What have we been watching?

http://www.youtube.com/watch?v=Rog5i2n1QVs&feature=related
Great video on Leonardo's life!

http://www.youtube.com/watch?v=DSsGRfCqN2s
Great video on Leonardo's curiosity and inventions and on the role Phi plays in his work.

http://www.youtube.com/watch?v=58bPQG_SrHg&feature=related
Great video on a recently discovered painting.