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At 11:00 a.m. on 9 August 1945, Yamaguchi was describing the blast in Hiroshima to his supervisor, when the American bomber Bockscar dropped the Fat Man atomic bomb over the city. His workplace again put him 3 kilometres (1.9 mi) from ground zero, but this time he was unhurt by the explosion. [7]
The bunker is built to deflect a 30 megaton nuclear explosion as close as 1.2 miles (1.9 km). [14] Within a mountain tunnel are sets of 25-ton blast doors and another for the civil engineering department. The doors were built so that they can always be opened when needed.
Blast shelters deflect the blast wave from nearby explosions to prevent ear and internal injuries to people sheltering in the bunker. While frame buildings collapse from as little as 3 psi (20 kPa) of overpressure, blast shelters are regularly constructed to survive several hundred psi. This substantially decreases the likelihood that a bomb ...
The test took place in a 1,600 [21] to 2,000 ft [22] (500 to 600 m) horizontal tunnel in the shape of a hook. [22] The hook "was designed so explosive force will seal off the non-curved portion of tunnel nearest the detonation before gases and fission fragments can be vented around the curve of the tunnel's hook". [ 22 ]
Blast lung refers to severe pulmonary contusion, bleeding or swelling with damage to alveoli and blood vessels, or a combination of these. [6] It is the most common cause of death among people who initially survive an explosion. [7]
The Cold War ended in 1991, but the looming threat of nuclear attack lives on with more than 14,900 nuclear weapons wielded by nine nations.. A terrorist-caused nuclear detonation is one of 15 ...
The atomic bomb explosion generated a windstorm several kilometers wide that carried ash, dust, and debris over the mountain ranges surrounding Nagasaki. Approximately 20 minutes after the bombing, a black rain with the consistency of mud or oil came down carrying radioactive material for one to two hours before turning clear.
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