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THE END OF SCIENCE
In 1850 Clausius DEDUCED the second law of thermodynamics from the
assumption that heat "always shows a tendency to equalize temperature differences and therefore to pass from hotter to colder bodies": http://www.mdpi.org/lin/clausius/clausius.htm "Ueber die bewegende Kraft der Wärme", 1850, Rudolf Clausius: "Carnot assumed, as has already been mentioned, that the equivalent of the work done by heat is found in the mere transfer of heat from a hotter to a colder body, while the quantity of heat remains undiminished. The latter part of this assumption--namely, that the quantity of heat remains undiminished--contradicts our former principle, and must therefore be rejected... (...) It is this maximum of work which must be compared with the heat transferred. When this is done it appears that there is in fact ground for asserting, with Carnot, that it depends only on the quantity of the heat transferred and on the temperatures t and tau of the two bodies A and B, but not on the nature of the substance by means of which the work is done. (...) If we now suppose that there are two substances of which the one can produce more work than the other by the transfer of a given amount of heat, or, what comes to the same thing, needs to transfer less heat from A to B to produce a given quantity of work, we may use these two substances alternately by producing work with one of them in the above process. At the end of the operations both bodies are in their original condition; further, the work produced will have exactly counterbalanced the work done, and therefore, by our former principle, the quantity of heat can have neither increased nor diminished. The only change will occur in the distribution of the heat, since more heat will be transferred from B to A than from A to B, and so on the whole heat will be transferred from B to A. By repeating these two processes alternately it would be possible, without any expenditure of force or any other change, to transfer as much heat as we please from a cold to a hot body, and this is not in accord with the other relations of heat, since it always shows a tendency to equalize temperature differences and therefore to pass from hotter to colder bodies." Was there anything wrong with Clausius' argument? A couple of decades earlier Sadi Carnot had deduced, VALIDLY, the SAME conclusion from a FALSE assumption. So we have: Carnot: false assumption, valid argument - the second law Clausius: true assumption, (in)valid? argument - the second law Let us consider a few scenarios. First, a dissident discovers and even proves that Clausius' argument is invalid, and informs the scientific community. What would change? Nothing. Second, a mainstreamer discovers and even proves that Clausius' argument is invalid, and informs the scientific community. What would change? Nothing. Third, a large group of mainstreamers discovers and even proves that Clausius' argument is invalid, and informs the scientific community. What would change? Nothing. Fourth, the scientific community somehow gets convinced that Clausius' argument is invalid. What would change? Nothing. Dead science is dead science. Pentcho Valev |
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THE END OF SCIENCE
The ever growing corpse of thermodynamics:
http://www.phys.uu.nl/~wwwgrnsl/jos/.../AgingTime.pdf Jos Uffink 2010: "Another main theme in discussions on the arrow of time is irreversibility. A process is called irreversible if it cannot be fully undone. Once it has taken place, the original state cannot be completely restored, even with the help of the most sophisticated auxiliary apparatus imaginable. Examples of such processes are erosion, corruption, decay, and of course, aging. Planck famously argued that all processes in the real world are irreversible. He also claimed that this was a consequence of the Second Law of Thermodynamics. It is not a trivial matter to state what the Second Law of Thermodynamics actually says (cf. Uffink, 2001). There are, as Bridgman (1961) conservatively estimated, as many formulations as there have been discussions of it! A relatively safe formulation is the statement that according to thermodynamics, all systems in an equilibrium state are characterized by a quantity called entropy, and that in all transitions that a system can go through during adiabatic isolation, ending in another equilibrium state, this quantity can never decrease. However, the confusion surrounding the Second Law of Thermodynamics is not confined to classical thermodynamics, the theory developed by Clausius, Kelvin, Gibbs, and Planck. During the twentieth century, many modifications of the theory have been proposed, in order to make it applicable to more general types of systems and situations. This has resulted in a plethora of theories, calling themselves "generalized" thermodynamics, "extended" or "rational" thermodynamics, thermodynamics of irreversible processes, nonequilibrium thermodynamics, continuum thermodynamics, etc. On some occasions, the same name is even claimed by rather different theories." Pentcho Valev |
