                                                    
                                | S2013E07 | Colm Kelleher: How we see color | January 8, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E08 | Activation energy: Kickstarting chemical reactions - Vance Kite | January 9, 2013 | 10 |  | 
                                                    
                                | S2013E09 | Phenology and nature's shifting rhythms - Regina Brinker | January 10, 2013 | 10 |  | 
                                                    
                                | S2013E10 | Underwater astonishments - David Gallo | January 11, 2013 | 10 |  | 
                                                    
                                | S2013E11 | A plant's-eye view - Michael Pollan | January 12, 2013 | 10 |  | 
                                                    
                                | S2013E12 | How to find the true face of Leonardo - Siegfried Woldhek | January 13, 2013 | 10 |  | 
                                                    
                                | S2013E13 | What Aristotle and Joshua Bell can teach us about persuasion - Conor Neill | January 14, 2013 | 10 |  | 
                                                    
                                | S2013E14 | Questioning the universe - Stephen Hawking | January 14, 2013 | 10 |  | 
                                                    
                                | S2013E15 | How to defeat a dragon with math - Garth Sundem | January 15, 2013 | 10 |  | 
                                                    
                                | S2013E16 | Can we domesticate germs? - Paul Ewald | January 15, 2013 | 10 |  | 
                                                    
                                | S2013E17 | Write your story, change history - Brad Meltzer | January 16, 2013 | 10 |  | 
                                                    
                                | S2013E18 | The "bottom billion" - Paul Collier | January 16, 2013 | 10 |  | 
                                                    
                                | S2013E19 | Colm Kelleher: Is light a particle or a wave? | January 17, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E20 | Your genes are not your fate - Dean Ornish | January 17, 2013 | 10 |  | 
                                                    
                                | S2013E21 | Losing everything - David Hoffman | January 19, 2013 | 10 |  | 
                                                    
                                | S2013E22 | Digging for humanity's origins - Louise Leakey | January 20, 2013 | 10 |  | 
                                                    
                                | S2013E23 | Learning from past presidents - Doris Kearns Goodwin | January 21, 2013 | 10 |  | 
                                                    
                                | S2013E24 | Rapid prototyping Google Glass - Tom Chi | January 22, 2013 | 10 |  | 
                                                    
                                | S2013E25 | Network theory - Marc Samet | January 23, 2013 | 10 |  | 
                                                    
                                | S2013E26 | Slowing down time (in writing & film) - Aaron Sitze | January 24, 2013 | 10 |  | 
                                                    
                                | S2013E27 | Surviving a nuclear attack - Irwin Redlener | January 25, 2013 | 10 |  | 
                                                    
                                | S2013E28 | Do the green thing - Andy Hobsbawm | January 26, 2013 | 10 |  | 
                                                    
                                | S2013E29 | The coming neurological epidemic - Gregory Petsko | January 27, 2013 | 10 |  | 
                                                    
                                | S2013E30 | Parasite tales: The jewel wasp's zombie slave - Carl Zimmer | January 28, 2013 | 10 |  | 
                                                    
                                | S2013E31 | In on a secret? That's dramatic irony - Christopher Warner | January 29, 2013 | 10 |  | 
                                                    
                                | S2013E32 | Life of an astronaut - Jerry Carr | January 30, 2013 | 10 |  | 
                                                    
                                | S2013E33 | What if we could look inside human brains? - Moran Cerf | January 31, 2013 | 10 |  | 
                                                    
                                | S2013E34 | Earth's mass extinction - Peter Ward | February 1, 2013 | 10 |  | 
                                                    
                                | S2013E35 | Our loss of wisdom - Barry Schwartz | February 2, 2013 | 10 |  | 
                                                    
                                | S2013E36 | Our buggy moral code - Dan Ariely | February 3, 2013 | 10 |  | 
                                                    
                                | S2013E37 | How polarity makes water behave strangely - Christina Kleinberg | February 4, 2013 | 10 |  | 
                                                    
                                | S2013E38 | How did trains standardize time in the United States? - William Heuisler | February 5, 2013 | 10 |  | 
                                                    
                                | S2013E39 | Make robots smarter - Ayanna Howard | February 6, 2013 | 10 |  | 
                                                    
                                | S2013E40 | The historical audacity of the Louisiana Purchase - Judy Walton | February 7, 2013 | 10 |  | 
                                                    
