Two electrical engineering students at George Mason University have come up with a new way to put out fires. Their device uses extremely low-frequency sounds to extinguish flames, and is what one of the inventors calls, “a simple solution to a complicated problem.”
[youtube https://www.youtube.com/watch?v=uPVQMZ4ikvM&index=9&list=PLUgRTD1mpwSVBbjrMC4rZoEzkyvLQPeAg expand=1]
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