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Added on 2019-09-20
Essay on Wind Energy: Wind energy is one of the most reliable and abundant sources of renewable energy on this planet. The wind was also for grinding grains by several farmers. It is also surprising to note that one of the earliest windmills had a vertical axis of rotation. The people use braided mats or sails for rotating these windmills across the vertical axis. These windmills had an operational advantage as they were independent of the direction of the wind. The windmills using the horizontal axis of rotation are relatively new as compared to vertical axis ones.