1,800 years ago China had one of the most intriguing technologies. Now is the point of resuscitating the dragon that detects earthquakes – En un click
Almost two thousand years ago, during the Han dynastythe Chinese scholar ZHANG HENG He designed a device that, according to historical chronicles, could detect distant earthquakes and even point out his address. That invention, called HouFeng Didong Yiit was a mechanical gadget that had the dragon as the main actor. Now China is about to […]
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