They are made from another type of simple machine—the wheel and axle. A simple pulley has one more part added—a rope wrapped around the wheel. One end of the rope can be tied to a load, ...

A pulley close pulley A pulley is a simple machine made up of a grooved wheel on an axle. It guides a rope, belt, or cable and changes the direction of or the amount of force that is needed to ...

It is a simple pulley without an axle, which they call the Egyptian Pulley. “Certainly a lot of people tried to solve this (question of the pyramids’ construction) for several years, so it kind of ...