If the blades are moving quickly, the raptors cannot see the blades and will dive through the blades when they have spotted a likely victim.

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The blades start moving in 60 seconds.

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Until the development of the Charlestown Test Center, any company moving into development of longer blades had to test in Europe, which was time-consuming and costly.

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Battery-fueled face cleaners, razors with special blades, or electronic toothbrushes have more moving parts, making them more likely to break.

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Ferrell spent seven years starring on Saturday Night Live before moving into film, starring in films including Zoolander, Talladega Nights, Blades of Glory, Megamind and most recently, The Campaign.

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Technology advances in the last few years have replaced older, faster-moving windmills with new, self-monitoring turbines whose 150-foot long blades adjust to wind direction and speed.

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