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People have used natural energy resources, especially fossil fuel, to burn and produce electricity for industrial activities and daily life for a long time. However, the limitation of these energies demands people to create alternative energies which are inexhaustible and effective. Because of that, solar energy and nuclear energy are potential unlimited energies resources people can exploit. Although they are energies used to replace fossil fuel, both of them are dissimilar in terms of the principle of operation of energy transformation, the level of safety and the dependence on natural conditions.