However, the two gears can vary in size to achieve a different gear ratio. An example of this is in a hand drill, where the drive gear is larger than the driven gear. A pillar drill with a rack ...

How Levers, Pulleys and Gears Work Posted: January 17, 2025 | Last updated: January 17, 2025 This video explores different methods that can be use to amplify a force, and focuses on three types of ...

[Steve Mould] shows us a different take – the experimentation kit called Spintronics, which goes the mechanical way, using chains, gears, springs and to simulate the flow of current and the ...