Prev: UA thanks for heads up on AB962
Next: Albert Einstein's Theory of Relativity In Words of Four Letters or Less
From: Pentcho Valev on 23 Jun 2010 01:02 Confessions made in moments of aberration: http://www.perimeterinstitute.ca/pdf/files/975547d7-2d00-433a-b7e3-4a09145525ca.pdf Albert Einstein 1954: "I consider it entirely possible that physics cannot be based upon the field concept, that is on continuous structures. Then nothing will remain of my whole castle in the air, including the theory of gravitation, but also nothing of the rest of contemporary physics." http://articles.courant.com/2009-03-26/news/thorson0326.art_1_science-education-theory-of-general-relativity-arthur-eddington "Albert Einstein strengthened science through his contributions, but he may have inadvertently crippled science education through his example. This notion is supported by an editorial, "Redefining Science Education," published in January by Bruce Alberts, editor in chief of the journal Science. His main concern is that "many college-educated adults in the United States," including teachers, "fail to understand that science is a way of knowing completely different from mysticism, tradition and faith." Science is based on "evidence that can be logically and independently verified," rather than on personal authority. Most of the public accepted Einstein's 1915 theory of general relativity based on his authority, rather than on the evidence presented." http://plus.maths.org/issue37/features/Einstein/index.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." http://www.edge.org/q2008/q08_5.html John Baez: "On the one hand we have the Standard Model, which tries to explain all the forces except gravity, and takes quantum mechanics into account. On the other hand we have General Relativity, which tries to explain gravity, and does not take quantum mechanics into account. Both theories seem to be more or less on the right track but until we somehow fit them together, or completely discard one or both, our picture of the world will be deeply schizophrenic." 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..." http://www.smithsonianmag.com/science-nature/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.beilstein-institut.de/bozen2004/proceedings/CornishBowden/CornishBowden.pdf Athel Cornish-Bowden: "The concept of entropy was introduced to thermodynamics by Clausius, who deliberately chose an obscure term for it, wanting a word based on Greek roots that would sound similar to "energy". In this way he hoped to have a word that would mean the same to everyone regardless of their language, and, as Cooper [2] remarked, he succeeded in this way in finding a word that meant the same to everyone: NOTHING. From the beginning it proved a very difficult concept for other thermodynamicists, even including such accomplished mathematicians as Kelvin and Maxwell; Kelvin, indeed, despite his own major contributions to the subject, never appreciated the idea of entropy [3]. The difficulties that Clausius created have continued to the present day, with the result that a fundamental idea that is absolutely necessary for understanding the theory of chemical equilibria continues to give trouble, not only to students but also to scientists who need the concept for their work." 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)." Pentcho Valev pvalev(a)yahoo.com
From: Pentcho Valev on 25 Jun 2010 01:24 Genetics is based on Mendel's first and second laws. Thermodynamics is based on the first and second laws of thermodynamics. Relativity is based on Einstein's 1905 first and second postulates. Genetics is flourishing, thermodynamics and relativity are dying. Why? http://philsci-archive.pitt.edu/archive/00000313/ Jos Uffink: "The Second Law made its appearance in physics around 1850, but a half century later it was already surrounded by so much confusion that the British Association for the Advancement of Science decided to appoint a special committee with the task of providing clarity about the meaning of this law. However, its final report (Bryan 1891) did not settle the issue. Half a century later, the physicist/philosopher Bridgman still complained that there are almost as many formulations of the second law as there have been discussions of it (Bridgman 1941, p. 116). And even today, the Second Law remains so obscure that it continues to attract new efforts at clarification. A recent example is the work of Lieb and Yngvason (1999)......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' (1980, p. 6) and 'a prime example to show that physicists are not exempt from the madness of crowds' (ibid. p. 8).......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.....