china
frog
they used a seismograph
It was invented in china in ancient tokyo by your mother
Perhaps the earliest seismograph was invented in China A.D. 136 by a m an named Choko.
The seismograph was invented by the Chinese polymath Zhang Heng in 132 AD during the Han dynasty. Zhang Heng's seismoscope was an early version of today's seismograph, used to detect and measure earthquakes.
a CHINESE man named CHOKO bahahahhaahahhahahah
If for ancient China, (i am assuming because you said did) it is seismograph
It was created during the Han Dynasty in China....
Yes, Choko did not invent the seismograph. The seismograph was invented by the Chinese polymath Zhang Heng in 132 AD during the Han Dynasty. Zhang Heng's seismograph could detect and record earthquakes from a distance.
when zhang heng who seismograph invented it now people now when a earthquakes
The seismograph was invented by the Chinese polymath Zhang Heng in 132 AD during the Han dynasty. Zhang's seismoscope was able to detect and indicate the direction of earthquakes from hundreds of miles away.
It's important because it told the ancient Chinese which direction the earthquakes were from up to 310 miles away.