Pulley systems are simple machines that make lifting heavy objects easier. They consist of a rope or cable that passes over one or more wheels (pulleys). A single pulley changes the direction of force ...

In the world of rope rescue, we use mechanical advantage systems really for two reasons. The first being a force increasing tool and the second, a means of reducing the weight of a load during a ...

This experiment shows how a basic pulley system can be designed to brake itself, demonstrating clever mechanics with minimal components. First reading: The mother of all unintended consequences is ...