Discover the World’s First Earthquake Detector, Invented in China 2,000 Years Ago

Discover the World’s First Earthquake Detector, Invented in China 2,000 Years Ago

Discover the World’s First Earthquake Detector, Invented in China 2,000 Years AgoThe Renais­sance did not, strict­ly speak­ing, occur in Chi­na. Yet it seems that the Mid­dle King­dom did have its Renais­sance men, so to speak, and in much ear­li­er times at that. We find one such illus­tri­ous fig­ure in the Han dynasty of the first and sec­ond cen­turies: a states­man named Zhang Heng (78–139 AD), who […]