Re: Gravitational time dilation HOAX along the years

On 12/20/2024 05:56 PM, Ross Finlayson wrote:

On 12/20/2024 04:58 PM, rhertz wrote:

On Fri, 20 Dec 2024 22:36:45 +0000, J. J. Lodder wrote:
>

rhertz <hertz778@gmail.com> wrote:
>

On Fri, 20 Dec 2024 11:56:48 +0000, J. J. Lodder wrote:
>

rhertz <hertz778@gmail.com> wrote:
>

This deserves a DEEP READING by all, relativists or not:
>
>
https://www.privatdozent.co/p/einstein-and-hilberts-relativity
>
Einstein and Hilbert's Relativity Race
Who generalized relativity first, Einstein or Hilbert?
Jørgen Veisdal
Jul 03, 2021

>
So the answer is once again Einstein.
Why am I not surprised?
>
Jan

>
Read it again, fanatic.
>
You have serious problem with text comprehension. Dyslexia or denial?

>
The problem seems to be entirely yours.
What is it that you don't understand about:
=====
It is indisputable that Hilbert, like all of his other colleagues,
acknowledged Einstein as the sole creator of relativity theory (Fölsing,
1993). This is confirmed in many places, even on the first page of
Hilbert's publication.  (in the conclusion of your ref.)
=====
>
Jan

