Neil deGrasse Tyson

@neiltyson ↗

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Last Checked Dec. 22, 2019

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Fri Jul 19 15:45:00 +0000 2019

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Neil deGrasse Tyson @neiltyson

Not that anybody asked, but the Moon’s orbit is spiraling away from Earth at a rate of nearly 1.5 inches (4 cm) per year. In response, Earth’s rotation rate is slowly slowing, necessitating a Leap Second to be added to the calendar, every now and then. — PolitiTweet.org

Posted July 19, 2019

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Neil deGrasse Tyson @neiltyson

Tuesday, Wednesday, Thursday, & Friday are named for the Norse Gods: Tiw, Woden, Thor (yes, Thor) & Frigga. But if you reference those days in any Romance language you recover their Classical planet names. — PolitiTweet.org

Posted July 19, 2019

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Neil deGrasse Tyson @neiltyson

Since 1972, when the correction was first introduced, 27 Leap Seconds have been added to the calendar, driven primarily by Moon-induced friction from oceanic tides sloshing on the shores. https://t.co/Z4iiVf8LuC — PolitiTweet.org

Posted July 19, 2019