Double Pendulum
TSG Physics

Published on Jun 21, 2012
A double jointed pendulum hangs from a rod. Swinging the pendulum with high energy results in motion that cycles chaotically between normal modes. Swinging it with low energy results in more predictable motion. When viewed under black lights, it is easy to see that the first joint of the pendulum travels in a semicircular path, while the second joint follows varied, unpredictable trajectories.

Double pendulum

In physics and mathematics, in the area of dynamical systems, a double pendulum is a pendulum with another pendulum attached to its end, and is a simple physical system that exhibits rich dynamic behavior with a strong sensitivity to initial conditions.[1] The motion of a double pendulum is governed by a set of coupled ordinary differential equations and is chaotic.

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