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MAUD Committee : ウィキペディア英語版 | MAUD Committee
The Maud Committee (Military Application of Uranium Detonation) was the beginning of the British atomic bomb project, before the United Kingdom joined forces with the United States in the Manhattan Project. The implications of a March 1941 MAUD Committee report would be instrumental in accelerating the U.S. atomic bomb project. ==Frisch and Peierls== In February 1940, Otto Frisch and Rudolf Peierls, working at the University of Birmingham in the UK, considered the possibility of fast fission in uranium-235. They estimated the critical mass of pure U-235 was only "a pound or two", and that much of this mass would react before the rest was blown away by the explosion. They estimated the likely effects of the bomb, possible methods of assembly and made estimates on how feasible it was to separate the uranium-235. They prepared a memorandum, the Frisch–Peierls memorandum, on their discovery and gave a copy to their professor, Marcus Oliphant, who passed it to Henry Tizard, the chairman of the Committee on the Scientific Survey of Air Defence, which was the most important scientific committee for defense in Britain.
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