Search Results for: Joe-4

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The name given by the west to the Soviet Union's first test of a thermonuclear device. It was detonated on August 12, 1953. The yield was 400 kilotons.

Race for the Hydrogen Bomb: The Soviets' "Joe-4" Bomb Makes its MarkOpen link in new window | (
Timeline of the Nuclear Age: 1953Open link in new window | (

See Also:

Soviet Nuclear Weapons Program
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