"Create your own model-sized vehicles powered by balloons, rubber bands, and small motors. Step-by-step instructions, illustrations, and photographs guide readers through the building process, while informative text explains the science--aerodynamics, gravity, propulsion--behind them"--
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"Create your own model-sized vehicles powered by balloons, rubber bands, and small motors. Step-by-step instructions, illustrations, and photographs guide readers through the building process, while informative text explains the science--aerodynamics, gravity, propulsion--behind them"--
Read Less