What Is The Nuclear Fusion, Explain It?

Nuclear fusion is another way to get energy. Man has always copied nature and now he wants to duplicate the nuclear process occurring in the sun for the production of energy. The word "fusion" means joining together. The energy emitted by the stars is believed to result from the fusion of hydrogen nuclei to form helium nuclei. Such reactions which occur at a very high temperature are termed as thermonuclear reactions. Fusion processes are spontaneous only at temperatures of the order of 108 C or higher.

The conversion of hydrogen into helium takes place in stages. Two deuterium nuclei are fused to form helium-3, starting with the deuterium molecule. The large amount of energy that is released results from the mass difference between two deuterium nuclei and the helium-3 nucleus and a neutron.

Although methods for controlling the nuclear fission reaction have been developed and used to produce useful power, similar control of nuclear fusion has not yet been realized.

Dreams of nuclear fusion continue to attract the world top scientists the lure of cheap, ultimate and pollution-free energy for the future, the success may lie fifty years ahead but once harnessed, the electricity produced would be too cheap to meter.