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Groups > sci.physics.relativity > #370749
| From | Thomas 'PointedEars' Lahn <PointedEars@web.de> |
|---|---|
| Newsgroups | sci.physics.relativity |
| Subject | Re: Why is the universe 13.8 milliards years old ? |
| Date | 2015-11-23 22:39 +0000 |
| Organization | PointedEars Software (PES) |
| Message-ID | <14634540.10F5PiinAv@PointedEars.de> (permalink) |
| References | (10 earlier) <n26ulf$6h4$1@news.albasani.net> <ab3af400-55b7-4894-8cc1-288a041d0ba8@googlegroups.com> <n279js$fbr$1@node2.news.atman.pl> <941310ad-97d2-4bb9-949c-be3d39274634@googlegroups.com> <n2vob0$b1a$2@speranza.aioe.org> |
Henry Wilson wrote:
> On Sat, 21 Nov 2015 16:46:22 -0800, John Gogo wrote:
>> […] Light is so rare in the universe that any measure of it is a
>> privilege.
>
> This is true, most of the universe contains very little light. In remote
> space, everything is black...or nearly.
Another common misconception. Actually, light is everywhere in the
universe, and photons range among the most frequent particles, but it is not
everywhere in wavelengths that human eyes can see. Where the human eye sees
only blackness, there are usually only infrared light, microwaves, or radio
waves.
Most well-known, the Cosmic Microwave Background (CMB) radiation (the
“afterglow” of the Big Bang) permeates the universe; its maxima are between
those of infrared light and radio waves. And it is in fact relativistic
redshift that makes very distant objects (“remote space”) detectable only
using devices of specialized branches of astronomy.
<https://en.wikipedia.org/wiki/Infrared#Astronomy>
<https://en.wikipedia.org/wiki/Radio_astronomy>
PointedEars
--
“Science is empirical: knowing the answer means nothing;
testing your knowledge means everything.”
—Dr. Lawrence M. Krauss, theoretical physicist,
in “A Universe from Nothing” (2009)
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Re: Why is the universe 13.8 milliards years old ? John Gogo <jfgogo22@yahoo.com> - 2015-11-21 16:46 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-11-23 19:10 +0000
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-11-23 22:39 +0000
Re: Why is the universe 13.8 milliards years old ? The Starmaker <starmaker@ix.netcom.com> - 2015-11-23 21:04 -0800
Re: Why is the universe 13.8 milliards years old ? pnalsing@gmail.com - 2015-11-23 21:49 -0800
Re: Why is the universe 13.8 milliards years old ? The Starmaker <starmaker@ix.netcom.com> - 2015-11-24 00:34 -0800
Re: Why is the universe 13.8 milliards years old ? The Starmaker <starmaker@ix.netcom.com> - 2015-11-24 01:27 -0800
Re: Why is the universe 13.8 milliards years old ? mlwozniak@wp.pl - 2015-11-24 01:36 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-11-24 10:26 +0000
Re: Why is the universe 13.8 milliards years old ? mlwozniak@wp.pl - 2015-11-24 02:52 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-11-24 11:48 +0000
Re: Why is the universe 13.8 milliards years old ? mlwozniak@wp.pl - 2015-11-24 04:02 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-11-24 12:36 +0000
Re: Why is the universe 13.8 milliards years old ? mlwozniak@wp.pl - 2015-11-24 05:16 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-11-24 18:38 +0000
Re: Why is the universe 13.8 milliards years old ? Maciej Woźniak <mlwozniak@wp.pl> - 2015-11-24 20:47 +0100
Re: Why is the universe 13.8 milliards years old ? alsor@interia.pl - 2015-11-24 15:27 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-11-24 23:48 +0000
Re: Why is the universe 13.8 milliards years old ? alsor@interia.pl - 2015-11-24 17:39 -0800
Re: Why is the universe 13.8 milliards years old ? John Gogo <jfgogo22@yahoo.com> - 2015-11-23 17:28 -0800
Re: Why is the universe 13.8 milliards years old ? John Gogo <jfgogo22@yahoo.com> - 2015-11-23 18:07 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-11-24 19:00 +0000
Re: Why is the universe 13.8 milliards years old ? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-11-27 12:22 -0600
Re: Why is the universe 13.8 milliards years old ? Maciej Woźniak <mlwozniak@wp.pl> - 2015-11-27 19:37 +0100
Re: Why is the universe 13.8 milliards years old ? HGW <xxx@....> - 2015-11-28 10:17 +1100
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-11-27 18:17 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-11-28 18:27 +0000
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-11-28 11:02 -0800
Re: Why is the universe 13.8 milliards years old ? HGW <xxx@....> - 2015-11-29 07:50 +1100
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-11-28 13:09 -0800
Re: Why is the universe 13.8 milliards years old ? Carl Heinz Krüger <heinzkrueger@ubernetz.org> - 2015-11-30 16:44 +0000
Re: Why is the universe 13.8 milliards years old ? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-11-28 17:49 -0600
Re: Why is the universe 13.8 milliards years old ? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-11-28 18:43 -0600
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-11-28 17:09 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-11-29 10:47 +0000
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-11-29 04:39 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-11-29 20:13 +0000
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-11-29 13:51 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-11-30 20:39 +0000
Re: Why is the universe 13.8 milliards years old ? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-11-30 12:02 -0600
Re: Why is the universe 13.8 milliards years old ? Carl Heinz Krüger <heinzkrueger@ubernetz.org> - 2015-11-30 18:14 +0000
Re: Why is the universe 13.8 milliards years old ? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-12-01 10:57 -0600
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-12-01 18:08 +0000
Re: Why is the universe 13.8 milliards years old ? Carl Heinz Krüger <heinzkrueger@ubernetz.org> - 2015-12-01 19:41 +0000
Re: Why is the universe 13.8 milliards years old ? alsor@interia.pl - 2015-12-01 14:14 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-12-02 16:09 +0000
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-11-30 20:52 +0000
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-11-30 15:07 -0800
Re: Why is the universe 13.8 milliards years old ? alsor@interia.pl - 2015-11-30 17:10 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-01 07:30 +0100
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-12-01 04:13 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-12-01 18:15 +0000
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-12-01 18:15 +0000
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-01 22:33 +0100
Re: Why is the universe 13.8 milliards years old ? Carl Heinz Krüger <heinzkrueger@ubernetz.org> - 2015-12-01 21:47 +0000
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-12-01 14:57 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-02 07:30 +0100
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-12-02 03:12 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-02 15:25 +0100
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-12-02 06:39 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-02 15:57 +0100
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-12-02 08:25 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-02 17:50 +0100
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-12-02 12:06 -0800
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-02 22:28 +0100
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-12-02 14:25 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-12-03 16:20 +0000
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-12-03 08:23 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-12-02 16:29 +0000
Re: Why is the universe 13.8 milliards years old ? Gary Harnagel <hitlong@yahoo.com> - 2015-12-02 12:10 -0800
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-12-02 16:26 +0000
Re: Why is the universe 13.8 milliards years old ? Henry Wilson <HGW@home.com> - 2015-12-02 16:21 +0000
Re: Why is the universe 13.8 milliards years old ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-11-24 10:25 +0000
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