Six not-so-easy pieces : Einstein's relativity, symmetry, and space-time / Richard P. Feynman ; with Robert B. Leighton and Matthew Sands ; introduction by Roger Penrose.
Six lectures, all regarding the most revolutionary discovery in twentieth-century physics: Einstein's Theory of Relativity. No one--not even Einstein himself--explained these difficult, anti-intuitive concepts more clearly, or with more verve and gusto, than Feynman.
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