And then you see something like an infinitely variable transmission built from nested pulleys, and you realize there’s always room for improvement. The electric motors generally used in robotics ...

Pulleys are found in lifts, cranes, car engines and garage doors. Have you ever seen a flag being raised, or wondered how a mechanical clock works? Let’s take a look at some of the simple ...

Various pulleys with different degrees of mechanical advantage (1:1, 1:2, and 1:4) can be used with different masses and a newton scale to perform a quantitative demonstration. Mount the rod ...

This video explores different methods that can be use to amplify a force, and focuses on three types of machine - levers, ...

“Crossbow made with pulleys and power springs. The complex mechanism, which required advanced mathematical and mechanical understanding to craft, was likely made by a certain genius who learned ...

“Longbow which utilizes a series of pulleys and strings. The complex mechanism, which required advanced mathematical and mechanical understanding to craft, was likely made by a certain genius ...