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In the absence of length contraction (one assumes that length
contraction is absurd) the Michelson-Morley experiment UNEQUIVOCALLY refutes Einstein's 1905 constant-speed-of-light postulate (c'=c) and confirms the antithesis, the equation c'=c+v given by Newton's emission theory of light. Is length contraction absurd? The following references give a straightforward answer to this question: http://math.ucr.edu/home/baez/physic...barn_pole.html "These are the props. You own a barn, 40m long, with automatic doors at either end, that can be opened and closed simultaneously by a switch. You also have a pole, 80m long, which of course won't fit in the barn. Now someone takes the pole and tries to run (at nearly the speed of light) through the barn with the pole horizontal. Special Relativity (SR) says that a moving object is contracted in the direction of motion: this is called the Lorentz Contraction. So, if the pole is set in motion lengthwise, then it will contract in the reference frame of a stationary observer.....So, as the pole passes through the barn, there is an instant when it is completely within the barn. At that instant, you close both doors simultaneously, with your switch. Of course, you open them again pretty quickly, but at least momentarily you had the contracted pole shut up in your barn. The runner emerges from the far door unscathed.....If the doors are kept shut the rod will obviously smash into the barn door at one end. If the door withstands this the leading end of the rod will come to rest in the frame of reference of the stationary observer. There can be no such thing as a rigid rod in relativity so the trailing end will not stop immediately and the rod will be compressed beyond the amount it was Lorentz contracted. If it does not explode under the strain and it is sufficiently elastic it will come to rest and start to spring back to its natural shape but since it is too big for the barn the other end is now going to crash into the back door and the rod will be trapped IN A COMPRESSED STATE inside the barn." http://www.quebecscience.qc.ca/Revolutions Stéphane Durand: "Pour mieux comprendre le phénomène de ralentissement du temps, il est préférable d'aborder un autre phénomène tout aussi paradoxal: la contraction des longueurs. Car la vitesse affecte non seulement l'écoulement du temps, mais aussi la longueur des objets. Ainsi, une fusée en mouvement apparaît plus courte que lorsqu'elle est au repos. Là aussi, plus la vitesse est grande, plus la contraction est importante. Et, comme pour le temps, les effets ne deviennent considérables qu'à des vitesses proches de celle de la lumière. Dans la vie de tous les jours, cette contraction est imperceptible. Cependant, si une fusée de 100 m passait devant nous à une vitesse proche de celle de la lumière, elle pourrait sembler ne mesurer que 50 m, ou même moins. Bien sûr, la question qui vient tout de suite à l'esprit est: «Cette contraction n'est-elle qu'une illusion?» Il semble tout à fait incroyable que le simple mouvement puisse comprimer un objet aussi rigide qu'une fusée. Et pourtant, la contraction est réelle... mais SANS COMPRESSION physique de l'objet! Ainsi, une fusée de 100 m passant à toute vitesse dans un tunnel de 60 m pourrait être entièrement contenue dans ce tunnel pendant une fraction de seconde, durant laquelle il serait possible de fermer des portes aux deux bouts! La fusée est donc réellement plus courte. Pourtant, il n'y a PAS DE COMPRESSION matérielle ou physique de l'engin." http://hyperphysics.phy-astr.gsu.edu.../bugrivet.html "The bug-rivet paradox is a variation on the twin paradox and is similar to the pole-barn paradox.....The end of the rivet hits the bottom of the hole before the head of the rivet hits the wall. So it looks like the bug is squashed.....All this is nonsense from the bug's point of view. The rivet head hits the wall when the rivet end is just 0.35 cm down in the hole! The rivet doesn't get close to the bug....The paradox is not resolved." Pentcho Valev |
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"Pentcho Valev" wrote in message
+--- "Impotent Blithering Non-entity."---+ |
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If the wavelength of light does not vary with the gravitational
potential (one assumes that the variation is absurd), then the Pound- Rebka experiment UNEQUIVOCALLY refutes Einstein's relativity and confirms Newton's emission theory of light. Is a wavelength varying with the gravitational potential absurd? If the wavelength does vary with the gravitational potential, then, in the absence of a gravitational field, it varies with the speed of the observer (that is, if the latter variation is absurd, the former is absurd too): http://www.pitt.edu/~jdnorton/teachi...ang/index.html John Norton: "Here's a light wave and an observer. If the observer were to hurry towards the source of the light, the observer would now pass wavecrests more frequently than the resting observer. That would mean that moving observer would find the frequency of the light to have increased (AND CORRESPONDINGLY FOR THE WAVELENGTH - THE DISTANCE BETWEEN CRESTS - TO HAVE DECREASED)." Obviously John Norton does not find a wavelength varying with the speed