Find out more about the wheel and axel, the lever, and the wedge. Find out more about three of the six simple machines: the wheel and axel, the wedge, the lever. Simple machines like these help us do ...

Machines are all around us, helping us do tasks and work all day, every day. The most basic ones are deemed “simple machines,” but these were, and still are, some of the most essential technological ...

Simple machines make work easier to do. But how? Join Joan at the Discovery Center of Idaho as she tries various experiments with simple machines. Science Trek is available to stream on pbs.org and ...