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Thames & Kosmos Geared Up Gadgets

$39.99

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 28-page manual guides your model building and experiments with 114 pieces.

Suitable for

Ages 8+