+A pulley is a simple [Machine](/wiki/machine) consisting of a wheel on an axle, often grooved, designed to support movement and change the direction of a taut rope or cable. It provides [Mechanical Advantage](/wiki/mechanical_advantage), easing the lifting of heavy loads or the transmission of force.
+## See also
+- [Lever](/wiki/lever)
+- [Wheel and Axle](/wiki/wheel_and_axle)
+- [Simple Machine](/wiki/simple_machine)
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