Who couldn't use this? A basic introduction to Einstein's thinking – one that assumes no prior knowledge, just an open mind. In one short hour, Ramamurti Shankar (Professor of Physics & Applied Physics at Yale) breaks down Einstein's theories and formulas for a lay audience. If this whets your appetite, then you'll want to download Shankar's free course called The Fundamentals of Physics. You can download it here (iTunes - YouTube - Web Site), or find it in the Physics section of our big collection of Free Online Courses.

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