We're on Facebook at http://www.facebook.com/sixtysymbols Dropping metal balls into granular glass beads. Featuring Professor Roger Bowley. Destin's video: http://youtu.be/-XNDM4eAn1U Slow Mo Chem: http://bit.ly/chemslomo First comment: http://youtu.be/CmRh9tFYC68 Visit our website at http://www.sixtysymbols.com/ And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://bit.ly/bradychannels