The UK's new £5 bank note - made of polymer rather than paper - gets the "chemistry treatment". Lots of raw footage: https://youtu.be/KUjh_z1A_RQ Featuring Professor Sir Martyn Poliakoff and Neil Barnes. Gun cotton: https://youtu.be/38w2-NCdtio Gold vault: https://youtu.be/CTtf5s2HFkA Film by Brady Haran Music by Henrik Johansson Support us on Patreon: https://www.patreon.com/periodicvideos Discuss on Brady's subreddit: https://redd.it/63s3xi With thanks to the Garfield Weston Foundation More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://bit.ly/NottChem Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's Blog: http://www.bradyharanblog.com Join Brady's mailing list for updates and extra stuff --- http://eepurl.com/YdjL9 (*) According to the Bank of England, under the Currency & Banknotes Act 1928 it is illegal to deface our banknotes (by printing, writing or impressing upon them words, letters or figures, etc.), although the question of whether or not to prosecute in individual cases is up to the police and the courts. More on the new five pound note here: http://www.thenewfiver.co.uk