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Code Number: 3A95.50b
Demo Title: Revolution
Condition: Excellent
Principle: Chaotic Effects of Natural Harmonic Frequencies
Area of Study: Oscillations & Acoustics, Chaos
Equipment:
Revolution Demo.
Procedure:
See also:
3A95.50b in Oscillations/Acoustics.
Place the armature magnet over the base piece and against the mirror. Gently spin the armature. As the armature slows there will be several revolution speeds that show definite chaotic motion or vibration.
References:
- P. J. Ouseph, "Magnetic Spinner", TPT, Vol. 44, #9, Dec. 2006, p. 610.
- Michael J. Pechan, Alexandra O'Brien, and Wesley A. Burgei, "Conservation of Angular Momentum Apparatus Using Magnetic Bearings", TPT, Vol. 39, #1, Jan. 2001, p. 26.
- David Kagan, "Building a Magnetic Levitation Toy", TPT, Vol. 31, #7, Oct. 1993, p. 432.
- H. Richard Crane, "How Things Work: Magnetic Levitation (Almost)", TPT, Vol. 30, #9, Dec. 1992, p. 540.
- Martin C. Sagendorf, "49. The Cosmic Magnetic Puzzle", Physics Demonstration Apparatus, 2009. p. 223 - 225.