See all our multiverse videos: http://bit.ly/MultiverseVids Dr Tony Padilla here discusses Max Tegmark's four classes of Multiverse. Coin randomness (Numberphile): https://www.youtube.com/watch?v=AYnJv68T3MM Ed playing with snow at CERN: https://www.youtube.com/watch?v=MADzbn_EDdo Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://bit.ly/NottsPhysics Sixty Symbols videos by Brady Haran