Fremont Middle School students in Mundelein experimented recently on roller coaster gymnastics to to see how levers, inclined planes and pulleys would affect the speed of a vehicle and how integral a ...

A simple machine is a mechanical device that changes the direction or magnitude of a force. In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called ...

Distinctive spiral patterns carved into a small jade ring show that China was using complex machines more than 2500 years ago, says a Harvard graduate student in physics. The ring was among the goods ...