File:Stagg Field reactor.jpg

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Summary
Description	The first nuclear reactor was erected in 1942 in the West Stands section of Stagg Field at the University of Chicago. On December 2, 1942 a group of scientists achieved the first self-sustaining chain reaction and thereby initiated the controlled release of nuclear energy. The reactor consisted of uranium and uranium oxide lumps spaced in a cubic lattice embedded in graphite. In 1943 it was dismantled and reassembled at the Palos Park unit of the Argonne National Laboratory.
Source	Wikimedia Commons file page
Author	Melvin A. Miller of the Argonne National Laboratory
Permission	See original Commons license details.

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current	03:30, 5 June 2026		3,000 × 2,352 (3.83 MB)	Maintenance script (talk \| contribs)	== Summary == Importing file

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