In other cases, another member of the system will go on to form a second white dwarf. If gravitational instabilities bring ...

Critical mass is a physics term describing the point at which there is sufficient density to attain a sustained nuclear chain reaction. It gets adapted to describing any situation where sufficient ...

When an atom breaks apart, it gives out energy and more neutrons, which can then split other atoms. Get enough atoms splitting and you have the chain reaction needed for a bomb blast ...