To: Lurker
Then I should run over tons of it with my lawnmower
Yes, but in very small amounts. As I tried to indicate, it only exists in large amounts over a very vast volume of space.
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So it exerts gravitational force on ordinarymatter but isnt affected by its own gravitational force. Do I have that right?
No. It doesn't clump because it has no electromagnetic or strong nuclear force, which is what causes matter to clump due to friction. Things like the earth are held together by gravity, but only because friction slows atoms down as they clumps together, rather than flying past one another.
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Or your premise is wrong
That has always been a possibility to cosmologists. Either Dark Matter exists or we don't completely understand the full nature of gravity over great distances. But one thing is certain: visible matter in the universe doesn't account for the gravitational interactions that we are observing.
To: Telepathic Intruder
but only because friction slows atoms down as they clumps together, rather than flying past one another.
You sure about that?
L
67 posted on
12/06/2017 7:27:25 PM PST by
Lurker
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