A global teacher of 1,516 lessons and counting

From a tiny closet in Mountain View, Calif., Sal Khan is educating the globe for free. His 1,516 videotaped mini-lectures -- on topics ranging from simple addition to vector calculus and Napoleonic campaigns -- are transforming ...

On the Net: College too expensive? Try YouTube

(AP) -- It might seem counterintuitive to look for higher education alongside Avril Lavigne music videos, but the video-sharing site has become a major reservoir of college content.

Famous Feynman lectures put online with free access

(Phys.org) —Back in the early sixties, physicist Richard Feynman gave a series of lectures on physics to first year students at Caltech—those lectures were subsequently put into print and made into text books, authored ...

3 Questions: Why Richard Feynman's lectures still mesmerize

In 1964, physicist Richard Feynman delivered a series of lectures titled “On the Nature of Physical Law.” Feynman delivered these seven one-hour lectures at Cornell in 1964, and the BBC taped them. Microsoft, which ...

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