Aerial view of Hiroshima depicts the terrific destructive force of the atomic bomb
By July 1945, the Allies' Manhattan Project had produced two types of atomic
Scientists first developed nuclear weapons technology during World War II. Atomic bombs have been used only twice in war—both times by the ...
had been receiving information about the atomic bomb program since fall 1941.
Truman, warned by some of his advisers that any attempt to invade Japan would result in horrific American casualties, ordered that the new weapon be used to ...
Leslie R. Groves, head of the Manhattan Project that built the first
At the point at which one of the neutrons produced by a fission will on ...
This information would then be relayed back to the atomic bomb carrier.
I think the attack would have been made on such and such beaches."
Official order, July 25, 1945, for atomic bombing of Japan.