Continues a series of occasional science videos from the South Pole. See more at: http://bit.ly/Antarctica_SS More links and info below ↓ ↓ ↓ Help us make more videos via Patreon: https://www.patreon.com/sixtysymbols Denis Barkats filmed these for us during his stay at the South Pole in the summer 2015/16. Edit by James Hennessy. South Pole ice core: http://spicecore.org/ Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/sixtysymbols This project features scientists from The University of Nottingham http://bit.ly/NottsPhysics Sixty Symbols videos by Brady Haran http://www.bradyharanblog.com Email list: http://eepurl.com/YdjL9