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 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 ...

BOSTON — A letter handwritten by Albert Einstein in which he writes out his famous E = mc2 equation has sold at auction for more than $1.2 million on Friday, about three times more than it was ...

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 ...

With the first explosions of atomic bombs, the world became witness to one of the most important and consequential principles in physics: Energy and mass, fundamentally speaking, are the same thing ...

A handwritten letter featuring the famous “E=mc2” equation from theoretical physicist Albert Einstein has resurfaced at auction, selling for $1,243,707 USD at RR Auction. The closing bid was a ...

With the first explosions of atomic bombs, the world became witness to one of the most important and consequential principles in physics: Energy and mass, fundamentally speaking, are the same thing ...