'Fat Man' was the codename for the type of atomic bomb that was detonated over the Japanese city of Nagasaki by the United States on 9 August 1945. It was the second of the only two nuclear weapons ever used in warfare, the first being 'Little Boy', and its detonation marked the third ever man-made nuclear explosion in history.
. It was built by scientists and engineers at Los Alamos Laboratory using plutonium from the Hanford Site and dropped from the Boeing B-29 Superfortress Bockscar.
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Album / Universal Images Group / Pictures From History