                                | S2013E41 | Four principles for the open world - Don Tapscott | February 8, 2013 | 10 |  | 
                                                    
                                | S2013E42 | How bacteria "talk" - Bonnie Bassler | February 9, 2013 | 10 |  | 
                                                    
                                | S2013E43 | The world needs all kinds of minds - Temple Grandin | February 10, 2013 | 10 |  | 
                                                    
                                | S2013E44 | How Curiosity got us to Mars - Bobak Ferdowsi | February 11, 2013 | 10 |  | 
                                                    
                                | S2013E45 | Where we get our fresh water - Christiana Z. Peppard | February 12, 2013 | 10 |  | 
                                                    
                                | S2013E46 | Christian Rudder: Inside OKCupid: The math of online dating | February 13, 2013 YouTube | 7 |  | 
                                                    
                                | S2013E47 | Fresh water scarcity: An introduction to the problem - Christiana Z. Peppard | February 14, 2013 | 10 |  | 
                                                    
                                | S2013E48 | How I fell in love with a fish - Dan Barber | February 15, 2013 | 10 |  | 
                                                    
                                | S2013E49 | Science can answer moral questions - Sam Harris | February 16, 2013 | 10 |  | 
                                                    
                                | S2013E50 | Let's simplify legal jargon - Alan Siegel | February 18, 2013 | 10 |  | 
                                                    
                                | S2013E51 | Inventing the American presidency - Kenneth C. Davis | February 18, 2013 | 10 |  | 
                                                    
                                | S2013E52 | Distorting Madonna in Medieval art - James Earle | February 19, 2013 | 10 |  | 
                                                    
                                | S2013E53 | Gridiron physics: Scalars and vectors - Michelle Buchanan | February 20, 2013 | 10 |  | 
                                                    
                                | S2013E54 | Visualizing the world's Twitter data - Jer Thorp | February 21, 2013 | 10 |  | 
                                                    
                                | S2013E55 | What adults can learn from kids - Adora Svitak | February 22, 2013 | 10 |  | 
                                                    
                                | S2013E56 | Toward a science of simplicity - George Whitesides | February 22, 2013 | 10 |  | 
                                                    
                                | S2013E57 | Why I'm a weekday vegetarian - Graham Hill | February 22, 2013 | 10 |  | 
                                                    
                                | S2013E58 | Mosquitos, malaria and education - Bill Gates | February 22, 2013 | 10 |  | 
                                                    
                                | S2013E59 | Toy tiles that talk to each other - David Merrill | February 22, 2013 | 10 |  | 
                                                    
                                | S2013E60 | The El Sistema music revolution - Jose Antonio Abreu | February 22, 2013 | 10 |  | 
                                                    
                                | S2013E61 | How Benjamin Button got his face - Ed Ulbrich | February 22, 2013 | 10 |  | 
                                                    
                                | S2013E62 | How to restore a rainforest - Willie Smits | February 22, 2013 | 10 |  | 
                                                    
                                | S2013E63 | High-altitude wind energy from kites! - Saul Griffith | February 22, 2013 | 10 |  | 
                                                    
                                | S2013E64 | The danger of science denial - Michael Specter | February 23, 2013 | 10 |  | 
                                                    
                                | S2013E65 | How art gives shape to cultural change - Thelma Golden | February 24, 2013 | 10 |  | 
                                                    
                                | S2013E66 | Why are blue whales so enormous? - Asha de Vos | February 25, 2013 | 10 |  | 
                                                    
                                | S2013E67 | Insights into cell membranes via dish detergent - Ethan Perlstein | February 26, 2013 | 10 |  | 
                                                    
                                | S2013E68 | Beach Bodies (in spoken word) - David Fasanya and Gabriel Barralaga | February 27, 2013 | 10 |  | 
                                                    
                                | S2013E69 | Illuminating photography: From camera obscura to camera phone - Eva Timothy | February 28, 2013 | 10 |  | 
                                                    
                                | S2013E70 | A new ecosystem for electric cars - Shai Agassi | March 1, 2013 | 10 |  | 
                                                    
                                | S2013E71 | The business logic of sustainability - Ray Anderson | March 1, 2013 | 10 |  | 
                                                    
                                | S2013E72 | Could a Saturn moon harbor life? - Carolyn Porco | March 1, 2013 | 10 |  | 
                                                    
