Hum - Science

Science

  • Hum (sound), a sound produced with closed lips, or by insects, or other periodic motion
  • The Hum, a phenomenon involving a persistent and invasive low-frequency noise of unknown origin which occurs in some geographic locations.
  • Mains hum, an electric or electromagnetic phenomenon that causes a low frequency (50 or 60 Hz) audible signal
  • Venous hum, a humming sensation caused by normal pressure in the jugular veins

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