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THE END OF SCIENCE
http://www.timeshighereducation.co.u...orycode=413636
The End of Discovery: Are We Approaching the Boundaries of the Knowable? Simon Mitton: "In his inaugural lecture at Cambridge in 1980, the recently elected Lucasian professor of mathematics, Stephen Hawking, posed the question: "Is the end in sight for theoretical physics?" Outstanding physicists have fretted over this issue for more than a century. The claim that Lord Kelvin warned of the imminent death of physics at the British Association meeting in 1900 is much quoted even today, despite its being apocryphal. Many physicists and science writers have contributed to a voluminous literature on the future of physics. Russell Stannard, a former head of physics at The Open University, has added to the corpus. As a former high-energy physicist and an accomplished author of books on relativity aimed at children, he is well placed to write a non-technical account of the present state and uncertain future of theoretical physics. The continuing dilemma in the academy can be stated succinctly. An intractable puzzle is embedded in general relativity and quantum mechanics, the two revolutionary (and highly productive) ideas of the 20th century. The conundrum arises because relativity is a classical theory that is our best description of the Universe, whereas quantum theory applies in the subatomic world. As Stannard points out, both theories have withstood every test in their respected domains, and yet they are mutually incompatible." Tests general relativity has "withstood": http://www.newscientist.com/article/...to-albert.html New Scientist: Ode to Albert "Enter another piece of luck for Einstein. We now know that the light- bending effect was actually too small for Eddington to have discerned at that time. Had Eddington not been so receptive to Einstein's theory, he might not have reached such strong conclusions so soon, and the world would have had to wait for more accurate eclipse measurements to confirm general relativity." http://www.amazon.com/Brief-History-.../dp/0553380168 Stephen Hawking: "Einsteins prediction of light deflection could not be tested immediately in 1915, because the First World War was in progress, and it was not until 1919 that a British expedition, observing an eclipse from West Africa, showed that light was indeed deflected by the sun, just as predicted by the theory. This proof of a German theory by British scientists was hailed as a great act of reconciliation between the two countries after the war. It is ionic, therefore, that later examination of the photographs taken on that expedition showed the errors were as great as the effect they were trying to measure. Their measurement had been sheer luck, or a case of knowing the result they wanted to get, not an uncommon occurrence in science." http://discovermagazine.com/2008/mar...out-relativity "The eclipse experiment finally happened in 1919 (youre looking at it on this very page). Eminent British physicist Arthur Eddington declared general relativity a success, catapulting Einstein into fame and onto coffee mugs. In retrospect, it seems that Eddington fudged the results, throwing out photos that showed the wrong outcome. No wonder nobody noticed: At the time of Einsteins death in 1955, scientists still had almost no evidence of general relativity in action." http://www.cieletespace.fr/evenement...taient-fausses Jean-Marc Bonnet-Bidaud: "L'expédition britannique envoie deux équipes indépendantes sur le trajet de l'éclipse : l'une dirigée par Andrew Crommelin dans la ville de Sobral, dans le nord du Brésil, l'autre conduite par Eddington lui-même sur l'île de Principe, en face de Libreville, au Gabon. Le matériel embarqué est des plus sommaires au regard des moyens actuels : une lunette astronomique de seulement 20 cm de diamètre en chaque lieu, avec un instrument de secours de 10 cm à Sobral. Pour éviter l'emploi d'une monture mécanique trop lourde à transporter, la lumière est dirigée vers les lunettes par de simples miroirs mobiles, ce qui se révélera être une bien mauvaise idée. La stratégie est assez complexe. Il s'agit d'exposer des plaques photographiques durant l'éclipse pour enregistrer la position d'un maximum d'étoiles autour du Soleil, puis de comparer avec des plaques témoins de la même région du ciel obtenues de nuit, quelques mois plus tard. La différence des positions entre les