The professor receives a sample of heavy water - and tells an interesting story about it. More links and info in full description ↓↓↓ Sydney Pearson on IMDB: https://www.imdb.com/name/nm0669392/ Our original Heavy Water video: https://youtu.be/hUVzb0fzHsk Can you drink heavy water: https://youtu.be/fyK6kPi8k78 The Heroes of Telemark (film): https://amzn.to/3fKOztI Skis Against the Atom (book): https://amzn.to/3jD6vYz Videos on all 118 elements: http://bit.ly/118elements Support us on Patreon: https://www.patreon.com/periodicvideos 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 This episode was also generously supported by The Gatsby Charitable Foundation 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