07.22.2019 - By iHeartPodcasts
How does earthquake detection work and when did humans device the first method of detecting them at a distance? In this Invention two-parter, Robert and Joe first discuss the mysterious invention of ancient Chinese polymath Zhāng Héng before moving on to modern innovations. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.