√ [HOW TO USE]:As shown in image 4, the first item required is a metal bar or a sturdy wooden bar with enough strength to hang the hoist up ceiling indoors or outdoors. √ [TWO OPTIONS TO LIFT ...

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 ...

This Roman wooden pulley system was found at Bar Hill Roman Fort, Strathclyde, Scotland and was picked by Christina Gilfedder, second year student at the University of Glasgow (Single Honours ...

A fixed pulley changes the direction of force, allowing for easier lifting, while a movable pulley reduces the amount of force needed to lift a weight. By using multiple pulleys in a system known as a ...

The all-electric Super Jammer can handle heavy weights. It now wants to break the Guinness record. It has already proven that ...