This is extra footage about VX. See our main video at: https://youtu.be/62fPW-5TR-M Professors Rob Stockman and Professor Martyn Poliakoff. See our Sarin video at: https://youtu.be/jozozH09XSs Support us on Patreon: https://www.patreon.com/periodicvideos All the elements: http://bit.ly/118elements 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 Additional filming on this video by Sean Riley. Join Brady's mailing list for updates and extra stuff --- http://eepurl.com/YdjL9