Now, that’s a hard question. Asking who invented gears is like asking who discovered fire or who invented the wheel? There are certain things that have no proper record in history and gears seem to be one of them. Well almost! We do have some hints from the history of this question. We will share them with you. Around 50 AD Greek mathematician and engineer Hero of Alexandria referred to gears. He followed Archimedes, Inventor of Archimedes screw and an odometer that used his screw driven by a cart’s wheels, to raise and drop balls to record distance. Even more intricate geared devices meant to calculate astronomical movements show up between 150 and 100 BC. (source) See we told you … Continue reading Who Invented Gears?