Title: The LEGO power functions idea book
Description: The LEGO Power Functions Idea Book, Vol. 1: Machines and Mechanisms shows off 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.
Subjects: Models, Power (Mechanics), Machinery, LEGO toys, Automobiles, models, Power (mechanics), Lego toys, Machinery, models