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Science > Physics |
| User: |
"Nick" |
| Date: |
13 Aug 2005 12:25:28 AM |
| Object: |
Space-Stretch |
The universe is not expanding at an edge at light speed.
The space inbetween the galaxies is stretching.
Anybody know of the geometry of the space-stretch?
Ta.Ta.
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| User: "F. Kuik" |
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| Title: Re: Space-Stretch |
13 Aug 2005 08:46:26 AM |
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No ... no one does. You don't ... we don't ...
maybe later... ;)
"Nick" <macromitch@yahoo.com> schreef in bericht
news:1123910728.233568.13940@f14g2000cwb.googlegroups.com...
The universe is not expanding at an edge at light speed.
The space inbetween the galaxies is stretching.
Anybody know of the geometry of the space-stretch?
Ta.Ta.
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| User: "Nick" |
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| Title: Re: Space-Stretch |
13 Aug 2005 02:45:09 PM |
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I am sure the cosmological space-stretch is
present in math. Maybe topology.
Anybody have a clue?
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| User: "Bjoern Feuerbacher" |
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| Title: Re: Space-Stretch |
14 Aug 2005 07:04:53 AM |
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Nick wrote:
I am sure the cosmological space-stretch is
present in math. Maybe topology.
Anybody have a clue?
<http://www.phys.washington.edu/users/dbkaplan/555/lecture_03.pdf>
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| User: "Spoonfed" |
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| Title: Re: Space-Stretch |
15 Aug 2005 10:15:36 AM |
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Bjoern Feuerbacher wrote:
Nick wrote:
I am sure the cosmological space-stretch is
present in math. Maybe topology.
Anybody have a clue?
<http://www.phys.washington.edu/users/dbkaplan/555/lecture_03.pdf>
Hmmm. I wonder why they have to give such a general case? I would say
that in equation 52
a(t)=1 and k=0.
This would make equation 52 equivalent to equation 51.
Perhaps this makes me seem silly or presumptuous, but what evidence do
they have to think otherwise? I can see the advantage of being
general, but it's sort of like giving an equation for all possible
geometries of a planet when asked for a map of the Earth.
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| User: "Spoonfed" |
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| Title: Re: Space-Stretch |
15 Aug 2005 03:26:06 PM |
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Spoonfed wrote:
Bjoern Feuerbacher wrote:
Nick wrote:
I am sure the cosmological space-stretch is
present in math. Maybe topology.
Anybody have a clue?
<http://www.phys.washington.edu/users/dbkaplan/555/lecture_03.pdf>
Yes, Nick, it is present in the math. If I am not mistaken, the
"space-stretch" is in the function a(t) in the pdf document Bjoern
Feurbacher has posted a link to. Thank you, Bjoern.
This value, a(t), is the "scale factor" of, apparently, the entire
universe, which changes with time and supposedly causes a redshift by
causing the distant stationary galaxies to increase their distances
from us, without truly moving.
This idea represents a widely held concept of the universe. For
whatever reason, people do not wish to accept the idea that the
universe is simply a big explosion, flying off in all directions.
Instead, they prefer to have a stately, steady-state, static vision of
it, where all stars hang motionless in the sky, and only the changing,
wavering geometry of space causes the galaxies to appear to be
receding.
Edwin Hubble et. al. discovered that the galaxies appeared to be
receding, and the more distant the galaxy, the greater the velocity.
Einstein and many others could not stand the idea of all of the distant
galaxies fleeing away from us, eventually leaving us all by ourselves
in an empty universe. They wanted the universe to be unchanging and
eternal.
Luckily, the mathematics already existed to leave open the possibility
of a steady-state universe, where the distant galaxies were not
receding--only... the space... between them... was changing scale. How
lovely. How elegant. The steady-state universe was saved.
Best of all, by having this arbitrary scale factor a(t), we can claim
that nothing in the universe ever REALLY moves, so we never ever EVER
have to go back and try to understand that confusing "special" theory
of relativity.
See?
"the wavelength of light just contracts and stretches with the scale
factor, and that fact explains the whole redshift phenomenon. In this
view it is not much like the Doppler shift described in section 1.2 in
the context of special relativity"
So, Nick, I think the answer to your question "What is the Space
Stretch" is "A way to avoid thinking too much about Special Relativity"
or "An alternate explanation to why galaxies obey Hubble's Law that
doesn't admit that they might actually be receding."
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| User: "Nick" |
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| Title: Re: Space-Stretch |
14 Aug 2005 11:51:10 PM |
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Friedman robertson walker metric BJ?
Nothing you can say about this?
Einstein was a Creationist:
"I want to know how God created this world.
I want to know his thoughts. The rest are
just details."
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| User: "T Wake" |
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| Title: Re: Space-Stretch |
15 Aug 2005 02:57:38 AM |
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"Nick" <macromitch@yahoo.com> wrote in message
news:1124081470.629260.316260@f14g2000cwb.googlegroups.com...
Einstein was a Creationist:
"I want to know how God created this world.
I want to know his thoughts. The rest are
just details."
Boring, repetitive, repeatedly disproven nonsense.
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| User: "" |
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| Title: Re: Space-Stretch |
15 Aug 2005 03:01:23 AM |
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Oh really?
Besides this splendid quote above as Einstein
approached the end of his life he said the
older he got the more he believed in a
Creator of the universe.
Please disprove my quote!!!
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| User: "T Wake" |
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| Title: Re: Space-Stretch |
15 Aug 2005 03:05:21 AM |
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<macromitch@internetCDS.com> wrote in message
news:1124092883.404522.44510@g43g2000cwa.googlegroups.com...
Oh really?
Besides this splendid quote above as Einstein
approached the end of his life he said the
older he got the more he believed in a
Creator of the universe.
Please disprove my quote!!!
It has been more times than I care to count. Please try to read the replies
you get in other threads.
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| User: "" |
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| Title: Re: Space-Stretch |
15 Aug 2005 03:20:28 AM |
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well if they've disproved it what about you?
Step up to the plate.
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| User: "T Wake" |
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| Title: Re: Space-Stretch |
15 Aug 2005 03:50:57 AM |
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<macromitch@internetCDS.com> wrote in message
news:1124094028.736763.50080@g14g2000cwa.googlegroups.com...
well if they've disproved it what about you?
What about me?
Step up to the plate.
It's ok thanks. I have had my breakfast today.
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| User: "Nick" |
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| Title: Re: Space-Stretch |
15 Aug 2005 03:53:09 AM |
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I know you can't step up
Lets have it on flake
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| User: "T Wake" |
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| Title: Re: Space-Stretch |
15 Aug 2005 06:07:44 AM |
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"Nick" <macromitch@yahoo.com> wrote in message
news:1124095989.223670.304000@f14g2000cwb.googlegroups.com...
I know you can't step up
I can step up. My house has a door step so I step up to come in every day.
Lets have it on flake
What are you talking about now? Is your code damaged or something? You will
still never pass the Turing test with random sentences like this.
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