Ancient Earthquake Detector The Incredible Seismometer

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=cD1ye1s9n8o

🌍🌍🐉Did you know the first earthquake detector was invented in 132 CE by Zhang Heng in ancient China? • The seismometer featured a bronze vessel with dragon heads that dropped a ball into a toad’s mouth to show the direction of an earthquake. This groundbreaking invention changed the world of seismology forever! • #AncientTech #Seismometer #ZhangHeng #IncredibleInventions #EarthquakeScience #DidYouKnow #ScienceFacts #ViralScience #HistoryOfScience

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