School kit of a 4-bladed solar windmill.It will be necessary to file and polish the pieces of wood to form the casing, the blades and other accessories of the mill. The mechanical transmission is made by pulleys and belt.The lighting is from the photovoltaic cell that generates a flow of electrical current and feeds the motor. Thanks to the system of pulleys, the four blades of the mill will turn driven by the sun. Educational kit made of wood and metal.Multi-language teaching manual included.
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