Sixty Symbols
@sixtysymbols
Physics and astronomy videos by @BradyHaran with experts from @UniofNottingham
ID: 133799038
http://www.sixtysymbols.com/ 16-04-2010 17:15:07
993 Tweet
18,18K Followers
41 Following
@sixtysymbols
Physics and astronomy videos by @BradyHaran with experts from @UniofNottingham
ID: 133799038
http://www.sixtysymbols.com/ 16-04-2010 17:15:07
993 Tweet
18,18K Followers
41 Following