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Measure wind speed with this simple, homemade anemometer (say an-uh-MOM-uh-ter).
You measured the wind's speed in turns (or revolutions) per minute (RPM). Weather services use anemometers to measure wind, but they convert the RPMs into miles per hour to tell us how windy it will be. To be considered a good wind resource to produce wind power, the wind speeds need to be at least 13 miles per hour, on average. Use your anemometer to measure wind speeds at a different times of day over several days. According to your anemometer, is wind a good resource where you live?
Check out our pinwheel wind turbine project > >
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