11A10.13 - Larynx - Vocal Chords

Code Number:
Demo Title:
Larynx - Vocal Chords
Area of Study:
Model Larynx and Vocal Chords and Stadium Horns with Adjustable Pressure Membranes.

Show the model and move the vocal chords.

You can adjust the frequency of the horns by applying pressure to the membranes with the PVC tube or your fingers.

  • Tim Heffernan, "A Beautiful Thing - Class Trachea", Popular Mechanics, Oct. 2014, p. 84 - 85.
  • Jearl Walker, "3.60. Coughing and Sneezing", The Flying Circus of Physics, p. 170.
  • Jearl Walker, "3.4. Speaking and Signing", The Flying Circus of Physics, p. 148 - 149.
  • Martin Gardner, "A Talking Machine", Martin Gardner's Science Tricks, p. 61.
  • Jessica Boddy, Asif Ghazanfar,  "If Monkeys Could Talk", Popular Science, Winter 2019, p. 107.
  • Sara Stein, "Harrumph!", The Science Book, p. 184.
  • Herb Strongin, “Investigating How Speech, Humming, and Whistling Sounds Are Made“, Science on a Shoestring, p. 142. 

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