Tippy Top

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Basic Saucer Physics

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 Code Number :   1Q60.30  



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Condition :   Fair  
Principle :   Conservation of Angular, Momentum about Vertical Axis  
Area of Study :  Mechanics  
Equipment :   Tippy - Top.   
Procedure :   The Tippy - Top, old fashion top, and the football will all act in the same manner. When spun the frictional torques will cause all of them to rotate about their statically unstable axis.  
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Rod Cross, "Spherical Tippe Tops", TPT, Vol. 51, # 3, March 2013, p. 144.

George Barnes,  "Tippy Top Thoughts",  TPT, Vol. 25, # 4, Apr. 1987, p. 200.

Ralph Baierlein, "Spinning Footballs and Class Rings",  TPT, Vol. 24, # 6, September 1986, p. 361.

Brother James Mahoney, Kenneth W. Ford, "Why Does a Finger Ring Flip?", TPT, Vol. 16, # 5, May 1978, p. 322.

D. Rae Carpenter Jr., "L'Eggs Demonstrations",  TPT, Vol. 15, 1977, p. 188.

George D. Freier, "The Tippy-Top", TPT, Vol. 5, # 1, Jan. 1967, p. 36.


Harry Soodak, "A Geometric Theory of Rapidly Spinning Tops, Tippe Tops, and Footballs", AJP, Vol. 70, # 8, Aug. 2002, p. 815.

C. G. Gray, B. G. Nickel, "Constants of Motion for Nonslipping Tippe Tops and Other Tops with Round Pegs", AJP, Vol. 68, # 9, Sept. 2000, p. 821.


Mu-17,  Freier and Anderson,  A Demonstration Handbook for Physics.


M- 788,  "Stability of Spinning Objects",  DICK and RAE Physics Demo Notebook.


13- 3, Harry F. Meiners, Physics Demonstration Experiments, Vol. I,  p. 297.


Jearl Walker,  "The Physics of Spinning Tops, Including Some Far-Out Ones",  The Amateur Scientist, March, 1981.


Jearl Walker, "1.106, Tippy Tops", The Flying Circus of Physics Ed. 2, p. 53.

2.73,  Jearl Walker, "Tippy Tops", The Flying Circus of Physics with Answers.

"225, The Tippe Top",  Christopher P. Jargodzki and Franklin Potter,  Mad About Physics, p. 89, 226.

Robert Ehrlich, "Tippy Tops and Spinning Electrons", Why Toast Lands Jelly-Side Down, p. 183-184.

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