This video explores different methods that can be use to amplify a force, and focuses on three types of machine - levers, ...

levers use mechanical advantage to make lifting or ... bell crank to make the brake pads touch the wheels. parallel motion linkages or push/pull linkages use two fixed pivots to make the input ...

Mechanical linkages in general are a group of bodies ... Perhaps the simplest example is the lever, that consists of a rigid bar that is allowed to pivot about a fulcrum, used to obtain a ...