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Re: Tidal Forces - revisited, still unanswered

From Ethel Ocallaghan <unlgclo@awlwaac.ag>
Newsgroups sci.physics.relativity
Subject Re: Tidal Forces - revisited, still unanswered
Date 2017-09-03 22:12 +0000
Organization Ethel Ocallaghan Institute
Message-ID <oohuok$1div$1@gioia.aioe.org> (permalink)
References (3 earlier) <1a594d50-0fad-40b0-b99a-10a306b23b9b@googlegroups.com> <oo8he0$ul2$1@gioia.aioe.org> <d129d906-4971-48bc-8a0d-dc2953b9c222@googlegroups.com> <ooe555$1an5$1@gioia.aioe.org> <6e9cc545-efa9-45e6-8f7e-c262e467b82c@googlegroups.com>

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JanPB wrote:

>> >     D_T( D_T(U) ) = R_{T,U} T
>> > So in GR you can calculate tidal forces by evaluating the Riemann
>> > tensor on certain vectors representing the body in question.
>> 
>> These symbols explain no _action at distance_, much less Forces, then
>> it doesn't impress anybody. Better luck next time.
> 
> WHAT "action at a distance"?

I believe I can see your point. It implies that the curvature has to be 
more than a "geometrical projection". Super-positioned here by the Moon 
and the Earth's curvature. And if this is the case, than the curvature is 
MUCH more than simply geodesics and geometrical projection. It gets ways 
too complex pretty fast.

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Thread

Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-08-27 09:34 +0000
  Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-08-27 09:44 +0000
    Re: Tidal Forces - revisited, still unanswered Sylvia Else <sylvia@not.at.this.address> - 2017-08-27 22:09 +1000
      Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-08-27 15:20 +0000
        Re: Tidal Forces - revisited, still unanswered Sylvia Else <sylvia@not.at.this.address> - 2017-08-28 14:38 +1000
          Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-08-28 19:04 +0000
            Re: Tidal Forces - revisited, still unanswered Sylvia Else <sylvia@not.at.this.address> - 2017-08-29 14:46 +1000
              Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-08-29 09:28 +0000
                Re: Tidal Forces - revisited, still unanswered Sylvia Else <sylvia@not.at.this.address> - 2017-08-29 22:07 +1000
                Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-08-29 16:36 +0000
                Re: Tidal Forces - revisited, still unanswered Sylvia Else <sylvia@not.at.this.address> - 2017-08-30 10:18 +1000
                Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-08-31 06:17 +0000
                Re: Tidal Forces - revisited, still unanswered Sylvia Else <sylvia@not.at.this.address> - 2017-08-31 17:10 +1000
                Re: Tidal Forces - revisited, still unanswered Ned Latham <nedlatham@woden.valhalla.oz> - 2017-08-31 02:11 -0500
  Re: Tidal Forces - revisited, still unanswered JanPB <filmart@gmail.com> - 2017-08-29 15:12 -0700
    Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-08-31 06:15 +0000
      Re: Tidal Forces - revisited, still unanswered JanPB <filmart@gmail.com> - 2017-08-31 00:45 -0700
        Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-08-31 08:29 +0000
          Re: Tidal Forces - revisited, still unanswered JanPB <filmart@gmail.com> - 2017-09-01 12:29 -0700
            Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-09-02 11:37 +0000
              Re: Tidal Forces - revisited, still unanswered Sylvia Else <sylvia@not.at.this.address> - 2017-09-03 11:21 +1000
                Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-09-03 10:58 +0000
              Re: Tidal Forces - revisited, still unanswered JanPB <filmart@gmail.com> - 2017-09-02 22:08 -0700
                Re: Tidal Forces - revisited, still unanswered Bídníkùm Laterá <bila@wehia.ui> - 2017-09-03 10:58 +0000
                Re: Tidal Forces - revisited, still unanswered JanPB <filmart@gmail.com> - 2017-09-04 05:16 -0700
                Re: Tidal Forces - revisited, still unanswered Ethel Ocallaghan <unlgclo@awlwaac.ag> - 2017-09-04 22:47 +0000
                Re: Tidal Forces - revisited, still unanswered Ethel Ocallaghan <unlgclo@awlwaac.ag> - 2017-09-03 22:12 +0000
                Re: Tidal Forces - revisited, still unanswered JanPB <filmart@gmail.com> - 2017-09-04 05:18 -0700
                Re: Tidal Forces - revisited, still unanswered mlwozniak@wp.pl - 2017-09-04 05:54 -0700
                Re: Tidal Forces - revisited, still unanswered Ethel Ocallaghan <unlgclo@awlwaac.ag> - 2017-09-05 12:19 +0000

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