On Saturday, July 19, 2025 at 5:17:32 AM UTC-6 John Clark wrote:
On Fri, Jul 18, 2025 at 8:18 PM Alan Grayson <[email protected]> wrote: > *the red shift increases, implying increasing recessional velocity.* *The above statement is the source of your confusion. You cannot conclude that if there is a redshift then there must be a recessional velocity because the movement of something through space is just one way to produce a redshift, there are two other ways that it can happen:* You previously agreed that although there could be more than one cause of red shift, with one exception it always indicates recessional velocity from the pov of the observer measuring that red shift. The exception is gravitational red shift. AG *1) The space between the Earth and very distant objects could be expanding. * *2) The light may have to fight its way out of a strong gravitational field. But we know that can't be a major factor in forming the redshift we see from very distant galaxies because, from gravitational lensing, we can determine that the gravitational field around those galaxies is not nearly strong enough to produce such a massive redshift. * *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* {(% -- 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 view this discussion visit https://groups.google.com/d/msgid/everything-list/2d0848ce-b96e-4616-8402-bf3fe6c5b2edn%40googlegroups.com.
