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Alicia Wills <br /> Palm Valley Farm LLC, Papaikou & Hakalau, Hawaii <br /> Fires Extinguished with Sound Waves <br /> Several demonstrations and experiments have shown the potential of <br /> extinguishing fires using specific sound frequencies. Here are a few notable <br /> examples: <br /> • Charles Kellogg(1926):A naturalist demonstrated extinguishing a gas <br /> flame using tonal vibrations produced by a large bow across an aluminum <br /> tuning fork.This method produced a screeching sound that could extinguish <br /> flames, suggesting that specific sound frequencies could disrupt <br /> combustion processes. <br /> DARPA's Instant Fire Suppression (IFS) Program (2012):The Defense <br /> Advanced Research Projects Agency (DARPA) showcased a system capable <br /> of extinguishing flames using sound waves.This project aimed to <br /> understand the potential of sound waves in military applications and <br /> demonstrated the effectiveness of low-frequency sound waves in <br /> suppressing fires. <br /> • George Mason University Students (2015): Seth Robertson and Viet Tran, <br /> engineering students at George Mason University, developed a handheld <br /> extinguisher that uses low-frequency sound waves to put out fires.Their <br /> prototype, costing around$600, uses an amplifier and a cardboard <br /> collimator to focus the sound waves, effectively extinguishing small, <br /> alcohol-fueled fires. <br /> These demonstrations underscore the immense potential of sound frequencies, <br /> particularly low frequencies, in extinguishing fires by disrupting the combustion <br /> process and separating fuel from oxygen.This is not just a theory, but a tangible <br /> possibility that could revolutionize fire safety. <br /> https://youtu.be/uPVOMZ4ikvM?si=x6biMJ2UNhYo2kVV George Mason University students <br /> extinguish fire with sound frequency. <br />