A perspective on gear history

This is a rather compact summary of 4000 years on gears and geared devices. The purpose is to try and put some historical facts into context and perspective. It is by no means a complete list or a thorough study.

A true revolution: the invention of the wheel

An application: water well

A device ahead of its time: the Antikythera Mechanism

A mechanical calculator: the Stepped Reckoner

A pioneering design: the Analytical Engine

An ingenious mechanical calculator: the Curta

An eternal timepiece: the Antikythera Sunmoon

An evolutionary remark on scales


Gears in nature: who said it is just a man-made invention?

Strange gears and other mechanical principles: