3D32.15 - Variable Pitch Whistles
See Also: Galton's Whistle 3C20.15.
The nose flute shows the resonance of an adjustable cavity. Blow through the nose to produce the whistle sound. By adjusting the opening of the mouth and throat the sound can be dramatically changed.
Changing the tension of the pipe on the membrane will change the pitch of the membrane whistles. Practice to play simple tunes.
- Jay S. Huebner, N. Sundaralingam, "Simple Sound Demonstrations", TPT, Vol. 36, #1, Jan. 1998, p. 16.
- Martin Gardner, "A Puzzling Moo Horn", TPT, Vol. 32, #5, May 1994, p. 314.
- "Vibration in Pipes", TPT, Vol. 18, #5, May 1980, p. 383, also A Potpourri of Physics Teaching Ideas - Sounds, p. 253.
- Thomas B. Greenslade, Jr., "Galton's Whistle", AJP, Vol. 80, #8, Aug. 2012, p. 687.
- Se-10, "Variable Pitch Whistle", Freier and Anderson, A Demonstration Handbook for Physics.
- W- 220: "Train Whistle and Flutes", DICK and RAE Physics Demo Notebook.
- S- 58: Richard Manliffe Sutton, Demonstration Experiments in Physics.
- A. D. Bulman, "A Galton Whistle and a Bamboo Pipe", Model-Making for Physics, p. 49.
- Don Rathjen and Paul Doherty, "Membrane Aerophone", Square Wheels, 2002, p. 45.
- Jodi and Roy McCullough, "Sound with Melody Pops", The Role of Toys in Teaching Physics, p. 4.134.
- Martin Gardner, "A Puzzling Moo Horn", Science Tricks, p. 58.
- Jearl Walker, "3.3, Whistles and Whistling", The Flying Circus of Physics Ed. 2, p. 147.
- Bobby Mercer, "Straw Trombone", Junk Drawer Physics, p. 58.
- Tom Senior, "McDonald Straw Slide Whistle", PIRA Resource Room Make and Take.
- Bobby Mercer, "Air Horn", Junk Drawer Physics, p. 73.
- "Power Oboe", Toys From Trash, www.arvindguptatoys.com, 12-4-2008.
- Joseph Frick, "#152 - The Organ of Voice", Physical Technics: Or, Practical Instructions for Making Experiments in Physics and the Construction of Physical Apparatus with the Most Limited Means", p. 152.
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