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What are simple experiments to demonstrate chaos?

April 26, 2017chaos demonstrate experiments simple

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What are simple experiments to demonstrate chaos?

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There are many “chaos toys” on the market. Most consist of some sort of pendulum that is forced by an electromagnet. One can of course build a simple double pendulum to observe beautiful chaotic behavior see • http://quasar.mathstat.uottawa.ca/~selinger/lagrange/doublependulum.html Experimental Pendulum Designs • http://www.maths.tcd.ie/~plynch/SwingingSpring/doublependulum.html Java Applet • http://monet.physik.unibas.ch/~elmer/pendulum/ Java Applets Pendulum Lab My favorite double pendulum consists of two identical planar pendula, so that you can demonstrate sensitive dependence [2.10], for a Java applet simulation see http://www.cs.mu.oz.au/~mkwan/pendulum/pendulum.html. Another cute toy is the “Space Circle” that you can find in many airport gift shops. This is discussed in the article: • A. Wolf & T. Bessoir, Diagnosing Chaos in the Space Circle, Physica 50D, 1991. One of the simplest chemical systems that shows chaos is the Belousov-Zhabotinsky reaction. The book by Strogatz [4.1