deux séries de plaques, avec et sans le Soleil, serait la preuve de l'effet de la relativité et le résultat est bien sûr connu à l'avance. Problème non négligeable : la différence attendue est minuscule. Au maximum, au bord même du Soleil, l'écart prévu est seulement de un demi dix- millième de degré, soit très précisément 1,75 seconde d'arc (1,75"), correspondant à l'écart entre les deux bords d'une pièce de monnaie observée à 3 km de distance ! Or, quantités d'effets parasites peuvent contaminer les mesures, la qualité de l'émulsion photographique, les variations dans l'atmosphère terrestre, la dilatation des miroirs... Le jour J, l'équipe brésilienne voit le ciel se dégager au dernier moment mais Eddington n'aperçoit l'éclipse qu'à travers les nuages ! Sa quête est très maigre, tout juste deux plaques sur lesquelles on distingue à peine cinq étoiles. Pressé de rentrer en Angleterre, Eddington ne prend même pas la précaution d'attendre les plaques témoins. Les choses vont beaucoup mieux à Sobral : 19 plaques avec plus d'une dizaine d'étoiles et huit plaques prises avec la lunette de secours. L'équipe reste sur place deux mois pour réaliser les fameuses plaques témoins et, le 25 août, tout le monde est en Angleterre. Eddington se lance dans des calculs qu'il est le seul à contrôler, décidant de corriger ses propres mesures avec des plaques obtenues avec un autre instrument, dans une autre région du ciel, autour d'Arcturus. Il conclut finalement à une déviation comprise entre 1,31" et 1,91" : le triomphe d'Einstein est assuré ! Très peu sûr de sa méthode, Eddington attend anxieusement les résultats de l'autre expédition qui arrivent en octobre, comme une douche froide : suivant une méthode d'analyse rigoureuse, l'instrument principal de Sobral a mesuré une déviation de seulement 0,93". La catastrophe est en vue. S'ensuivent de longues tractations entre Eddington et Dyson, directeurs respectifs des observatoires de Cambridge et de Greenwich. On repêche alors les données de la lunette de secours de Sobral, qui a le bon goût de produire comme résultat un confortable 1,98", et le tour de passe-passe est joué. Dans la publication historique de la Royal Society, on lit comme justification une simple note : "Il reste les plaques astrographiques de Sobral qui donnent une déviation de 0,93", discordantes par une quantité au-delà des limites des erreurs accidentelles. Pour les raisons déjà longuement exposées, peu de poids est accordé à cette détermination." Plus loin, apparaît la conclusion catégorique: "Les résultats de Sobral et Principe laissent peu de doute qu'une déviation de la lumière existe au voisinage du Soleil et qu'elle est d'une amplitude exigée par la théorie de la relativité généralisée d'Einstein." Les données gênantes ont donc tout simplement été escamotées." http://alasource.blogs.nouvelobs.com...-deuxieme.html "D'abord il [Einstein] fait une hypothèse fausse (facile à dire aujourd'hui !) dans son équation de départ qui décrit les relations étroites entre géométrie de l'espace et contenu de matière de cet espace. Avec cette hypothèse il tente de calculer l'avance du périhélie de Mercure. Cette petite anomalie (à l'époque) du mouvement de la planète était un mystère. Einstein et Besso aboutissent finalement sur un nombre aberrant et s'aperçoivent qu'en fait le résultat est cent fois trop grand à cause d'une erreur dans la masse du soleil... Mais, même corrigé, le résultat reste loin des observations. Pourtant le physicien ne rejeta pas son idée. "Nous voyons là que si les critères de Popper étaient toujours respectés, la théorie aurait dû être abandonnée", constate, ironique, Etienne Klein. Un coup de main d'un autre ami, Grossmann, sortira Einstein de la difficulté et sa nouvelle équation s'avéra bonne. En quelques jours, il trouve la bonne réponse pour l'avance du périhélie de Mercure..." http://www.cieletespace.fr/evenement...taient-fausses Jean-Marc Bonnet-Bidaud: "L'épilogue du dernier test de la relativité, celui de l'orbite de Mercure, est encore plus passionnant. Ce fut en réalité un test a posteriori de la théorie, puisque la prédiction a fait suite à l'observation et ne l'a pas précédée. L'accord est stupéfiant. Le décalage observé dans la position de Mercure est de 43,11" par siècle, tandis que la prédiction de la relativité est de 42,98" par siècle ! Cette révision de l'horloge cosmique est toujours considérée comme le grand succès d'Einstein, mais elle est encore sous l'épée de Damoclès. En effet, des scientifiques soupçonnent que le Soleil pourrait ne pas être rigoureusement sphérique et un "aplatissement" réel introduirait une correction supplémentaire. La précision actuelle deviendrait alors le talon d'Achille compromettant le bel accord de la théorie." http://adsabs.harvard.edu/abs/2010AAS...21530404H Open Questions