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- Newsgroups: sci.astro
- Path: 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
-
-
- I am posting the following E-mail by request of its sender:
-
- ---------------------------------------------------------------------------
- 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
- ---------------------------------------------------------------------------
-
- 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.
-