Long passed are the days of manila rope and wooden block and tackles. Now, we puff out our chest with high-efficiency, ball bearing pulleys and auto-locking carabiners. Much like cellphones, it seems ...

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 ...

A gear close gearA gear is a mechanical part with teeth that interlock with another gear or belt to transfer motion and power while changing speed, or direction in a mechanical system. is a special ...

The HitchMaster is a simple pulley with no moving parts. Like any pulley, it works by trading force for distance: it's easier to lift, say, an engine block, but you'll have to pull the rope a lot ...

Introduction Before the industrial age people largely had to rely on muscle power to move and lift heavy objects. Simple machines such as pulleys, levers and ramps made it easier for humans to lift ...