Sometimes it is not necessary for an entire wheel to be used. A projection of any kind that can cause…
This medieval elevator shows the use of two simple machines: wheel and axle on the right, and a pulley…
A combination of wheels and axles, called a train. The wheel that is moving with a belt is called a…
A wheel and axle has two cylinders of different diameters that are connected so that they turn about…
Illustrations showing the six mechanical powers: lever, wheel and axle, pulley, inclined plane, wedge,…