Build five fun gadgets and learn about gears and transmissions. Create ahelicopter 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 ...Build five fun gadgets and learn about gears and transmissions.
Create ahelicopter 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 aircraftlauncher that flings a model vehicle across the room on a zipline.
A 28-page manual guides your model building and experiments withstep-by-step illustrated instructions.