Build five fun gadgets and learn about gears and transmissions. Create a helicopter model with a rotor that spins using a rubber band-powered motor. Assemble a spinner toy that you wind up to launch a fast-spinning top. Make a centripetal force machine that flings its arms outward at high speeds. Build a hand-mixer that demonstrates a gear train. Construct a cool aircraft launcher that flings a model vehicle across the room on a zipline. A 24-page manual guides your model building and experiments with step-by-step illustrated instructions.
Piece Count: 114
Manual Pages: 24
Product Dimensions: 8.75 x 11 x 2.5 in.
Manual Dimensions: 5.5 x 8.25 in.
Ages 6 and up