The LEGO power functions idea book / Yoshihito Isogawa

The LEGO Power Functions Idea Book: Vehicles and Movement shows readers small projects to build with LEGO's system of gears, motors, gadgets and other moving elements. The book is filled with hundreds of buildable, clever mechanisms that demonstrate a key technique or mechanical principle. Follow along and build four-wheel drive cars, adorable walking 'bots, steerable tanks, robotic inchworms, and cars that can follow the edge of a table! And just by building, you'll explore the principles of gearing, power translation, differentials, suspensions, and more. Imagine. Create. Invent. Now, what will you build?