Beginning with a cartoon of Archimedes demonstrating the power of levers, the film transitions to real-world examples such as can openers, seesaws, and industrial tools. A hands-on demonstration ...

Levers are simple machines that can help amplify lifting force. As the scientists and local participants discover, even with the mechanical advantage of a lever, the challenge is decidedly ...

Throughout history, humans have developed several simple machines ... of the lever depends on the ratio of the lengths of the beam on either side of the fulcrum. For example, say we want to ...

Find out how simple machines makes work easier on this Science Trek. Simple machines include the lever, the inclined plane, the wedge, the pulley, the wheel and axle, and the screw. Combine these ...