The Story of Nagasaki

The Bombs

Little Boy was a relatively simple, uranium 235-based bomb, and was never tested before being exploded over Hiroshima.

Fat Man Bomb on Tinian

Fat Man, the Nagasaki bomb, was a more complex plutonium bomb and Manhattan Project scientists decided it needed to be tested. A prototype, code-named Gadget, was exploded at Alamogordo New Mexico, 110 miles southwest of Albuquerque, on July 16, 1945 during the now-famous Trinity test.

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