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 ...

When we think of machines, the likes of robots, appliances and manufacturing equipment come to mind, but scientists also classify such common objects as the screw, the lever, the wedge and the wheel ...

Learn more about how simple machines help make your work easier. A simple machine has few or no moving parts, but it can be used to create wonders. Learn more about how simple machines help make your ...