Burning iron is dropped into liquid oxygen. Raw footage (reactions 1-4): https://youtu.be/TcBog29fSbo Raw footage (reactions 5-8): https://youtu.be/tMYqgofSp0Y Reactions by Neil Barnes. Discussion by Professor Martyn Poliakoff. 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 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