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From: John Jones on 6 Feb 2010 22:26 Pentcho Valev wrote: > Open Letter to: Martin Rees, President of the Royal Society > > Copy to: Professor John Pethica, Physical Secretary and Vice- > President, Professor Sir Michael Berry, Sir Peter Williams CBE, > Treasurer and Vice-President, Professor Lorna Casselton, Foreign > Secretary and Vice-President > > Dear Dr. Rees, > > Classical thermodynamics has been dead for a long time so when in 2001 > a respected scientist, Jos Uffink, declared that a version of the > second law of thermodynamics ("Entropy always increases") is a RED > HERRING, this sounded like an epitaph officially putting an end to any > further discussion: > > http://philsci-archive.pitt.edu/archive/00000313/ > Jos Uffink: "The historian of science and mathematician Truesdell made > a detailed study of the historical development of thermodynamics in > the period 1822-1854. He characterises the theory, even in its present > state, as 'a dismal swamp of obscurity' and 'a prime example to show > that physicists are not exempt from the madness of crowds'. He is > outright cynical about the respect with which nonmathematicians treat > the Second Law: "Clausius verbal statement of the second law makes no > sense [. . . ]. All that remains is a Mosaic prohibition; a century of > philosophers and journalists have acclaimed this commandment; a > century of mathematicians have shuddered and averted their eyes from > the unclean. Seven times in the past thirty years have I tried to > follow the argument Clausius offers [. . . ] and seven times has it > blanked and gravelled me. [. . . ] I cannot explain what I cannot > understand." From this anthology it emerges that although many > prominent physicists are firmly convinced of, and express admiration > for the Second Law, there are also serious complaints, especially from > mathematicians, about a lack of clarity and rigour in its formulation. > At the very least one can say that the Second Law suffers from an > image problem: its alleged eminence and venerability is not perceived > by everyone who has been exposed to it. What is it that makes this > physical law so obstreperous that every attempt at a clear formulation > seems to have failed? Is it just the usual sloppiness of physicists? > Or is there a deeper problem? And what exactly is the connection with > the arrow of time and irreversibility? Could it be that this is also > just based on bluff? Perhaps readers will shrug their shoulders over > these questions. Thermodynamics is obsolete; for a better > understanding of the problem we should turn to more recent, > statistical theories. But even then the questions we are about to > study have more than a purely historical importance. The problem of > reproducing the Second Law, perhaps in an adapted version, remains one > of the toughest, and controversial problems in statistical > physics.....This summary leads to the question whether it is fruitful > to see irreversibility or time-asymmetry as the essence of the second > law. Is it not more straightforward, in view of the unargued > statements of Kelvin, the bold claims of Clausius and the strained > attempts of Planck, to give up this idea? I believe that Ehrenfest- > Afanassjewa was right in her verdict that the discussion about the > arrow of time as expressed in the second law of the thermodynamics is > actually a RED HERRING." > > Einstein's relativity is younger than thermodynamics so its own > epitaph came only recently: > > http://www.newscientist.com/article/mg20026831.500-what-makes-the-universe-tick.html > "General relativity knits together space, time and gravity. > Confounding all common sense, how time passes in Einstein's universe > depends on what you are doing and where you are. Clocks run faster > when the pull of gravity is weaker, so if you live up a skyscraper you > age ever so slightly faster than you would if you lived on the ground > floor, where Earth's gravitational tug is stronger. "General > relativity completely changed our understanding of time," says Carlo > Rovelli, a theoretical physicist at the University of the > Mediterranean in Marseille, France.....It is still not clear who is > right, says John Norton, a philosopher based at the University of > Pittsburgh, Pennsylvania. Norton is hesitant to express it, but his > instinct - and the consensus in physics - seems to be that space and > time exist on their own. The trouble with this idea, though, is that > it doesn't sit well with relativity, which describes space-time as a > malleable fabric whose geometry can be changed by the gravity of > stars, planets and matter." > > http://www.pitt.edu/~jdnorton/Goodies/passage/index.html > John Norton: "A common belief among philosophers of physics is that > the passage of time of ordinary experience is merely an illusion. The > idea is seductive since it explains away the awkward fact that our > best physical theories of space and time have yet to capture this > passage. I urge that we should resist the idea. We know what illusions > are like and how to detect them. Passage exhibits no sign of being an > illusion....Following from the work of Einstein, Minkowski and many > more, physics has given a wonderfully powerful conception of space and > time. Relativity theory, in its most perspicacious form, melds space > and time together to form a four-dimensional spacetime. The study of > motion in space and and all other processes that unfold in them merely > reduce to the study of an odd sort of geometry that prevails in > spacetime. In many ways, time turns out to be just like space. In this > spacetime geometry, there are differences between space and time. But > a difference that somehow captures the passage of time is not to be > found. There is no passage of time. There are temporal orderings. We > can identify earlier and later stages of temporal processes and > everything in between. What we cannot find is a passing of those > stages that recapitulates the presentation of the successive moments > to our consciousness, all centered on the one preferred moment of > "now." At first, that seems like an extraordinary lacuna. It is, it > would seem, a failure of our best physical theories of time to capture > one of time's most important properties. However the longer one works > with the physics, the less worrisome it becomes....I was, I confess, a > happy and contented believer that passage is an illusion. It did > bother me a little that we seemed to have no idea of just how the news > of the moments of time gets to be rationed to consciousness in such > rigid doses.....Now consider the passage of time. Is there a > comparable reason in the known physics of space and time to dismiss it > as an illusion? I know of none. The only stimulus is a negative one. > We don't find passage in our present theories and we would like to > preserve the vanity that our physical theories of time have captured > all the important facts of time. So we protect our vanity by the > stratagem of dismissing passage as an illusion." > > The problem is that, despite Thomas Kuhn's revolutionary dreams, there > is no tumultuous "paradigm change"; rather, false theories just > silently die, burying with themselves an essential part of human > culture: > > ftp://ftp.esat.kuleuven.ac.be/pub/SISTA/markovsky/reports/06-46.pdf > "From the pedagogical point of view, thermodynamics is a disaster. As > the authors rightly state in the introduction, many aspects are > "riddled with inconsistencies". They quote V.I. Arnold, who concedes > that "every mathematician knows it is impossible to understand an > elementary course in thermodynamics". Nobody has eulogized this > confusion more colorfully than the late Clifford Truesdell. On page 6 > of his book "The Tragicomical History of Thermodynamics" 1822-1854 > (Springer Verlag, 1980), he calls thermodynamics "a dismal swamp of > obscurity". Elsewhere, in despair of trying to make sense of the > writings of some local heros as De Groot, Mazur, Casimir, and > Prigogine, Truesdell suspects that there is "something rotten in the > (thermodynamic) state of the Low Countries" (see page 134 of Rational > Thermodynamics, McGraw-Hill, 1969)." > > http://www.renewamerica.us/columns/hutchison/080616 > "Like bronze idols that are hollow inside, Einstein built a cluster of > "Potemkin villages," which are false fronts with nothing behind them. > Grigori Potemkin (17391791) was a general-field marshal, Russian > statesman, and favorite of Empress Catherine the Great. He is alleged > to have built facades of non-existent villages along desolate > stretches of the Dnieper River to impress Catherine as she sailed to > the Crimea in 1787. Actors posing as happy peasants stood in front of > these pretty stage sets and waved to the pleased Empress. This > incident reminds me of the story of Eleanor Roosevelt's Moscow tour > guide who showed her the living quarters of communist party bosses and > claimed that these were the apartments of the average Russian worker. > The incredibly gullible first lady was delighted. Like Catherine, the > sentimental Eleanor was prone to wishful thinking and was easily > deceived. What has all this to do with Einstein? The science > establishment has a powerful romantic desire to believe in Einstein. > Therefore, they are not only fooled by Einstein's tricks, they are > prepared to defend his Potemkin villages." > > http://www.informaworld.com/smpp/content~content=a909857880 > Peter Hayes "The Ideology of Relativity: The Case of the Clock > Paradox" : Social Epistemology, Volume 23, Issue 1 January 2009, pages > 57-78 > "The gatekeepers of professional physics in the universities and > research institutes are disinclined to support or employ anyone who > raises problems over the elementary inconsistencies of relativity. A > winnowing out process has made it very difficult for critics of > Einstein to achieve or maintain professional status. Relativists are > then able to use the argument of authority to discredit these critics. > Were relativists to admit that Einstein may have made a series of > elementary logical errors, they would be faced with the embarrassing > question of why this had not been noticed earlier. Under these > circumstances the marginalisation of antirelativists, unjustified on > scientific grounds, is eminently justifiable on grounds of > realpolitik. Supporters of relativity theory have protected both the > theory and their own reputations by shutting their opponents out of > professional discourse." > > http://www.guardian.co.uk/science/2007/may/22/highereducation.education > Harry Kroto: "The wrecking of British science....The scientific method > is based on what I prefer to call the inquiring mindset. It includes > all areas of human thoughtful activity that categorically eschew > "belief", the enemy of rationality. This mindset is a nebulous mixture > of doubt, questioning, observation, experiment and, above all, > curiosity, which small children possess in spades. I would argue that > it is the most important, intrinsically human quality we possess, and > it is responsible for the creation of the modern, enlightened portion > of the world that some of us are fortunate to inhabit. Curiously, for > the majority of our youth, the educational system magically causes > this capacity to disappear by adolescence.....Do I think there is any > hope for UK? I am really not sure." > > http://www.guardian.co.uk/science/2005/nov/22/schools.g2 > "We are nearing the end of the "World Year of Physics", otherwise > known as Einstein Year, as it is the centenary of his annus mirabilis > in which he made three incredible breakthroughs, including special > relativity. In fact, it was 100 years ago yesterday that he published > the most famous equation in the history of physics: E=mc2. But instead > of celebrating, physicists are in mourning after a report showed a > dramatic decline in the number of pupils studying physics at school. > The number taking A-level physics has dropped by 38% over the past 15 > years, a catastrophic meltdown that is set to continue over the next > few years. The report warns that a shortage of physics teachers and a > lack of interest from pupils could mean the end of physics in state > schools. Thereafter, physics would be restricted to only those > students who could afford to go to posh schools. Britain was the home > of Isaac Newton, Michael Faraday and Paul Dirac, and Brits made world- > class contributions to understanding gravity, quantum physics and > electromagnetism - and yet the British physicist is now facing > extinction. But so what? Physicists are not as cuddly as pandas, so > WHO CARES IF WE DISAPPEAR?" > > Dr. Rees, the Royal Society bestowed Einstein on humankind in 1919; > now it is time for redemption. I am sure you are considering some kind > of redemption: > > 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. (...) Cynics > said that Einstein might as well have gone fishing from 1920 onwards, > given the failure of much of his research." Lord Rees is President of > the Royal Society > > http://www.telegraph.co.uk/technology/3338512/Think-big-like-Einstein.html > Martin Rees: "Cynics have said that Einstein might as well have gone > fishing from 1920 onwards. Although there's something rather noble > about the way he persevered in his attempts to reach far beyond his > grasp, in some respects THE EINSTEIN CULT SENDS THE WRONG SIGNAL." > > Pentcho Valev > pvalev(a)yahoo.com |