Richard. P. Feynman was an American theoretical physicist who was widely regarded as the most brilliant, influential, and iconoclastic figure in his field in the post-World War II era. Caltech and The Feynman Lectures Website have posted anonline edition of The Feynman Lectures on Physics. Now, anyone with internet access and a web browser can enjoy reading a high quality up-to-date copy of Feynman's legendary lectures.
Thanks to frequent contributor Bruce for the link.