>
>
History: Einstein was no lone genius
https://www.nature.com/articles/527298a
>
***************************************************************
A century ago, in November 1915, Albert Einstein published his general
theory of relativity in four short papers in the proceedings of the
Prussian Academy of Sciences in Berlin1. The theory is often presented
as the work of a lone genius. In fact, the physicist received a great
deal of help from friends and colleagues, most of whom never rose to
prominence and have been forgotten.
>
Michele Besso: Discussions between Besso and Einstein earned the former
the sole acknowledgment in the most famous of Einstein's 1905 papers,
the one introducing the special theory of relativity. Einstein worked
with Besso in the summer of 1913 to investigate whether the Grossman
They found that it could only explain less than 1˝. Nordström's theory
gave 7˝ in the wrong direction. These calculations are preserved in the
'Einstein–Besso manuscript' of 1913. Besso contributed significantly to
the calculations and raised interesting questions.
Einstein and Besso also checked whether the Entwurf equations hold in a
rotating coordinate system. In that case the, such as the centrifugal
force we experience on a merry-go-round,. The theory seemed to pass this
test. In August 1913, Besso warned Einstein that inertial forces of
rotation could not be interpreted as gravitational forces. Einstein did
not heed the warning, which would cost him to lose two years of work,
until November 1915.
>
Hermann Minkowski: reformulated the 1905 theory in pure mathematical
terms, introducing the concept of spacetime and the energy–momentum
tensor, when a special-relativistic reformulation of the theory of
electrodynamics of Maxwell and Lorentz was introduced. It soon became
clear that an energy–momentum tensor could be defined for physical
systems other than electromagnetic fields. The tensor took centre stage
in the new relativistic mechanics presented in the first textbook on
special relativity, Das Relativitätsprinzip, written by Max Laue in
1911.
>
Marcel Grossman: In 1912, Einstein returned to Zurich and was reunited
with Grossmann at the ETH. The pair joined forces to generate a fully
fledged theory. Grossman was the only author of the mathematical part,
based on derivations of Gauss's theory of curved surfaces. As we know
from recollected conversations, Einstein told Grossmann: “You must help
me, or else I'll go crazy.”. Grossman was highly recognized as a
mathematician by then, and used the body of work of the italian
Levi-Civita to build the core of the Entwurf I paper. The main advance
between this 1913 Entwurf theory and the general relativity theory of
November 1915 are the final field equations as 'generally covariant'.
>
Gunnar Nordström: Among several new theories proposed since 1911, in
which gravity, like electromagnetism, was represented by a field in the
flat space-time of special relativity, Nordström's theory was
particularly promising. Einstein compared the Entwurf theory to
Nordström's theory, and worked on both theories between May and late
August 1913.
>
Friedrich Kottler:  In 1912, the Viennese physicist generalized Laue's
formalism from flat to curved space-time. Einstein and Grossmann relied
on this generalization in their formulation of the Entwurf theory.
During his 1913 Vienna lecture, Einstein called for Kottler to stand up
and be recognized for this work.
>
Adriaan Fokker:  In Zurich, Einstein teamed up with Fokker, a student of
Lorentz, to reformulate the Nordström theory using the same kind of
mathematics that Grossmann had used to formulate the Entwurf theory.
Einstein and Fokker showed that in both theories the gravitational field
can be incorporated into the structure of a curved space-time. This work
gave Einstein a clearer picture of the structure of the Grossman's
Entwurf theory, which helped him and Grossmann in a second joint paper
on the theory, published in May 1914.
>
Lorentz and Paul Ehrenfest: Once the First World War began, Berlin's
scientific elite showed no interest in the Entwurf theory, although
renowned colleagues elsewhere did. From Leiden, the Netherlands Lorentz
and Ehrenfest volunteered to help Einstein in secret, due to the laws of
war imposed in Germany.
>
David Hilbert:  In the summer of 1915, while lecturing in Göttingen due
to Hilbert's invitation,  Einstein explained to Hilbert the status of
his work, and asked for help in many concepts of absolute differential
geometry. Due to Hilbert's comments on his work, Einstein started to
have serious doubts. He discovered to his dismay that the Entwurf theory
does not make rotational motion relative. Besso was right. Einstein
wrote to Freundlich for help: his “mind was in a deep rut”, so he hoped
that the young astronomer as “a fellow human being with unspoiled brain
matter” could tell him what he was doing wrong. Freundlich could not
help him.
>
Hilbert was curious about the true solution of the general covariant
field equation, and started to work on this problem by September 1915.
It was Klein, a colleague of Hilbert, who warned Einstein about
Hilbert's decision.
Worried that Hilbert might beat him to the punch, Einstein maintained
written communication with Hilbert, from which he learned that Hilbert
had finished a draft with the correct theory. Einstein asked Hilbert for
a copy of his work, to compare with his one, after what he rushed new
equations into print in early November 1915, modifying them the
following week and again two weeks later in subsequent papers submitted
to the Prussian Academy. The field equations were generally covariant at
last. That particular letter from Hilbert disappeared.
>
>
Freundlich: Working close to Einstein since 1912, when Einstein returned
to the perihelion motion of Mercury, Freundlich guided Einstein about
the reformulation of the theory by using only the Sun and a massless
point-like Mercury, for which he provided  the astronomical data
developed by Le Verrier and Newcomb, which accounted for the total
influence of the relevant celestial bodies plus the (Newcomb) missing
43″ per century. Einstein kept quiet on why he had been able to do the
calculations, a partial variation of the work with Besso in 1913.
>
Other "almost intimate friends":
>
Alexander Pick: Got for Einstein the professorship in Vienna in 1911,
and introduced him into Riemann's geometry, hinting him about the
existence of new theories based on Riemann, from the school of northern
Italian mathematicians like Ricci Cubarstro and Levi-Civita. After a
quarrel with Pick, he abandoned Vienna only 14 months after, seeking for
Grossman's help. He was a mathematician, specialized in similar fields
than Grossman, as it was a trend in that epoch.
>
Arnold Sommerfeld: The head of theoretical physics department from
Munich University was a close confident of Einstein, and the first to
whom Einstein communicated about the last presentation to the PAS, on
Nov. 25 1915.
>
Tullio Levi-Civita: Once his name became known, due to the Grossman
Entwurf, he became a secret adviser for Einstein during 1914 and 1915.
The letters between them disappeared because, due to WWI, it was an act
of treason for Italians to have any connection with Germans.
>
Von Laue, Scharzschild, Mie (on the board of the Prussian Academy of
Science), Klein and several other physicists and astronomers helped
Einstein as well, between 1911 and 1917.
>
And MANY OTHER UNKNOWN people that helped him, which were erased from
history.
>
"Helped": a polite form to say that Einstein used them, to discard them
at the earliest convenience. Grossman and Besso are the most relevant
examples of his art of back-stabbing. Also, Max Planck, who introduced
him into the physics community at Germany.
>
A thief, plagiarist, liar, deceiver, usurper, fraudulent crook,
mythomaniac, pretender, etc. No name callings are sufficient to depict
the profile of this delinquent at large of physics.
>
Maybe he could do all that because he was a protected Jew? Zionism was
peaking by then. Only think of Eddington and the bridge that Lorentz
established between him and Einstein, in the middle of WWI. Lorentz, the
spokesperson in charge of EInstein's PR in Europe and US since 1910.

