From: "JACK L. URETSKY (C)1998; HEP DIVISION, ARGONNE NATIONAL LAB ARGONNE, IL 60439" <JLU@hep.anl.gov>
Date: Wed, 10 Jun 1998 8:54:19 -0500
Aha! Now we have it.
The motion of the pendulum is chaotic.
*******************************************
I seem to have left out some of the "goodies" of the problem.
* The pendulum has 2 degrees of freedom.
* The driving force is a linear driving force applied at the pivot.
Imagine a simple pendulum tied to the blade of a sabre saw with
adjustable frequency. (The saw blade in this case oscillates oscillates
horizontally.)
Fun, eh?
- Jim
Clarence Bennett wrote:
But what is the form of the driver?
_ . . _ _ _ _ . . . _ . . . _ _
James A. Currie Weston High School
curriej@meol.mass.edu Science Department
Phone (781) 899-0620 x7146 444 Wellesley St.
Fax (781) 647-1851 Weston, MA 02193
************************************************
regards,
Jack
"I scored the next great triumph for science myself,
to wit, how the milk gets into the cow. Both of us
had marveled over that mystery a long time. We had
followed the cows around for years - that is, in the
daytime - but had never caught them drinking fluid of
that color."
Mark Twain, Extract from Eve's
Autobiography