Build six awesome bots that move without any 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. 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.

Details:
• No batteries or electricity required
• Experiments: 6
• Piece Count: 133
• Manual Pages: 52
• Ages: 8+
• Imported