Single pulley systems can be seen in cranes, lifting a bucket from a well, raising a flag or adjusting window blinds. Figure caption, A single fixed pulley has a mechanical advantage of one One ...

[Skyentific] has been messing with robotic joints for quite a while, and demonstrated an interesting way to use a pulley system in a robotic joint with quite a bit of mechanical advantage and zero ...

By using multiple pulleys in a system known as a block and tackle, the force required to lift a weight can be significantly decreased, although this requires moving the force over a greater distance.