Article View: sci.physics.relativity
Article #6986Re: RATIONALISM IN CRISIS (DEAD?)
From: Pentcho Valev
Date: Mon, 02 Mar 2009 07:05
Date: Mon, 02 Mar 2009 07:05
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When it comes to destroying human rationality, Einsteinians know no limits. They continue to do so even when they are trying to abandon Divine Albert's Divine Theory: http://thescotsman.scotsman.com/features/About-Time.5027196.jp "....time travel, once dismissed as pulp fiction by serious scientists, has become "something of a cottage industry in the theoretical physics community", according to Professor Paul Davies, physicist, astrobiologist and award-winning science writer, who a few years ago published a book with the engagingly no-nonsense title of How To Build A Time Machine. In it, Davies makes it clear that travelling into the future is entirely allowable, according to Einsteinian laws of physics....Coming back, however, is a different matter. It is one for which Davies and others have speculated on the possibility of harnessing the power of "wormholes". Remember those fearsome tunnels through time and space down which Jodie Foster hurtled in the film Contact? That was Hollywood's vision, but the concept of wormholes – originally called "Einstein-Rosen bridges" – has been speculated on since the 1930s, as tunnel-like shortcuts through space and time, because the unimaginably powerful gravitational forces within them could be harnessed to warp the space- time continuum....It has been speculated that the LHC, once it starts functioning properly, could possibly form Einstein-Rosen bridges. "There is a ghost of a chance, but no more than that in my opinion, that it could create microscopic wormholes," says Davies. Such thinking involves what he describes as "rather speculative, non- standard theories of gravitation. If we go with Einstein's General Theory of Relativity (which attributes gravity to the curving of space and time), which is what most of the discussion in my book was based on, then it's not going to happen. But in recent years there has been increasing attention given to alternatives to Einstein's theory, and one of those involves additional dimensions of space.".....Much of the research pertaining to this ever-intriguing topic takes us out of the relatively solid world of classical physics and Einsteinian theory and into the realms of quantum mechanics, with scientists questing after the "holy grail" of 21st-century physics, an overall theory of quantum gravity, which would supersede Einstein's and be applied to everything in the cosmos. Among those working towards this are Dr Charles Wang, reader in physics at the University of Aberdeen. "If we have a breakthrough in quantum gravity, then time travel would stand a better chance. We certainly expect some interesting result to come out soon – although we can't really promise a time machine," he laughs." A few years ago the salfsame Paul Davies explained why Divine Albert's Divine Theory should be abandoned: http://www.prospect-magazine.co.uk/article_details.php?id=5538 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?" Other creators of quantum gravity, the theory "which would supersede Einstein's and be applied to everything in the cosmos", clearly state their most important task: ''We need to drop a postulate, perhaps the constancy of the speed of light'': 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://www.edge.org/3rd_culture/smolin03/smolin03_print.html Lee Smolin: "Now, here is the really interesting part: Some of the effects predicted by the theory appear to be in conflict with one of the principles of Einstein's special theory of relativity, the theory that says that the speed of light is a universal constant. It's the same for all photons, and it is independent of the motion of the sender or observer. How is this possible, if that theory is itself based on the principles of relativity? The principle of the constancy of the speed of light is part of special relativity, but we quantized Einstein's general theory of relativity.....But there is another possibility. This is that the principle of relativity is preserved, but Einstein's special theory of relativity requires modification so as to allow photons to have a speed that depends on energy. The most shocking thing I have learned in the last year is that this is a real possibility. A photon can have an energy-dependent speed without violating the principle of relativity! This was understood a few years ago by Amelino Camelia. I got involved in this issue through work I did with Joao Magueijo, a very talented young cosmologist at Imperial College, London. During the two years I spent working there, Joao kept coming to me and bugging me with this problem.....These ideas all seemed crazy to me, and for a long time I didn't get it. I was sure it was wrong! But Joao kept bugging me and slowly I realized that they had a point. We have since written several papers together showing how Einstein's postulates may be modified to give a new version of special relativity in which the speed of light can depend on energy." http://roychristopher.com/joao-magueijo-frontier-cosmology "Likewise, Joao Magueijo has radical ideas, but his ideas intend to turn that Einsteinian dogma on its head. Marueijo is trying to pick apart one of Einsteins most impenetrable tenets, the constancy of the speed of light. This idea of a constant speed (about 3×106 meters/ second) is familiar to anyone who is remotely acquainted with modern physics. It is known as the universal speed limit. Nothing can, has, or ever will travel faster than light. Magueijo doesnt buy it. His VSL (Varying Speed of Light) presupposes a speed of light that can be energy or time-space dependent. Before you declare that hes out of his mind, understand that this man received his doctorate from Cambridge, has been a faculty member at Princeton and Cambridge, and is currently a professor at Imperial College, London. Hes a MAINSTREAM SCIENTIST WHOSE MIND IS BEGINNING TO WANDER." 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.'' Pentcho Valev pvalev@yahoo.com
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X-Google-Thread: 10f545,1618158a0f29065f X-Google-Thread: 10b271,1618158a0f29065f X-Google-Thread: fa4c1,1618158a0f29065f X-Google-Attributes: gid10f545,gid10b271,gidfa4c1,domainid0,public,usenet X-Google-Language: ENGLISH,CP1252 Path: arc1-ca.pugleaf.net!g2news2.google.com!postnews.google.com!w9g2000yqa.googlegroups.com!not-for-mail From: Pentcho Valev <pvalev@yahoo.com> Newsgroups: sci.physics.relativity,sci.physics,fr.sci.physique Subject: Re: RATIONALISM IN CRISIS (DEAD?) Date: Sun, 1 Mar 2009 23:05:49 -0800 (PST) Organization: http://groups.google.com Lines: 124 Message-ID: <b993294d-209e-4339-a439-b25b031ffe4a@w9g2000yqa.googlegroups.com> References: <f4907bc4-65bd-42d2-82ad-ec653137343b@d19g2000yqb.googlegroups.com> <09bb2905-f319-4c50-bbad-48c1f7d58bf3@m4g2000vbp.googlegroups.com> <b0aae140-9022-4963-bde8-1052a866df80@l39g2000yqn.googlegroups.com> NNTP-Posting-Host: 79.100.231.46 Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable X-Trace: posting.google.com 1235977550 7153 127.0.0.1 (2 Mar 2009 07:05:50 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Mon, 2 Mar 2009 07:05:50 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: w9g2000yqa.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)