Article View: sci.physics.relativity
Article #1214Re: THE SHORTEST HISTORY OF RELATIVITY
From: Pentcho Valev
Date: Fri, 14 Aug 2009 06:46
Date: Fri, 14 Aug 2009 06:46
103 lines
7502 bytes
7502 bytes
> http://www.speed-light.info/speed_of_light_variable.htm > "Einstein wrote this paper in 1911 in German (download from: http://www.physik.uni-augsburg.de/annalen/history/einstein-papers/1911_35_898-908.pdf > ). It predated the full formal development of general relativity by > about four years. You can find an English translation of this paper in > the Dover book 'The Principle of Relativity' beginning on page 99; you > will find in section 3 of that paper Einstein's derivation of the > variable speed of light in a gravitational potential, eqn (3). The > result is: c'=c0(1+phi/c^2) where phi is the gravitational potential > relative to the point where the speed of light co is measured......You > can find a more sophisticated derivation later by Einstein (1955) from > the full theory of general relativity in the weak field > approximation....For the 1955 results but not in coordinates see page > 93, eqn (6.28): c(r)=[1+2phi(r)/c^2]c. Namely the 1955 approximation > shows a variation in km/sec twice as much as first predicted in > 1911." > > Sooner or later Einsteiniana's teachers will have to answer the simple > question: The gravitational redshift factor 1+phi/c^2 experimentally > confirmed by Pound and Rebka is consistent with: > > (A) Einstein's 1911 equation c'=c(1+phi/c^2) GIVEN BY NEWTON'S > EMISSION THEORY OF LIGHT? > > (B) Einstein's 1955 (in fact, it was devised in 1915) camouflage c'=c > (1+2phi/c^2)? > > Then Einsteiniana's teachers will have to explain why they have been > so silent about this simple problem for so long. Einsteiniana's teachers will also have to explain why they have established a schizophrenic atmosphere in which the falsehood of Einstein's 1905 light postulate is constantly hinted at by teachers themselves but any criticism coming from heretics is fiercely persecuted: http://www.fqxi.org/community/articles/display/116 "In addition, some quantum-spacetime models predict a particular relationship between the speed of photons in gamma rays and their energy. There have already been tantalizing hints of these effects. In 2007, for instance, the MAGIC gamma-ray telescope collaboration based on La Palma in the Canary Islands announced that they had measured a 4- minute time difference between the arrival of high and low-energy gamma rays released at the same time in a flare from the Markarian 501 galaxy, some half a billion light years away (Physics Letters B, 668, 253-257, 2008). Standard theories suggest that the photons should have arrived simultaneously. Along with Lee Smolin at the Perimeter Institute in Waterloo, Ontario, Amelino-Camelia has begun analyzing new gamma-ray data from NASAβs Fermi Telescope, launched in June 2008 (see image above right). The new data show similar delays in the arrival times of photons, which they believe will help physicists discriminate between these models." http://www.fqxi.org/data/articles/Searching_for_the_Golden_Spike.pdf "Loop quantum gravity also makes the heretical prediction that the speed of light depends on its frequency. That prediction violates special relativity, Einstein's rule that light in a vacuum travels at a constant speed for all observers..." http://query.nytimes.com/gst/fullpage.html?res=9E03E7D8143FF932A05751C1A9649C8B63&sec=&spon=&pagewanted=all "As propounded by Einstein as an audaciously confident young patent clerk in 1905, relativity declares that the laws of physics, and in particular the speed of light -- 186,000 miles per second -- are the same no matter where you are or how fast you are moving. Generations of students and philosophers have struggled with the paradoxical consequences of Einstein's deceptively simple notion, which underlies all of modern physics and technology, wrestling with clocks that speed up and slow down, yardsticks that contract and expand and bad jokes using the word ''relative.''......''Perhaps relativity is too restrictive for what we need in quantum gravity,'' Dr. Magueijo said. ''We need to drop a postulate, perhaps the constancy of the speed of light.'' http://www.prospectmagazine.co.uk/2003/04/waseinsteinwrong/ Paul Davies: "Was Einstein wrong? Einstein's famous equation E=mc2 is the only scientific formula known to just about everyone. The "c" here stands for the speed of light. It is one of the most fundamental of the basic constants of physics. Or is it? In recent years a few maverick scientists have claimed that the speed of light might not be constant at all. Shock, horror! Does this mean the next Great Revolution in Science is just around the corner?" http://www.freerepublic.com/focus/f-news/519406/posts "A GROUP of astronomers and cosmologists has warned that the laws thought to govern the universe, including Albert Einstein's theory of relativity, must be rewritten. The group, which includes Professor Stephen Hawking and Sir Martin Rees, the astronomer royal, say such laws may only work for our universe but not in others that are now also thought to exist. "It is becoming increasingly likely that the rules we had thought were fundamental through time and space are actually just bylaws for our bit of it," said Rees, whose new book, Our Cosmic Habitat, is published next month. "Creation is emerging as even stranger than we thought." Among the ideas facing revision is Einstein's belief that the speed of light must always be the same - 186,000 miles a second in a vacuum. There is growing evidence that light moved much faster during the early stages of our universe. Rees, Hawking and others are so concerned at the impact of such ideas that they recently organised a private conference in Cambridge for more than 30 leading cosmologists." Pentcho Valev pvalev@yahoo.com
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X-Google-Thread: 237b8ad48,ddddb3ccc0c937c4 X-Google-Attributes: gid237b8ad48,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,CP1252 Path: arc1-ca.pugleaf.net!g2news2.google.com!postnews.google.com!n11g2000yqb.googlegroups.com!not-for-mail From: Pentcho Valev <pvalev@yahoo.com> Newsgroups: sci.physics.relativity,sci.physics,fr.sci.physique,fr.sci.astrophysique Subject: Re: THE SHORTEST HISTORY OF RELATIVITY Date: Thu, 13 Aug 2009 23:46:47 -0700 (PDT) Organization: http://groups.google.com Lines: 103 Message-ID: <8b224f9f-d916-491f-b61a-81e898ea2e68@n11g2000yqb.googlegroups.com> References: <3b0e50e0-3832-47ad-8c65-80f49c045573@s15g2000yqs.googlegroups.com> <4A7323D4.F254F243@hate.spam.net> <ef7c1ccd-3e7b-48e5-a1b5-9aa92ba382ae@k6g2000yqn.googlegroups.com> <b741fcc9-1ad6-4bb3-bb9d-6876b1c1c7bd@b14g2000yqd.googlegroups.com> <721d1e44-4ff4-45c7-91c9-d2a4c5a9384b@p36g2000vbn.googlegroups.com> <4092013c-1c8d-42dd-b6af-931f2ffd8718@d4g2000vbm.googlegroups.com> <f8b4e0e7-8aef-48e9-910b-e916427ef361@l35g2000vba.googlegroups.com> NNTP-Posting-Host: 89.215.201.39 Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable X-Trace: posting.google.com 1250232407 25831 127.0.0.1 (14 Aug 2009 06:46:47 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Fri, 14 Aug 2009 06:46:47 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: n11g2000yqb.googlegroups.com; posting-host=89.215.201.39; posting-account=Lz-LbgoAAABPDavKeW-eYeobwLHD_cvQ User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1),gzip(gfe),gzip(gfe)