Mr. Wizard's World

Ultra Violet Light, Bottle Balloon, Sandpaper, Homemade Motor, River Modeling, Mirror signal and more (3x9)

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Ultra Violet Light, Bottle-Balloon Steam, What's This, Washer Pick Up from Glass, Homemade Motor, River Modeling, Mirror Signal. Mr. Wizard and Darren look at a rock under normal light and under ultraviolet light from a special lamp. They discuss the word ultraviolet. Darren describes ultra as very Violet and violet sort of like purple