                                | S2013E73 | Supercharged motorcycle design - Yves Behar | March 1, 2013 | 10 |  | 
                                                    
                                | S2013E74 | The world's English mania - Jay Walker | March 1, 2013 | 10 |  | 
                                                    
                                | S2013E75 | Planning for the end of oil - Richard Sears | March 1, 2013 | 10 |  | 
                                                    
                                | S2013E76 | Does racism affect how you vote? - Nate Silver | March 2, 2013 | 10 |  | 
                                                    
                                | S2013E77 | The tribes we lead - Seth Godin | March 3, 2013 | 10 |  | 
                                                    
                                | S2013E78 | Bill Shillito: How to organize, add and multiply matrices | March 4, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E79 | The simple story of photosynthesis and food - Amanda Ooten | March 5, 2013 | 10 |  | 
                                                    
                                | S2013E80 | Visualizing hidden worlds inside your body - Dee Breger | March 6, 2013 | 10 |  | 
                                                    
                                | S2013E81 | The importance of focus - Richard St. John | March 6, 2013 | 10 |  | 
                                                    
                                | S2013E82 | Peggy Andover: The difference between classical and operant conditioning | March 7, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E83 | HIV and flu -- the vaccine strategy - Seth Berkley | March 8, 2013 | 10 |  | 
                                                    
                                | S2013E84 | How architecture helped music evolve - David Byrne | March 8, 2013 | 10 |  | 
                                                    
                                | S2013E85 | The pattern behind self-deception - Michael Shermer | March 8, 2013 | 10 |  | 
                                                    
                                | S2013E86 | How YouTube thinks about copyright - Margaret Gould Stewart | March 8, 2013 | 10 |  | 
                                                    
                                | S2013E87 | A 3D atlas of the universe - Carter Emmart | March 8, 2013 | 10 |  | 
                                                    
                                | S2013E88 | Fractals and the art of roughness - Benoit Mandelbrot | March 8, 2013 | 10 |  | 
                                                    
                                | S2013E89 | How state budgets are breaking US schools - Bill Gates | March 9, 2013 | 10 |  | 
                                                    
                                | S2013E90 | Working backward to solve problems - Maurice Ashley | March 11, 2013 | 10 |  | 
                                                    
                                | S2013E91 | How Mendel's pea plants helped us understand genetics - Hortensia Jiménez Díaz | March 12, 2013 | 10 |  | 
                                                    
                                | S2013E92 | What is verbal irony? - Christopher Warner | March 13, 2013 | 10 |  | 
                                                    
                                | S2013E93 | Cameron Paterson: The infamous and ingenious Ho Chi Minh Trail | March 14, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E94 | Printing a human kidney - Anthony Atala | March 15, 2013 | 10 |  | 
                                                    
                                | S2013E95 | The sound the universe makes - Janna Levin | March 15, 2013 | 10 |  | 
                                                    
                                | S2013E96 | The greatest TED Talk ever sold - Morgan Spurlock | March 15, 2013 | 10 |  | 
                                                    
                                | S2013E97 | The history of our world in 18 minutes - David Christian | March 15, 2013 | 10 |  | 
                                                    
                                | S2013E98 | On being wrong - Kathryn Schulz | March 15, 2013 | 10 |  | 
                                                    
                                | S2013E99 | 3 things I learned while my plane crashed - Ric Elias | March 15, 2013 | 10 |  | 
                                                    
                                | S2013E100 | Let's use video to reinvent education - Salman Khan | March 16, 2013 | 10 |  | 
                                                    
                                | S2013E101 | Social animal - David Brooks | March 17, 2013 | 10 |  | 
                                                    
                                | S2013E102 | The story behind the Boston Tea Party - Ben Labaree | March 18, 2013 | 10 |  | 
                                                    
                                | S2013E103 | Mark Changizi: Why do we see illusions? | March 20, 2013 YouTube | 7 |  | 
                                                    
                                | S2013E104 | How farming planted seeds for the Internet - Patricia Russac | March 21, 2013 | 10 |  | 
                                                    
                                | S2013E105 | Your elusive creative genius - Elizabeth Gilbert | March 22, 2013 | 10 |  | 
                                                    
                                | S2013E106 | Beware online "filter bubbles" - Eli Pariser | March 22, 2013 | 10 |  | 
                                                    
