Tippy Top



1q60.30b.jpg (89270 bytes)1q60.30c.jpg (130253 bytes)


MPEG Movie (2.66 MB)

Basic Saucer Physics

content.gif (1503 bytes)
 Code Number :   1Q60.30  

Disclaimer:

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.

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.  
conbot.gif (53 bytes)

 

   References

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.



Mail questions or comments about this site to:  Dale Stille

The University of Iowa 2011. All rights reserved.