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Groups > sci.physics.relativity > #389775
| From | bartekltg <bartekltg@gmail.com> |
|---|---|
| Newsgroups | sci.physics.relativity |
| Subject | Re: The cones of Gauss |
| Date | 2016-08-11 10:55 +0200 |
| Organization | ATMAN - ATM S.A. |
| Message-ID | <nohehu$fvm$1@node2.news.atman.pl> (permalink) |
| References | <4d997a2b-652d-44d4-a56b-946e8ccb9c0f@googlegroups.com> |
On 11.08.2016 04:49, Peter Riedt wrote: > The cones of Gauss > > Gauss theorem is relevant. In 1809 he published ‘Theoria Motus > Corporum Coelestium in sectionibus conicis solem ambientium’ (Theory > of the celestial bodies moving in conical sections around the sun’). > > Cones are very important in the subject of gravity. But Sylvia's and > Bod's understanding is not correct. Wrong Gauss theorem. https://en.wikipedia.org/wiki/Gauss%27s_law [the article is about electrostatic, but the theorem work for Newtonian gravitation too. ] > Sylvia's cones are inverted cones with the apex at the centre of the > sun or a planet. Their base is at the surface where she assumes the > gravity is at the maximum decreasing to zero at the centre. Let me > ask Sylvia a question: "What makes a surface special in that gravity > decreases from it to the centre and also that it decreases from it > into the depths of space? Why is gravity at a maximum at the > surface?" Mass. Matter. Above the surface there is no matter, below it there is matter;-) If you do not have a "physical intuition", just solve equations (for simplicity for homogeneous planet). With gauss theorem is easy. Without it, with only integral over dm r/|r|^3 it is a bit harder, you need basic calculus. But Newton have done it, and ha had to invented calculus;-) And science students are solving this exercise every year. As a consolation prize you can get, that while _force_ decrees when going into a planet, the gravitational potential is at the maximum at the centre. > > Bod's understanding is based on gravity being affected by the makeup > of the inside of a solar object. He also quotes Gauss' theorem where > gravity is due to the mass inside a radius. But he does not > understand the meaning of 'radius'. He assumes it is zero at the > centre. Gauss theorem does not. Gauss' radius has a base the width > and breath of the equatorial plane of a solar body (Sun's > radius=696000km) and is the base of a cone with an apex at each > planet and all other solar objects. Gravity is at a maximum at the > centre and decreasing to the surface and out into space in every > direction. As I said before, you googled different Gauss law that they have in mind. bartekltg
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The cones of Gauss Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-10 19:49 -0700
The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-10 20:25 -0700
The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-10 20:30 -0700
The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-10 20:51 -0700
Re: The cones of Gauss Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-10 21:10 -0700
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-10 21:15 -0700
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-11 05:37 -0700
The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-10 21:12 -0700
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-11 07:32 +0200
Re: The cones of Gauss "Dono," <sa_ge@comcast.net> - 2016-08-10 22:36 -0700
Re: The cones of Gauss "Dono," <sa_ge@comcast.net> - 2016-08-10 22:53 -0700
Re: The cones of Gauss Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-10 23:28 -0700
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-11 08:40 +0200
Re: The cones of Gauss Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-11 00:38 -0700
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-12 07:00 +0200
Re: The cones of Gauss Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-11 22:13 -0700
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-12 08:19 +0200
Re: The cones of Gauss Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-12 00:17 -0700
Re: The cones of Gauss mlwozniak@wp.pl - 2016-08-12 00:32 -0700
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-12 11:33 +0200
Re: The cones of Gauss mlwozniak@wp.pl - 2016-08-12 03:13 -0700
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-12 13:32 +0200
Re: The cones of Gauss mlwozniak@wp.pl - 2016-08-12 05:20 -0700
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-12 14:40 +0200
Re: The cones of Gauss mlwozniak@wp.pl - 2016-08-12 05:59 -0700
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-12 16:09 +0200
Re: The cones of Gauss Maciej Woźniak <mlwozniak@wp.pl> - 2016-08-12 21:12 +0200
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-12 21:32 +0200
Re: The cones of Gauss Virgil <VIRGIL@VIRGIL.com> - 2016-08-12 13:53 -0600
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-12 22:15 +0200
Re: The cones of Gauss Maciej Woźniak <mlwozniak@wp.pl> - 2016-08-12 22:30 +0200
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-12 13:14 -0700
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-12 22:16 +0200
Re: The cones of Gauss Maciej Woźniak <mlwozniak@wp.pl> - 2016-08-12 22:36 +0200
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-12 13:51 -0700
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-12 14:01 -0700
Re: The cones of Gauss Poutnik <poutnik4nntp@gmail.com> - 2016-08-11 08:01 +0200
Re: The cones of Gauss bartekltg <bartekltg@gmail.com> - 2016-08-11 10:55 +0200
Re: The cones of Gauss Odd Bodkin <bodkinodd@gmail.com> - 2016-08-11 09:41 -0500
Re: The cones of Gauss Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-11 18:46 -0700
Re: The cones of Gauss Odd Bodkin <bodkinodd@gmail.com> - 2016-08-12 07:16 -0500
Re: The cones of Gauss Thomas Heger <ttt_heg@web.de> - 2016-08-12 06:16 +0200
Re: The cones of Gauss Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-11 22:37 -0700
Re: The cones of Gauss Thomas Heger <ttt_heg@web.de> - 2016-08-12 22:54 +0200
Re: The cones of Gauss Thomas Heger <ttt_heg@web.de> - 2016-08-13 07:11 +0200
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-13 05:38 -0700
Re: The cones of Gauss Thomas Heger <ttt_heg@web.de> - 2016-08-14 06:55 +0200
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-14 06:23 -0700
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-14 07:41 -0700
Re: The cones of Gauss Thomas Heger <ttt_heg@web.de> - 2016-08-16 22:43 +0200
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-17 10:01 -0700
Re: The cones of Gauss Thomas Heger <ttt_heg@web.de> - 2016-08-18 07:37 +0200
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-12 07:54 -0700
Re: The cones of Gauss Sylvia Else <sylvia@not.at.this.address> - 2016-08-18 17:35 +1000
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-18 08:35 -0700
Re: The cones of Gauss Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-18 17:52 -0700
Re: The cones of Gauss "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-08-18 18:35 -0700
Re: The cones of Gauss Tom Roberts <tjroberts137@sbcglobal.net> - 2016-08-18 20:37 -0500
Re: The cones of Gauss Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-18 18:52 -0700
Re: The cones of Gauss pnalsing@gmail.com - 2016-08-18 19:29 -0700
Re: The cones of Gauss Odd Bodkin <bodkinodd@gmail.com> - 2016-08-19 07:34 -0500
Re: The cones of Gauss Sylvia Else <sylvia@not.at.this.address> - 2016-08-19 12:26 +1000
Re: The cones of Gauss Odd Bodkin <bodkinodd@gmail.com> - 2016-08-19 07:31 -0500
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