It may just look like a badass piece of ancient art, but when Chinese inventor and astronomer, Zhang Heng, created the seismoscope around 130 AD, he actually invented the first known earthquake detector.

它可能看起来像是一件糟糕的古代艺术品，但当中国发明家和天文学家张衡在公元 130 年左右创造地震仪时， 他实际上发明了第一个已知的地震探测器。