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Try not to jiggle while watching these amazing bladeless wind turbines.

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A good example of aeroelasticity-gone-wild happened in 1940 at the Tacoma Narrows Bridge in Washington State, when it was blasted with hurricane winds up to 40 mph. The suspension cables absorbed the impact but made the bridge vibrate and undulate, causing a positive feedback loop known as an aeroelastic flutter, where each vibration made the next vibration even worse.


Ok, now I'm jiggling. 

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