Demon core
The demon core was a ball of plutonium that was supposed to be the third atomic bomb in the Manhatten project. The demon core took the lives of
two physicists, Harry Daghlian Jr. and Louis Slotin.
Demon Core Media
The two physicists Harry Daghlian (center left) and Louis Slotin (center right) during the Trinity Test. Both died following supercritical accidents involving the "demon core."