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EINSTEINIANA: ZOMBIE EDUCATION



 
 
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  #1  
Old November 12th 11, 08:39 AM posted to sci.astro,sci.math
Pentcho Valev
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Default 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

  #2  
Old November 12th 11, 01:22 PM posted to sci.astro,sci.math
Pentcho Valev
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Default 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

  #3  
Old November 12th 11, 09:08 PM posted to sci.astro,sci.math
Pentcho Valev
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Default 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

  #4  
Old November 25th 11, 02:40 PM posted to sci.astro,sci.math
Pentcho Valev
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Posts: 8,078
Default 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

  #5  
Old November 27th 11, 07:32 AM posted to sci.astro,sci.math
Pentcho Valev
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Posts: 8,078
Default 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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