Sonometer, Picks & bridges, Violin bow and Acc. demo

 

Code Number: 3D20.10

Demo Title: Sonometer

Condition: Excellent

Principle: Resonance in Pipes, Length vs. Frequency for a Vibrating String

Area of Study: Oscillations & Acoustics

Equipment: 

Sonometer, Picks & bridges, Violin bow and Acc.

Procedure:

No preparation necessary except routine cleaning and maintenance.  Piano wire for replacements may be obtained from the Physics Machine Shop.  Tighten the wires carefully as too much tension will warp and crack the wooden sound box.  This unit should be stored with no tension on the strings so that warping does not occur.

References:

  • Wilfried Sommer, Ralf Meier-Boke, and Nicholas Meinzer, "Hydromonochord: Visualizing String Vibration by Water Swirls", TPT, Vol. 48, #6, Sept. 2010, p. 370.
  • Paul Gluck, "Plucked String on a Shoestring Budget", TPT, Vol. 47, #1, Jan. 2009, p.13.
  • Arnold F. McKinley, "Musical Strings with Physics", TPT, Vol. 45, #1, Jan. 2007, p. 4.
  • Edward S. Ginsberg, "Figuring Violin Strings", TPT, Vol. 39, #6, Sept. 2001, p. 325.
  • "Figuring Physics", TPT, Vol. 39, #3, Mar. 2001, p. 148.
  • G.R. Davies, "A 'Relevant' Demonstration", TPT, Vol. 33, #1, Jan. 1995, p. 58.
  • Jack E. Denson, "The Vibrating Wire Revisited", TPT, Vol. 30, #6, Sept. 1992, p. 326.
  • Ben Saferstein, "Resurrecting the Pythagorean Monochord", TPT, Vol. 29, #7, July 1991, p. 438.
  • Thomas B. Greenslade, Jr., "A Vertical Sonometer", TPT, Vol. 24, #2, Feb. 1986, p. 90.
  • R. D. Edge, "The Plucked String", TPT, Vol. 17, #2, Feb. 1979, p. 124.
  • Robert Johns, "Musical String Vibrations", TPT, Vol. 15, #3, Mar. 1977, p. 145.
  • Yudai Wei, Hao Zhu, Haotian Jiang, Quanxin Luo, Shan Lin, Junqing Li, Yu Zhang, Bibo Zhao, "Playing Melodies on a Single String by Exciting Harmonics Using the Lorentz Force", AJP, Vol. 92, #3, March 2024, p. 176.
  • Thomas B. Greenslade, Jr., "Monochord", AJP, Vol. 90, #12, Dec. 2022, p. 947.
  • Gabriele U. Varieschi and Christina M. Gower, "Intonation and Compensation of Fretted String Instruments", AJP, Vol. 78, #1, Jan. 2010, p. 47.
  • P. M. Vilela, R. A. Moscoso, and D. Thompsom, "What Every Musician Knows about Viscoelastic Behavior", AJP, Vol. 65, #10, Oct. 1997, p. 1000.
  • J. Hunt, "A Vertical Sonometer", AJP, Vol. 58, #1, Jan. 1990, p. 93.
  • Judith C. Brown, "Rotating Discontinuity of the Bowed String Using Computer Graphics", AJP, Vol. 55, #10, Oct. 1987, p. 898.
  • Gerald F. Wheeler and William P. Crummett, "The Vibrating String Controversy", AJP, Vol. 55, #1, Jan. 1987, p. 33.
  • E. Brock Dale, "Classroom Demonstration of the Vibration of a Bowed String", AJP, Vol. 44, #11, Nov. 1976, p. 1077.
  • Robert E. Kelly, "Temperature Effects on The Musical Pitch of a Stretched String", AJP, Vol. 43, #11, Nov. 1975, p. 996.
  • Alva Turner, "Electromagnetic Sonometer",  AJP, Vol. 23, #3, Mar. 2025, p. 158.
  • Stephan G. Benka, "Longitudinal Waves in Piano Strings", Physics Today, Vol. 68, #7, July 2015, p. 16.
  • John C. Bryner, "Stiff-String Theory: Richard Feynman on Piano Tuning", Physics Today, Vol. 62, #12, Dec. 2009, p. 46.
  • Sj- 3, 4, 5: Freier and Anderson, A Demonstration Handbook for Physics.
  • W-120: "Melde's String - Sonometer", DICK and RAE Physics Demo Notebook.
  • W-410: "Coffee Can Oop-Goopi", DICK and RAE Physics Demo Notebook.
  • W-415: "Monochord - Pan Pipes", DICK and RAE Physics Demo Notebook.
  • George M. Hopkins, "Conduction of Sound", Experimental Science, p. 124.
  • David Kutliroff, "72, Resonance Demonstration with Musical Strings", 101 Classroom Demonstrations and Experiment For Teaching Physics, p. 158.
  • Jearl Walker, "3.34, Bowing a Violin", The Flying Circus of Physics Ed. 2, p. 160.
  • Gerard L'E Turner, Nineteenth-Century Scientific Instruments, p. 132-133.
  • Janice VanCleave, "Bzzzzz", 202 Oozing, Bubbling, Dripping, and Bouncing Experiments, p. 32.
  • Janice VanCleave, "String Music", 202 Oozing, Bubbling, Dripping, and Bouncing Experiments, p. 109.
  • Janice VanCleave, "Shorter", 202 Oozing, Bubbling, Dripping, and Bouncing Experiments, p. 109.
  • Sharon E. Finberg, "Abstract: Student Sonometer", 2005 Apparatus Competition, Salt Lake City, UT.
  • Herb Strongin, “Investigating the Sounds of Student-Built Musical Instruments“, Science on a Shoestring, p. 138.
  • Joseph Frick, "#146 - The Monochord", Physical Technics: Or, Practical Instructions for Making Experiments in Physics and the Construction of Physical Apparatus with the Most Limited Means", p. 172.
  • D. Colson, C. J. Lapp, J. A. Eldridge, "Experiment XXX", 1936 Univ. of Iowa Physics Laboratory Manual, p. 36.
  • The Queen Catalogues Vol. II, Catalogue of Physicsal Instruments, No. 4675, p. 48
3D20.10 - Sonometer