of the observer absurd. Others do: http://www.lewrockwell.com/orig6/bethell4.1.1.html Tom Bethell: "Einstein postulated - assumed - that the speed of light is a constant irrespective of the motion, not just of the light source, but also of the observer. And that "observer" part was very hard to accept. A sound wave travels at a constant speed in air (of a given temperature and density) whatever the motion of the sound source. Sound from an airplane travels forward at a speed that is unaffected by the speed of the plane. But if you travel toward that approaching sound wave then you must ADD your speed to that of the plane's sound wave if you are to know the speed with which it approaches you." http://www.hep.man.ac.uk/u/roger/PHY.../lecture18.pdf Roger Barlow: "Now suppose the source is fixed but the observer is moving towards the source, with speed v. In time t, ct/(lambda) waves pass a fixed point. A moving point adds another vt/(lambda). So f'=(c +v)/(lambda)." http://www-physics.ucsd.edu/students.../lecture16.pdf Convention we will choose: u = velocity of observer or source v = velocity of wave Moving Observer Observer approaching: f'=(1/T')=(v+u)/(lambda) Observer receding: f'=(1/T')=(v-u)/(lambda) http://www.expo-db.be/ExposPrecedent...%20Doppler.pdf 6. Source immobile - Observateur en mouvement La distance entre les crêtes, la longueur d'onde lambda ne change pas. Mais la vitesse des crêtes par rapport à l'observateur change ! L'observateur se rapproche de la source f' = V'/(lambda) f' = f (1 + Vo/V) L'observateur s'éloigne de la source f' = f (1 - Vo/V) http://www.eng.uwi.tt/depts/elec/sta...relativity.pdf The Invalidation of a Sacred Principle of Modern Physics Stephan J.G. Gift "For a stationary observer O, the stationary light source S emits light at speed c, wavelength Lo, and frequency Fo given by Fo=c/Lo. If the observer moves toward S at speed v, then again based on classical analysis, the speed of light relative to the moving observer is (c + v) and not c as required by Einstein's law of light propagation. Hence the observer intercepts wave-fronts of light at a frequency fA, which is higher than Fo, as is observed, and is given by fA = (c+v)/Lo Fo. (...) In light of this elementary result invalidating STR, it is difficult to understand why this invalid theory has been (and continues to be) accepted for the past 100 years." Pentcho Valev |
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A light source on top of a tower of height h emits light with
frequency f and speed c (relative to the source). The light reaches an observer on the ground with frequency f' and speed c' (relative to the observer). Equivalently, a light source at the front end of an accelerating rocket of length h and accelaration g emits light with frequency f and speed c (relative to the source). The light reaches an observer at the back end with frequency f' and speed c' (relative to the observer). Consider equation (13.2) on p. 3 in: http://student.fizika.org/~jsisko/Kn...Morin/CH13.PDF f' = f(1+v/c) = f(1+gh/c^2) (13.2) where v is the relative speed of the light source (at the moment of emission) and the observer (at the moment of reception) in the rocket scenario. By combining this equation with: (frequency) = (speed of light)/(wavelength) we obtain THE FUNDAMENTAL EQUATIONS OF NEWTON'S EMISSION THEORY OF LIGHT: c' = c+v = c(1+gh/c^2) which CONTRADICT EINSTEIN'S 1905 FALSE LIGHT POSTULATE. The Pound- Rebka experiment is compatible with the emission theory's fundamental equations: http://student.fizika.org/~jsisko/Kn...Morin/CH13.PDF David Morin (p. 4): "This GR time-dilation effect was first measured at Harvard by Pound and Rebka in 1960. They sent gamma rays up a 20m tower and measured the redshift (that is, the decrease in frequency) at the top. This was a notable feat indeed, considering that they were able to measure a frequency shift of gh/c^2 (which is only a few parts in 10^15) to within 1% accuracy." Einstein explicitly used the equation c'=c(1+gh/c^2) in the period 1907-1915, then replaced it with c'=c(1+2gh/c^2). This means that, in Einstein's theories, the speed of light has always been VARIABLE in a gravitational field. The constancy of the speed of light taught by Stephen Hawking and other hypnotists in Einsteiniana is a relatively recent fraud designed to additionally confuse believers' minds: http://www.amazon.com/Brief-History-.../dp/0553380168 Stephen Hawking, "A Brief History of Time", Chapter 6: "Under the theory that light is made up of waves, it was not clear how it would respond to gravity. But if light is composed of particles, one might expect them to be affected by gravity in the same way that cannonballs, rockets, and planets are.....In fact, it is not really consistent to treat light like cannonballs in Newton's theory of gravity because the speed of light is fixed. (A cannonball fired upward from the earth will be slowed down by gravity and will eventually stop and fall back; a photon, however, must continue upward at a constant speed...)" http://www.hawking.org.uk/index.php?...64&It emid=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://math.ucr.edu/home/baez/physic..._of_light.html Steve Carlip: "Einstein went on to discover a more general theory of relativity which explained gravity in