3 ms·
> Now I have a little of Newton for you Sweet of you to bring me Newton. Always a welcome gift. But I think you misunderstand where my question is pitched. T
by sago 8y ago
> Now I have a little of Newton for you
Sweet of you to bring me Newton. Always a welcome gift.
But I think you misunderstand where my question is pitched.
The solar system is rather clumped, you see. A little Aristotle for you. :)
In all seriousness, the more dark matter is around, the less it can have mutual interactions, before it would clump, surely? Assuming such forces exist, there is a nonzero probability that two particles of dark matter will approach close enough that non-gravity forces will be significant, And they will no longer act under an ideal Newtonian gravity. Dust clouds coalesce into suns, given time. Can dark matter have its own dark-only version of the electromagnetic force? Or is that ruled out by the lack of clumping? Or is there just too little of it to make a conclusion on that? My question was entirely consistent with ol' Issac.
- acqq 8y ago> Can dark matter have its own dark-only version of the electromagnetic force? Or is that ruled out by the lack of clumping? My "feeling" is, it's not "intuitive enough" to "guess" any answer without a lot of computing: https://www.quantamagazine.org/coder-physicists-are-simulating-the-universe-to-unlock-its-secrets-20180612/ https://www.quantamagazine.org/coder-physicists-are-simulati... We think we're quite sure in our observations, so that helps, but to be able to claim how the simple laws can exactly produce what we see, we have to do a lot of work. Just like what Newton figured out was not provable before without all the computations: http://www4.ncsu.edu/~kimler/hi322/halleytale.html http://www4.ncsu.edu/~kimler/hi322/halleytale.html