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01/31/11(Mon)09:46 No.23077519>>23077340
in during overthinking:
in a 9.8m/s^2 gravity field, and on an earthlike planet, you can either fly at orbital velocities, or in a breathable atmosphere, not both
a 400km orbit takes about 7.5km/s, (that's kilometers per second, or about 16,000 miles per hour) and that's a pretty low orbit, where atmospheric drag results in an orbital decay of a kilometer a month, which would result in an uncontrolled reentry after a year or two
you can fly lower, where there's air, but doing mach 20 could singe a mane, I tell you what
the only possible conclusion is that equestria is much, much smaller than the earth, maybe moon-sized, with correspondingly lower gravity and lower orbital speed |
