Show me the science!Right, I've set up a very simple machine for us.Yeah, it looks simple. This is a super-powerful lever, I think you'll find!So, the lever is this ruler here.Here is the pivot ...

Simple machines can be regarded as the elementary "building blocks" of which all more complicated machines (sometimes called "compound machines") are composed. For example, wheels, levers, and pulleys ...

Seventh graders attending the North Salem Middle School created extraordinary mechanical marvels last week by using ordinary ...