Regarding the 1925 Measurement of the Gravitational Redshift of Sirius B Jay B. Holberg Univ. of Arizona. "In January 1924 Arthur Eddington wrote to Walter S. Adams at the Mt. Wilson Observatory suggesting a measurement of the "Einstein shift" in Sirius B and providing an estimate of its magnitude. Adams' 1925 published results agreed remarkably well with Eddington's estimate. Initially this achievement was hailed as the third empirical test of General Relativity (after Mercury's anomalous perihelion advance and the 1919 measurement of the deflection of starlight). IT HAS BEEN KNOWN FOR SOME TIME THAT BOTH EDDINGTON'S ESTIMATE AND ADAMS' MEASUREMENT UNDERESTIMATED THE TRUE SIRIUS B GRAVITATIONAL REDSHIFT BY A FACTOR OF FOUR." http://www.cieletespace.fr/evenement...taient-fausses Jean-Marc Bonnet Bidaud: "Autour de l'étoile brillante Sirius, on découvre une petite étoile, Sirius B, à la fois très chaude et très faiblement lumineuse. Pour expliquer ces deux particularités, il faut supposer que l'étoile est aussi massive que le Soleil et aussi petite qu'une planète comme la Terre. C'est Eddington lui-même qui aboutit à cette conclusion dont il voit vite l'intérêt : avec de telles caractéristiques, ces naines blanches sont extrêmement denses et leur gravité très puissante. Le décalage vers le rouge de la gravitation est donc 100 fois plus élevé que sur le Soleil. Une occasion inespérée pour mesurer enfin quelque chose d'appréciable. Eddington s'adresse aussitôt à Walter Adams, directeur de l'observatoire du mont Wilson, en Californie, afin que le télescope de 2,5 m de diamètre Hooker entreprenne les vérifications. Selon ses estimations, basées sur une température de 8 000 degrés de Sirius B, mesurée par Adams lui-même, le décalage vers le rouge prédit par la relativité, en s'élevant à 20 km/s, devrait être facilement mesurable. Adams mobilise d'urgence le grand télescope et expose 28 plaques photographiques pour réaliser la mesure. Son rapport, publié le 18 mai 1925, est très confus car il mesure des vitesses allant de 2 à 33 km/s. Mais, par le jeu de corrections arbitraires dont personne ne comprendra jamais la logique, le décalage passe finalement à 21 km/s, plus tard corrigé à 19 km/s, et Eddington de conclure : "Les résultats peuvent être considérés comme fournissant une preuve directe de la validité du troisième test de la théorie de la relativité générale." Adams et Eddington se congratulent, ils viennent encore de "prouver" Einstein. Ce résultat, pourtant faux, ne sera pas remis en cause avant 1971. Manque de chance effectivement, la première mesure de température de Sirius B était largement inexacte : au lieu des 8 000 degrés envisagés par Eddington, l'étoile fait en réalité près de 30 000 degrés. Elle est donc beaucoup plus petite, sa gravité est plus intense et le décalage vers le rouge mesurable est de 89 km/s. C'est ce qu'aurait dû trouver Adams sur ses plaques s'il n'avait pas été "influencé" par le calcul erroné d'Eddington. L'écart est tellement flagrant que la suspicion de fraude a bien été envisagée." Pentcho Valev |
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THE END OF SCIENCE
On Jul 3, 1:41*am, Pentcho Valev wrote:
http://arc-tv.com/the-crisis-in-physics-and-its-cause/ "However, for the past century, theoretical physicists have been sending a different message. They have rejected causality in favor of chance, logic in favor of contradictions, and reality in favor of fantasy. The science of physics is now riddled with claims that are as absurd as those of any religious cult." http://school.maths.uwa.edu.au/~mike/Trouble.doc Mike Alder: "It is easy to see the consequences of the takeover by the bureaucrats. Bureaucrats favour uniformity, it simplifies their lives. They want rules to follow. They prefer the dead to the living. They have taken over religions, the universities and now they are taking over Science. And they are killing it in the process. The forms and rituals remain, but the spirit is dead. The cold frozen corpse is so much more appealing to the bureaucratic mind-set than the living spirit of the quest for insight. Bureaucracies put a premium on the old being in charge, which puts a stop to innovation. Something perhaps will remain, but it will no longer attract the best minds. This, essentially, is the Smolin position. He gives details and examples of the death of Physics, although he, being American, is optimistic that it can be reversed. I am not. (...) Developing ideas and applying them is done by a certain kind of temperament in a certain kind of setting, one where there is a good deal of personal freedom and a willingness to take risks. No doubt we still have the people. But the setting is gone and will not come back. Science is a product of the renaissance and an entrepreneurial spirit. It