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Groups > sci.physics.relativity > #452374
| Subject | Re: Is time everywhere in the universe the same? |
|---|---|
| Newsgroups | sci.physics.relativity, sci.physics |
| References | (1 earlier) <p712a9$196t$4@gioia.aioe.org> <m0emC.99835$MO3.18011@fx24.am4> <U_idnbOz9N9DNQfHnZ2dnUU7_83NnZ2d@giganews.com> <pBEmC.65860$kP6.3661@fx06.am4> <2cKdnYGO1t-ADTzHnZ2dnUU7_83NnZ2d@giganews.com> |
| From | Keith Stein <keithstein111@gmail.com> |
| Message-ID | <cphpC.119448$By.1822@fx01.am4> (permalink) |
| Organization | virginmedia.com |
| Date | 2018-03-11 21:42 +0000 |
Cross-posted to 2 groups.
On 08/03/2018 19:33, Tom Roberts wrote: > On 3/3/18 3:38 PM, Keith Stein wrote: >> On 03/03/2018 13:53, Tom Roberts wrote: >>> On 3/2/18 9:24 AM, Keith Stein wrote: >>>> It is true that frequencies look to be lower with galaxies further >>>> from Earth. This is conventionally considered to be a sort of >>>> Doppler Shift due to the expansion of the universe, but it is much >>>> better viewed as >>>> a result of light slowing down as it travels through the >>>> intergalactic medium. >>> >>> Physics is a QUANTITATIVE science. It is easy to CALCULATE the effect >>> of the intergalactic medium, and it is woefully inadequate to account >>> for the observed cosmological redshift. >> >> I would very much like to see that CALCULATION, Mr.Roberts. I don't >> suppose you could provide a reference, could you? > > It is VERY simple, described in any textbook on electrodynamics (or > optics). > > If one measures using frequency, for light entering or leaving an > optical medium, or variations in the medium's density, there is no > change in frequency -- no redshift or blueshift. > > If one measures using wavelength, light entering a denser medium > experiences a BLUESHIFT. Note this occurs on entering or leaving the > medium; it is INDEPENDENT of distance traveled within the medium. The > air on earth is vastly more dense than the intergalactic medium, and > completely dominates. So your GUESS is plain and simply wrong -- the > intergalactic medium cannot possibly account for the observed redshift > of distant galaxies. > > The effect of air is about 290 parts per million; that > due to the intergalactic medium is more than a billion > times smaller. > > Note the Hubble telescope also sees the THE SAME redshift of distant > galaxies as do telescopes on the ground, and is outside the air. > > By convention all astronomical observations of spectra on > earth are corrected for the effects of the air and earth's > orbit. When light slows down by entering a more dense medium such as glass, or water, the frequency stays the same and the WAVELENGTH REDUCES. So how is it that when light slows down traveling across intergalactic space,the the WAVELENGTH INCREASES ? good question! when light slows down entering a more dense medium, the front of the wave train hits the more dense medium first. The front therefore slows before the rear of the wave train, resulting in the rear of the wave catching up to some extent with the front. Thus the wave train compresses and the WAVELENGTH REDUCES. When light slows down in intergalactic space, on the other hand, there is no difference in the conditions at the front or back of the wave train. At any one time the front and back are indeed traveling at the same speed, and therefore the length of the wave train stays constant as it travels through intergalactic space. So "How is it that the wavelength of light from distant galaxies is INCREASED ? " you might ask, and i would reply that it is NOT that light is stretched as it travels through intergalactic space, but rather that it was emitted with an increased wavelength, when the velocity of light was higher than it is now. The frequency generated by any given atomic transition, even on distant galaxies many billions of years ago, is exactly the same as that on Earth today. The wavelength is proportional the the velocity of light AT THE TIME IT WAS EMITTED, and This increased wavelength is faithfully transmitted through space, where it is measured in our observatories. keith stein
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Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-02-25 14:53 -0800
Re: Is time everywhere in the universe the same? mitchrae3323@gmail.com - 2018-02-25 15:09 -0800
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-02-26 07:15 +0000
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-03-19 14:09 +0000
Re: Is time everywhere in the universe the same? Eveline Hurst <rutu@rwsrnlv.ee> - 2018-02-26 13:32 +0000
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-03-02 15:24 +0000
Re: Is time everywhere in the universe the same? Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-03 07:53 -0600
Re: Is time everywhere in the universe the same? Ický Bezdrátovì <ikbe@wmkfre.np> - 2018-03-03 14:05 +0000
Re: Is time everywhere in the universe the same? Ický Bezdrátovì <ikbe@wmkfre.np> - 2018-03-03 14:07 +0000
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-03-03 21:38 +0000
Re: Is time everywhere in the universe the same? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-04 13:03 +0100
Re: Is time everywhere in the universe the same? Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-08 13:33 -0600
Re: Is time everywhere in the universe the same? mitchrae3323@gmail.com - 2018-03-08 11:53 -0800
