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EINSTEINIANA: ZOMBIE EDUCATION
As the observer starts moving towards the wave source, waves start
hitting him more frequently, that is, the frequency he measures increases. However, while the observer is obviously unable to scrunch sound waves and water waves and their wavelength remains constant (that is, the speed of the waves relative to him increases), he gloriously manages to scrunch light waves so that their wavelength decreases and the speed of the waves relative to him remains constant, as gloriously postulated in Divine Albert's Divine Special Relativity: http://www.austincc.edu/jheath/Stell.../Deff/deff.htm James E. Heath, Professor of Astronomy and Physics, Chair, Physical Sciences: "If we are headed towards the source of sound waves (...), the soundwaves hit our eardrums more frequently that they would if we were both standing still. (...) Imagine that you are standing on a beach, feet barely in the water. Waves come lapping into the shore at a rate of, say, one every five seconds, over your toes. If you dive in, and start swiing out to sea, you are travelling into the waves. Therefore, as you swim out to sea, waves will hit you more frequently, say one every 3 seconds. If you are in a speedboat, that could even increase to one per second! The rate of waves has not changed to someone standing still on the beach, but the rate at which you encounter them has changed. If you then turn around and swim or motor back to shore, waves strike you less frequently as you head away from the waves. (...) In the second situation, the distance between the source and observer is decreasing; the two are getting closer. This can be because the source is in motion, the observer is in motion, or both. What matters is that the two objects are getting closer together. Notice how the light waves get "scrunched up" by this motion. If the observer is a human eye, then the light waves strike the eye more frequently, causing the eye to see a slighly different color. The wavelength of the obseved light (called simply "lambda") appears shorter than the wavelength the light would have if the objects were "at rest" (called "lambda-zero")." Pentcho Valev |
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EINSTEINIANA: ZOMBIE EDUCATION
http://www.astrosurf.com/quasar95/exposes/redshift.pdf
"Appliqué à la lumière, cet effet Doppler-Fizeau engendre un décalage des fréquences émises par une source en mouvement par rapport à un observateur. Comment expliquer ce phénomène ? Par un exemple simple : Une personne est debout sur le rivage d'un bord de la mer. Des vagues lui arrivent sur les pieds toutes les dix secondes. La personne marche, puis court en direction du large (là où se forment les vagues). Elle va à la rencontre des vagues, celles-ci l'atteignent avec une fréquence plus élevée (par exemple toutes les huit secondes, puis toutes les cinq secondes). La personne fait alors demi-tour et marche puis court en direction de la plage. Les vagues l'atteignent avec une fréquence moins élevée, par exemple toutes les douze, puis quinze secondes. Cette petite démonstration s'applique à une onde physique, comme un son, ou ici les vagues sur l'océan pour une meilleure compréhension. Elle peut être extrapolée à une onde lumineuse, en considérant que le sommet d'une vague est le point d'amplitude maximale de l'onde lumineuse." Ce qui est sûr (accepté par tout le monde), c'est que dans tous les cas où l'observateur commence à se déplacer vers la source, la fréquence qu'il mesure augmente. Il est de même sûr que dans tous les cas, sauf pour l'onde lumineuse, la vitesse de l'onde (par rapport à l'observateur) augmente elle aussi alors que la longueur d'onde reste constante - les mouvements de l'observateur n'ont évidemment aucune influence sur elle. Dans le cas de l'onde lumineuse, il est évident pour tous les Einsteiniens que la longueur d'onde diminue alors que la vitesse de l'onde par rapport à l'observateur reste constante (ici on chante "Divine Einstein" and "Yes we all believe in relativity, relativity, relativity"). Et c'est tout - le reste est inexpliquable. "Ce dont on ne peut parler, il faut le taire" dit Wittgenstein. Pentcho Valev |
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EINSTEINIANA: ZOMBIE EDUCATION
Zombie education and crimestop:
