Build a big-wheel tricycle, a flying machine, drilling vehicle, walking robot, engined car and even a wind-powered yacht. As you build and experiment, you will learn about how engineers have been using wind as a power source since the beginning of time. With the wind-energy-focused design, these fascinating robots can travel easily with your child for days without any help. Included a portable wind generator, so you can power your machine anytime and whenever you want!
