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National Museum of Nuclear Science & History

Robert Nobles (1917-2007) was an American physicist who worked on the Manhattan Project at the University of Chicago with Enrico Fermi. He was a member of a group conducting experiments to determine the correct size and the arrangement of graphite and uranium in Chicago Pile-1, the first nuclear reactor. His group also played an active part in the actual construction of the pile.

Robert was one of three brothers who worked on the Manhattan Project – his brothers Ralph and William both worked at Los Alamos.

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