The blank , a device that measures there strength of an earthquake was invented during the Han dynasty. Fill in the blank
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Ответ:
Seismometer
Explanation:
The Han dynasty was established by Liu Bang a rebel and ruled by the house of Liu. This lasted from 202 BC - 220 AD, and it was the second imperial dynasty of China.
The seismometer was created by Zhang Heng a Chinese astronomer in the year 132 AD. This device can detect the ground's movement during an earthquake, showing the direction of the earthquake no matter the distance.
Ответ: