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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 ...
In 1995, the U.S. government made public many documents decoded by the Venona project, showing Julius Rosenberg's role as part of a productive ring of spies. [70] For example, a 1944 cable (which gives the name of Ruth Greenglass in clear text) says that Ruth's husband David is being recruited as a spy by his sister (that is, Ethel Rosenberg ...
Trinity, part of Project Manhattan, was the first ever nuclear explosion. The nuclear weapons tests of the United States were performed from 1945 to 1992 as part of the nuclear arms race. The United States conducted around 1,054 nuclear tests by official count, including 216 atmospheric, underwater, and space tests.
Marian Zacharski, Polish Intelligence officer arrested 1981. Among other things, he won access to material on the then-new Patriot and Phoenix missiles, the enhanced version of Hawk air-to-air missile, radar instrumentation for F-15 fighter, "stealth radar" for B-1 and Stealth bombers, an experimental radar system being tested by U.S. Navy, and submarine sonar.
After school, Marion discovers Harriet's private spy notebook. She begins reading aloud Harriet's comments about her friends and peers, such as how she suspects Janie will grow up to be "a total nutcase" and criticizing Sport's father's low earnings. Sport and Janie shun Harriet, and her classmates create a "spy-catcher" club to torment her.
The second, "Use of Uranium as a Source of Power" discussed the idea of using uranium as a source of power, not just a bomb. The MAUD Committee and report helped bring about the British nuclear programme, the Tube Alloys Project. Not only did it help start a nuclear project in Britain, it helped jump-start the American project.
The United States completed six high-altitude nuclear tests in 1958, but the high-altitude tests of that year raised a number of questions. According to U.S. Government Report ADA955694 on the first successful test of the Fishbowl series, "Previous high-altitude nuclear tests: Teak, Orange, and Yucca, plus the three ARGUS shots were poorly instrumented and hastily executed.
The Mk-21 design project began on 26 March 1954 (just three weeks after Bravo), with production of 275 weapons beginning in late 1955. Romeo , relying on natural lithium, was rapidly turned into the Mk-17 bomb , the first deployable US thermonuclear weapon , [ 10 ] and was available to strategic forces as an Emergency Capability weapon by mid-1954.