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Caltech and The Feynman Lectures Website are pleased to present this online 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.
...This edition has been designed for ease of reading on devices of any size or shape; text, figures and equations can all be zoomed without degradation.
...arguably the most popular physics book ever written, selling more than 1.5 million copies in English, and getting translated into a dozen languages.