George Leon Weil | |
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| Born | September 18, 1907 |
| Died | July 1, 1995 (aged 87) |
| Nationality | American |
| Alma mater | Harvard College Columbia University |
| Scientific career | |
| Fields | Physicist |
| Institutions | Columbia University Metallurgical Laboratory Los Alamos Laboratory General Electric Atomic Energy Commission |
| Thesis | Beta-Ray Spectra of Arsenic, Rubidium and Krypton (1942) |
George Leon Weil (September 18, 1907 – July 1, 1995) was an American physicist. On December 2, 1942, he removed the control rod from the Chicago Pile-1 nuclear reactor, initiating the first man-made, self-sustaining nuclear chain reaction.