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Simple Soundwaves Can Knock A Drone Out Of The Sky

A shotgun is obviously the more satisfying approach, but researchers at the Korea Advanced Institute of Science and Technology have found a simpler way to knock drones out of the sky — by targeting their onboard gyroscopes with nothing but sound.

This Glorified Speaker Blows Out Fires With Bass 

Engineers have experimented with using sonic waves to douse flames for years — but it took a pair of students to turn the concept into an affordable, hand-held device.

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