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Castle Bravo was the first in a series of high-yield thermonuclear weapon design tests conducted by the United States at Bikini Atoll, Marshall Islands, as part of Operation Castle. Detonated on March 1, 1954, the device remains the most powerful nuclear device ever detonated by the United States and the first lithium deuteride -fueled ...
Operation Castle was an unqualified success for the implementation of dry fuel devices. The Bravo design was quickly weaponized and is suspected to be the progenitor of the Mk-21 gravity bomb. The Mk-21 design project began on 26 March 1954 (just three weeks after Bravo ), with production of 275 weapons beginning in late 1955.
The cover to the Project 4.1 Final Report, "Study of Response of Human Beings Accidentally Exposed to Significant Fallout Radiation" Project 4.1 was the designation for a medical study and experimentation conducted by the United States of those residents of the Marshall Islands exposed to radioactive fallout from the 1 March 1954 Castle Bravo nuclear test at Bikini Atoll, which had an ...
The second series of tests in 1954 was codenamed Operation Castle. The first detonation was Castle Bravo, which tested a new design utilizing a dry-fuel thermonuclear bomb. It was detonated at dawn on March 1, 1954. Scientists miscalculated: the 15 Mt of TNT nuclear explosion far exceeded the expected yield of 4–8 Mt of TNT (6 predicted). [6]
Half Life: A Parable for the Nuclear Age is a 1985 Australian documentary film directed by Dennis O'Rourke, concerning the American Castle Bravo nuclear testing at the Marshall Islands in 1954. The film features interviews with residents of the nearby Rongelap and Utirik Atolls who were affected by nuclear fallout from the tests.
[2] [3] In 1954, the U.S. conducted the Castle Bravo test at Bikini Atoll as part of Operation Castle, which resulted in a yield of 15 megatons of TNT, more than double the expected yield. This unexpectedly high yield caused widespread radioactive fallout, leading to severe environmental and human consequences.
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While most of the Operation Castle tests were intended to evaluate weapons intended for immediate stockpile, or which were already available for use as part of the Emergency Capability Program, Castle Bravo was intended to test a design which would drastically reduce the size and costs of the first generation of air-droppable atomic weapons ...