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A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs , a more compact size, a lower mass, or a combination of these benefits.
The hydrogen bomb primarily has 2 units: a nuclear bomb, which was the primary unit, and a secondary energy unit. The first stage of the hydrogen bomb resembled the layer-cake design, except the main difference is that the initiation is carried out by a nuclear device, rather than a conventional explosive. [ 10 ]
One of many possible fallout patterns mapped by the United States Federal Emergency Management Agency that could occur during a nuclear war. (Based on 1988 data.) (Based on 1988 data.) The United States government, often the Office of Civil Defense in the Department of Defense , provided guides to fallout protection in the 1960s, frequently in ...
The fireball created by the explosion had a maximum radius of 2.9 to 3.3 km (1.8 to 2.1 mi). [20] [21] [22] The maximum radius was reached several seconds after the detonation, during which the hot fireball lifted up due to buoyancy. While still relatively close to the ground, the fireball had yet to reach its maximum dimensions and was thus ...
North Korea's claim of a successful H-bomb test marks a big step in its long-stated goal of developing a nuclear missile that puts the U.S. within range. Possible two-stage hydrogen bomb seen ...
After Truman ordered the crash program to develop the hydrogen bomb in January 1950, the Boston Daily Globe published a cutaway description of a hypothetical hydrogen bomb with the caption Artist's conception of how H-bomb might work using atomic bomb as a mere "trigger" to generate enough heat to set up the H-bomb's "thermonuclear fusion" process.
Many hypothetical doomsday devices are based on salted hydrogen bombs creating large amounts of nuclear fallout.. A doomsday device is a hypothetical construction — usually a weapon or weapons system — which could destroy all life on a planet, particularly Earth, or destroy the planet itself, bringing "doomsday", a term used for the end of planet Earth.
While nuclear weapons testing did not produce scenarios like nuclear winter as a result of a scenario of a concentrated number of nuclear explosions in a nuclear holocaust, the thousands of tests, hundreds being atmospheric, did nevertheless produce a global fallout that has peaked in 1963 (the Bomb pulse), reaching levels of about 0.15 mSv per ...