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.

The solution? A pulley system to make everything easier. The concept is simple. [Barnso]’s system uses three pulleys. The headphone cable goes to the PC, and then runs over the first pulley.

This Roman wooden pulley system was found at Bar Hill Roman Fort ... does not survive Scotland's acidic soils, this oak pulley block is an exceptionally well-preserved artefact from the Roman ...

[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 ...