                                | S2013E107 | The hidden beauty of pollination - Louie Schwartzberg | March 22, 2013 | 10 |  | 
                                                    
                                | S2013E108 | Silk, the ancient material of the future - Fiorenzo Omenetto | March 22, 2013 | 10 |  | 
                                                    
                                | S2013E109 | The hidden power of smiling - Ron Gutman | March 22, 2013 | 10 |  | 
                                                    
                                | S2013E110 | Building a museum of museums on the web - Amit Sood | March 22, 2013 | 10 |  | 
                                                    
                                | S2013E111 | The lost art of democratic debate - Michael Sandel | March 23, 2013 | 10 |  | 
                                                    
                                | S2013E112 | Are we ready for neo-evolution? - Harvey Fineberg | March 24, 2013 | 10 |  | 
                                                    
                                | S2013E113 | Haptography: Digitizing our sense of touch - Katherine Kuchenbecker | March 25, 2013 | 10 |  | 
                                                    
                                | S2013E114 | Could the sun be good for your heart? - Richard Weller | March 25, 2013 | 10 |  | 
                                                    
                                | S2013E115 | Jeff Dekofsky: Euclid's puzzling parallel postulate | March 26, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E116 | Become a slam poet in five steps - Gayle Danley | March 27, 2013 | 10 |  | 
                                                    
                                | S2013E117 | Your brain on video games - Daphne Bavelier | March 27, 2013 | 10 |  | 
                                                    
                                | S2013E118 | Want to be happier? Stay in the moment - Matt Killingsworth | March 29, 2013 | 10 |  | 
                                                    
                                | S2013E119 | The weird, wonderful world of bioluminescence - Edith Widder | March 29, 2013 | 10 |  | 
                                                    
                                | S2013E120 | How we'll stop polio for good - Bruce Aylward | March 29, 2013 | 10 |  | 
                                                    
                                | S2013E121 | Making a car for blind drivers - Dennis Hong | March 29, 2013 | 10 |  | 
                                                    
                                | S2013E122 | Making sense of a visible quantum object - Aaron O'Connell | March 29, 2013 | 10 |  | 
                                                    
                                | S2013E123 | Building a dinosaur from a chicken - Jack Horner | March 29, 2013 | 10 |  | 
                                                    
                                | S2013E124 | Building the Seed Cathedral - Thomas Heatherwick | March 30, 2013 | 10 |  | 
                                                    
                                | S2013E125 | The mystery of chronic pain - Elliot Krane | March 31, 2013 | 10 |  | 
                                                    
                                | S2013E126 | Early forensics and crime-solving chemists - Deborah Blum | April 1, 2013 | 10 |  | 
                                                    
                                | S2013E127 | Mysteries of vernacular: Clue - Jessica Oreck | April 1, 2013 | 10 |  | 
                                                    
                                | S2013E128 | Kids need structure - Colin Powell | April 1, 2013 | 10 |  | 
                                                    
                                | S2013E129 | Who is Alexander von Humboldt? - George Mehler | April 2, 2013 | 10 |  | 
                                                    
                                | S2013E130 | Mysteries of vernacular: Pants - Jessica Oreck | April 2, 2013 | 10 |  | 
                                                    
                                | S2013E131 | Networking for the networking averse - Lisa Green Chau | April 3, 2013 | 10 |  | 
                                                    
                                | S2013E132 | Mysteries of vernacular: Assassin - Jessica Oreck | April 3, 2013 | 10 |  | 
                                                    
                                | S2013E133 | The future of lying - Jeff Hancock | April 3, 2013 | 10 |  | 
                                                    
                                | S2013E134 | A call to invention: DIY speaker edition - William Gurstelle | April 4, 2013 | 10 |  | 
                                                    
                                | S2013E135 | Mysteries of vernacular: Hearse - Jessica Oreck | April 4, 2013 | 10 |  | 
                                                    
                                | S2013E136 | Mysteries of vernacular: Noise - Jessica Oreck | April 5, 2013 | 10 |  | 
                                                    
                                | S2013E137 | Why it pays to work hard - Richard St. John | April 5, 2013 | 10 |  | 
                                                    
                                | S2013E138 | The power of passion - Richard St. John | April 5, 2013 | 10 |  | 
                                                    
                                | S2013E139 | 8 traits of successful people - Richard St. John | April 5, 2013 | 10 |  | 
                                                    
