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PIECES OF EINSTEINIANA PROVED CORRECT



 
 
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  #1  
Old May 9th 10, 11:01 AM posted to sci.physics.relativity,sci.physics,fr.sci.physique,fr.sci.astrophysique,sci.astro
Pentcho Valev
external usenet poster
 
Posts: 8,078
Default PIECES OF EINSTEINIANA PROVED CORRECT

http://www.telegraph.co.uk/science/s...elativity.html
"Professor Jim Hough, an expert on gravitational waves at Glasgow
University and a member of the committee that drew up the plans, said:
"Gravitational waves are the last piece of Einstein's theory of
general relativity that has still to be proved correct."

Pieces of Einsteiniana proved correct:

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.upd.aas.org/had/meetings/2010Abstracts.html
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 Eddingtons estimate.
Initially this achievement was hailed as the third empirical test of
General Relativity (after Mercurys anomalous perihelion advance and
the 1919 measurement of the deflection of starlight). It has been
known for some time that both Eddingtons estimate and Adams
measurement underestimated the true Sirius B gravitational redshift by
a factor of four."

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://astronomy.ifrance.com/pages/g.../einstein.html
"Le deuxième test classique donne en revanche des inquiétudes.
Historiquement, pourtant, l'explication de l'avance du périhélie de
Mercure, proposé par Einstein lui-même, donna ses lettres de noblesse
à la relativité générale. Il s'agissait de comprendra pourquoi le
périhélie de Mercure ( le point de son orbite le plus proche du
soleil ) se déplaçait de 574 s d'arc par siècle. Certes, sur ces 574
s, 531 s'expliquaient par les perturbations gravitationnels dues aux
autres planètes. Mais restait 43 s, le fameux effet "périhélique "
inexpliqué par les lois de Newton. Le calcul relativiste d'Einstein
donna 42,98 s ! L'accord et si parfait qu'il ne laisse la place à
aucune discussion. Or depuis 1966, le soleil est soupçonné ne pas être
rigoureusement sphérique mais légèrement aplati à l'équateur. Une très
légère dissymétries qui suffirait à faire avancer le périhélie de
quelques secondes d'arc. Du coup, la preuve se transformerait en
réfutation puisque les 42,88 s du calcul d'Einstein ne pourrait pas
expliquer le mouvement réel de Mercure."

http://astronomy.ifrance.com/pages/g.../einstein.html
"Arthur Eddington , le premier en 1924, calculâtes théoriquement un
décalage 0,007% attendu la surface de Sirius mais avec des données
fausses à l'époque sur la masse et le rayon de l'étoile. L'année
suivante, Walter Adams mesurerait exactement ces 0.007%. Il s'avère
aujourd'hui que ces mesures , qui constituèrent pendant quarante ans
une "preuves" de la relativité, étaient largement "arrangée" tant
était grand le désir de vérifier la théorie d'Enstein. La véritable
valeur fut mesurée en 1965. Elle est de 0.03% car Sirius est plus
petite , et sont champ de gravitation est plus fort que ne le pensait
Eddington."

http://www.cieletespace.fr/evenement...taient-fausses
RELATIVITE: LES PREUVES ETAIENT FAUSSES
"Le monde entier a cru pendant plus de cinquante ans à une théorie non
vérifiée. Car, nous le savons aujourd'hui, les premières preuves,
issues notamment d'une célèbre éclipse de 1919, n'en étaient pas.
Elles reposaient en partie sur des manipulations peu avouables visant
à obtenir un résultat connu à l'avance, et sur des mesures entachées
d'incertitudes, quand il ne s'agissait pas de fraudes caractérisées."

http://www.cieletespaceradio.fr/inde...-la-relativite
"Au début du XXème siècle, des scientifiques comme le Britannique
Arthur Eddington avaient tant à coeur de vérifier la théorie de la
relativité qu'ils ont tout mis en oeuvre pour que leurs expériences
soient probantes." (ECOUTEZ!)

Pentcho Valev

  #2  
Old May 9th 10, 12:53 PM posted to sci.physics.relativity,sci.physics,fr.sci.physique,fr.sci.astrophysique,sci.astro
eon
external usenet poster
 
Posts: 3
Default PIECES OF EINSTEINIANA PROVED CORRECT

On May 9, 12:01 pm, Pentcho Valev wrote:
http://www.telegraph.co.uk/science/s...t-scientific-i...
"Professor Jim Hough, an expert on gravitational waves at Glasgow


expert in something that does not exists

University and a member of the committee that drew up the plans, said:
"Gravitational waves are the last piece of Einstein's theory of
general relativity that has still to be proved correct."

