In 1665, Lord Christiaan Huygens found that two pendulum clocks, hung in the same wooden structure, oscillated spontaneously and perfectly in line but in opposite directions: the clocks oscillated in ...
ANN ARBOR, Mich.---Connect one pendulum to another with a spring, and in time the motions of the two swinging levers will become coordinated. This behavior of coupled oscillators---long a fascination ...