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how is empty space expanding?

how is empty space expanding?

Science

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what's the best guess as to why space is expanding? Dark energy is just other dimensions "pushing" on us. String theory says there must be 11 dimensions for the math to work.

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Originally posted by ogb
what's the best guess as to why space is expanding? Dark energy is just other dimensions "pushing" on us. String theory says there must be 11 dimensions for the math to work.
Momentum.

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Originally posted by FreakyKBH
Momentum.
momentum = mass * velocity

Empty space has neither mass (the trivial virtual particles count for nothing here) nor velocity thus no momentum.
You are taking complete gibberish yet again.

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Originally posted by humy
momentum = mass * velocity

Empty space has neither mass (the trivial virtual particles count for nothing here) nor velocity thus no momentum.
You are taking complete gibberish yet again.
Your counter is broken.

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Originally posted by FreakyKBH
Momentum.
Can you be more specific as to how "momentum" describes the expansion of space?

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Originally posted by ogb
what's the best guess as to why space is expanding?
If it didn't expand there would be no universe.

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Originally posted by twhitehead
If it didn't expand there would be no universe.
That explains 'how we know' but somehow I don't think that was the kind of "why" he meant.
I personally don't have the necessary expert knowledge to even come close to adequately answering what I assume was his intended meaning of his question.

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Originally posted by humy
I personally don't have the necessary expert knowledge to even come close to adequately answering what I assume was his intended meaning of his question.
Same here.

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Originally posted by humy
That explains 'how we know' but somehow I don't think that was the kind of "why" he meant.
I personally don't have the necessary expert knowledge to even come close to adequately answering what I assume was his intended meaning of his question.
Not only that, it explains the how of how it's happening.

Guess it isn't gibberish after all, huh.

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Originally posted by FreakyKBH
Not only that, it explains the how of how it's happening.

Guess it isn't gibberish after all, huh.
Then enlighten us poor broken beings with your greatly expanded knowledge.

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Originally posted by KazetNagorra
Can you be more specific as to how "momentum" describes the expansion of space?
In my mind, I envision creation as the drop of the stone into a pond, with the effect of rippling outward.
I believe what we "see" are the reverberations of that splash, somewhat akin to the diminishing vibrations of a cymbal crash.

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Originally posted by FreakyKBH
In my mind, I envision creation as the drop of the stone into a pond, with the effect of rippling outward.
I believe what we "see" are the reverberations of that splash, somewhat akin to the diminishing vibrations of a cymbal crash.
Do you know what momentum is?

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Originally posted by KazetNagorra
Do you know what momentum is?
Do you understand English?

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Originally posted by KazetNagorra
Do you know what momentum is?
You see what I mean about the arrogant Kaze or is it Ezak?

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Originally posted by FreakyKBH
Do you understand English?
Fairly well. Your post suggests to me an experience with a hallucinogenic substance, but not an understanding of physics.

https://en.wikipedia.org/wiki/Momentum

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