Build six awesome robots — all that move without any batteries or electrical power. The secret behind these fascinating machines is one of the oldest power sources in the world: wind! A full color manual guides you to assemble six models one at a time from over 200
pieces. Build a big wheel tricycle, quadruped, soaring machine, drilling monster, walking robot, and even a wind-powered yacht. To make them go, assemble your own hand-powered wind generator. As you go, you will learn about how gears transmit power and torque. Also learn about wind as a power-generating technology, past, present and future. Easy,
snap-together assembly requires no glue. The kit includes step-by-step illustrated instructions.