The so-called Demon Core was a cursed object, a 6.2 kilogram mass of plutonium intended to be installed in a nuclear weapon. Instead, slapdash experimental techniques saw it feature in several trag… ...

The Demon Core killed two of them-and is now the subject of many killer memes. Alex Wellerstein collects the best of them and muses on the weird dark humor at hand.

Of course, the Trinity test's nuclear core, the demon core, and the first two atomic bombs used in combat were manufactured by the same Los Alamos Laboratory, chaired first by Robert Oppenheimer ...

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 ...