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Bird-friendly Bladeless Wind Turbine Mimics Nature

Energy created by conventional three-blade wind turbines is cheap, sustainable and pollution-free. But according to current estimates, the devices' fast-moving blades kill up to 300,000 birds annually in the U.S. That could change with a bladeless wind converter called Saphonian, designed by Tunisian engineer Anis Aouni. He studied ancient sailboats and the movements of birds and fish to develop a parabolic dish that rotates in a peculiar pattern while catching the wind like a ship’s...

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