First example of which instrument...Send your answers to ::
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11 Years!
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Happy Birthday BoiledBeans! I guess we will just call it official and post
once a year. Just kidding. Question for the day. 1 demanded 2 to come up
with a ...
7 attempts:
First Seismometer
Seismograph
no idea about country person is SRK
device used by the chinese to detect the epicentre of earthquake.
is it the first seismometer
seismograph
Zhang Heng of China's Han dynasty invented the first seismoscope in 132 AD.
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