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 ...

Simple machines make work easier, not less work, says Rick Crosslin, scientist. He joined us today to demonstrate how simple machines work. In our case, Randy was the “load” and Amber was the “effort.

imple machines help us change the amount of force or the direction of the force needed to move an object. Find out how by learning more about levers. Major Funding by the Laura Moore Cunningham ...

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