Einstein's Proof of E=mc²

Ever wonder how Einstein proved E=mc²? This is how.

Pi day (3.14) is Albert Einstein's Birthday! To celebrate, we'll explain 4 of his most groundbreaking papers from 1905, when he was just 26 years old.

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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

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https://www.youtube.com/watch?v=hW7DW9NIO9M