Free Rotation of an Asymmetric Top
This Demonstration shows the general properties of the free rotation of an asymmetric top using a body-fixed coordinate system. The homogeneous solid brick plays the role of the asymmetric top.
Chapter 37 of , “The Asymmetric Top”, states that "… the top doesn’t at any time return exactly to its initial position."
Go to http://arithmetic.eu.pn/html/downloads.html to download the full version of this Demonstration.
 L. D. Landau and E. M. Lifshitz, Mechanics, Vol. 1 (Course of Theoretical Physics), 3rd ed., New York: Butterworth–Heinemann, 1976.
 D. Schwalbe, A. Slavik, and S. Wagon, VisualDSolve [online], 2nd ed., Champaign, IL: Wolfram Research, 2009. http://www.wolfram.com/books/profile.cgi?id=7543.