The Miracle Of The Levitating Slinky

Robert Krulwich — Tue, 11 Sep 2012 18:01:00 +0000

http://www.youtube.com/watch?v=eCMmmEEyOO0

http://www.youtube.com/watch?v=oKb2tCtpvNU

http://www.youtube.com/watch?v=uiyMuHuCFo4

Radiolab