will not survive the triumph of bureacracy. Despite having the infrastructure, China never developed Science. And soon the West won't have it either." http://www.wickedlocal.com/pembroke/...ooks/x16163192... Hilton Ratcliffe: "Physics is dying, being suffocated by meta- mathematics, and physics departments at major universities with grand histories in physical science are closing down for lack of interest. It is a crisis in my view. (...) If, as in the case of GTR and later with Big Bang Theory and Black Hole theory, the protagonists have seductive charisma (which Einstein, Gamow, and Hawking, respectively, had in abundance) then the theory, though not the least bit understood, becomes the darling of the media. GTR and Big Bang Theory are sacrosanct, and it's most certainly not because they make any sense. In fact, they have become the measure by which we sanctify nonsense." http://www.guardian.co.uk/science/20.../22/schools.g2 "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?" http://www.nature.com/nature/journal...l/433218a.html John Barrow: "EINSTEIN RESTORED FAITH IN THE UNINTELLIGIBILITY OF SCIENCE. Everyone knew that Einstein had done something important in 1905 (and again in 1915) but almost nobody could tell you exactly what it was. When Einstein was interviewed for a Dutch newspaper in 1921, he attributed his mass appeal to the mystery of his work for the ordinary person: "Does it make a silly impression on me, here and yonder, about my theories of which they cannot understand a word? I think it is funny and also interesting to observe. I am sure that it is the mystery of non-understanding that appeals to themit impresses them, it has the colour and the appeal of the mysterious." Relativity was a fashionable notion. It promised to sweep away old absolutist notions and refurbish science with modern ideas. In art and literature too, revolutionary changes were doing away with old conventions and standards. ALL THINGS WERE BEING MADE NEW. EINSTEIN'S RELATIVITY SUITED THE MOOD. Nobody got very excited about Einstein's brownian motion or his photoelectric effect but RELATIVITY PROMISED TO TURN THE WORLD INSIDE OUT." http://io9.com/5607692/are-physicist...up-dark-energy Dave Goldberg, Associate Professor of Physics at Drexel University: "The idea of dark energy is so ridiculous that almost every question is based on trying to make it go away. And believe me, I share your concerns. I don't want to believe in dark energy, but I have no choice. (...) Basically, if you want to get rid of dark energy, you have to get rid of relativity." http://www.nytimes.com/2010/01/26/science/26essay.html "The worrying continued. Lawrence Krauss, a cosmologist from Arizona State, said that most theories were wrong. "We get the notions they are right because we keep talking about them," he said. Not only are most theories wrong, he said, but most data are also wrong..." But, the difference between the modern theory of DNA and Aristotle's theory of DNA, is that Arisotle's theory was infinitely wrong. The difference between the modern theory of radioactivity and Galileo's theory, is that Galileo's is ramp scewed by the media. And the difference between modern computers, and Newton's computers, is that modern computers are not only digital, they have 1000 GHz more laser bandwith that Newton's did. http://www.smithsonianmag.com/scienc.../87150187.html "Dark Energy: The Biggest Mystery in the Universe (...) "We have a complete inventory of the universe," Sean Carroll, a California Institute of Technology cosmologist, has said, "and it makes no sense." http://www.dogma.lu/txt/EK-ScienceQuiestion.htm Etienne Klein: "Votre science dit-elle réellement le vrai ? Comment osez-vous prétendre qu'elle se réfère à la rationalité alors que les jugements esthétiques, les préjugés métaphysiques et autres désirs subjectifs imprégnent sinon sa démarche tout entière, du moins certaines de ses phases ? Votre légitimité incontestée est-elle fondée sur autre chose que des effets de pouvoir ? Les mythes, que vous méprisez, ne disent-ils pas eux aussi une part de la vérité ? Le relativisme bénéficie, sous toutes ses formes, d'une sympathie intellectuelle quasi-spontanée. Pourquoi séduit-il tant ceux qui s'interrogent sur la portée des discours de la science ? Sans doute parce que, abusivement interprété comme une remise en cause des prétentions de cette dernière, il semble nourrir un soupçon qui se généralise, celui de l'imposture : « Finalement, (là comme ailleurs) tout est relatif. » (...) Comment inciter ceux qui ne connaissent pas la science à vouloir la connaître ? Comment convertir le droit de savoir, légitime mais gratuit en termes d'effort, en désir de connaître, qui, lui, demande un engagement chronophage et un véritable travail personnel ? Et comment inciter les