The Einstein–Szilard letter was a letter written by Leo Szilard and signed by Albert Einstein on August 2, 1939, that was sent to President of the United States Franklin D. Roosevelt. Written by Szila
Leo Szilard was a Hungarian-born American physicist, biologist and inventor who made numerous important discoveries in nuclear physics and the biological sciences. He conceived the nuclear chain react
Szilard, c. 1915
Szilard and Norman Hilberry at the site of CP-1, at the University of Chicago, some years after the war. The building was demolished in 1957.