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Pendulum
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=== Pendulum wave === [[File:pendulum_wave_animation.svg|thumb|upright|link={{filepath:pendulum_wave_animation.svg}}|[[SVG animation]] of a pendulum wave]] A [[pendulum wave]] is a physics demonstration and [[kinetic art]] comprising several uncoupled pendulums with different lengths. As the pendulums oscillate, they appear to produce travelling and standing waves, beating, and random motion.<ref>Harvard Natural Sciences Lecture Demonstrations, [http://sciencedemonstrations.fas.harvard.edu/presentations/pendulum-waves ''Pendulum Waves'']</ref>
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