Re: Is time everywhere in the universe the same? mlwozniak@wp.pl - 2018-03-08 12:08 -0800
Re: Is time everywhere in the universe the same? Koobee Wublee <koobee.wublee@gmail.com> - 2018-03-08 13:46 -0800
Re: Is time everywhere in the universe the same? mitchrae3323@gmail.com - 2018-03-08 14:16 -0800
Re: Is time everywhere in the universe the same? "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-03-08 15:37 -0800
Re: Is time everywhere in the universe the same? Koobee Wublee <koobee.wublee@gmail.com> - 2018-03-08 22:53 -0800
Re: Is time everywhere in the universe the same? "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-03-09 06:37 -0800
Re: Is time everywhere in the universe the same? "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-03-09 07:03 -0800
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-03-11 21:35 +0000
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-03-11 21:42 +0000
Re: Is time everywhere in the universe the same? Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-11 18:54 -0500
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-03-12 01:11 +0000
Re: Is time everywhere in the universe the same? Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-13 22:44 -0500
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-03-14 14:57 +0000
Re: Is time everywhere in the universe the same? Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-18 13:30 -0500
Re: Is time everywhere in the universe the same? Simon Roberts <retenshun@gmail.com> - 2018-03-18 12:00 -0700
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-03-19 11:12 +0000
Re: Is time everywhere in the universe the same? Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-23 18:50 -0500
Re: Is time everywhere in the universe the same? "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-03-23 17:16 -0700
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-03-24 06:22 +0000
Re: Is time everywhere in the universe the same? Gary Harnagel <hitlong@yahoo.com> - 2018-03-24 06:22 -0700
Re: Is time everywhere in the universe the same? Volney <volney@volney.invalid> - 2018-03-24 11:55 -0400
Re: Is time everywhere in the universe the same? Gary Harnagel <hitlong@yahoo.com> - 2018-03-24 11:02 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-24 09:08 -0700
Re: Is time everywhere in the universe the same? RichD <r_delaney2001@yahoo.com> - 2018-03-12 11:12 -0700
Re: Is time everywhere in the universe the same? Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-12 14:22 -0500
Re: Is time everywhere in the universe the same? Koobee Wublee <koobee.wublee@gmail.com> - 2018-03-12 12:59 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-12 07:30 -0700
Re: Is time everywhere in the universe the same? Térov Balónky <iytn@yeicenlw.ik> - 2018-03-12 14:34 +0000
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-14 07:07 -0700
Re: Is time everywhere in the universe the same? Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-12 16:01 -0500
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-12 21:14 +0000
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-14 08:50 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-14 18:01 +0000
Re: Is time everywhere in the universe the same? mlwozniak@wp.pl - 2018-03-14 11:30 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-14 18:37 +0000
Re: Is time everywhere in the universe the same? mlwozniak@wp.pl - 2018-03-14 12:42 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-14 20:44 +0000
Re: Is time everywhere in the universe the same? mlwozniak@wp.pl - 2018-03-14 14:11 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-14 21:27 +0000
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-14 21:31 +0000
Re: Is time everywhere in the universe the same? mlwozniak@wp.pl - 2018-03-14 22:17 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-15 11:53 +0000
Re: Is time everywhere in the universe the same? mlwozniak@wp.pl - 2018-03-15 06:06 -0700
Re: Is time everywhere in the universe the same? mlwozniak@wp.pl - 2018-03-14 22:17 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-15 11:53 +0000
Re: Is time everywhere in the universe the same? mlwozniak@wp.pl - 2018-03-15 06:08 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-15 14:57 +0000
Re: Is time everywhere in the universe the same? mlwozniak@wp.pl - 2018-03-15 12:07 -0700
Re: Is time everywhere in the universe the same? Gary Harnagel <hitlong@yahoo.com> - 2018-03-14 14:28 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-15 07:09 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-15 14:57 +0000
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-16 07:06 -0700
Re: Is time everywhere in the universe the same? Melzzzzz <Melzzzzz@zzzzz.com> - 2018-03-16 14:10 +0000
Re: Is time everywhere in the universe the same? Térov Balónky <iytn@yeicenlw.ik> - 2018-03-16 14:39 +0000
Re: Is time everywhere in the universe the same? moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-03-16 18:19 +0000
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-16 16:36 +0000
Re: Is time everywhere in the universe the same? mlwozniak@wp.pl - 2018-03-16 09:59 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-16 21:34 -0700
Re: Is time everywhere in the universe the same? Gary Harnagel <hitlong@yahoo.com> - 2018-03-17 06:50 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-17 08:47 -0700
