The first clock with good enough mechanics to even count seconds was made by Christiaan Huygens, using a pendulum just under a meter long that swung once a second.
第一个机械性能好到可以计时的时钟是由克里斯蒂安·惠更斯制造的，它使用的钟摆不到一米长，每秒摆动一次。
Christiaan Huygens
原声例句
PBS趣味科普
中文百科
克里斯蒂安·惠更斯
克里斯蒂安·惠更斯（Christiaan Huygens，1629年4月14日－1695年7月8日），荷兰物理学家、天文学家和数学家，土卫六的发现者。他还发现了猎户座大星云和土星光环。
英语百科
Christiaan Huygens 克里斯蒂安·惠更斯
Christiaan Huygens, FRS (/ˈhaɪɡənz/ or /ˈhɔɪɡənz/; Dutch: [ˈɦœyɣə(n)s]) (Latin:Hugenius) (14 April 1629 – 8 July 1695) was a prominent Dutch mathematician and scientist. He is known particularly as an astronomer, physicist, probabilist and horologist.
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