Periodic Videos@periodicvideos·Dec 5, 2010not quite @RigelK - the silent technician in Sixty Symbols is George! http://tinyurl.com/37kh6hd
Brendan Zabarauskas@brendanzabReplying to @periodicvideosThanks to the University of Nottingham for all their videos. The are true gifts, inspiring us all around the world. @periodicvideos10:26 PM · Dec 5, 2010·Tweetie for Mac
