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A little wonder, every day

the first controlled nuclear chain reaction

AI-generated historical reconstruction of Chicago Pile-1 in a university racquets court; synthetic illustration, not a documentary photograph.
AI-generated museum-style reconstruction of a graphite pile in an underground court, with modest scientific equipment and no dramatic effects; not documentary evidence.

AI-generated historical reconstruction of Chicago Pile-1 in a university racquets court; synthetic illustration, not a documentary photograph.

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On 2 December 1942, Enrico Fermi’s team achieved the first controlled, self-sustaining nuclear chain reaction. The Chicago Pile-1 experiment took place not in the stadium stands themselves but in a racquets court beneath the west stands of the University of Chicago’s Stagg Field. It was a major step in learning how to control nuclear energy.