Neil deGrasse Tyson

@neiltyson ↗

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Last Checked March 14, 2023

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Thu Oct 13 23:07:56 +0000 2022

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Neil deGrasse Tyson @neiltyson

Even more Mach-talk… The @NASA orbiting International @Space_Station travels 17,000 mph in the near-vacuum of space. While that’s 22x the speed of sound (at sea-level & room temperature), it’s not Mach-anything. The ISS is not traveling through a medium that has a sound-speed. — PolitiTweet.org

Posted Oct. 13, 2022

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Neil deGrasse Tyson @neiltyson

More Mach-talk… “Mach,” in reference to speeds relative to sound, is named for the nineteenth-century Austrian philosopher-physicist Ernst Mach who, among other subjects, researched shock waves in air, which we more commonly call sonic booms. — PolitiTweet.org

Posted Oct. 13, 2022

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Neil deGrasse Tyson @neiltyson

Last Mach-talk... The top speed of the @FordMustang, 5-Liter, V-8 car they call “Mach 1” is Mach 0.2 https://t.co/l9fXe8x9qX — PolitiTweet.org

Posted Oct. 14, 2022