Two engineering students Viet Tran and Seth Robertson from George Mason University have introduced a prototype fire extinguisher that uses sound wave to put out fires.They started this project as a part of a senior research project, and after one year of struggle, they have invented a fire fighting device.They spend $600 of their own money to fund their project.
They started work on project with basic concept that sound waves are pressure waves as well as mechanical waves.Due to the to and fro motion, pressure waves displace some of the oxygen.If the sound waves in the range of 30 to 60 Hertz separate the oxygen from the fire, as a result the fire will blasts out.
The two students said, it has been tested on alcohol fire at this time.One of the major problem is, it does not cool the fuel, the fires that go out will reignite because of hot material.But they hope that their small fire extingusher that works without chemicals or water, could be used in a kitchen as a tool against small fires.
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