How Wind Turbines Work

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A short video from the U.S. Department of Energy illustrates how the 130' long blades of wind turbines generate power.

Trying to build a better planet. Read more from this special report.

Shaped a little like the wings of an airplane, the blades only turn at about 18 revolutions per minute but use gears to increase the speed to 1,800 revolutions per minute. For more on wind energy, check out Alexis Madrigal's photo gallery about the eight biggest wind farms in the world, which also happen to be the biggest in the U.S.

For more information from the U.S. Department of Energy, visit http://energy.gov/.

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Kasia Cieplak-Mayr von Baldegg is the executive producer for video at The AtlanticMore

Cieplak-Mayr von Baldegg's work in media spans documentary television, advertising, and print. As a producer in the Viewer Created Content division of Al Gore's Current TV, she acquired and produced short documentaries by independent filmmakers around the world. Post-Current, she worked as a producer and strategist at Urgent Content, developing consumer-created and branded nonfiction campaigns for clients including Cisco, Ford, and GOOD Magazine. She studied filmmaking and digital media at Harvard University, where she was co-creator and editor in chief of H BOMB Magazine.

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