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Answer: The first earthquake detecting/measuring device invented by Zhang Heng from China. Now replaced by the seismoscope. More about the device here: http://en.wikipedia.org/wiki/Seismograph#Zhang_Heng.27s_seismoscope
18 Answers:
Seismograph. Used in the wake of earthquakes
Earthquake prediction machine. something to do with the egg/ball being dropped from the Dragon's mouth indicating an earthquake.
used for sensing earthquakes beforehand...
now, we have seismographs....
It is used to detect earthquake...
This was used for measuring / knowing if earthquakes are coming......
Zhang Heng's seismometer.
Seismograph
A clock....!
Its a seismometer, used to measure waves generated by volcanoes/earthquakes etc
Seismoscope (Earthquake intensity measurement)
THE DRAGON JAR
Seismometer
Earthquake predicting
Earliest seismograph
used to measure from where the earthquake came
Seismometer or Seismoscope
Earthquake detection
It's an ancient Chinese Seismometer
used for detecting Earthquakes.
Replaced now my the modern Seismographs etc.
seismometer
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