                                | S2013E140 | Doodlers, unite! - Sunni Brown | April 5, 2013 | 10 |  | 
                                                    
                                | S2013E141 | Unintended consequences - Edward Tenner | April 5, 2013 | 10 |  | 
                                                    
                                | S2013E142 | Try something new for 30 days - Matt Cutts | April 5, 2013 | 10 |  | 
                                                    
                                | S2013E143 | A Rosetta Stone for the Indus script - Rajesh Rao | April 5, 2013 | 10 |  | 
                                                    
                                | S2013E144 | Different ways of knowing - Daniel Tammet | April 5, 2013 | 10 |  | 
                                                    
                                | S2013E145 | A light switch for neurons - Ed Boyden | April 6, 2013 | 10 |  | 
                                                    
                                | S2013E146 | Healthier men, one moustache at a time - Adam Garone | April 7, 2013 | 10 |  | 
                                                    
                                | S2013E147 | Self-assembly: The power of organizing the unorganized - Skylar Tibbits | April 8, 2013 | 10 |  | 
                                                    
                                | S2013E148 | The strange politics of disgust - David Pizarro | April 8, 2013 | 10 |  | 
                                                    
                                | S2013E149 | Tom Whyntie: The beginning of the universe for beginners | April 9, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E150 | Bill Shribman: What cameras see that our eyes don't | April 10, 2013 YouTube | 3 |  | 
                                                    
                                | S2013E151 | What's a snollygoster? A short lesson in political speak - Mark Forsyth | April 10, 2013 | 10 |  | 
                                                    
                                | S2013E152 | How is power divided in the United States government? - Belinda Stutzman | April 12, 2013 | 10 |  | 
                                                    
                                | S2013E153 | Less stuff, more happiness - Graham Hill | April 12, 2013 | 10 |  | 
                                                    
                                | S2013E154 | The quest to understand consciousness - Antonio Damasio | April 12, 2013 | 10 |  | 
                                                    
                                | S2013E155 | The Earth is full - Paul Gilding | April 12, 2013 | 10 |  | 
                                                    
                                | S2013E156 | We need to talk about an injustice - Bryan Stevenson | April 12, 2013 | 10 |  | 
                                                    
                                | S2013E157 | Why I must speak out about climate change - James Hansen | April 12, 2013 | 10 |  | 
                                                    
                                | S2013E158 | A future beyond traffic gridlock - Bill Ford | April 13, 2013 | 10 |  | 
                                                    
                                | S2013E159 | Every city needs healthy honey bees - Noah Wilson-Rich | April 14, 2013 | 10 |  | 
                                                    
                                | S2013E160 | Colm Kelleher: What is Zeno's Dichotomy Paradox? | April 15, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E161 | How to solve traffic jams - Jonas Eliasson | April 15, 2013 | 10 |  | 
                                                    
                                | S2013E162 | The magic of Vedic math - Gaurav Tekriwal | April 16, 2013 | 10 |  | 
                                                    
                                | S2013E163 | How to live to be 100+ - Dan Buettner | April 17, 2013 | 10 |  | 
                                                    
                                | S2013E164 | How does an atom-smashing particle accelerator work? - Don Lincoln | April 18, 2013 | 10 |  | 
                                                    
                                | S2013E165 | Mysteries of vernacular: Miniature - Jessica Oreck | April 19, 2013 | 10 |  | 
                                                    
                                | S2013E166 | Connected, but alone? - Sherry Turkle | April 19, 2013 | 10 |  | 
                                                    
                                | S2013E167 | How can technology transform the human body? - Lucy McRae | April 19, 2013 | 10 |  | 
                                                    
                                | S2013E168 | How do we heal medicine? - Atul Gawande | April 19, 2013 | 10 |  | 
                                                    
                                | S2013E169 | Is our universe the only universe? - Brian Greene | April 19, 2013 | 10 |  | 
                                                    
                                | S2013E170 | A giant bubble for debate - Liz Diller | April 19, 2013 | 10 |  | 
                                                    
                                | S2013E171 | From mach-20 glider to humming bird drone - Regina Dugan | April 20, 2013 | 10 |  | 
                                                    
                                | S2013E172 | Dare to educate Afghan girls - Shabana Basij-Rasikh | April 21, 2013 | 10 |  | 
                                                    
