Nagasaki

On August 9, 1945, just over 2 1/2 pounds of plutonium was converted to energy 1650 feet over Nagasaki.

Two and a half pounds–about the weight of a 28 week premature newborn baby.

Yosuke Yamahata, A Japanese army photographer, took this picture the day after the Fat Man fell over Nagasaki.

More of Mr. Yamahata’s photography can be seen here.

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