Extinguish Fire with Sounds

Extinguisher uses low-frequency sound waves to kill a fire

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Sun, Mar 29th, 2015 11:00 by capnasty NEWS

NYMAG showcases a fire extinguisher that fights fire with sound-waves.

Here’s how: By blasting a flame with low-frequency sound waves in the 30 to 60 hertz range, the extinguisher separates oxygen from fuel. “The pressure wave is going back and forth, and that agitates where the air is. That specific space is enough to keep the fire from reigniting,” Tran told the Washington Post.

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