Wikipedia:POTD row/February 27, 2006

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Gun-type Nuclear weapon Gun-type Nuclear weapon

Although used occasionally in later experimental devices, this nuclear weapon design was used only once as a weapon, in Little Boy, because of the extreme danger of a misfire. A simple crash could drive the "bullet" into the "target" and release lethal radiation doses or even a full nuclear detonation.

Illustration credit: Fastfission
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