Letter with the most unknown equations. Einstein’s manuscript has cost millions
Albert Einstein’s letter, in which he used his most popular equation, was auctioned for $ 1.2 million (25 million crowns). | photo: Facebook RR Auction – <!—-> Vydraen’s letter was the only case where the physical equation got into a private collection. It was only recently published, said the Boston auction with RR Auction, which … Read more