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Plasma-based noise cancellation could silence rooms, cars and planes

newatlas.com Plasma-based noise cancellation could silence rooms, cars and planes

EPFL researchers have developed a 100% effective, ultra-thin active noise cancelling system that uses an ionized air plasma propulsion system instead of speakers. A 17mm (0.6 inch) thick layer can block 20 Hz noise as well as a 4m (13 ft) thick wall.

Plasma-based noise cancellation could silence rooms, cars and planes
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