terms of curved spacetime, and he talked about the speed of light changing in this new theory. In the 1920 book "Relativity: the special and general theory" he wrote: ". . . according to the general theory of relativity, the law of the constancy of the velocity of light in vacuo, which constitutes one of the two fundamental assumptions in the special theory of relativity [. . .] cannot claim any unlimited validity. A curvature of rays of light can only take place when the velocity of propagation of light varies with position." Since Einstein talks of velocity (a vector quantity: speed with direction) rather than speed alone, it is not clear that he meant the speed will change, but the reference to special relativity suggests that he did mean so. THIS INTERPRETATION IS PERFECTLY VALID AND MAKES GOOD PHYSICAL SENSE, BUT A MORE MODERN INTERPRETATION IS THAT THE SPEED OF LIGHT IS CONSTANT in general relativity." David Morin's text referred to above reappears as Chapter 14 in: http://www.people.fas.harvard.edu/~djmorin/book.html Introduction to Classical Mechanics With Problems and Solutions David Morin Cambridge University Press Pentcho Valev |
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Double-edged experiments in Einsteiniana's schizophrenic world (John
Norton and Tom Roberts are famous hypnotists in Einsteiniana): http://groups.google.com/group/sci.p...abc7dbb30db6c2 John Norton: "THE MICHELSON-MORLEY EXPERIMENT IS FULLY COMPATIBLE WITH AN EMISSION THEORY OF LIGHT THAT CONTRADICTS THE LIGHT POSTULATE." Tom Roberts: "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." Pentcho Valev |
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The confession that, apart from gloriously confirming Einstein's 1905
constant-speed-of-light postulate (c'=c), the Michelson-Morley experiment somehow confirms the antithesis, the equation c'=c+v given by Newton's emission theory of light, has only come recently, when theoretical physics is irreversibly dead, the scientific rationality is completely destroyed and the public couldn't care less about both c'=c and c'=c+v: 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." 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" is also a statement, true or false, that the public couldn't care less about. In fact, it was Divine Albert who first used the Michelson-Morley experiment "as support for the light postulate of special relativity": http://query.nytimes.com/gst/abstrac...66838A 639EDE The New York Times, April 19, 1921 "The special relativity arose from the question of whether light had an invariable velocity in free space, he [Einstein] said. The velocity of light could only be measured relative to a body or a co-ordinate system. He sketched a co-ordinate system K to which light had a velocity C. Whether the system was in motion or not was the fundamental principle. This has been developed through the researches of Maxwell and Lorentz, the principle of the constancy of the velocity of light having been based on many of their experiments. But did it hold for only one system? he asked. He gave the example of a street and a vehicle moving on that street. If the velocity of light was C for the street was it also C for the vehicle? If a second co-ordinate system K was introduced, moving with the velocity V, did light have the velocity of C here? When the light traveled the system moved with it, so it would appear that light moved slower and the principle apparently did not hold. Many famous experiments had been made on this point. Michelson showed that relative to the moving co-ordinate system K1, the light traveled with the same velocity as relative to K, which is contrary to the above observation. How could this be reconciled? Professor Einstein asked." Needless to say, "later writers almost universally" continue to teach the blatant lie according to which the Michelson-Morley experiment confirms Einstein's 1905 constant-speed-of light postulate (and the public couldn't care less about what later writers almost universally teach): http://www.amazon.com/Faster-Than-Sp.../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! Einstein's 1905 special theory of relativity was in part a response to this astonishing result. What Einstein realized was that if c did not change, then something else had to give. That something was the idea of universal and unchanging space and time. This is deeply, maddeningly counterintuitive. In our everyday lives, space and time are perceived as rigid and universal. Instead, Einstein conceived of space and time-space-time-as a thing that could flex and change, expanding and shrinking according to the relative motions of the observer and the thing observed. The only aspect of the universe that didn't change was the speed of light. And ever since, the constancy of the speed of light has been woven into the very fabric of physics, into the way physics equations are written, even into the notation used. Nowadays, to "vary" the speed of light is not even a swear word: It is simply not present in the vocabulary of physics. Hundreds of experiments have verified this basic tenet, and the theory of relativity has become central to our understanding of how the universe works." Pentcho Valev |
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