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Code Number: 3D40.10
Demo Title: Justemp Bars - Xylophone
Condition: Excellent
Principle: Resonance in Solids
Area of Study: Oscillations & Acoustics
Equipment:
Justemp Bars.
Procedure:
This set of bars is a side by side comparison of the Just and the Tempered scale.
The two sets of tuning forks are of different pitch scales/notations. One is concert pitch scale and the other is scientific pitch notation.
References:
- Michael Ruiz, "Clash of Harmonics in Stravinsky's The Rite of Spring", TPT, Vol. 56, #4, Apr. 2018, p. 218.
- Michael C. LoPresto, "Xylophone Bars: Frequency and Length", TPT, Vol. 54, #6, Sept. 2016, p. 325.
- B. H. Suits, "Basic Physics of Xylophone and Marimba Bars", AJP, Vol. 69, #7, July 2001, p. 743.
- Stephen G. Benka, "Musical Pillars Made of Solid Granite", Physics Today, Vol. 61, #11, Nov. 2008, p. 20.
- Freier and Anderson, "Sf-5", A Demonstration Handbook for Physics.
- W-130: "Aluminum Rod in Xylophone Mode", DICK and RAE Physics Demo Notebook.
- George M. Hopkins, "Vibrating Rods", Experimental Science, p. 119.
- Raymond Bruman, "Circular Scales", Exploratorium Cookbook I, p. 71.1 - 71.4.
- 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, "#3 - A Wood Harmonicon", The Boy's Own Book of Indoor Games and Recreations, A Popular Encyclopaedia for Boys, p. 420.
- 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, "The Glass Harmonicon", The Boy's Own Book of Indoor Games and Recreations, A Popular Encyclopaedia for Boys, p. 417.