Article View: sci.physics.relativity
Article #929Re: THE REASON BEHIND DARK ENERGY
From: Pentcho Valev
Date: Fri, 11 Dec 2009 06:33
Date: Fri, 11 Dec 2009 06:33
85 lines
6334 bytes
6334 bytes
Sometimes hints come from the Royal Society but billions are billions and work in the Kingdom of Dark Energy continues: http://www.telegraph.co.uk/science/6057362/Give-scientists-the-freedom-to-be-wrong.html Martin Rees: "Over the past week, two stories in the press have suggested that scientists have been very wrong about some very big issues. First, a new paper seemed to suggest that dark energy the mysterious force that makes up three quarters of the universe, and is pushing the galaxies further apart might not even exist." I think Einsteinians should take more notice of what the Royal Society, Einsteiniana's creator, says. A few years ago the Royal Society said tests on Divine Albert's Divine Theory should stop and they did stop: http://www.telegraph.co.uk/science/science-news/3322462/Did-Einstein-get-all-his-sums-right.html "Did Einstein get all his sums right?.....Last week, an American probe began an 18-month mission to put Einstein's prediction to the test, 90 years after he unveiled his ideas in Berlin. Gravity Probe B was blasted into space from the Vandenberg Air Force Base in California on a Boeing Delta 2 rocket and will orbit the Earth for more than a year. The $700 million joint mission between Nasa and Stanford University, conceived in 1958, uses four of the most perfect spheres ever created inside the world's largest Thermos flask to detect minute distortions in the fabric of the universe.....Sir Martin Rees, the Astronomer Royal, said: "The project's a technical triumph, and a triumph of the persistence and lobbying power of Stanford University. But its gestation has been grotesquely prolonged, and the cost overruns have been equally gross. I recall hearing a talk about the project from Francis Everitt (principal investigator) when I was still a student and it was already well advanced. "Back in the 1960s the evidence for Einstein's theory was meagre just two tests, with 10 per cent precision. But relativity is now confirmed by several tests, with precision of one part in 10,000. It's still, in principle, good to have new and different tests. But the level of confidence in Einstein's theory is now so high that an announcement of the expected result will 'fork no lightening'. "Moreover, if there's an unexpected result, I suspect most people will suspect an error in this very challenging experiment rather than immediately abandon Einstein: There's now so much evidence corroborating Einstein, that a high burden of proof is required before he'll be usurped by any rival theory. "So the most exciting if un-alluring outcome of Gravity Probe B would be a request by Stanford University for another huge sum of money to repeat it." Pentcho Valev wrote: The only reason behind Dark Energy: http://www.physorg.com/news179508040.html "More than a dozen ground-based Dark Energy projects are proposed or under way, and at least four space-based missions, each of the order of a billion dollars, are at the design concept stage." Sometimes the correct solution to the problem is hinted at in Einsteiniana but then no billions, not even millions, come and Einsteinians promise not to hint anymore: http://www.sciscoop.com/story/2008/10/30/41323/484 "Does the apparently constant speed of light change over the vast stretches of the universe? Would our understanding of black holes, ancient supernovae, dark matter, dark energy, the origins of the universe and its ultimate fate be different if the speed of light were not constant?.....Couldn't it be that the supposed vacuum of space is acting as an interstellar medium to lower the speed of light like some cosmic swimming pool? If so, wouldn't a stick plunged into the pool appear bent as the light is refracted and won't that affect all our observations about the universe. I asked theoretical physicist Leonard Susskind, author of The Black Hole War, recently reviewed in Science Books to explain this apparent anomaly....."You are entirely right," he told me, "there are all sorts of effects on the propagation of light that astronomers and astrophysicists must account for. The point of course is that they (not me) do take these effects into account and correct for them." "In a way this work is very heroic but unheralded," adds Susskind, "An immense amount of extremely brilliant analysis has gone into the detailed corrections that are needed to eliminate these 'spurious' effects so that people like me can just say 'light travels with the speed of light.' So, there you have it. My concern about cosmic swimming pools and bent sticks does indeed apply, but physicists have taken the deviations into account so that other physicists, such as Susskind, who once proved Stephen Hawking wrong, can battle their way to a better understanding of the universe." Pentcho Valev pvalev@yahoo.com
Technical Details
Message-ID:
<1d165074-e43a-45b5-98c0-cb6bb9c8dfb8@g7g2000yqa.googlegroups.com>Path:
arc1-ca.pugleaf.net!g2news1.google.com!postnews.google.com!g7g2000yqa.googlegroups.com!not-for-mailReferences:
<c336ce43-e57e-4039-9634-5d637c69bfea@z41g2000yqz.googlegroups.com> <e311838e-a30b-4c2a-bf9c-d56426a60927@j9g2000prh.googlegroups.com> <ceb46fa6-8c8a-4151-a708-fe9a6afe0883@x25g2000prf.googlegroups.com>Show Full Headers
Complete Article Headers
X-Google-Thread: 237b8ad48,23c5bcec5681ea1d X-Google-Attributes: gid237b8ad48,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!postnews.google.com!g7g2000yqa.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 REASON BEHIND DARK ENERGY Date: Thu, 10 Dec 2009 22:33:02 -0800 (PST) Organization: http://groups.google.com Lines: 85 Message-ID: <1d165074-e43a-45b5-98c0-cb6bb9c8dfb8@g7g2000yqa.googlegroups.com> References: <c336ce43-e57e-4039-9634-5d637c69bfea@z41g2000yqz.googlegroups.com> <e311838e-a30b-4c2a-bf9c-d56426a60927@j9g2000prh.googlegroups.com> <ceb46fa6-8c8a-4151-a708-fe9a6afe0883@x25g2000prf.googlegroups.com> NNTP-Posting-Host: 89.215.201.43 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: posting.google.com 1260513183 8731 127.0.0.1 (11 Dec 2009 06:33:03 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Fri, 11 Dec 2009 06:33:03 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: g7g2000yqa.googlegroups.com; posting-host=89.215.201.43; 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)