到了16世纪，人们发明了摆钟，但钟摆摆动的幅度很大，因此效率不高。
By the 16th century, a pendulum clock had been devised, but the pendulum swung in a large arc and thus was not very efficient.
表2显示钟摆摆动的实验结果。
Table 2 shows the results of an investigation about swinging pendulum.
钟摆摆动计秒。
钟摆摆动计秒。
钟摆摆动。
没有了碗与碗碰撞的叮当声，没有了餐桌上的大家的欢笑声，没有了钟摆摆动的嘀答声和钟的报时声，完全是一片寂静。
No bowls clanging, no laughter over the dinner table, no ticking or chiming of the clock-all was still.
没有了碗与碗碰撞的叮当声，没有了餐桌上的大家的欢笑声，没有了钟摆摆动的嘀答声和钟的报时声，完全是一片寂静。
No bowls clanging, no laughter over the dinner table, no ticking or chiming of the clock-all was still.
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