Uranium and thorium are main radioactive elements. When the heavier nucleus of these radioactive elements split up into two parts, a huge amount of energy is produced. This is called nuclear fusion also, energy from the nucleus of a atom is produced due to the nuclear fusion and nuclear fission. Nuclear fission is of two types: Uncontrolled nuclear fission and Controlled nuclear fission. In the uncontrolled nuclear fission, huge amounts of energy is released in very short interval of time, resulting in a great explosion. This principle is used in atomic bombs. The atomic bomb is the destructive use of nuclear energy. During the Second World War, two atomic bombs were dropped on the Hiroshima and Nagasaki. In the controlled nuclear fission, limited amount of energy is produced in the form of heat. This heat is used to produce steam to run turbines. The turbines drive the generator to produce the electricity. This is a peaceful use of the nuclear energy.
The demand for nuclear energy in developing countries is rapidly growing. Nuclear energy can be used in various sectors such as transport, communication, industry and domestic.
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