The Manhattan Project that built the atomic bomb wasn't without its own dangers. Experiments on a so-called "demon core" of plutonium caused the deaths of two Manhattan Project physicists. Both ...

Have you heard of the Demon Core? Though it sounds like some kind of a superstitious group, rest assured that is not what it is. Instead it refers to the time in which scientists at the Los Alamos ...

Less than a year later, on May 21, 1946, Louis Slotin would become the demon core’s second victim. Slotin, a 35-year-old physicist, was performing another test to verify how close to criticality the ...

Demon Core ' is a research-use plutonium lump that was converted from a nuclear weapon that was planned to be dropped on Japan, and is known for dangerous criticality experiments that are performed ...