Regarding an earlier post on iTunes University - name one other time in history when physics professors could be come rock stars at 71 years of age. Check out this article from the New York Times, which you should be reading anyway as a part of your daily regimen of brain exercises. You're doing them, right? I love the part about him getting fan mail from 17 year olds.
CAMBRIDGE, Mass. — Walter H. G. Lewin, 71, a physics professor, has long had a cult following at M.I.T. and he has now emerged as an international Internet guru, thanks to the global classroom the institute created to spread knowledge through cyberspace....(more).