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." http://www.perimeterinstitute.ca/index.php?option=com_content&task=view&id=317&Itemid=81&lecture_id=3576 John Stachel: "Einstein discussed the other side of the particle-field dualism - get rid of fields and just have particles." EINSTEIN'S 1954 CONFESSION: "I consider it entirely possible that physics cannot be based upon the field concept, that is on continuous structures. Then nothing will remain of my whole castle in the air, including the theory of gravitation, but also nothing of the rest of contemporary physics." John Stachel's comment: "If I go down, everything goes down, ha ha, hm, ha ha ha." http://www.pbs.org/wgbh/nova/einstein/genius/ "Genius Among Geniuses" by Thomas Levenson A clue to EINSTEIN'S 1954 CONFESSION: "And then, in June, Einstein completes special relativity, which adds a twist to the story: Einstein's March paper treated light as particles, but special relativity sees light as a continuous field of waves. Alice's Red Queen can accept many impossible things before breakfast, but it takes a supremely confident mind to do so. Einstein, age 26, sees light as wave and particle, picking the attribute he needs to confront each problem in turn. Now that's tough." http://books.google.com/books?id=JokgnS1JtmMC "Relativity and Its Roots" By Banesh Hoffmann Another clue to EINSTEIN'S 1954 CONFESSION: "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 damage than one thrown from a train at rest; the speed of the particle is not independent of the motion of the object emitting it. And if we take light to consist of particles and assume that these particles obey Newton's laws, they will conform to Newtonian relativity and thus automatically account for the null result of the Michelson-Morley experiment without recourse to contracting lengths, local time, or Lorentz transformations. Yet, as we have seen, Einstein 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." Pentcho Valev pvalev(a)yahoo.com
From: Pentcho Valev on 25 Jun 2010 10:37 PHYSICS EDUCATION: CRISIS OR DEATH? http://www.guardian.co.uk/science/2005/nov/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.lewrockwell.com/orig6/ingdahl2.html "But there has been a marked global decrease of students willing to study physics, and funding has decreased accordingly. Not only that, the best students are not heading for studies in physics, finding other fields more appealing, and science teachers to schools are getting scarcer in supply. In fact, warning voices are being heard about the spread of a "scientific illiteracy" where many living in technologically advanced societies lack the knowledge and the ability for critical thinking in order to function in their daily environment." 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://archives.lesechos.fr/archives/2004/LesEchos/19077-80-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 ». (...) Cette perception d'une « science mortifère » se double d'une « culture du ressenti », sorte de sésame passe-partout utilisé pour justifier l'acquisition, l'évaluation ou le rejet des connaissances. « J'ai eu à faire récemment à un jeune étudiant en sciences qui n'était pas d'accord avec la théorie de la relativité d'Einstein pour une raison étonnante : il m'a dit qu'il ne la sentait pas », indique-t-il en riant à moitié. Au bout du compte, ce soupçon d'imposture permanente débouche sur une idée simple qui fait des ravages : « En sciences comme ailleurs, tout est relatif. » Dans ce contexte, la vulgarisation est d'un maigre secours car « la pédagogie ajoute du bruit et augmente la confusion »." http://mneaquitaine.wordpress.com/2008/11/26/loccident-face-a-la-crise-des-vocations-scientifiques/ "L'Occident face à la crise des vocations scientifiques. Le mal s'accroît, mais le diagnostic s'affine. Les pays développés, qui souffrent, sans exception, d'une désaffection des jeunes pour les filières scientifiques, pointent du doigt la façon dont les sciences sont aujourd'hui enseignées. Trop de théorie, pas assez de pratique ; des enseignements qui n'invitent pas au questionnement... (...) ...les sciences physiques, grandes victimes de ce rejet collectif des jeunes Européens, dégringolent (- 5,5 %)." http://www.buckingham.ac.uk/news/newsarchive2006/ceer-physics-2.html "PHYSICS IN TERMINAL DECLINE? In CEER's latest report, published 11 August 2006 and funded by the Gatsby Charitable Foundation, Professor Alan Smithers and Dr Pamela Robinson show that the decline in physics as student numbers fall and university departments shut is more serious than is generally appreciated." http://www.wellingtongrey.net/articles/archive/2007-06-07--open-letter-aqa.html "I am a physics teacher. Or, at least I used to be. My subject is still called physics. My pupils will sit an exam and earn a GCSE in physics, but that exam doesn't cover anything I recognize as physics. Over the past year the UK Department for Education and the AQA board changed the subject. They took the physics out of physics and replaced it with... something else, something nebulous and ill defined. I worry about this change. I worry about my pupils, I worry about the state of science education in this country, and I worry about the future physics teachers - if there will be any. (...) UPDATE 2009: After much frustration I'm leaving teaching England in physics. I've started a side business in time management and am taking a break from the profession." Pentcho Valev pvalev(a)yahoo.com
From: Pentcho Valev on 27 Jun 2010 07:32
