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Thinking about the Long Now Foundation light installation at Burning Man showing rotation of the earth, and how the 'Rabbit' on runways is the same idea. So how fast is the rabbit moving? it's about 800 meters and triggers every half second so that's about 1.6 km/sec or mach 5

Scott Manley

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37,327 次观看 • 3 天前 •via X (Twitter)

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