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English: Simple nonlinear pendulum, instead of using both x and y coordinates, only the angle is needed to uniquely define the position of the pendulum. The constraint is the tension in the pendulum rod.
Even a simple harmonograph as described can create ellipses, spirals, figure eights and other Lissajous figures. More complex harmonographs incorporate three or more pendulums or linked pendulums together (for example, hanging one pendulum off another), or involve rotary motion, in which one or more pendulums is mounted on gimbals to allow ...
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English: Diagram of simple gravity pendulum, an ideal model of a pendulum. It consists of a massive bob suspended by a weightless rod from a frictionless pivot, without air friction. When given an initial impulse, it oscillates at constant amplitude, forever
A Catholic nun was arrested by Italian police on Thursday for bringing messages for the mafia to prisoners, police said in a news statement. Sister Anna Donelli acted on several occasions as an ...
and this is the function plotted in the graph. First, with the following Matlab code I created a file called pendulum_period.dat; then, in order to plot it, I used the Gnuplot code. This code creates a file called pendulum_period.svg. I heavily post-processed it with Inkscape. Date: 29 November 2006: Source: Own work using: Matlab, Gnuplot ...
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