On 2 December 2013 20:14, meekerdb <meeke...@verizon.net> wrote: > On 12/1/2013 7:35 PM, LizR wrote: > > On 2 December 2013 16:16, Richard Ruquist <yann...@gmail.com> wrote: > >> MOND is an alternative explanation that replaces Dark Matter by modifying >> gravity. >> > > Yes (hence the flippant remark about bolt on extras) > > >> Dark Matter results when gravity is not modified. (pure Newtonian) >> > > Or rather Einsteinian, I don't think Newtonian gravity predicts > gravitational lensing? > > > Sure it does, but only half as strong as GR. > > Ah yes, that's right. I believe that's why the 1919 eclipse data is actually somewhat equivocal, despite catapulting Einstein to fame. (And someone predicted black holes way before Einstein, too, on the basis of Newtonian gravity and the measurement of c - although without realising the full implications ... Mitchell???).
Mind you, I think my correction above is still pertinent - that is, it's still truer to say that "dark matter is what results when gravity is not modified (pure *Einsteinian*)". -- 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 everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
