Simple machines can be regarded as the elementary "building blocks" of which all more complicated machines (sometimes called "compound machines") are composed. For example, wheels, levers, and pulleys ...

For the uninitiated, ornithopters are machines ... known as levers. Technically speaking, levers predate humanity. You find them in biology — your forearm is a good example which I’ll go ...

Mechanical advantage is the amount of help you get using a machine ... fact When a lever is balanced it has equilibrium - the load is balanced on either side. A crowbar is an example of a first ...

A YouTuber’s latest 3D printer project includes a real tattoo gun and a large clamp to keep your skin in place.