By Science & Technology Desk Published: October 2023 A transatlantic flight can be an exhausting endeavor. For hours on end, passengers are subjected to a relentless, low-frequency roar—a punishing combination of engine turbine thrum, roaring wind shear, and cabin pressurization hum. For decades, the only remedy was passive attenuation: bulky earmuffs, foam earplugs, or simply […]
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