Fission

In general fission is a splitting or breaking up into parts.

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In physics, nuclear fission is a process where a large nucleus such as uranium is split into two smaller nuclei.

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In biology, binary fission refers to the process whereby a

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prokaryote reproduces by cell division. It is similar to mitosis and meiosis in eukaryotes.

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In anthropology, fission refers to the process whereby a nationstate divides and becomes multiple states (example: Yugoslavia).

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Physics: Physics (from the Greek, φυσικός (phusikos), "natural", and φύσις (phusis), "nature") is the science of the natural world in the broadest sense, dealing with matter and energy and the fundamental forces of nature that govern the interaction...

Nuclear fission: In physics, fission is a nuclear process, meaning it occurs in the nucleus of an atom. Fission is when the nucleus splits into two or more smaller nuclei plus some by-products. These by-products include free neutrons and photons (usually gamma rays). Fission releases substantial amounts of energy...

Nucleus: Nucleus can mean:...