The Grable shot of Operation Upshot-Knothole - the first and only nuclear artillery shell ever fired as part of the United States’ nuclear weapons testing program. Its yield was just under that of the Little Boy atomic bomb. May 1953

National Nuclear Security Administration Nevada Site Office Photo Library

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    “I’ll teach those darned kids to play in my yard!”
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    I dont like this!!!
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    I love the footage of this. Quite disturbing and ominous…
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