CNET | SEE IT: Two engineering students put out fire with sound New York Daily News A pair of George Mason University engineering students built a handheld fire extinguisher that puts out flames with low-frequency sound. Seniors Viet Tran and Seth Robertson created the souped-up subwoofer for an advanced design class after they read ... Engineering students extinguish fire with sound Watch these engineering students extinguish a fire using sound waves VIDEO: Introducing a Fire Extinguisher Fuelled by Sound |