тушение огня звуковыми волнами.
Говорят, звук частотой 30-60 герц может отделить кислород от топлива, считают студенты университета Джорджа Мейсона Вьет Тран и Сет робертсон.
Волна давления гуляет вперед-назад, отодвигая воздух от пламени, и этого расстояния достаточно чтоб предотвратить повторное возгорание..
(по мне чепуха, но у них вроде работает)
Can we extinguish fire with sound waves?
It may seem outlandish, but George Mason University engineering students Seth Robertson and Viet Tran say they’ve developed a way to extinguish fire with sound waves.
How can this be?
Low-frequency sound waves in the 30 to 60 hertz range — can apparently separate oxygen from fuel,” Tran said, in a GMU news release.
“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.
Article:
It may seem outlandish, but George Mason University engineering students Seth Robertson and Viet Tran say they’ve developed a way to extinguish fire with sound waves. The video above appears to prove them right. How can this be? ...
// www.huffingtonpost.com
Reference:
FAIRFAX, Va. (WUSA9) — Two George Mason University students have designed a device that uses sound waves to put out fires
// www.wusa9.com