An extensive video about Californium, which reportedly costs up to $27m per gram. We go to where it's made in Oak Ridge, Tennessee. More links and info in full description ↓↓↓ This video features Professor Martyn Poliakoff at the University of Nottingham. And Julie Ezold and Rose Boll at the Oak Ridge National Laboratory. Oak Ridge National Laboratory: https://www.ornl.gov/ Also thanks to Andrew Gaunt for providing photos relating to the paper "Isolation and characterization of a californium metallocene": https://www.nature.com/articles/s41586-021-04027-8 Thanks to The Royal Society of Chemistry for supporting this episode: https://www.rsc.org/ 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