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September 28, 2018 03:00 pm -04

The ancient earthquake detector that puzzled modern historians

Modern seismographs are extremely sensitive pieces of equipment. By recording the slightest movements of laser light or magnets, these devices can detect the smallest of rumbles even when we can't sense them. There are networks of thousands upon thou...

Original Link: https://www.engadget.com/2018/09/28/backlog-zhang-heng-seismoscope/

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Engadget

Engadget is a web magazine with obsessive daily coverage of everything new in gadgets and consumer electronics. Engadget was launched in March of 2004 in partnership with the Weblogs, Inc. Network (WI

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