Microsoft has put the Richard Feynman Messenger Series of lectures online, and they're pretty amazing to watch. I'd never actually seen video of a Feynman lecture, but I've had a soft spot for him for a while. When I graduated high school, my physics teacher, who I liked a lot, gave me an old set of the Feynman Lectures on Physics she found cleaning out a lab closet, and I credit Feynman's books with drawing me into the sciences in the first place.
They're entertaining on a number of levels, and you probably won't even get in trouble for watching them at work!
(via the borg)
