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




More

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



Strange gears and other mechanical principles:

www.000webhost.com