Article View: sci.astro
Article #3418Re: Modelling the expanding universe?
From: Tom Van Flandern
Date: Fri, 22 Jan 1993 07:29
Date: Fri, 22 Jan 1993 07:29
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I am posting the following E-mail by request of its sender:
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From buell@phyast.nhn.uoknor.edu Thu Jan 21 07:51:07 1993
Date: Thu, 21 Jan 93 09:51:41 CST
From: buell@phyast.nhn.uoknor.edu (Jim Buell)
Organization: Dept. Physics & Astronomy, The University of Oklahoma
To: metares@well.sf.ca.us
Subject: Re: Modelling the expanding universe?
Newsgroups: sci.astro
References: <C12MDE.675@csulb.edu> <C13sH3.1xL@well.sf.ca.us>
In sci.astro you write:
>dpalmer@csulb.edu (David Palmer) writes:
>> is a solar system (or other volume of space less than a few cubic light
>> years) too small to show a measureable effect? If so, this would seem
>> to fit the observation that the more distant the object, the greater the
>> apparent recession from the observer.
> [TVF] If that same rate, 50-100 km/s/Mpc, is prorated down to solar
> system dimensions, no such expansion is seen in planetary orbits. The
> question we are discussing is, why not? -|Tom|-
We can't see it because you can't go about solving GR for the solar
system in the same way you do for the Universe. In the universe you
have to postulate that no matter where you are the Universe will look
the same. If you go to another galaxy most of the other galaxies will
appear to be receding from you. However in the solar system you can't
make the same assumption since there is a prefered coordinate system
with the Sun at the center.
>--
> Tom Van Flandern / Washington, DC / metares@well.sf.ca.us
> Meta Research was founded to foster research into ideas not otherwise
> supported because they conflict with mainstream theories in Astronomy.
Jim Buell
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Here is my reply:
Jim, what you say is true, but seems irrelevant. If we take the
center of the local supercluster, we have a preferred frame in which Hubble
expansion does occur. So what's the connection between choice of frame and
whether or not expansion occurs? -|Tom|-
--
Tom Van Flandern / Washington, DC / metares@well.sf.ca.us
Meta Research was founded to foster research into ideas not otherwise
supported because they conflict with mainstream theories in Astronomy.
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Newsgroups: sci.astro Path: arc1-ca.pugleaf.net!sparky!uunet!well!metares From: metares@well.sf.ca.us (Tom Van Flandern) Subject: Re: Modelling the expanding universe? Message-ID: <C18vH2.6vJ@well.sf.ca.us> Sender: news@well.sf.ca.us Organization: Whole Earth 'Lectronic Link Date: Fri, 22 Jan 1993 07:29:26 GMT Lines: 52