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A new type of wind turbine is poised to leap onto the wind power scene, this time without blades, twice as efficient and half the price of conventional wind turbines.

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In short, a efficient wind turbine lets air enter the blades, but does not let it leave. No matter how fudging cool it would be, you can see why it is impossible.

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Such high-efficiency energy conversion dictates the use of lift-type turbine blades, similar to airplane wings, of twisted and tapered airfoil shapes.

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