3D40.50 - Musical Goblets or Bowl

Code Number:
3D40.50
Demo Title:
Musical Goblets or Bowl
Condition:
Excellent
Principle:
Resonance in Pipes
Area of Study:
Acoustics

Disclaimer

Equipment:
Violin Bow, Wine Goblet, and Vinegar.
Procedure:

NOTE:  The wine glasses for this demonstration will be in the 1D50.33 - Carry a Ball section.

Practice with the bow will be needed for the wine goblet resonance.  Wet a finger with vinegar and rub around the rim of the goblet.

Hold the bowl in your palm supported by three fingers, or set it on the table supported by the attached rubber feet.  Rub the wooden rod slowly around the rim of the bowl until the bowl sings.

References:
  • Wojciech Dindorf, "The Cognac Kick", TPT, Vol. 38, #2, Feb. 2000, p. 118. 
  • Gorazd Planinšič, "More Fun with Singing Wineglasses", TPT, Vol. 38, #1, Jan. 2000, p. 41.
  • Thomas D. Rossing, "Holographic Interferometry of Vibrating Objects", TPT, Vol. 30, #4, Apr. 1992, p. 219.
  • Thomas D. Rossing, "Wine Glasses, Bell Modes, and Lord Rayleigh", TPT, Vol. 28, #9, Dec. 1990, p. 582.
  • Tal Arane, Ana K. R. Musalem, and Moti Fridman, "Coupling Between Two Singing Wineglasses", AJP, Vol. 77, #11, Nov. 2009, p. 1066.
  • Yih-Yuh Chen, "Why Does Water Change the Pitch of a Singing Wineglass the Way it Does?", AJP, Vol. 73, #11, Nov. 2005, p. 1045.
  • Robert E. Apfel, "'Whispering' Waves in a Wineglass", AJP, Vol. 53, #11, Nov. 1985, p. 1070.
  • A. P. French, "In Vino Veritas: A Study of Wineglass Acoustics", AJP, Vol. 51, #8, Aug. 1983, p. 688.
  • Jearl Walker, "The Amateur Scientist: Edge Waves Form a Spokelike Pattern When Vibrations Are Set Up in a Liquid", Scientific American, Vol. 251, #6, Dec. 1984, p. 130.
  • G. D. Freier and F. J. Anderson, "Se-8", A Demonstration Handbook for Physics.
  • "W-155. Gong, Hat Stretcher & Goblet", DICK and RAE Physics Demo Notebook, 1993.
  • "W-160. Water Goblet - Variable Depth", DICK and RAE Physics Demo Notebook, 1993.
  • Wallace A. Hilton, "S-7d", Physics Demonstration Experiments.
  • Carson I. A. Ritchie, "Musical Glasses", Making Scientific Toys, p. 62.
  • Pat Murphy, Ellen Macaulay, and the Staff of the Exploratorium, "Singing Wineglass", Exploratopia, p. 216.
  • Martin Gardner, "Franklin's Armonica", Entertaining Science Experiments with Everyday Objects, p. 122.
  • Jearl Walker, "3.43. Rubbing Wineglasses", The Flying Circus of Physics Ed. 2, p. 164.
  • Jearl Walker, "2.71. Edge Waves", The Flying Circus of Physics Ed. 2, p. 111.
  • Christopher P. Jargodzki and Franklin Potter, "162. Wineglass Singing II", Mad About Physics, p. 60, 204.
  • Christopher P. Jargodzki and Franklin Potter, "161. Wineglass Singing I", Mad About Physics, p. 60, 204.
  • Janice VanCleave, "Humming Glass", 201 Awesome, Magical, Bizarre, & Incredible Experiments, p. 90.
  • Janice VanCleave, "Singing Glass", Physics for Every Kid - 101 Easy Experiments in Motion, Heat, Light, Machines, and Sound, p. 218 - 219.
  • Janice VanCleave, "Spoon Bell", 201 Awesome, Magical, Bizarre, & Incredible Experiments, p. 90.
  • Robert Ehrlich, "J.10. Rubbing the Edge of a Wine Glass", Turning the World Inside Out and 174 Other Simple Physics Demonstrations, p. 135 - 136.
  • "The Musical Glass", Physics for Kids - 49 Easy Experiments with Acoustics, p. 52.
  • "The Glass Armonica", Uncle John's 'Unstoppable' Bathroom Reader, p. 449.
  • Dr. Gordon Stables, R.N., C. Stansfeld Hicks, J. N. Maskelyne, Rev. Harry Jones, M.A, Dr. Stradling, Captain Crawley, Rev. A. n. Malan, M.A., F.G.S., and Many Others, "#2 - Musical Tumblers", The Boy's Own Book of  Indoor Games and Recreations, A Popular Encyclopaedia for Boys, p. 419.



Disclaimer: These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist.  The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose.  The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources.  Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks.  These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage.  Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.