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The Secret Genius of Modern Life
Nov 10, 2022 59 min avg S1 E5
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Description
tvDocumentary
Hannah Fry uncovers the secrets behind the miraculous technologies of the modern world, revealing the mind-blowing stories behind their invention.
Episode 5Fitness Tracker
Hannah Fry finds out how 1970s car crashes helped us to count our steps, why WWII dog-fights led to a crucial health monitor and how fitness trackers are even being used to catch killers.
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