The speed of light is almost 300 million meters per second, but someone only needed $1.2 million for this letter. A handwritten letter by Albert Einstein that included his famous equation E=mc2 sold ...

A handwritten letter penned by Albert Einstein which includes his famous E = mc2 equation has fetched more than $1.2 million (£850,000) at auction. The letter is one of only four known documents ...

Believe it or not, but it has taken 103 years and the combined power of various of the world’s top supercomputers to prove Eintein’s biggest equation right, resolving e=mc2 at the scale of sub-atomic ...

Einstein's equation E=mc2 is as famous as the man himself. But what does it mean? E stands for energy. M stands for mass. C stands for the speed of light. The speed of light is 670,000,000 mph. And in ...

A letter written by Albert Einstein in which he writes out his famous E=mc2 equation has sold at auction for more than $1.2 million, about three times more than it was expected to get, Boston-based RR ...

A handwritten letter from theoretical physicist Albert Einstein featuring his famous E = mc2 equation has sold for over $1.2 million at an auction. Boston-based auction house RR Auction revealed on ...