N an obsolete instrument that indicates the occurrence of an earthquake 简易地震仪 → compare seismograph
I was the compass, printing descendants, I was PI, children and grandchildren Seismoscope.
我是指南针、印刷术的后裔，我是圆周率、地动仪的子孙。
The earliest "seismoscope" was invented by the Chinese philosopher Chang Heng in A. D. 132.
而最早的“验震仪”是中国的学者张衡在公元132年发明的。
In 1703, Frenchman Feuille invented the first seismic instrument of Europe — the mercury seismoscope (Dewey, 1969).
1703年法国Feuille发明欧洲第一台地震仪器——水银验震器(Dewey, 1969)。
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