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荷兰科学家惠更斯研究了单摆的振动,并提出了单摆定律:单摆做简谐运动的周期与摆长的二次方根成正比,与当地的重力加速度的二次方根成反比。并且确定了如下的单摆周
Dutch scientist Huygens studied the vibration of a pendulum and proposed a pendulum law: the period of a simple pendulum to make a harmonic motion is proportional to the square root of the pendulum length, and inversely proportional to the square root of the local gravitational acceleration. And the following pendulum cycle was determined