Huygens saw that a pendulum traversing a circular arc completed small oscillations faster than large ones.

 
  • 惠更斯觀(guān)察到,若擺錘沿著(zhù)圓弧擺蕩,那麼擺動(dòng)幅度小的時(shí)候會(huì )比幅度大時(shí)振蕩得快。
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