Chicago Pile-1

This drawing depicts the historic Dec. 2, 1942, event -- the first controlled, self-sustaining nuclear chain reaction. It took place underneath the University of Chicago's Stagg Field football stadium led by a group of eminent scientists, some of whom would later found Argonne National Laboratory.

More about the CP-1 reactor »


More Argonne history »


Drawing courtesy of Argonne National Laboratory.

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Taken on March 19, 2010
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