The endless wind almost all over the year along with the scarcity of water resources were two factors which encouraged our ancestors to make an efficient use of this natural energy, as a result of which windmills locally called "Asbad" were invented.Īsbad is one of the most significant architectural structures of Iran in its desert regions which converts kinetic energy of air (wind) into other forms of energy.Īsbad is a smart technique to grind grains, a technique which goes back to ancient times when the people living in the eastern parts of Iran in an attempt to adapt themselves with the nature and transform environmental obstacles into opportunities managed to invent it. Though this natural phenomenon is more prevalent all over the country during autumn, and in winter, winds may keep blowing, but the eastern parts of Iran are an exception in that even when there is no wind in other parts of Iran during spring and summer, these parts are affected by winds known as "120 days winds / black winds" the speed of which sometimes gets to 100 km / hour. Strong northern winds (Shamal) blow throughout the year in the eastern parts of Iran (Sistan and Baluchistan, Southern Khorasan and southern parts of Razavi Provinces).
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