moins intéressés d'entre nous à se tourner vers les scientifiques pour les questionner : " Que faites-vous au juste ? Que savez-vous exactement ? En quoi ce que vous proposez est-il pertinent pour nous ? " Réciproquement, comment obliger les experts à ne plus s'en tenir à leurs seules propres raisons et à écouter celles des autres ?" http://www.i-sem.net/press/jmll_isem_palermo.pdf Jean-Marc Lévy-Leblond: "La science souffre d'une forte perte de crédit, au sens propre comme au sens figuré : son soutien politique et économique, comme sa réputation intellectuelle et culturelle connaissent une crise grave. (...) Mais le plus grave peut-être dans la déculturation de la science se situe à l'extérieur de la recherche scientifique, à l'interface entre le milieu scientifique proprement dit et la société au sens large." http://www.archipope.net/article-12278372-6.html "Nous nous trouvons dans une période de mutation extrêmement profonde.. Nous sommes en effet à la fin de la science telle que l'Occident l'a connue », tel est constat actuel que dresse Jean-Marc Lévy-Leblond, physicien théoricien, épistémologue et directeur des collections scientifiques des Editions du Seuil." http://archives.lesechos.fr/archives...077-80-ECH.htm "Physicien au CEA, professeur et auteur, Etienne Klein s'inquiète des relations de plus en plus conflictuelles entre la science et la société. (...) « Je me demande si nous aurons encore des physiciens dans trente ou quarante ans », remarque ce touche-à-tout aux multiples centres d'intérêt : la constitution de la matière, le temps, les relations entre science et philosophie. (...) Etienne Klein n'est pas optimiste. Selon lui, il se pourrait bien que l'idée de progrès soit tout bonnement « en train de mourir sous nos yeux »." http://www.inra.fr/dpenv/pdf/LevyLeblondC56.pdf Jean-Marc Lévy-Leblond: "Il est peut-être trop tard. Rien ne prouve, je le dis avec quelque gravité, que nous soyons capables d'opérer aujourd'hui ces nécessaires mutations. L'histoire, précisément, nous montre que, dans l'histoire des civilisations, les grands épisodes scientifiques sont terminés... (...) Rien ne garantit donc que dans les siècles à venir, notre civilisation, désormais mondiale, continue à garder à la science en tant que telle la place qu'elle a eue pendant quelques siècles." EXISTENTIAL QUESTION: Would science have survived if Einstein had not "resisted the temptation to account for the null result in terms of particles of light and simple, familiar Newtonian ideas, and introduced as his second postulate something that was more or less obvious when thought of in terms of waves in an ether"? http://www.amazon.com/Relativity-Its.../dp/0486406768 "Relativity and Its Roots" By Banesh Hoffmann "Moreover, if light consists of particles, as Einstein had suggested in his paper submitted just thirteen weeks before this one, the second principle seems absurd: A stone thrown from a speeding train can do far more read more »... |
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THE END OF SCIENCE
http://www.humanamente.eu/PDF/Issue13_Paper_Norton.pdf
John Norton: "It is common to dismiss the passage of time as illusory since its passage has not been captured within modern physical theories. I argue that this is a mistake. Other than the awkward fact that it does not appear in our physics, there is no indication that the passage of time is an illusion. (...) The passage of time is a real, objective fact that obtains in the world independently of us. How, you may wonder, could we think anything else? One possibility is that we might think that the passage of time is some sort of illusion, an artifact of the peculiar way that our brains interact with the world. Indeed that is just what you might think if you have spent a lot of time reading modern physics. 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 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." Imagine that John Norton had added, quite correctly, more information about "the work of Einstein, Minkowski and many more": "It is common to dismiss the passage of time as illusory since its passage has not been captured within modern physical theories. I argue that this is a mistake. Other than the awkward fact that it does not appear in our physics, there is no indication that the passage of time is an illusion. (...) The passage of time is a real, objective fact that obtains in the world independently of us. How, you may wonder, could we think anything else? One possibility is that we might think that the passage of time is some sort of illusion, an artifact of the peculiar way that our brains interact with the world. Indeed that is just what you might think if you have spent a lot of time reading modern physics. Following from the work of Einstein, Minkowski and many more BASED ON THE PRINCIPLE OF RELATIVITY AND THE PRINCIPLE OF CONSTANCY OF THE SPEED OF LIGHT, 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 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." The situation is elementary: an unacceptable consequence ("the passage of time is an illusion") has been deduced from two axioms so at least one of the axioms must be false. Would the scientific community start looking for the false axiom? It wouldn't. Of all the theoreticians all over the world not one could think of a reason why the false axiom should be looked for. Dead science is dead science. Pentcho Valev |
