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Developed first by the United States and proven with a massive detonation in 1952, the H-bomb consists of the release of massive energy when hydrogen atoms are fused together at very high temperature and pressure to form helium nuclei.  The scientists instrumental in its development were the Hungarian immigrant [[Edward Teller]] and Polish immigrant [[Stanislaw Ulam]].  The Soviet Union later developed a similar bomb independently, and its scientists claimed to have invented it independently of the American bomb.

Developed first by the United States and proven with a massive detonation in 1952, the H-bomb consists of the release of massive energy when hydrogen atoms are fused together at very high temperature and pressure to form helium nuclei.  The scientists instrumental in its development were the Hungarian immigrant [[Edward Teller]] and Polish immigrant [[Stanislaw Ulam]].  The Soviet Union later developed a similar bomb independently, and its scientists claimed to have invented it independently of the American bomb.