Re: Is time everywhere in the universe the same? moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-03-17 16:18 +0000
Re: Is time everywhere in the universe the same? Python <python@python.invalid> - 2018-03-17 19:22 +0100
Re: Is time everywhere in the universe the same? Gary Harnagel <hitlong@yahoo.com> - 2018-03-17 11:23 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-17 12:05 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-17 19:11 +0000
Re: Is time everywhere in the universe the same? Gary Harnagel <hitlong@yahoo.com> - 2018-03-17 12:35 -0700
Re: Is time everywhere in the universe the same? pnalsing@gmail.com - 2018-03-17 16:37 -0700
Re: Is time everywhere in the universe the same? Gary Harnagel <hitlong@yahoo.com> - 2018-03-17 18:32 -0700
Re: Is time everywhere in the universe the same? Térov Balónky <iytn@yeicenlw.ik> - 2018-03-18 12:44 +0000
Re: Is time everywhere in the universe the same? Térov Balónky <iytn@yeicenlw.ik> - 2018-03-17 17:11 +0000
Re: Is time everywhere in the universe the same? moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-03-15 17:13 +0000
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-13 06:14 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-13 14:06 +0000
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-14 08:53 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-14 18:01 +0000
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-15 07:13 -0700
Re: Is time everywhere in the universe the same? Odd Bodkin <bodkinodd@gmail.com> - 2018-03-15 15:06 +0000
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-15 15:03 -0700
Re: Is time everywhere in the universe the same? Gary Harnagel <hitlong@yahoo.com> - 2018-03-15 15:25 -0700
Re: Is time everywhere in the universe the same? "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-03-15 17:10 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-16 07:09 -0700
Re: Is time everywhere in the universe the same? Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-13 17:19 -0500
Re: Is time everywhere in the universe the same? Térov Balónky <iytn@yeicenlw.ik> - 2018-03-13 22:51 +0000
Re: Is time everywhere in the universe the same? mitchrae3323@gmail.com - 2018-03-13 15:58 -0700
Re: Is time everywhere in the universe the same? mitchrae3323@gmail.com - 2018-03-13 16:00 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-14 09:00 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-04 06:10 -0800
Re: Is time everywhere in the universe the same? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-03 15:08 +0100
Re: Is time everywhere in the universe the same? Ický Bezdrátovì <ikbe@wmkfre.np> - 2018-03-03 14:11 +0000
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-04 06:22 -0800
Re: Is time everywhere in the universe the same? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-05 12:43 +0100
Re: Is time everywhere in the universe the same? "Dono," <sa_ge@comcast.net> - 2018-03-03 07:50 -0800
Re: Is time everywhere in the universe the same? numbernumber1964@gmail.com - 2018-03-12 13:22 -0700
Re: Is time everywhere in the universe the same? numbernumber1964@gmail.com - 2018-03-12 13:26 -0700
Re: Is time everywhere in the universe the same? numbernumber1964@gmail.com - 2018-03-12 13:27 -0700
Re: Is time everywhere in the universe the same? "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-03-12 13:31 -0700
Re: Is time everywhere in the universe the same? mitchrae3323@gmail.com - 2018-03-15 16:01 -0700
Re: Is time everywhere in the universe the same? Thomas Heger <ttt_heg@web.de> - 2018-03-17 15:16 +0100
Re: Is time everywhere in the universe the same? Térov Balónky <iytn@yeicenlw.ik> - 2018-03-17 17:24 +0000
Re: Is time everywhere in the universe the same? mitchrae3323@gmail.com - 2018-03-17 10:42 -0700
Re: Is time everywhere in the universe the same? Thomas Heger <ttt_heg@web.de> - 2018-03-17 21:20 +0100
Re: Is time everywhere in the universe the same? John Gogo <jfgogo22@yahoo.com> - 2018-03-17 18:43 -0700
Re: Is time everywhere in the universe the same? Python <python@python.invalid> - 2018-03-18 02:46 +0100
Re: Is time everywhere in the universe the same? John Gogo <jfgogo22@yahoo.com> - 2018-03-17 19:16 -0700
Re: Is time everywhere in the universe the same? Simon Roberts <retenshun@gmail.com> - 2018-03-18 06:39 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-18 07:30 -0700
Re: Is time everywhere in the universe the same? Simon Roberts <retenshun@gmail.com> - 2018-03-18 08:15 -0700
Re: Is time everywhere in the universe the same? Simon Roberts <retenshun@gmail.com> - 2018-03-18 08:20 -0700
Re: Is time everywhere in the universe the same? "Paul B. Andersen" <relativity@paulba.no> - 2018-03-18 21:16 +0100
Re: Is time everywhere in the universe the same? Simon Roberts <retenshun@gmail.com> - 2018-03-18 08:51 -0700
Re: Is time everywhere in the universe the same? Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-18 13:34 -0500
Re: Is time everywhere in the universe the same? Simon Roberts <retenshun@gmail.com> - 2018-03-18 11:58 -0700
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-19 07:20 -0700
Re: Is time everywhere in the universe the same? Keith Stein <keithstein111@gmail.com> - 2018-03-19 14:44 +0000
Re: Is time everywhere in the universe the same? kenseto <setoken@att.net> - 2018-03-19 08:50 -0700
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