Re: Einstein's gravitational constant

From	Frances Espinosa <franesp@portio.org>
Newsgroups	sci.physics.relativity, sci.physics
Subject	Re: Einstein's gravitational constant
Date	2015-09-15 20:50 +0000
Organization	Ckean Air Approximation
Message-ID	<mta0bb$kgf$1@speranza.aioe.org> (permalink)
References	<d5loi8Fr2tfU1@mid.individual.net> <Ididnad7YL4VcWjInZ2dnUU7_8ydnZ2d@giganews.com> <fcdd51d7-015a-4990-a58d-93e4f7e28ee9@googlegroups.com> <iJqdnRFLTYyQ1WXInZ2dnUU7_82dnZ2d@giganews.com>

Cross-posted to 2 groups.

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Tom Roberts wrote:

>> However, this constant is very much sensitive to what the energy
>> momentum tensor is. With that said, the energy momentum tensor is
>> practically zero in every experiment not involving cosmology.  So, we
>> have no way to verify if any claimed constant is correct or not.
> 
> NONSENSE!
> 
> All one does is COMPUTE the fall of a stone near earth using the
> appropriate approximation to GR, and then compare to actual stones. Or
> one COMPUTES the orbit of moon, or earth, or planets and comets, and
> compares to their actual orbits. They agree to within the precision of
> the measurements (including quite subtle effects, such as perihelion
> shifts).

You merely display your now legendary ignorance. Nobody ever use GR to 
approximate falling of stones near Earth. But predominately Newton 
differential equations are used.

If you pretend otherwise, do it right now. Use GR to approximate the fall 
of a stone. Talk is cheap. Let me see your tensors in GR.

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Re: Einstein's gravitational constant Frances Espinosa <franesp@portio.org> - 2015-09-15 20:50 +0000
  Re: Einstein's gravitational constant "Paul B. Andersen" <relativity@paulba.no> - 2015-09-16 14:11 +0200
    Re: Einstein's gravitational constant kefischer <emoneyjoe@iglou.com> - 2015-09-16 08:35 -0400
      Re: Einstein's gravitational constant Frances Espinosa <franesp@portio.org> - 2015-09-16 17:08 +0000
        Re: Einstein's gravitational constant kefischer <emoneyjoe@iglou.com> - 2015-09-16 15:08 -0400
          Re: Einstein's gravitational constant Jimmie Wynne <jimmwyn@metermap.org> - 2015-09-16 19:41 +0000
            Re: Einstein's gravitational constant kefischer <emoneyjoe@iglou.com> - 2015-09-16 16:22 -0400
    Re: Einstein's gravitational constant Frances Espinosa <franesp@portio.org> - 2015-09-16 17:01 +0000
      Re: Einstein's gravitational constant "Paul B. Andersen" <relativity@paulba.no> - 2015-09-17 15:27 +0200
        Re: Einstein's gravitational constant Jimmie Wynne <jimmwyn@metermap.org> - 2015-09-17 20:29 +0000

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