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hermitcrab
on Aug 12, 2024
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Interstellar movie black hole implemented with Ein...
Assuming no air resistance and 10m/s^2 gravity. I calculate that you would have to be doing ~1,100m/s (~mach 3.2 at sea level) straight up at 37km to reach 100km. Or ~1,600m/s (~mach 4.7 at sea level) at 45 degrees to perpendicular.
wizzwizz4
on Aug 12, 2024
[–]
Seems about right.
https://en.wikipedia.org/wiki/Project_HARP
(1966) got 2100m/s from a ground-based cannon: this got the projectile to 179km.
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