Nov
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TIL on Nov 13, 1946, NY, pilot Curtis Talbot and scientist Dr. Vincent Schaefer, working for GE Research, released three pounds of dry ice (frozen carbon dioxide) into the clouds at 14,000 ft. They looked back to see long streamers of snow. They had created the world’s first human-made snowstorm.
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whatilearned
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TIL U.S. railroads adopted the Standard Time System on the “Day of Two Noons.” On Nov. 18, 1883, the Univ. of Pittsburgh’s observatory telegraphed railroads at the exact moment of high noon under the 90th meridian line to reset/synchronize their clocks, dissolving the 100+ timezones previously used.
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whatilearned
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TIL Wilhelm Röntgen discovered X-rays in Nov, 1895. The very next month, he took the first X-ray image using his wife’s hand; 2 months after that, X-rays were being used in multiple hospitals across the globe. By May, Thomas Edison developed the first mass-produced X-ray imaging device.
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whatilearned
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TIL the first episode of Dr. Who, one of television’s longest-running shows, debuted 23 Nov. 1963. However, only a small number of people were aware of it. Why? The then President of the USA, John F. Kennedy, was assassinated while touring Dallas, Texas, just hours before the show was set to debut.
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whatilearned
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