A little wonder, every day
the first controlled nuclear chain reaction
1 / 2
AI-generated historical reconstruction of Chicago Pile-1 in a university racquets court; synthetic illustration, not a documentary photograph.
Listen to fact0:00 / —
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.

