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.

A $12 million crane capable of lifting 78 tons is the machine we utilize in this engineering Teachable Moment, using pulleys and levers to explain Mechanical Advantage. A $12 million crane capable of ...

BAGRAM AIRFIELD, Afghanistan (Oct. 7, 2011)--They came to teach the science of vehicle recovery and instill trust in the mechanical advantage. They accomplished that mission in the heat and the mud ...