01:38 Watch oscillations at work. Fifteen uncoupled simple pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, and (seemingly) random motion.
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Mesmerizing Pendulum Waves [VIDEO] dancing together, showing oscillations at work http://t.co/xindss2L http://t.co/cyGsqONN
Mesmerizing pendulum waves dancing together [VIDEO] http://t.co/T3G9YBAHtO http://t.co/YLsQNkfRti