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 ...

At the Los Alamos Laboratory in the United States, there was a subcritical mass of plutonium weighing about 14 pounds (6.2 kg) that was used in various experiments and took the lives of two scientists ...

What happened in Los Alamos during World War Two is under a lot of scrutiny these days. There was the TV show, then there was the national park, and now President Obama is going to Hiroshima to ...