http://www.liferesearchuniversal.com/1984-22 George Orwell: "He set to work to exercise himself in crimestop. He presented himself with propositions - "the Party says the earth is flat", "the party says that ice is heavier than water" - and trained himself in not seeing or not understanding the arguments that contradicted them. It was not easy. It needed great powers of reasoning and improvisation. The arithmetical problems raised, for instance, by such a statement as "two and two make five" were beyond his intellectual grasp. It needed also a sort of athleticism of mind, an ability at one moment to make the most delicate use of logic and at the next to be unconscious of the crudest logical errors. Stupidity was as necessary as intelligence, and as difficult to attain." Orwell's text modified so as to describe a physics student's exercises in crimestop: "He set to work to exercise himself in crimestop. He presented himself with propositions - "The professor says that, when the observer starts moving towards the light source, the wavelength of the light decreases but its speed relative to the observer remains constant", "The professor says that a 80m long pole can be trapped inside a 40m long barn" - and trained himself in not seeing or not understanding the arguments that contradicted them. It was not easy. It needed great powers of reasoning and improvisation. The problems raised, for instance, by such a statement as "The Michelson-Morley experiment is compatible with both Einstein's 1905 light postulate and its antithesis, the equation c'=c+v given by Newton's emission theory of light" were beyond his intellectual grasp. It needed also a sort of athleticism of mind, an ability at one moment to make the most delicate use of logic and at the next to be unconscious of the crudest logical errors. Stupidity was as necessary as intelligence, and as difficult to attain." Pentcho Valev |
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EINSTEINIANA: ZOMBIE EDUCATION
Zombie education in France: The moving observer cannot change the
wavelength of sound waves but he MUST change the wavelength of light waves - otherwise bad things may happen to Divine Albert's Divine Theory (here Florence Durret and Loïc Villain hug and sing together "Divine Einstein" and "Yes we all believe in relativity, relativity, relativity"): http://media4.obspm.fr/public/AMC/pa...b-doppler.html Florence Durret, Loïc Villain: "Le premier d'entre eux est l'effet Doppler-Fizeau, une propriété des ondes, lumineuses mais également sonores, que l'on peut observer au quotidien. Ainsi, nous avons tous constaté qu'un véhicule motorisé qui s'approche de nous émet un son qui semble plus aigu (fréquence plus haute) que si le même véhicule était à l'arrêt à côté de nous, alors que lorsqu'il s'éloigne, le son nous semble plus grave (fréquence plus basse). On peut donc dire que le signal sonore émis par une source qui s'éloigne de nous est décalé vers les basses fréquences, et puisque cette propriété est vérifiée également pour les signaux lumineux, on parle souvent de décalage vers le rouge ou, en anglais, de redshift. (...) En raison de l'invariance de la vitesse de la lumière et du fait qu'une onde sonore nécessite un milieu matériel pour se propager, le décalage vers le rouge ne se fait pas exactement de la même façon pour une onde lumineuse ou sonore. En particulier, pour une onde sonore usuelle l'effet Doppler n'affecte pas la longueur d'onde (mais juste la fréquence, celle-ci étant changée différemment selon si c'est la source ou l'observateur qui bouge par rapport au milieu de propagation de l'onde, l'air pour le son), alors que pour une onde lumineuse les deux sont changées afin que la relation (longueur d'onde)=(vitesse de la lumière)/(fréquence) reste valable." Pentcho Valev |
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EINSTEINIANA: ZOMBIE EDUCATION
A succinct introduction to Einsteiniana's schizophrenia:
http://www.pbs.org/wgbh/nova/physics...mark-time.html Max Tegmark: "If someone asked Isaac Newton, "Excuse me, what's the time?" he would have felt that that question made sense because he believed that there was "the time," the absolute time, which was completely well-defined and ticked at the same rate for everybody. And Einstein overturned this and said no, each clock, even a perfect atomic clock, will run at a different rate, which depends on how fast the clock is moving and how far down it is in the Earth's gravitational field. It's all relative. The question, "What is the time?" is actually a trick question. There is no "the time," and "the time" flows at a different rate depending on how fast you're moving and depending on where you are." Tegmark's students forced to sing dithyrambs to Divine Albert's Divine Theory: http://www.youtube.com/watch?v=5PkLLXhONvQ We all believe in relativity, relativity, relativity. Yes we all believe in relativity, 8.033, relativity. Einstein's postulates imply That planes are shorter when they fly. Their clocks are slowed by time dilation And look warped from aberration. We all believe in relativity, relativity, relativity. Yes we all believe in relativity, 8.033, relativity. If Tegmark's students knew what was happening to them, they would sing a different song: http://www.youtube.com/watch?v=PmIHNN0DiGM Where once was light Now darkness falls ..................... So in the end I'll be what I will be ..................... You are lost You can never go home You are lost You can never go home. Pentcho Valev |
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