Magna Carta of modern physics
Albert Einstein SP Books, 2019 80 pages, ISBN 979-10-95457-05-3
Einstein wrote in late April 1925 to his wife, Elsa, “and thank you for doing me this favor of love.” Elsa had solved a problem that her famous husband, who was then travelling in South America, had been unable to solve: what to do with the original manuscript of his magnum opus, “The Foundation of the General Theory of Relativity”. At the time,
