Einstein’s Proof of E=mc²

Ever wonder how Einstein proved E=mc²? This is how. Pi day () 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. minutephysics is now on Google - And facebook - And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathanie