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Drones Deets

New Noise-Blocking Material Could Make Jets and Drones Super Quiet

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The most effective way to block an annoying sound is to simply build a barrier—the thicker, the better. But instead of everyone living in sound-blocking caves in a few years as noisy drones criss-cross the skies, researchers at Boston University have engineered an acoustic metamaterial that’s designed to silence annoying sounds at their source, without blocking the movement of air.

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