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THE END OF SCIENCE
Symptoms of dead science:
http://www.pitt.edu/~jdnorton/lectur.../Tsinghua.html John Norton: "The first is Einstein's famous "chasing a light beam" thought experiment that provided his first step towards the special theory of relativity. If read as presented, the thought experiment it obscure. It is unclear just how Einstein arrives at the various outcomes claimed. A small minority of later authors have admitted its unintelligibility. Most, however, do not. They pretend that they understand it, with the unfortunate consequence that hapless readers are left doubly baffled by their failure to follow Einstein's account and that of the commentator as well!" http://philsci-archive.pitt.edu/1743/2/Norton.pdf John Norton: "In addition to his work as editor of the Einstein papers in finding source material, Stachel assembled the many small clues that reveal Einstein's serious consideration of an emission theory of light; and he gave us the crucial insight that Einstein regarded the Michelson-Morley experiment as evidence for the principle of relativity, whereas later writers almost universally use it as support for the light postulate of special relativity. Even today, this point needs emphasis. The Michelson-Morley experiment is fully compatible with an emission theory of light that CONTRADICTS THE LIGHT POSTULATE." Lie and obscurity "almost universally" taught for a century and now... no reaction at all? Just John Norton making some money at Tsinghua University? Science couldn't be more dead. Pentcho Valev |
#17
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THE END OF SCIENCE
http://www.parabola.unsw.edu.au/vol3...ol35_no1_2.pdf
Parabola Volume 35, Issue 1 (1999) LENGTH AND RELATIVITY by John Steele "The Pole in the Barn Paradox. Now we know about length contraction, we can invent some amusing uses of it. Suppose you want to fit a 20m pole into a 10m barn. If the pole were moving fast enough, then length contraction means it would be short enough. (...) Now comes the paradox. According to your friend who is going to slam the barn doors shut just as the end of the pole goes in, the pole is 10m long, and therefore it fits. However as far as you are concerned, the pole is still 20m long but the barn is now only 5m long: length contraction must work both ways by the first postulate. How can you fit this 20m pole into a 5m barn? This paradox is apparently due to Wolfgang Rindler of the University of Texas at Dallas. Of course the key to this is relativity of simultaneity. Your friend sees the front end of the pole hit the back wall of the barn at the same time as the doors are closed, but you (and the pole) do not see things this way. You are standing still and see a 5m long barn coming towards you at some shockingly high speed. When the back of the barn hits the front of the pole (and takes the front of the pole with it), the back end of the pole must still be at rest. It cannot 'know' about the crash at the front, because the shock wave travelling along the pole “telling it” about the crash travels at some finite speed. The front of the barn has only 15m to go to get to the back of the pole, but the shock wave has to travel the whole length of the pole, namely 20m. The speed of the barn is such that even if this shock wave travelled at the speed of light, it would not get to the back of the pole before the front of the barn did. Hence in both frames of reference, the pole fits inside the barn (and will presumably shatter when the doors are closed)." Note that John Steele has no problem with the 20m pole remaining, eventually, trapped inside the 10m barn. And of all the scientists all over the world not one could think of a reason why there should be any problem with the dwindled pole. Science coldn't be more dead. Pentcho Valev |
#18
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THE END OF SCIENCE
Science may be dead but pseudoscience is not. As soon as some idiocy
