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Albert Einstein's Handwritten Letter With Famous Formula E=mc^2 Sold for $1.2Mln

© AP PhotoFamed physicist Albert Einstein is shown playing the violin, date and location unknown
Famed physicist Albert Einstein is shown playing the violin, date and location unknown - Sputnik International, 1920, 22.05.2021
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WASHINGTON (Sputnik) – The handwritten letter of great theoretical physicist Albert Einstein with his most famous formula E=mc^2 has been sold for $1,243,707, Boston-based RR Auction said.

The initial price for the letter stood at about $400,000.

The sold letter was written by Einstein to Polish American physicist Ludwik Silberstein, one of his critics, on October 26, 1946.

“Your question can be answered from the E=mc^2 formula, without any erudition,” the opening phrase of the letter says.

The formula defines the energy (E) as the product of mass (m) with the speed of light squared (c^2).

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