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Since long time ago, wind energy has been applied to aid people on many daily life activities. Wind energy can be used in order to grind grain and even to pump water: that’s what windmills do. In this case, wind energy is used to get mechanical energy to ...

Since long time ago, wind energy has been applied to aid people on many daily life activities. Wind energy can be utilized in order to grind grain and even to pump water: that’s what windmills do. In this case, wind energy is used to get mechanical energy...

Since the moment renewable energy resources have begun to interest people, a good deal of different alternative energy systems have been introduced by those who wish to provide their homes with clean, non-polluting and, especially, free energy. Solar ener...