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tc4v | 10 months ago

How to define "floating freely" is not easy to define. The potential energy surface of gravitation extends in 1/r wgich makes it a long range interaction. So if the earth attraction is small enough that you want to neglect it, you may still be trapped in the sun potential well. And if you can escape the sun attraction you are still prisoner of the galaxy. There is no 0 gravity, but there is various levels of neglectable gravity of course. But neglectable is always defined relative to whatever you want to measure.

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dahart|10 months ago

> potential energy surface of gravitation extends in 1/r

What does this mean? Gravity falloff is 1/r^2 right?

RunningDroid|10 months ago

GP may have used superscript that got stripped, here's a test with normal numbers followed by the superscript version : 0⁰ 1¹ 2²

9dev|10 months ago

But what about the point where your own attraction offsets that of any other nearby objects? Wouldn’t that be zero gravity, if the forces cancel out?