batteries or electricity. The secret behind these fascinating machines is one of the oldest power sources in the world: wind! A full-color manual guides you in assembling six models one at a time from over 130 pieces.
Build a big-wheel tricycle, quadruped, soaring machine, drilling monster, walking robot, and even a wind-powered yacht. To make them all go, the kit also includes the pieces to build a hand-powered wind generator. As you build and experiment, 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
Step-by-step, illustrated instructions
6-in-1 engineering kit: build six wind-powered models and a handheld wind generator. Start cranking the generator and watch them go!
Learn about gear ratios and wind-power technology.
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What is a small part?
A small part is any object that fits completely into a specially designed test cylinder 2.25 inches long by 1.25 inches wide that approximates the size of the fully expanded throat of a child under three years old. (See figure). See 16 C.F.R. 1501.4 A small part can be:
A whole toy or article
A Separate part of a toy, game, or other article
A piece of a toy or article that breaks off during testing that simulates use or abuse by children
If a small part fits completely into the cylinder, and the toy or product from which it came is intended for use by children under three, the toy or product is banned because the small part presents a choking hazard.
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