4 ms·
"Microgravity" is the usual term for orbit - it's never quite zero, due to irregularities in the Earth's mass distribution, the tidal differential across the sp
by vikingerik 4y ago
"Microgravity" is the usual term for orbit - it's never quite zero, due to irregularities in the Earth's mass distribution, the tidal differential across the span of your body or the spacecraft, and also influence from the moon and sun. There are also nonzero forces other than gravity acting on the spacecraft, in atmospheric drag, radiation pressure, and thermal emission, so "free fall" isn't quite fully correct either.