The Beginning or the End is a 1947 American docudrama film about the development of the atomic bomb in World War II, directed by Norman Taurog, starring Brian Donlevy, Robert Walker, and Tom Drake, an
1947 theatrical poster
MGM camera crew at the K-25 gaseous diffusion plant, Oak Ridge, Tennessee, in July 1946
The mushroom cloud over Hiroshima after the dropping of Little Boy
William Sterling "Deak" Parsons was an American naval officer who worked as an ordnance expert on the Manhattan Project during World War II. He is best known for being the weaponeer on the Enola Gay,
Parsons c. 1946–1953
Naval Research Laboratory complex on the Potomac River in Washington, DC
Cut away diagram of the proximity fuze Mark 53
Captain Parsons on Tinian in 1945