fire extinguisher

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When you think "what would happen if you crossed a tank with a fighter jet" most people wouldn't think "yes, the perfect fire extinguisher." But humans are nothing without our ingenuity, and this beautiful unholy alliance between a tank and a jet somehow turned into a safety device. It's all about intention.

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Via Washington Post:

At a certain frequency, the sound waves "separate the oxygen [in the fire] from the 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."
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