I don't know why the warping effect is "obvious". All space is expanding, including that inside galaxies but the gravity effect keeps the expansion from causing the galaxy to spread out. Imagine a soft disk sitting on top of a balloon that is being blown up. The balloon surface (space) both under and around the disk is expanding, but the object keeps its size because of its internal forces. It's not as if there's some boundary at the edge of galaxies at which expansion starts.
On Tuesday, January 21, 2014 3:01:03 AM UTC+11, Edgar L. Owen wrote: > > All, > > > Here's one more theory from the many in my book on Reality: > > > As Misner, Thorne and Wheeler note briefly in their book on Gravitation, > INTERgalactic space is continually expanding with the Hubble expansion, > however INTRAgalactic space is NOT expanding because it is gravitationally > bound. > > Now the obvious effect of this (as I'm the first to have pointed out so > far as I know) is that space will necessarily be warped at the boundaries > of galaxies, and as is well know from GR any curvature of space produces > gravitational effects, and of course dark matter halos around the EDGES of > galaxies were invented to explain the otherwise unexplained extra > gravitational effects on the rotation of galaxies. > > Thus, this simple effect of space warps around the boundaries of galaxies > caused by the Hubble expansion may be the explanation for the dark matter > effect. > > It may or may not be the cause of the entire effect, but it certainly must > be having SOME effect, and over the lifetime of the universe one would > expect that warping effect to be quite large. > > And there is nothing to prevent these warps, once they are created, to > have a life and movement of their own, as we now know that dark matter is > not just concentrated around galactic halos but may indicate where they > used to be.... > > I'd be interested to see if anyone else sees how this effect might explain > dark matter... > > Edgar > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
