Sentence Examples


  • He employed as a detector of this wave a simple, nearly closed circuit of wire called a Hertz resonator, but it was subsequently discovered that the metallic microphone of D.
  • From a pinhole burner, fed through a cavity C, one side of which is closed by a membrane m; on the other side of the membrane is another cavity C', which is put into connexion with a source of sound, as, for instance, a Helmholtz resonator excited by a fork of the same frequency.
  • Interesting results are obtained by singing the different vowels into a funnel substituted for the resonator in the figure.
  • If the harmonic corresponding to the resonator is present its tone swells out loudly.
  • But the same resonator will be appreciably though less affected by waves of frequency differing slightly from its own.

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