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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.

Read the full article at: gizmodo.com