                                | S2013E173 | String theory and the hidden structures of the universe - Clifford Johnson | April 22, 2013 | 10 |  | 
                                                    
                                | S2013E174 | Hey science teachers -- make it fun - Tyler DeWitt | April 22, 2013 | 10 |  | 
                                                    
                                | S2013E175 | Making sense of how life fits together - Bobbi Seleski | April 23, 2013 | 10 |  | 
                                                    
                                | S2013E176 | How much does a video weigh? - Michael Stevens of Vsauce | April 24, 2013 | 10 |  | 
                                                    
                                | S2013E177 | Let's teach kids to code - Mitch Resnick | April 24, 2013 | 10 |  | 
                                                    
                                | S2013E178 | The search for other Earth-like planets - Olivier Guyon | April 25, 2013 | 10 |  | 
                                                    
                                | S2013E179 | Pavlovian reactions aren't just for dogs - Benjamin N. Witts | April 26, 2013 | 10 |  | 
                                                    
                                | S2013E180 | Tracking the trackers - Gary Kovacs | April 26, 2013 | 10 |  | 
                                                    
                                | S2013E181 | Music and emotion through time - Michael Tilson Thomas | April 26, 2013 | 10 |  | 
                                                    
                                | S2013E182 | Feats of memory anyone can do - Joshua Foer | April 26, 2013 | 10 |  | 
                                                    
                                | S2013E183 | 404, the story of a page not found - Renny Gleeson | April 26, 2013 | 10 |  | 
                                                    
                                | S2013E184 | The optimism bias - Tali Sharot | April 26, 2013 | 10 |  | 
                                                    
                                | S2013E185 | A 40-year plan for energy - Amory Lovins | April 27, 2013 | 10 |  | 
                                                    
                                | S2013E186 | Pool medical patents, save lives - Ellen 't Hoen | April 28, 2013 | 10 |  | 
                                                    
                                | S2013E187 | A host of heroes - April Gudenrath | April 29, 2013 | 10 |  | 
                                                    
                                | S2013E188 | The dance of the dung beetle - Marcus Byrne | April 29, 2013 | 10 |  | 
                                                    
                                | S2013E189 | How do you know whom to trust? - Ram Neta | April 30, 2013 | 10 |  | 
                                                    
                                | S2013E192 | Carl Zimmer: How did feathers evolve? | May 2, 2013 YouTube | 3 |  | 
                                                    
                                | S2013E193 | James Gillies: Dark matter: The matter we can't see | May 3, 2013 YouTube | 6 |  | 
                                                    
                                | S2013E196 | Rolf Landua: What happened to antimatter? | May 3, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E204 | Strange answers to the psychopath test - Jon Ronson | May 7, 2013 YouTube | 18 |  | 
                                                    
                                | S2013E205 | How a fly flies - Michael Dickinson | May 8, 2013 YouTube | 16 |  | 
                                                    
                                | S2013E215 | A girl who demanded school - Kakenya Ntaiya | May 13, 2013 YouTube | 15 |  | 
                                                    
                                | S2013E216 | Ray Laurence: Four sisters in Ancient Rome | May 14, 2013 YouTube | 9 |  | 
                                                    
                                | S2013E217 | Leslie Kenna: The brilliance of bioluminescence | May 15, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E229 | David J. Malan: What's an algorithm? | May 20, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E232 | George Zaidan: What is fat? | May 22, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E242 | Looks aren't everything. Believe me, I'm a model - Cameron Russell | May 26, 2013 YouTube | 10 |  | 
                                                    
                                | S2013E243 | Ron Shaneyfelt: Is space trying to kill us? | May 28, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E246 | Brian Jones: What on Earth is spin? | May 29, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E248 | K. Erica Dodge: Gyotaku: The ancient Japanese art of printing fish | May 30, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E273 | Richard E. Cytowic: What color is Tuesday? Exploring synesthesia | June 10, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E312 | How big is the ocean? - Scott Gass | June 24, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E313 | Marjee Chmiel and Trevor Owens: Is there a center of the universe? | June 25, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E323 | Joy Lin: If superpowers were real: Invisibility | June 27, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E324 | Joy Lin: If superpowers were real: Immortality | June 27, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E325 | Joy Lin: If superpowers were real: Body mass | June 27, 2013 YouTube | 7 |  | 
                                                    
