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        3-8

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        Auditory, Visual

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        Exploring Windmill Design

        Windmills are designed to perform a range of jobs, including irrigation control, grain milling, and power generation. In this video segment adapted from ZOOM, cast members design and construct a paper windmill capable of lifting a small load from the floor to tabletop height. They cut paper strips and fashion them so that they catch the air blowing past them, just as rotor blades do on real windmills. Watch and learn how moving air--supplied by a hairdryer--gets transformed into usable energy capable of doing work.

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