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When many people think of pulleys, they picture someone standing and holding a rope that is tied to a heavy object. This person able to lift the heavy object because pulling on the rope applies tension to the pulley axle which, in turn applies lifting force to the weight. A simple concept because, after all, the pulley is a simple machine. But many people are unaware that the pulley is used every day all around homes and businesses all over the world.
If you look around any modern home or business, chances are you can see the pulley everywhere–if, that is, you know where to look. For example, Venetian blinds use the pulley system to raise and lower the blinds. Many types of curtains also use a pulley system. Double-hung windows are pulley-driven in order to reduce the amount of force that is required to open and close them. And if you see a weight machine, chances are you are looking at a pulley system.
Because pulleys can be used to help decrease the amount of force needed to move an object, you can often find a pulley system inside many types of machinery. For instance, your vehicle likely uses a belt and pulley system, just as do some types of industrial equipment. To learn more about the pulley and how it works in various settings, head to Business.com and click on the links on the left.