                                | S2013E326 | Joy Lin: If superpowers were real: Flight | June 28, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E327 | Joy Lin: If superpowers were real: Super speed | June 28, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E328 | Joy Lin: If superpowers were real: Super strength | June 28, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E352 | Dr. Matt J. Carlson: Free falling in outer space | July 6, 2013 YouTube | 3 |  | 
                                                    
                                | S2013E354 | 4 lessons from robots about being human - Ken Goldberg | July 7, 2013 YouTube | 17 |  | 
                                                    
                                | S2013E355 | Alex Gendler: Myths and misconceptions about evolution | July 8, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E357 | Reynaldo Lopes: The infinite life of pi | July 10, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E372 | Animation basics: The optical illusion of motion - TED-Ed | July 13, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E373 | What we learned from 5 million books - Erez Lieberman Aiden and Jean-Baptiste Michel | July 14, 2013 YouTube | 14 |  | 
                                                    
                                | S2013E383 | Tim Hansen: How to read music | July 18, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E389 | Ultrasound surgery -- healing without cuts - Yoav Medan | July 19, 2013 YouTube | 16 |  | 
                                                    
                                | S2013E390 | John McWhorter: A brief history of plural word...s | July 22, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E394 | Ami Angelowicz: The terrors of sleep paralysis | July 25, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E467 | Peter Mende-Siedlecki: Should you trust your first impression? | August 15, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E472 | The Arctic vs. the Antarctic - Camille Seaman | August 19, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E544 | The Higgs Field, explained - Don Lincoln | August 27, 2013 | 10 |  | 
                                                    
                                | S2013E545 | Michael Molina: What is déjà vu? What is déjà vu? | August 28, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E565 | Andrew Vanden Heuvel: The moon illusion | September 3, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E570 | Brad Troeger: What is love? | September 9, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E577 | Lucianne Walkowicz: Light waves, visible and invisible | September 19, 2013 YouTube | 6 |  | 
                                                    
                                | S2013E578 | Aatish Bhatia: The physics of human sperm vs. the physics of the sperm whale | September 23, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E580 | John McWhorter: Are Elvish, Klingon, Dothraki and Na'vi real languages? | September 26, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E581 | Amanda Mattes: Kabuki: The people's dramatic art | September 30, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E582 | Addison Anderson: The most groundbreaking scientist you've never heard of | October 1, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E588 | George Zaidan and Charles Morton: The uncertain location of electrons | October 14, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E600 | Claudia Aguirre: Why is yawning contagious? | November 7, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E605 | Stephanie Warren: The chemistry of cookies | November 19, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E606 | Mysteries of vernacular: Lady - Jessica Oreck and Rachael Teel | November 21, 2013 YouTube | 2 |  | 
                                                    
                                | S2013E607 | Mysteries of vernacular: Yankee - Jessica Oreck and Rachael Teel | November 26, 2013 YouTube | 2 |  | 
                                                    
                                | S2013E608 | Rose Eveleth: The loathsome lethal mosquito | December 2, 2013 YouTube | 3 |  | 
                                                    
                                | S2013E622 | Renée Hlozek: The death of the universe | December 12, 2013 YouTube | 5 |  | 
                                                    
                                | S2013E625 | Rose Eveleth: How do we smell? season finale | December 19, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E626 | Mysteries of vernacular: Odd - Jessica Oreck and Rachael Teel | December 5, 2013 | 10 |  | 
                                                    
                                | S2013E627 | How photography connects us - David Griffin | January 1, 2013 | 10 |  | 
                                                    
                                | S2013E628 | Conserving our spectacular, vulnerable coral reefs - Joshua Drew | January 3, 2013 | 10 |  | 
                                                    
                                | S2013E629 | You are your microbes - Jessica Green and Karen Guillemin | January 7, 2013 | 10 |  | 
                                                    
                                | S2013E630 | How we see color - Colm Kelleher | January 8, 2013 | 10 |  | 
                                                    
                                | S2013E631 | Is light a particle or a wave? - Colm Kelleher | January 17, 2013 | 10 |  | 
                                                    
                                | S2013E632 | Mysteries of vernacular: Odd - Jessica Oreck and Rachael Teel | December 5, 2013 | 10 |  | 
                                                    
