The Manhattan Project

In partnership with the National Museum of Nuclear Science & HistoryNational Museum of Nuclear Science & History

Oak Ridge, TN

Y-12 Plant

The Y-12 Plant in Oak Ridge used the electromagnetic separation method, developed by Ernest Lawrence at University of California-Berkeley, to separate uranium isotopes.

Colleen Black

When Colleen Black's brother was drafted into the Army in 1942, she and her family decided to move to Oak Ridge to contribute to the war effort and bring her brother home.

K-25 Plant

The K-25 Plant in Oak Ridge used the gaseous diffusion process to enrich uranium.

Gaseous Diffusion Process

The K-25 plant was an enormously ambitious and risky undertaking. A mile-long, U-shaped building, the K-25 plant was the world’s largest roofed building at the time. British scientists working on the “tube alloy,” code for the atomic bomb project, first advocated the gaseous diffusion method in March 1941.  Because of the Nazi bombing of England, any production plants had to be located elsewhere.

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