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

Every one knows, as a piece of school-boy acquirement, that the mechanical powers are the lever, the wheel and axle, the pulley, the inclined plane, the wedge and the screw. Very few people ...

Pulleys were likely used in construction cranes to lift heavy loads from one place to another. Levers have been used for many thousands of years. Evidence has been found of levers dating back to ...