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1 янв 132 г. - The Ancient Chinese created the Earthquake detector

Описание:

It was created in the Han Dynasty by the excellent inventor Zhang Heng in Ancient China. It actually had a really big impact on society because it could detect Earthquakes so humans can take protection in advance.

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Ancient China Timeline

ByDeepayan C
19 ноя 2018
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1 янв 132 г.
Сейчас
~ 1895 г назад
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