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Walter Henry Zinn



Walter Henry Zinn (December 14,1906, Kitchener, Ontario - February 14, 2000, Clearwater, Florida) was a nuclear physicist at the University of Chicago Metallurgical Laboratory. Zinn worked on the Manhattan Project, and is credited with starting the world’s first self-sustaining nuclear reaction by withdrawing a control rod from the world’s first nuclear reactor on December 2, 1942 at the University of Chicago.



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