A ‘button’ of bomb-grade uranium

buttonA “button” of bomb-grade uranium, which reportedly weighs a little more than 8 pounds. (Y-12 photo) 

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About Frank Munger

Senior Writer Frank Munger covers the Dept. of Energy's Oak Ridge facilities and many related topics — nuclear weapons, nuclear waste and other things nuclear, environmental cleanup and science of all sorts. Atomic City Underground is, first and foremost, a news blog, but there's room for analysis, opinion and random thoughts that have no place else to go.