Image: Thin Man plutonium gun bomb casings

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Description: Casings for the "Thin Man" plutonium gun design weapons being developed during the Manhattan Project as part of Project Alberta at Wendover Field, Utah (additional "Fat Man" test casings can be seen in the background as well). The plutonium gun design was eventually abandoned as infeasible, as the spontaneous fission rate of reactor-bred plutonium was much higher than expected.
Title: Thin Man plutonium gun bomb casings
Credit: Immediate source: John Coster-Mullen, Atom Bombs: The Top Secret Inside Story of Little Boy and Fat Man (self published, 2005).[1] Ultimate source: Los Alamos/Manhattan Project
Author: U.S. Government employee.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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