Atomic spies
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Atomic spies or atom spies were people in the United States, the United Kingdom, or Canada, who are known to have illicitly given information about nuclear weapons production or design, to the Soviet
Klaus Fuchs, arguably the most important of the identified "atomic spies" for his extensive access to high-level scientific data and his ability to make sense of it through his technical training
Lona Cohen on Russian stamp
Morris Cohen on Russian stamp
Alan Nunn May, University of Cambridge physicist
Manhattan Project
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The Manhattan Project was a research and development program undertaken during World War II to produce the first nuclear weapons. It was led by the United States in collaboration with the United Kingd
Atomic spies
…such as Igor Kurchatov, L. D. Landau, and Kirill Sinelnikov helped establish the idea of, and prove the existence of, a splittable atom. Dwarfed by the Manhattan Project conducted by the US during the war, the significance of the Soviet contributions has been rarely understood or credited outside the field of physics…
K25 Aerial
Hanford B Reactor
HD.4G.053
German Experimental Pile Haigerloch April 1945