(First time visitors to our site may wish to start by browsing our list of animations.)

Microsoft Research has just released a series of filmed lectures by Richard Feynman on the nature of physical laws. The Silverlight based player allows one to follow the lectures with a transcript, and also presents links to resources at relevant times. The first lecture ("Law of Gravitation") features NAAP's Planetary Orbit Simulator after Feynman discusses Kepler's laws and Newton's interpretation of them.

Microsoft Research is the same group that created WorldWide Telescope, a desktop planetarium program that allows one to navigate and take tours of a multitude of astronomical images.