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A comment on Mach 3.5 Over Libya in an SR-71 Blackbird. Parent comment

Re:Mach 3.5 Over Libya in an SR-71 Blackbird by sbaiddn on Thursday March 30, 2023 @01:22PM (#35376146)
What does winter mean at 80 000 ft and Mach 3?

The jet stream is insanely fast at that altitude mixing the air, and at Mach 3 the surface weather changes in fractions of a minute.

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Re:Mach 3.5 Over Libya in an SR-71 Blackbird by psd1 on Thursday March 30, 2023 @02:57PM (#35377394)
Winter means that your nearest pole is tilted away from the sun. Your half of the planet is cooler, especially towards the poles.
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Re:Mach 3.5 Over Libya in an SR-71 Blackbird by weard_beard on Thursday March 30, 2023 @04:06PM (#35378159)
For instance the James Webb telescope gets clearer pictures in summer because in winter the astronauts breath can fog up the lens.
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