compromises itself, another is born: http://www.pcmag.com/article2/0,2817,2392094,00.asp "New data from Europe's Large Hadron Collider may signal the end of one of the most popular theories in physics, superstring theory. If the conclusions are true, scientists would need a new leading candidate for the "theory of everything." (...) Experiments will continue, of course, but this could be the beginning of the end for superstring theory. There's no shortage of alternative grand theories for mixing quantum mechanics and relativity, however, and superstring theory's downfall could lead to many new theories being proposed." http://www.newscientist.com/article/...ase-space.html "But did Einstein's revolution go far enough? Physicist Lee Smolin at the Perimeter Institute for Theoretical Physics in Waterloo, Ontario, Canada, doesn't think so. He and a trio of colleagues are aiming to take relativity to a whole new level, and they have space-time in their sights. They say we need to forget about the home Einstein invented for us: we live instead in a place called phase space. (...) What they discovered is shocking: observers living in a curved momentum space will no longer agree on measurements made in a unified space-time. That goes entirely against the grain of Einstein's relativity. He had shown that while space and time were relative, space-time was the same for everyone. For observers in a curved momentum space, however, even space-time is relative. (...) According to Smolin, relative locality saves the day. Let's say you were patient enough to wait around while a black hole evaporated, a process that could take billions of years. Once it had vanished, you could ask what happened to, say, an elephant that once succumbed to its gravitational grip. But as you look back to the time at which you thought the elephant had fallen in, you would find that locations in space-time had grown so fuzzy and uncertain that there would be no way to tell whether the elephant actually fell into the black hole or narrowly missed it. The information-loss paradox dissolves. (...) Smolin and colleagues' model does not yet include gravity, but once it does, Majid says, observers will not agree on measurements in momentum space either. So if both space-time and momentum space are relative, where does objective reality lie? What is the true fabric of reality? Smolin's hunch is that we will find ourselves in a place where space- time and momentum space meet: an eight-dimensional phase space that represents all possible values of position, time, energy and momentum. In relativity, what one observer views as space, another views as time and vice versa, because ultimately they are two sides of a single coin - a unified space-time. Likewise, in Smolin's picture of quantum gravity, what one observer sees as space-time another sees as momentum space..." Pentcho Valev |
#19
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THE END OF SCIENCE
On Jul 9, 1:53*am, Pentcho Valev wrote:
Scientists somehow feel that the Augean task of removing Einstein's 1905 false constant-speed-of-light postulate and all its absurd consequences is unaccomplishable (Einstein: "Nothing will remain of my whole castle in the air, including the theory of gravitation, but also nothing of the rest of contemporary physics"; Wallace: "Shatter this postulate, and modern physics becomes an elaborate farce!"). In a sense scientists are right in claiming that the human brain is incapable of replacing the dead corpse of science with some "new physics": What saves science, is that many scientists still can't understand that Einstein was ranting about field theory, rather than space time, mass, light, logic, chemistry, or rockets. So the people with actual science ability are still working on 21st Century, rather than continuations of Maxwell. http://www.france-info.com/chronique...1-07-08-les-li... "Marc Lachièze-Rey est directeur de recherche au CNRS, au Laboratoire "Astroparticules et cosmologie" de l'Université Pars7-Denis Diderot : La physique d'aujourd'hui se fonde à la fois sur la physique quantique et sur la relativité générale, nous dit-il. Véritables systèmes de pensée, ces deux théories suggèrent deux manières différentes de voir le monde. Si notre physique ne convient pas, il faut en construire une nouvelle. Des hypothèses audacieuses sous-tendent de nouvelles théories : supersymétrie, cordes et supercordes, gravité et cosmologie quantiques, géométrie non commutative…, qui renouvellent les conceptions mêmes de l'espace et du temps, de la matière et de l'univers. Mais peut-être faut-il tout simplement admettre que nous ne disposons pas d'un cerveau suffisamment développé, capable d'accéder à une nouvelle physique ? Vous pourrez écouter Marc Lachièze-Rey en duo avec son collègue et ami, Etienne Klein dans le cadre des rencontres "Sciences et humanisme" au Lazaret Ollandini à Ajaccio qui se dérouleront du 19 au 23 Juillet 2011" Pentcho Valev |
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