Date: Mar 14, 2013 2:53 AM
Author: Jonathan Crabtree
Subject: Funny Pi Day video. At 3.14 mark, David Letterman realises what pi  means!

Is David Letterman an idiot or a comic genius?

David Letterman talks to Daniel Tammet about pi and how Daniel memorised it to 20,000 places.

http://www.youtube.com/watch?v=t2uRuFgZSDc

Happy Pi Day!

Jonathan Crabtree