The most destructive part of the blast was the misty cloud of radioactive water. (Photo: U.S. Army Photographic Signal Corps)
Seventy years ago, on July 26, 1946, the U.S. military tried a new type of nuclear test.
A joint Army/Navy task force had suspended a nuclear device, oddly named Helen of Bikini, 90 feet below the surface of the water, in the middle of Bikini Atoll, one of the isolated rings of coral and land that make up the Marshall Islands. Arrayed around the 21-kiloton bomb were…
Source: 70 Years Ago, the U.S. Military Set Off a Nuke Underwater, And It Went Very Badly | Atlas Obscura
First Night History 
That black and white photo in the article is fascinating and terrifying at the same time. And to think the modern weapons are hundreds of times more powerful. I wonder if they have any real idea about the risks of ‘playing’ with these things?
Best wishes, Pete.
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I doubt it.
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