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submitted 1 year ago by stormy001 to c/news
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[-] madnoh 2 points 1 year ago

438 km/h smash wahlaueh.

FYI at 20 °C the speed of sound in air is 1,235 km/h.

[-] truckdrifter2 1 points 1 year ago

So about Mach 0.3. Neat

this post was submitted on 20 Jul 2023
7 points (88.9% liked)

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