Who uses nuclear fission and nuclear power?
Nuclear fission refers to the splitting of an atomic nucleus. It occurs naturally and can be induced in order to release energy. Nuclear fission provides the energy released by nuclear weapons as well as the energy used to produce energy at nuclear power plants.
A Nuclear Power Station is facility for producing electricity using Nuclear Power. It uses the principle of "Nuclear Fission" of the radioactive element Like Uranium, plutonium etc by bombardment of "Neutron" on them. Nuclear fission disintegrates the nucleus of a radioactive atom in to two parts, with release of huge amount of heat energy. This energy is used to produce steam & thus power / electricity by turbine principle.
The sun uses nuclear fusion to create energy, and nuclear power plants use nuclear fission to create energy. Fusion and fission are different, but they are both nuclear processes. They involve the manipulation of atomic nuclei, and because relatively huge amounts of energy are associated with these structures (the nucleui of atoms), lots of energy can result from the fusion or fission of even a small amount of material.