By the end of the year the physicist Werner Heisenberg had calculated that nuclear fission chain reactions might be possible. When slowed down and controlled in a "uranium machine" (nuclear ...

There are a number of different nuclear fusion reactions happening in the Sun. The simplest is when four hydrogen nuclei become one helium nuclei.

Nuclear fission does not release the greenhouse gas, carbon dioxide. A controlled nuclear fission reaction releases one million times more energy per kg than a chemical reaction such as burning ...

Both fusion and fission reactions shift the size of the reactant nuclei towards higher bounded nuclei. Does Fusion produce radioactive nuclear waste the same way fission does? Nuclear fission power ...

Fusion is the Opposite of Fission Nuclear fusion and fission might sound similar, but they are fundamentally opposite processes. While nuclear fission breaks heavy atoms into smaller ones, fusion does ...

Yet despite improvements in the design of nuclear-fission reactors, there remain public concerns about their safety and the waste that they produce. Many have suggested that harnessing nuclear ...