Groups > sci.physics.relativity > #473184

Re: fantastic question about light bending in the GR

Newsgroups	sci.physics.relativity
Date	2018-09-26 11:45 -0700
References	(15 earlier) <7b702473-609b-44b7-bca8-855ec4fbe356@googlegroups.com> <cf2896e2-33c3-4535-8df0-b5bbc01d709e@googlegroups.com> <5079d022-7b9f-4af8-8304-d975aa9a17a2@googlegroups.com> <7b6a445a-2497-4c0b-976a-96b7ba9af0cd@googlegroups.com> <76671654-14e2-445e-b53e-4463dde0377d@googlegroups.com>
Message-ID	<08fbd92c-43f3-4a7d-bfa4-7b40407d8b63@googlegroups.com> (permalink)
Subject	Re: fantastic question about light bending in the GR
From	JanPB <filmart@gmail.com>

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On Saturday, September 22, 2018 at 9:13:41 AM UTC-7, al...@interia.pl wrote:
> W dniu sobota, 22 września 2018 04:43:39 UTC+2 użytkownik JanPB napisał:
> > On Thursday, September 20, 2018 at 3:48:17 PM UTC-7, al...@interia.pl wrote:
> > > W dniu czwartek, 20 września 2018 21:15:22 UTC+2 użytkownik JanPB napisał:
> > > > On Thursday, September 20, 2018 at 9:29:59 AM UTC-7, al...@interia.pl wrote:
> > > > > W dniu środa, 19 września 2018 21:22:08 UTC+2 użytkownik JanPB napisał:
> > > > > 
> > > > > > You cannot change facts. Which happen to be: I know this stuff and you don't.
> > > > > 
> > > > > But you know nothing, unfortunately!
> > > > 
> > > > Sorry, this is going to stop here. There is nothing I can tell you that would
> > > > fix your problem.
> > > 
> > > Indeed. You reputation lost in the fog of your pointless replies = claims and delusions.
> > 
> > Dream on. Silly goose.
> > 
> > --
> > Jan
> 
> Simple test for your competence in the math:
> 
> r' = dr/dt = (1-a/r) sqrt(1 - h^2/r^2 * 1/(1-a/r))
> f' = df/dt = h/r^2
> 
> where:
> a = 3km,
> h = R*sqrt(1-a/r); R = 0.7e6 km, sun's radius.
> 
> Derive the light path using these equations:
> r(t) = x(t), y(t);
> 
> What is the deflection angle, and a time delay - the so-called Shapiro delay?

Are you sure you want to see it? Even in TeX it doesn't look very nice
as the relevant quantities are elliptic integrals. And if you don't plan
on integrating them numerically, you expand them in a power series (order 1
is enough, actually) but the first-order integral has a pair of
singularities which (necessarily must) cancel, so a (simple but involved)
limiting argument must be used.

Somehow I have a feeling you know nothing about this and assume the
calculation is just a couple of lines of simple differentials. That's
one source of my skepticism regarding correctness of your claims. (There
are more.)

