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Jet engines may run quieter in the future, with technology developed at Ohio State University.
Researchers here have developed a silencer technology that creates electrical arcs to control turbulence in engine exhaust airflow - the chief cause of engine noise. The university has applied for a patent on the design.
With the flip of a switch, pilots could turn the silencers - called plasma actuators - on and off, reducing noise around commercial airports or military airstrips, said Mohammad Samimy, professor of mechanical engineering.