Pieces of Einsteiniana proved correct:

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."


the bending was difraction because the heat and smoke

  #3  
Old May 9th 10, 08:07 PM posted to sci.physics.relativity,fr.sci.physique,fr.sci.astrophysique,sci.astro
Uncle Al
external usenet poster
 
Posts: 697
Default PIECES OF EINSTEINIANA PROVED CORRECT

Pentcho Valev wrote:

http://www.telegraph.co.uk/science/s...elativity.html
"Professor Jim Hough, an expert on gravitational waves at Glasgow
University and a member of the committee that drew up the plans, said:
"Gravitational waves are the last piece of Einstein's theory of
general relativity that has still to be proved correct."

[snip 128 lines of crap]

Hey stooopid - what else would allow the astronomic orbits of
degenerate matter to decay? Just because a TeleTubby's butt cheeks
wiggle doesn't mean there is a Smurf stuck inside - could be a Keebler
elf. Prove it.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz4.htm
  #4  
Old May 10th 10, 06:23 AM posted to sci.physics.relativity,sci.physics,fr.sci.physique,fr.sci.astrophysique,sci.astro
Pentcho Valev
external usenet poster
 
Posts: 8,078
Default PIECES OF EINSTEINIANA PROVED CORRECT

In 1911 Einstein found it profitable to adopt the equation c'=c(1+V/
c^2) given by Newton's emission theory of light and so created
something that might be named the 1911 piece of Einsteiniana:

http://www.physlink.com/Education/AskExperts/ae13.cfm
"So, it is absolutely true that the speed of light is not constant in
a gravitational field [which, by the equivalence principle, applies as
well to accelerating (non-inertial) frames of reference]. If this were
not so, there would be no bending of light by the gravitational field
of stars....Indeed, this is exactly how Einstein did the calculation
in: 'On the Influence of Gravitation on the Propagation of Light,'
Annalen der Physik, 35, 1911. which predated the full formal
development of general relativity by about four years. This paper is
widely available in English. You can find a copy beginning on page 99
of the Dover book 'The Principle of Relativity.' You will find in
section 3 of that paper, Einstein's derivation of the (variable) speed
of light in a gravitational potential, eqn (3). The result is,
c' = c0 ( 1 + V / c^2 )
where V is the gravitational potential relative to the point where the
speed of light c0 is measured."

Later Einstein found it profitable to create the 1915 piece of
Einsteiniana (known as Divine Albert's Divine General Relativity)
where the Newtonian equation c'=c(1+V/c^2) was replaced by the
Einsteinian equation c'=c(1+2V/c^2). That is, if in the 1911 piece of
Einsteinana the speed of light only humbly varies with the
gravitational potential, in the 1915 piece of Einsteiniana the speed
of light varies with the gravitational potential in a glorious way:

http://www.mathpages.com/rr/s6-01/6-01.htm
"In geometrical units we define c_0 = 1, so Einstein's 1911 formula
can be written simply as c=1+phi. However, this formula for the speed
of light (not to mention this whole approach to gravity) turned out to
be incorrect, as Einstein realized during the years leading up to 1915
and the completion of the general theory. In fact, the general theory
of relativity doesn't give any equation for the speed of light at a
particular location, because the effect of gravity cannot be
represented by a simple scalar field of c values. Instead, the "speed
of light" at a each point depends on the direction of the light ray
through that point, as well as on the choice of coordinate systems, so
we can't generally talk about the value of c at a given point in a non-
vanishing gravitational field. However, if we consider just radial
light rays near a spherically symmetrical (and non- rotating) mass,
and if we agree to use a specific set of coordinates, namely those in
which the metric coefficients are independent of t, then we can read a
formula analogous to Einstein's 1911 formula directly from the
Schwarzschild metric. (...) In the Newtonian limit the classical
gravitational potential at a distance r from mass m is phi=-m/r, so if
we let c_r = dr/dt denote the radial speed of light in Schwarzschild
coordinates, we have c_r =1+2phi, which corresponds to Einstein's 1911
equation, except that we have a factor of 2 instead of 1 on the
potential term."

http://www.speed-light.info/speed_of_light_variable.htm
"Einstein wrote this paper in 1911 in German (download from:
http://www.physik.uni-augsburg.de/an...35_898-908.pdf
). It predated the full formal development of general relativity by
about four years. You can find an English translation of this paper in
the Dover book 'The Principle of Relativity' beginning on page 99; you
will find in section 3 of that paper Einstein's derivation of the
variable speed of light in a gravitational potential, eqn (3). The
result is: c'=c0(1+phi/c^2) where phi is the gravitational potential
relative to the point where the speed of light co is measured......You
can find a more sophisticated derivation later by Einstein (1955) from
the full theory of general relativity in the weak field
approximation....For the 1955 results but not in coordinates see page
93, eqn (6.28): c(r)=[1+2phi(r)/c^2]c. Namely the 1955 approximation
shows a variation in km/sec twice as much as first predicted in 1911."

