What other reactor did the supervisor of construction of the reactor that went critical under the supervision of Enrico Fermi build?
Chicago Pile-1 Chicago Pile-1 (CP-1), was the world's first artificial nuclear reactor. Its construction was part of the Manhattan Project, the Allied effort to create atomic bombs during World War II. It was built by the Manhattan Project's Metallurgical Laboratory at the University of Chicago, under the west viewing stands of the original Stagg Field. The first human-made self-sustaining nuclear chain reaction was initiated in CP-1 on 2 December 1942, under the supervision of Enrico Fermi, who described the apparatus as "a crude pile of black bricks and wooden timbers".
Lawrence R. Hafstad Dr. Lawrence R. Hafstad (June 18, 1904 – October 12, 1993) was an American electrical engineer and physicist notable for his pioneering work on nuclear reactors. In 1939, he created the first nuclear fission reaction in the United States.