Rebrickable Help Guide: Gears | Rebrickable - Build with LEGO
Introduction to Lego Technic Gears - Brick Folks
FAQ: What is the relationship between the number of teeth on a gear and it's radius?
Minds and Computers4.1 Today's Topics l Braitenberg Vehicles l Art of Lego Design ä Notes from Jason Geist, Carnegie Mellon University l Differential Drive. - ppt download
Gears, most wanted - Page 3 - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums