This video explores different methods that can be use to amplify a force, and focuses on three types of machine - levers, pulleys and gears. The amplification of a force is called mechanical ...

Others remember the gear-and-lever machines, something former machine technician and Democratic moderator Bobby Russo calls an “absolutely engineering marvel.

At MOSI, we have an awesome new temporary exhibit called Dinosaurs in Motion, where families can take control of giant metal dinosaurs using gears and levers.