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Article #15571Re: The Motion of the Perihelion of Mercury
From: Pentcho Valev
Date: Mon, 29 Dec 2008 06:40
Date: Mon, 29 Dec 2008 06:40
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3880 bytes
On Dec 29, 12:49 am, Loui...@edu.herlufsholm.dk wrote: > THE MOTION OF THE PERIHELION OF MERCURY > In his general relativity calculation of the motion of the perihelion > of Mercury Albert Einstein had only taken into account the > gravitational actions between the Sun and the Mercury, which he also > assumed as two points. > > What will be, according to the theory of general relativity, the value > of the motion of the perihelion of Mercury if the gravitational > actions of all the planets in the solar system are taken into account > and also it is taken into account that the Sun is a little oblate? > > Have any done these calculations? > > Best regards > Louis Nielsen > Denmark As fas as I know, the only person dealing explicitly and honestly with this is the French astrophysicist Jean-Marc Bonnet-Bidaud. Einstein has made his calculations on the assumption that the mass of the sun is perfectly spherical, and if it is not, the confirmation of relativity becomes in fact a refutation: http://astronomy.ifrance.com/pages/gdes_theories/einstein.html "Le deuxième test classique donne en revanche des inquiétudes. Historiquement, pourtant, l'explication de l'avance du périhélie de Mercure, proposé par Einstein lui-même, donna ses lettres de noblesse à la relativité générale. Il s'agissait de comprendra pourquoi le périhélie de Mercure ( le point de son orbite le plus proche du soleil ) se déplaçait de 574 s d'arc par siècle. Certes, sur ces 574 s, 531 s'expliquaient par les perturbations gravitationnels dues aux autres planètes. Mais restait 43 s, le fameux effet "périhélique" inexpliqué par les lois de Newton. Le calcul relativiste d'Einstein donna 42,98 s ! L'accord et si parfait qu'il ne laisse la place à aucune discussion. Or depuis 1966, le soleil est soupçonné ne pas être rigoureusement sphérique mais légèrement aplati à l'équateur. Une très légère dissymétries qui suffirait à faire avancer le périhélie de quelques secondes d'arc. Du coup, la preuve se transformerait en réfutation puisque les 42,88 s du calcul d'Einstein ne pourrait pas expliquer le mouvement réel de Mercure." More explanation here: http://www.cieletespaceradio.fr/index.php/2008/05/26/390-histoire-des-sciences- les-preuves-de-la-relativite (ECOUTEZ!) Pentcho Valev pvalev@yahoo.com
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X-Google-Thread: 10b271,380e74b46a702d09 X-Google-Thread: 10f545,380e74b46a702d09 X-Google-Thread: 111645,9ac11dc52cff66a8,start X-Google-Attributes: gid10b271,gid10f545,gid111645,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII Path: arc1-ca.pugleaf.net!g2news2.google.com!postnews.google.com!g1g2000pra.googlegroups.com!not-for-mail From: Pentcho Valev <pvalev@yahoo.com> Newsgroups: sci.physics,sci.physics.relativity,sci.astro,fr.sci.physique,fr.sci.astrophysique Subject: Re: The Motion of the Perihelion of Mercury Date: Sun, 28 Dec 2008 22:40:20 -0800 (PST) Organization: http://groups.google.com Lines: 54 Message-ID: <2fc21e9a-0962-42b9-a26d-363d830b4525@g1g2000pra.googlegroups.com> References: <1fed2745-f00c-49c2-8c22-3ffcabb0a4d7@x16g2000prn.googlegroups.com> NNTP-Posting-Host: 79.100.231.46 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: posting.google.com 1230532820 4410 127.0.0.1 (29 Dec 2008 06:40:20 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Mon, 29 Dec 2008 06:40:20 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: g1g2000pra.googlegroups.com; posting-host=79.100.231.46; posting-account=Lz-LbgoAAABPDavKeW-eYeobwLHD_cvQ User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30),gzip(gfe),gzip(gfe)