In 1960 Pound and Rebka proved experimentally that the gravitational
redshift factor is 1+V/c^2. Einsteinans saw its consistency with the
Newtonian equation c'=c(1+V/c^2) and inferred that the 1911 piece of
Einsteiniana was proved correct but in a humble way. They also
realized that the gravitational redshift factor 1+V/c^2 was
inconsistent with the Einsteinian equation c'=c(1+2V/c^2) and inferred
that the 1915 piece of Einsteiniana was proved correct in a glorious
way.

Pentcho Valev wrote:

http://www.telegraph.co.uk/science/s...elativity.html
"Professor Jim Hough, an expert on gravitational waves at Glasgow
University and a member of the committee that drew up the plans, said:
"Gravitational waves are the last piece of Einstein's theory of
general relativity that has still to be proved correct."

Pieces of Einsteiniana proved correct:

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.upd.aas.org/had/meetings/2010Abstracts.html
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 Eddingtons estimate.
Initially this achievement was hailed as the third empirical test of
General Relativity (after Mercurys anomalous perihelion advance and
the 1919 measurement of the deflection of starlight). It has been
known for some time that both Eddingtons estimate and Adams
measurement underestimated the true Sirius B gravitational redshift by
a factor of four."

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://astronomy.ifrance.com/pages/g.../einstein.html
"Le deuxième test classique donne en revanche des inquiétudes.
Historiquement, pourtant, l'explication de l'avance du périhélie de
Mercure, proposé par Einstein lui-même, donna ses lettres de noblesse
à la relativité générale. Il s'agissait de comprendra pourquoi le
périhélie de Mercure ( le point de son orbite le plus proche du
soleil ) se déplaçait de 574 s d'arc par siècle. Certes, sur ces 574
s, 531 s'expliquaient par les perturbations gravitationnels dues aux
autres planètes. Mais restait 43 s, le fameux effet "périhélique "
inexpliqué par les lois de Newton. Le calcul relativiste d'Einstein
donna 42,98 s ! L'accord et si parfait qu'il ne laisse la place à
aucune discussion. Or depuis 1966, le soleil est soupçonné ne pas être
rigoureusement sphérique mais légèrement aplati à l'équateur. Une très
légère dissymétries qui suffirait à faire avancer le périhélie de
quelques secondes d'arc. Du coup, la preuve se transformerait en
réfutation puisque les 42,88 s du calcul d'Einstein ne pourrait pas
expliquer le mouvement réel de Mercure."

http://astronomy.ifrance.com/pages/g.../einstein.html
"Arthur Eddington , le premier en 1924, calculâtes théoriquement un
décalage 0,007% attendu la surface de Sirius mais avec des données
fausses à l'époque sur la masse et le rayon de l'étoile. L'année
suivante, Walter Adams mesurerait exactement ces 0.007%. Il s'avère
aujourd'hui que ces mesures , qui constituèrent pendant quarante ans
une "preuves" de la relativité, étaient largement "arrangée" tant
était grand le désir de vérifier la théorie d'Enstein. La véritable
valeur fut mesurée en 1965. Elle est de 0.03% car Sirius est plus
petite , et sont champ de gravitation est plus fort que ne le pensait
Eddington."

http://www.cieletespace.fr/evenement...taient-fausses
RELATIVITE: LES PREUVES ETAIENT FAUSSES
"Le monde entier a cru pendant plus de cinquante ans à une théorie non
vérifiée. Car, nous le savons aujourd'hui, les premières preuves,
issues notamment d'une célèbre éclipse de 1919, n'en étaient pas.
Elles reposaient en partie sur des manipulations peu avouables visant
à obtenir un résultat connu à l'avance, et sur des mesures entachées
d'incertitudes, quand il ne s'agissait pas de fraudes caractérisées."

http://www.cieletespaceradio.fr/inde...-la-relativite
"Au début du XXème siècle, des scientifiques comme le Britannique
Arthur Eddington avaient tant à coeur de vérifier la théorie de la
relativité qu'ils ont tout mis en oeuvre pour que leurs expériences
soient probantes." (ECOUTEZ!)

Pentcho Valev

 




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