Today in 1966, 57 years ago: 87 meters underground, at the Nevada test field (102 km northwest of the city of Las Vegas), at 7:36 local time the United States detonates the Tangerine atomic bomb, 20 kilotons (the Hiroshima bomb generated 13 kt). This is the 476th of the 1129 bombs that the United States detonated between 1945 and 1992.

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