Nobel Prize Winner Speaks: Dr. Feynman and Project Tuva

These videos from the early days of television, although as I recall it seemed like leading edge stuff. If you want to hear Dr. Feynman speak about Gravity, this is the video for you.

http://research.microsoft.com/apps/tools/tuva/#data=4%7C6b89dded-3eb8-4fa4-bbcd-7c69fe78ed0c%7C%7C

The video is searchable, which is interesting, but the video is awesome and one I watch frequently.