Students started weeks ago by learning about the six simple machines — the inclined plane, lever, wedge, wheel and axle, pulley and screw.

They are all designed to help us. Simple machines use a smaller force to have a greater effect and change motion. The six simple machines are: inclined plane lever pulley screw wedge wheel and axle ...

Many theories have tried to explain when and where the wheel and axle were first invented. A new study examines a relatively recent theory that miners in the Carpathian Mountains created the first ...