The seismographs we are using nowadays are some sensitive pieces of equipment. Even if we can’t see a small rumble, this devices can detect them using laser light or even magnets. The globe is impacted with such devices, and each one of them sends signals about what can happen. Due to this amazing technology, researchers are getting a better understanding of this geological event to it will become more comfortable and more accessible to hide from it before it hits. Our seismographs are very developed, but they do not look so different from the first such device ever invented. It was first developed 2000 years ago when people were not even familiar with what an earthquake is.
The inventor of the first seismograph is Shang Heng who during the Han dynasty lived in China and was keen on learning. He was good at science, astronomy, mathematics, cartography, engineering, poetry and a lot of other fields of study. He was honored for his mathematics skills by Emperor An when he was invited to the imperial court in his mid-30s.
He was one of the mathematicians who worked on calculating the pi and mapping stars all at the same time with being an inventor. He made the inflow clepsydra possible for usage, and he was also the inventor of the armillary sphere which uses water for power. However, his most famous invention is the first seismoscope.
He went with this invention to the imperial court which was located in the capital of Luoyang in AD 132, not long before he died in AD 139. Unfortunately, the official seismoscope is lost, but according to historical, it was a large bronze instrument in the shape of a vase or urn.
Theoretically, he stays at the base of every seismograph we have nowadays.