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 ...

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 ...

A zipline is not just a zipline, and a merry-go-round is more than just a merry-go-round at Science City’s first outdoor exhibit, opening at 10 a.m. Tuesday at Union Station. They and other play ...