Stuff You Missed In History Class

The Demon Core was a sphere of plutonium-gallium alloy that the U.S. made for use in an atomic bomb during World War II. After the war, researchers at Los Alamos National Laboratory had two separate, fatal criticality accidents while working with it.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.