There are a number of ways to transfer an engine or motor's power into drive, and these are generally split into two camps — automatic and manual transmissions. While gear-based transmissions have ...

Researchers at the University of Gothenburg have made light-powered gears on a micrometer scale. This paves the way for the smallest on-chip motors in history, which can fit inside a strand of hair.

In this video, we uncover the fascinating world of mechanical advantage through three simple yet powerful machines , levers, pulleys, and gears. For centuries, humans have used these inventions to ...