Karl Popper used to teach that theories can be refuted by a single experiment. Einsteinians agree with Popper but, on the other hand, they have discovered that experiments confirming Newton's emission theory of light, a theory which contradicts Einstein's 1905 light postulate by stating that the speed of light is VARIABLE, gloriously confirm Divine Albert's Divine Theory: http://groups.google.com/group/sci.physics.relativity/msg/44abc7dbb30db6c2 John Norton (a famour Einsteinian): "THE MICHELSON-MORLEY EXPERIMENT IS FULLY COMPATIBLE WITH AN EMISSION THEORY OF LIGHT THAT CONTRADICTS THE LIGHT POSTULATE." Tom Roberts (a famous Einsteinian): "Sure. The fact that this one experiment is compatible with other theories does not refute relativity in any way. The full experimental record refutes most if not all emission theories, but not relativity." Pentcho Valev: "THE POUND-REBKA EXPERIMENT IS FULLY COMPATIBLE WITH AN EMISSION THEORY OF LIGHT THAT CONTRADICTS THE LIGHT POSTULATE." Tom Roberts: "Sure. But this experiment, too, does not refute relativity. The full experimental record refutes most if not all emission theories, but not relativity." Also, Einsteinians find it tedious to constantly repeat that experiments confirm both Newton's emission theory of light and Divine Albert's Divine Theory. So they omit Newton's emission theory of light and constantly repeat that experiments gloriously confirm Divine Albert's Divine Theory: http://philsci-archive.pitt.edu/archive/00001743/02/Norton.pdf John Norton: "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......The Michelson-Morley experiment is fully compatible with an emission theory of light that contradicts the light postulate." http://www.amazon.com/Faster-Than-Speed-Light-Speculation/dp/0738205257 Joao Magueijo: "I am by profession a theoretical physicist. By every definition I am a fully credentialed scholar-graduate work and Ph.D. at Cambridge, followed by a very prestigious research fellowship at St. John's College, Cambridge (Paul Dirac and Abdus Salam formerly held this fellowship), then a Royal Society research fellow. Now I'm a lecturer (the equivalent of a tenured professor in the United States) at Imperial College. (...) A missile fired from a plane moves faster than one fired from the ground because the plane's speed adds to the missile's speed. If I throw something forward on a moving train, its speed with respect to the platform is the speed of that object plus that of the train. You might think that the same should happen to light: Light flashed from a train should travel faster. However, what the Michelson-Morley experiments showed was that this was not the case: Light always moves stubbornly at the same speed. This means that if I take a light ray and ask several observers moving with respect to each other to measure the speed of this light ray, they will all agree on the same apparent speed!" http://www.hawking.org.uk/index.php?option=com_content&view=article&id=64&Itemid=66 Stephen Hawking: "Interestingly enough, Laplace himself wrote a paper in 1799 on how some stars could have a gravitational field so strong that light could not escape, but would be dragged back onto the star. He even calculated that a star of the same density as the Sun, but two hundred and fifty times the size, would have this property. But although Laplace may not have realised it, the same idea had been put forward 16 years earlier by a Cambridge man, John Mitchell, in a paper in the Philosophical Transactions of the Royal Society. Both Mitchell and Laplace thought of light as consisting of particles, rather like cannon balls, that could be slowed down by gravity, and made to fall back on the star. But a famous experiment, carried out by two Americans, Michelson and Morley in 1887, showed that light always travelled at a speed of one hundred and eighty six thousand miles a second, no matter where it came from. How then could gravity slow down light, and make it fall back." http://www.washingtonpost.com/wp-dyn/content/article/2010/04/21/AR2010042105274.html "Robert Pound, 90, confirmed a key Einstein theory, dies (...) "People had presumed that Einstein was probably right" about the frequency shift, but it was extremely small and hard to measure, said Paul Horowitz, a Harvard professor of physics and electrical engineering. Yet, Horowitz said, Mr. Pound found a way to do it." http://focus.aps.org/story/v16/st1 "Before he worked out the general theory of relativity, Einstein had already deduced that gravity must affect a light wave's frequency and wavelength. Light moving upwards from Earth's surface, for example, shifts to longer wavelength and lower frequency, as gravity saps it of some energy. But the effect is tiny in earth's modest gravity. In 1960 Robert Pound and Glen Rebka of Harvard University finally succeed in testing this crucial prediction, and they reported their results in PRL. Today the so-called gravitational redshift is essential for understanding the cosmos and operating the Global Positioning System (GPS)." http://archive.ncsa.illinois.edu/Cyberia/NumRel/EinsteinTest.html "In 1960, Robert V. Pound and Glen A. Rebka demonstrated that a beam of very high energy gamma rays was ever so slightly redshifted as it climbed out of Earth's gravity and up an elevator shaft in the Jefferson Tower physics building at Harvard University. The redshift predicted by Einstein's Field Equations for the 74 ft. tall tower was but two parts in a thousand trillion. The gravitational redshift detected came within ten percent of the computed value. Quite a feat!" Pentcho Valev pvalev(a)yahoo.com |