My question has nothing to do with modyfying gravity
On Fri, Nov 29, 2013 at 3:58 PM, John Clark <[email protected]> wrote: > On Fri, Nov 29, 2013 at 3:31 PM, Richard Ruquist <[email protected]>wrote: > > > Does the Bullet cluster display any of the characteristics expected of a >> Dark-Matter-less galaxy such as a spinning galaxy blowing apart.? >> > > For years people have tried to modify the law of gravitation so that it is > consistent with what we see with our telescopes but it just doesn't work. > If you observe the Bullet Cluster what you see is 2 clusters colliding and > the regular matter that we can see staying in the center just as we'd > expect regular matter to do and the Dark Matter (detected by gravitational > lensing) remained spread out just as you'd expect Dark Matter to do. There > is no way modifying gravity can explain that. > > And in addition, if you tinker with gravity so that galaxies like our own > Milky Way hold together and behave as they should then galactic clusters > like the Local group don't behave as we see them do. And if you tinker with > gravity in another way so that galactic clusters behave as they do in our > telescopes then individual galaxies don't. But if you invoke Dark Matter > then everything comes out fine. > > John K Clark > > -- > 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. > -- 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.