                                | S2013E633 | Inside OKCupid: The math of online dating - Christian Rudder | February 13, 2013 | 10 |  | 
                                                    
                                | S2013E634 | How to organize, add and multiply matrices - Bill Shillito | March 4, 2013 | 10 |  | 
                                                    
                                | S2013E635 | The difference between classical and operant conditioning - Peggy Andover | March 7, 2013 | 10 |  | 
                                                    
                                | S2013E636 | The infamous and ingenious Ho Chi Minh Trail - Cameron Paterson | March 14, 2013 | 10 |  | 
                                                    
                                | S2013E637 | Dear Subscribers | March 19, 2013 | 10 |  | 
                                                    
                                | S2013E638 | Why do we see illusions? - Mark Changizi | March 20, 2013 | 10 |  | 
                                                    
                                | S2013E639 | Euclid's puzzling parallel postulate - Jeff Dekofsky | March 26, 2013 | 10 |  | 
                                                    
                                | S2013E640 | TED-Ed YouTube Channel Teaser | April 2, 2013 | 10 |  | 
                                                    
                                | S2013E641 | The beginning of the universe, for beginners - Tom Whyntie | April 9, 2013 | 10 |  | 
                                                    
                                | S2013E642 | What cameras see that our eyes don't - Bill Shribman | April 10, 2013 | 10 |  | 
                                                    
                                | S2013E643 | What is Zeno's Dichotomy Paradox? - Colm Kelleher | April 15, 2013 | 10 |  | 
                                                    
                                | S2013E644 | Exciting news from TED-Ed... | April 23, 2013 YouTube | 2 |  | 
                                                    
                                | S2013E645 | How photography connects us - David Griffin | January 1, 2013 | 10 |  | 
                                                    
                                | S2013E646 | Conserving our spectacular, vulnerable coral reefs - Joshua Drew | January 3, 2013 | 10 |  | 
                                                    
                                | S2013E647 | Is space trying to kill us? - Ron Shaneyfelt | May 28, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E648 | A brief history of plural word...s - John McWhorter season finale | July 22, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E649 | You are your microbes - Jessica Green and Karen Guillemin | January 7, 2013 | 10 |  | 
                                                    
                                | S2013E650 | How we see color - Colm Kelleher | January 8, 2013 | 10 |  | 
                                                    
                                | S2013E651 | Is light a particle or a wave? - Colm Kelleher | January 17, 2013 | 10 |  | 
                                                    
                                | S2013E652 | Inside OKCupid: The math of online dating - Christian Rudder | February 13, 2013 | 10 |  | 
                                                    
                                | S2013E653 | How to organize, add and multiply matrices - Bill Shillito | March 4, 2013 | 10 |  | 
                                                    
                                | S2013E654 | The difference between classical and operant conditioning - Peggy Andover | March 7, 2013 | 10 |  | 
                                                    
                                | S2013E655 | The infamous and ingenious Ho Chi Minh Trail - Cameron Paterson | March 14, 2013 | 10 |  | 
                                                    
                                | S2013E656 | Dear Subscribers | March 19, 2013 | 10 |  | 
                                                    
                                | S2013E657 | Why do we see illusions? - Mark Changizi | March 20, 2013 | 10 |  | 
                                                    
                                | S2013E658 | Euclid's puzzling parallel postulate - Jeff Dekofsky | March 26, 2013 | 10 |  | 
                                                    
                                | S2013E659 | TED-Ed YouTube Channel Teaser | April 2, 2013 | 10 |  | 
                                                    
                                | S2013E660 | The beginning of the universe, for beginners - Tom Whyntie | April 9, 2013 | 10 |  | 
                                                    
                                | S2013E661 | What cameras see that our eyes don't - Bill Shribman | April 10, 2013 | 10 |  | 
                                                    
                                | S2013E662 | What is Zeno's Dichotomy Paradox? - Colm Kelleher | April 15, 2013 | 10 |  | 
                                                    
                                | S2013E663 | Exciting news from TED-Ed... | April 23, 2013 YouTube | 2 |  | 
                                                    
                                | S2013E664 | Is space trying to kill us? - Ron Shaneyfelt | May 28, 2013 YouTube | 4 |  | 
                                                    
                                | S2013E665 | A brief history of plural word...s - John McWhorter season finale | July 22, 2013 YouTube | 4 |  |