When you push or pull with a simple machine, you are applying a force and doing work. And, if you get more force out of a machine than you put into it, then that machine has a mechanical advantage.

Find out more about the inclined plane, the pulley and the screw. Find out more about three of the six simple machines: the inclined plane, the pulley and the screw. These simple machines make work ...

You push a shopping cart, pull your luggage across uneven sidewalks, push and pull furniture when cleaning, or when that sudden urge to redecorate comes on. So, why not tailor your workout to these ...