--
Jan

Thread

fantastic question about light bending in the GR alsor@interia.pl - 2018-09-08 10:59 -0700
  Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-08 20:30 +0200
    Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-08 12:04 -0700
  Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-12 13:23 -0700
  Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-12 13:38 -0700
  Re: fantastic question about light bending in the GR consequently7990662@gmail.com - 2018-09-12 13:59 -0700
    Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-12 21:34 -0700
    Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-13 08:14 +0200
      Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-13 08:21 +0200
        Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-13 10:49 +0200
          Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-16 09:10 +0200
            Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-16 11:36 +0200
              Re: fantastic question about light bending in the GR Stakos Netakis <autp@wsalaw.oa> - 2018-09-16 10:16 +0000
                Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-16 13:36 +0200
            Re: fantastic question about light bending in the GR Stakos Netakis <autp@wsalaw.oa> - 2018-09-16 10:14 +0000
              Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-16 11:55 -0700
            Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-16 23:24 +0200
              Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-17 07:57 +0200
                Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-17 23:16 +0200
                Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-17 23:18 +0200
                Re: fantastic question about light bending in the GR Stakos Netakis <autp@wsalaw.oa> - 2018-09-17 21:22 +0000
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-17 14:47 -0700
                Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-17 23:53 +0200
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-18 08:04 -0700
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-18 13:56 -0700
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-19 08:52 -0700
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-19 12:22 -0700
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-20 09:29 -0700
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-20 12:15 -0700
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-20 15:48 -0700
                Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-21 16:59 -0700
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-21 19:43 -0700
                Re: fantastic question about light bending in the GR Rhett Joyner <udof@rsrrfirv.on> - 2018-09-22 08:21 +0000
                Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-22 12:55 +0200
                Re: fantastic question about light bending in the GR Rhett Joyner <udof@rsrrfirwv.on> - 2018-09-23 09:42 +0000
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-23 13:18 -0700
                Re: fantastic question about light bending in the GR Hilton Packett <wod@wcothr.ce> - 2018-09-23 21:58 +0000
                Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-23 15:00 -0700
                Re: fantastic question about light bending in the GR Hilton Packett <wod@wcothr.ce> - 2018-09-24 20:16 +0000
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-23 16:37 -0700
                Re: fantastic question about light bending in the GR Hilton Packett <wod@wcothr.ce> - 2018-09-24 20:13 +0000
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-24 13:34 -0700
                Re: fantastic question about light bending in the GR Hilton Packett <wod@wcothr.ce> - 2018-09-24 21:45 +0000
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-24 15:12 -0700
                Re: fantastic question about light bending in the GR Hilton Packett <wod@wcothr.ce> - 2018-09-24 22:30 +0000
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-24 15:34 -0700
                Re: fantastic question about light bending in the GR Hilton Packett <wod@wcothr.ce> - 2018-09-24 22:47 +0000
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-24 19:44 -0700
                Re: fantastic question about light bending in the GR Hilton Packett <wod@wcothr.ce> - 2018-09-25 14:57 +0000
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-25 13:45 -0700
                Re: fantastic question about light bending in the GR Hilton Packett <wod@wcothr.ce> - 2018-09-27 22:44 +0000
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-22 09:13 -0700
                Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-22 19:57 +0200
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-22 12:42 -0700
                Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-23 08:58 +0200
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-23 09:14 -0700
                Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-23 18:29 +0200
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-23 10:28 -0700
                Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-23 20:37 +0200
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-23 11:53 -0700
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-26 11:45 -0700
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-26 12:30 -0700
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-26 12:37 -0700
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-26 13:43 -0700
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-26 15:45 -0700
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-27 09:26 -0700
                Re: fantastic question about light bending in the GR JanPB <filmart@gmail.com> - 2018-09-27 12:19 -0700
                Re: fantastic question about light bending in the GR alsor@interia.pl - 2018-09-28 10:48 -0700
                Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-30 13:23 -0700
                Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-18 09:35 +0200
                Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-18 22:07 +0200
                Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-19 02:27 +0200
                Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-18 17:30 -0700
      Re: fantastic question about light bending in the GR consequently7990662@gmail.com - 2018-09-12 23:29 -0700
        Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-13 19:10 +0200
          Re: fantastic question about light bending in the GR consequently7990662@gmail.com - 2018-09-13 18:09 -0700
            Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-13 18:19 -0700
              Re: fantastic question about light bending in the GR numbernumber1964@gmail.com - 2018-09-13 18:33 -0700
                Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-13 19:03 -0700
            Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-14 07:50 +0200
              Re: fantastic question about light bending in the GR mlwozniak@wp.pl - 2018-09-13 23:03 -0700
              Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-14 08:28 +0200
                Re: fantastic question about light bending in the GR mlwozniak@wp.pl - 2018-09-14 01:52 -0700
                Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-18 22:01 +0200
                Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-19 01:32 +0200
              Re: fantastic question about light bending in the GR Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-18 21:57 +0200
                Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-19 01:47 +0200
                Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-18 17:00 -0700
                Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-18 17:03 -0700
      Re: fantastic question about light bending in the GR mlwozniak@wp.pl - 2018-09-12 23:36 -0700
  Re: fantastic question about light bending in the GR consequently7990662@gmail.com - 2018-09-13 20:33 -0700
    Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-13 20:47 -0700
    Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-13 20:52 -0700
      Re: fantastic question about light bending in the GR consequently7990662@gmail.com - 2018-09-13 21:25 -0700
        Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-13 21:49 -0700
          Re: fantastic question about light bending in the GR consequently7990662@gmail.com - 2018-09-14 13:13 -0700
            Re: fantastic question about light bending in the GR mitchrae3323@gmail.com - 2018-09-14 16:00 -0700
    Re: fantastic question about light bending in the GR Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-09-14 07:54 +0200
  fantastic question about light bending in the GR "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-09-16 12:33 -0700

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