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post #31 of 33
Quote:
Originally Posted by Goaky View Post
A rock with a surface consisting of 71% water? I don't think so.
There are many asteroids that likey have propotionally more water than earth.

Earth isn't 71% water, the surface is. All the surface water on earth add up to much less than a fraction of 1% of Earth's mass.

Quote:
Originally Posted by MagicBox View Post
That's what negative zero G means But a huge room of 1km in diametre would still be 0.2% of the total diametre. If you were to walk at the edge the pull would be trivially small as each side's gravity would practically cancel out. An idea would be to spin up the asteroid to create artificial gravity.

Asteroids would make very nice natural space ships if you ask me
If you hollowed it out and spun it fast enough to make usable gravity push outward (or even if you didn't hollow it out), what exactly would be holding it together?
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post #32 of 33
Quote:
Originally Posted by BlackVenom View Post
...Yes, it is quite a large rock.
put that in your pipe and smoke it
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post #33 of 33
Quote:
Originally Posted by Blameless View Post
There are many asteroids that likey have propotionally more water than earth.

Earth isn't 71% water, the surface is. All the surface water on earth add up to much less than a fraction of 1% of Earth's mass.



If you hollowed it out and spun it fast enough to make usable gravity push outward (or even if you didn't hollow it out), what exactly would be holding it together?
What about the rock itself? Ofcourse you're not going to hollow it out right unto underneath the the surface. Spin speed doesn't need to be so high that the shell couldn't hold itself together any more. Just see what kind of G-force is exerted on your body in your average amusementpark rollercoaster. Some of them actually advertize zero-g even for brief moments.
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