Windmills, Then and now
Modern windmills are different from the large clunky ones that inspired Miguel de Cervantes of Spain in the early 1600s to write a novel about a mentally deranged man, Don Quixote, who set out on a mission to fight windmills. These he mistook for enemies. Although those of today are different, they are similar to the older ones in that they have blades, rise high in the atmosphere and work in much the same way. Energy is derived by the force of the wind as it hits the propellers and this is converted into power by generators.
The old and the new differ in appearances somewhat, but not in basic construction. The newer propellers are made of lighter material and they consist of three to a pole. And yes, they are always white. To read more...
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