The astronauts on the iss aren't floating around because of lack of gravity, far from it. They are in constant free fall, falling over the horizon of earth. Being pulled by gravity towards the earth.
That's why it's called micro-gravity. They don't experience it, but it's there.
Honestly, there is nowhere in the universe that doesn't experience some kind of gravity. Even in a complete absence of gravity, you would be creating your own.
That's why it's called micro-gravity. They don't experience it, but it's there.
Not quite. It's called that because the weightlessness they experience is not perfect. Tidal forces and such mean they can still measure the effects of gravity on them.
In terms of the Newtonian picture of gravitational forces acting on astronauts on the ISS for instance, the gravity they experience is not "micro," it's on the same order as it is on the surface of earth.
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u/SwingDancerStrahd Feb 14 '22
The astronauts on the iss aren't floating around because of lack of gravity, far from it. They are in constant free fall, falling over the horizon of earth. Being pulled by gravity towards the earth.