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DECEMBER 17, 2011
Science Saturday - Why Learn Math?

Why do they make you take all these booooring science and math classes in school? Here is one reason to study hard in the science classes: It takes a lot of math and science to put together large holiday light displays. Typically one strand of lights will use 1/3 of an amp. Most home outlets have 120 volts flowing. In order to do big displays you must calculate how many lights you can plug into one outlet: Power [Watts] = Voltage [Volts] * Current [Amps]. If you coordinate to music then you need a control board and to do some computer programming. All this science will pay off in the end if you can create displays like this:

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posted by Arra - Lakewood Library

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