For the discussion of all things philosophical.
https://canzookia.com/
Dark energy/matter wasn't proposed to explain red shift.Therefore there is no need to postulate dark energy.
Dark energy was proposed to explain the universe's expansion, which scientists believe causes the redshift.Flannel Jesus wrote: ↑Wed Oct 30, 2024 2:57 pmDark energy/matter wasn't proposed to explain red shift.Therefore there is no need to postulate dark energy.
not just the expansion, specifically *accelerating expansion*. Redshift is there even if expansion isn't accelerating. Redshift really is only very loosely indirectly relaed to dark energy. Redshift is explained by expansion. Dark energy supposedly explains accelerated expansion. But dark energy doesn't explain redshift.bahman wrote: ↑Wed Oct 30, 2024 2:59 pmDark energy was proposed to explain the universe's expansion, which scientists believe causes the redshift.Flannel Jesus wrote: ↑Wed Oct 30, 2024 2:57 pmDark energy/matter wasn't proposed to explain red shift.Therefore there is no need to postulate dark energy.
But the Universe, Itself, is not expanding. So, there is nothing to explain here.bahman wrote: ↑Wed Oct 30, 2024 2:59 pmDark energy was proposed to explain the universe's expansion, which scientists believe causes the redshift.Flannel Jesus wrote: ↑Wed Oct 30, 2024 2:57 pmDark energy/matter wasn't proposed to explain red shift.Therefore there is no need to postulate dark energy.
If dark energy explains the universe's expansion, then it explains the redshift. I propose that if the physical parameters are subject to change over time, then the redshift could be explained.Flannel Jesus wrote: ↑Wed Oct 30, 2024 3:07 pmnot just the expansion, specifically *accelerating expansion*. Redshift is there even if expansion isn't accelerating. Redshift really is only very loosely indirectly relaed to dark energy. Redshift is explained by expansion. Dark energy supposedly explains accelerated expansion. But dark energy doesn't explain redshift.bahman wrote: ↑Wed Oct 30, 2024 2:59 pmDark energy was proposed to explain the universe's expansion, which scientists believe causes the redshift.Flannel Jesus wrote: ↑Wed Oct 30, 2024 2:57 pm
Dark energy/matter wasn't proposed to explain red shift.
How do you explain the redshift then?Age wrote: ↑Wed Oct 30, 2024 4:06 pmBut the Universe, Itself, is not expanding. So, there is nothing to explain here.bahman wrote: ↑Wed Oct 30, 2024 2:59 pmDark energy was proposed to explain the universe's expansion, which scientists believe causes the redshift.Flannel Jesus wrote: ↑Wed Oct 30, 2024 2:57 pm
Dark energy/matter wasn't proposed to explain red shift.
Dark Energy doesn't explain expansion, it explains *accelerating* expansion. I don't think you really care about this topic enough to take it seriously though.bahman wrote: ↑Wed Oct 30, 2024 4:07 pmIf dark energy explains the universe's expansion, then it explains the redshift.Flannel Jesus wrote: ↑Wed Oct 30, 2024 3:07 pmnot just the expansion, specifically *accelerating expansion*. Redshift is there even if expansion isn't accelerating. Redshift really is only very loosely indirectly relaed to dark energy. Redshift is explained by expansion. Dark energy supposedly explains accelerated expansion. But dark energy doesn't explain redshift.
Ok, accelerating expansion. That I am aware of.Flannel Jesus wrote: ↑Wed Oct 30, 2024 4:44 pmDark Energy doesn't explain expansion, it explains *accelerating* expansion. I don't think you really care about this topic enough to take it seriously though.bahman wrote: ↑Wed Oct 30, 2024 4:07 pmIf dark energy explains the universe's expansion, then it explains the redshift.Flannel Jesus wrote: ↑Wed Oct 30, 2024 3:07 pm
not just the expansion, specifically *accelerating expansion*. Redshift is there even if expansion isn't accelerating. Redshift really is only very loosely indirectly relaed to dark energy. Redshift is explained by expansion. Dark energy supposedly explains accelerated expansion. But dark energy doesn't explain redshift.
Ok, can someone please explain to me how one can use some measurement to distinguish between less and more expanded physical (real) space?bahman wrote: ↑Thu Oct 31, 2024 11:12 amOk, accelerating expansion. That I am aware of.Flannel Jesus wrote: ↑Wed Oct 30, 2024 4:44 pmDark Energy doesn't explain expansion, it explains *accelerating* expansion. I don't think you really care about this topic enough to take it seriously though.
There's some interesting explanations here:Cerveny wrote: ↑Fri Nov 01, 2024 5:05 pmOk, can someone please explain to me how one can use some measurement to distinguish between less and more expanded physical (real) space?bahman wrote: ↑Thu Oct 31, 2024 11:12 amOk, accelerating expansion. That I am aware of.Flannel Jesus wrote: ↑Wed Oct 30, 2024 4:44 pm
Dark Energy doesn't explain expansion, it explains *accelerating* expansion. I don't think you really care about this topic enough to take it seriously though.
There should be a simple answer. If the quality of physical space (reality) changes, some of its measurable properties (c, e, elementary spin...) should also change.Flannel Jesus wrote: ↑Fri Nov 01, 2024 5:32 pmThere's some interesting explanations here:
https://www.reddit.com/r/AskPhysics/com ... ed_by_the/