The Demon Core: A Deadly Slice of Nuclear History

Transcript

The demon core was a small, 6.2‐kilogram plutonium sphere measuring about 3.5 inches in diameter and was created during the Manhattan Project. Originally intended for a third atomic bomb that was never deployed after Japan surrendered, this core was retained at Los Alamos for criticality experiments. During its experiments, minor mishaps caused the core to go supercritical, releasing lethal blue flashes of neutron radiation and tragically claiming the lives of two scientists. These fatal incidents led to the implementation of remote-handling techniques and strict safety protocols, forever changing nuclear experimentation.

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