『The Volcanic Ventriloquist: How a 19th-Century Scientist Used a Krakatoa Echo to Measure the Speed of Sound Around the World』のカバーアート

The Volcanic Ventriloquist: How a 19th-Century Scientist Used a Krakatoa Echo to Measure the Speed of Sound Around the World

The Volcanic Ventriloquist: How a 19th-Century Scientist Used a Krakatoa Echo to Measure the Speed of Sound Around the World

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When the island of Krakatoa violently disintegrated in 1883, its blast wave circumnavigated the globe not once, not twice, but seven times. But how could scientists possibly measure such an invisible, planetary-scale phenomenon? The answer lay not in the ash or the tsunamis, but in the meticulous records of a global network of ordinary barometers and one brilliant, obsessive British scientist who learned to listen to the atmosphere itself. This episode follows the forensic work of William Henry Dines and the Krakatoa Committee of the Royal Society. We explore how they turned a global catastrophe into an unprecedented planetary physics experiment. By collecting thousands of barograph readings from ports and observatories worldwide, they tracked the infinitesimal jumps in air pressure—the "voice" of the volcano—as its atmospheric pulse traveled for days. This data allowed them to calculate the speed of sound with unprecedented accuracy and map the jet streams decades before aircraft could fly in them. You'll discover how a natural disaster birthed the field of atmospheric acoustics, revealing the structure of our planet's gaseous envelope. We'll unpack how this event proved the Earth's atmosphere is a single, interconnected system, where a shockwave in the Sunda Strait could be measured in London, Paris, and New York. The eruption that deafened the region ended up giving science a new way to hear the planet. #Krakatoa #AtmosphericScience #SpeedOfSound #VictorianScience #GlobalPhenomena #BarometricDetection #HistoryOfMeteorology Hosted by Ibnul Jaif Farabi. Produced by Light Knot Studios (lightknotstudios.com).
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