File:Stagg Field reactor.jpg

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Description	English: 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 imbedded in graphite. In 1943 it was dismantled and reassembled at the Palos Park unit of the Argonne National Laboratory.
Date	Unknown
Source	http://narademo.umiacs.umd.edu/cgi-bin/isadg/viewobject.pl?object=95120
Author	Melvin A. Miller of the Argonne National Laboratory
Permission ( Reusing this file)	Public domainPublic domainfalsefalse This image is a work of a United States Department of Energy (or predecessor organization) employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. Please note that national laboratories operate under varying licences and some are not free. Check the site policies of any national lab before crediting it with this tag.

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