>
Freundlich's 1923 paper on General Relativity was recently
released or to Gutenberg.
>
https://www.gutenberg.org/cache/epub/70793/pg70793-images.html
>
"Dr. Freundlich is not only highly qualified as a specialist in the
various branches of knowledge involved to demonstrate the subject; he is
also the first amongst fellow-scientists who has taken pains to put the
theory to the test. " -- Einstein
>
He seems kind of like the Maclaurin to Newton.
>
Sagan one time said "thank libraries".
>
>
It used to be said "at one point only three people
in the world understood Relativity Theory, ...."
>
Now, one of them's usually assumed to be Einstein.
>
Yet, "relativity" since "absolutes" is a classical
concept of course - "relativity theory" is as old
as physics itself, it's like "ideals", "principles",
"relativity" is always a part of physics.
>
So, a theory like Einstein's Relaitvity:
"motion is relative (space and time are absolutes)"
has one time Einstein wrote, or in paraphrase,
"What are we to make of this theory that at all
merely is a single negative assertion, that
motion is not absolute?"
>
And it's like, yeah, Einstein, thanks, SR _is_ local.
>
>
So, like Sagan said one time: "thank libraries".
>
>
Now, we know these days that one of the crucial
tests, of the deflection of light, is about half-right.
>
What I mean by that is that it's better than zero right,
yet, it's as well that there yet remains more,
about light, and lensing.
>
>
Then, "light's speed is constant and photons are
particles and photons are 1-1 electrons that are
e/m atoms, SR", is just a thing. It's a good thing -
these days though Einstein advises that it is
GR that defines SR, not the other way around,
and, light is yet "special", and, "spacial".
>
(Or, Fresnel and Arago and Bell and Aspect.)
>
>
>
>

I don't suppose you happen to have a copy of
C. Neumann. "Ueber die Prinzipien der Galilei-Newtonschen Theorie"
translated to English sitting around,
though there are 2023 editions of the original
since the 1870 is out-of-copyright.
"This is the attitude which was also taken up by L. Lange, H. Seeliger,
and others, in later researches. Maxwell selected this definition too
(in "Matter and Motion"). On the other hand, H. Streintz[11] (following
Poisson and d'Alembert) has demanded the disconnection and independence
of the time-measure from the law of inertia, on the ground that the
roots of the time-concept have a deeper and more general foundation than
the law of inertia. According to his opinion, every physical event,
which can be made to take place again under exactly the same conditions,
can serve for the determination of a time-measure, inasmuch as every
identical event must claim precisely the same duration of time;
otherwise, an ordered description of physical events would be out of the
question. In point of fact, the clock is constructed on this principle.
It is this principle which enables an observer to undertake a
time-measurement at least for his place of observation."
Einstein was pretty consistent with his final version
of Relativity with
"it's an inertial-system,
it's a differential-system,
there's a 'the time', ...,
and SR's kind of on the side, ...."
That the aether is not "that luminous aether that makes
a connectedness for gravity" has that if you have a fall-gravity
then there's still spaces where motion goes, and the usual sorts
of ideas that Einstein prefaces Turner introduces Freundlich
balances that "there's space-contraction" and the like in terms
of explanations of Michelson-Morley and the following and so on,
have that as well when in Sidelights on Relativity the Einstein
wrote about the aether he was like "well of course there is one".
Then, people probably confuse various concepts in mechanics
and electromechanics about aether, that Einstein means
"for electrical theory, the aether I mean".
Then, as is explained, it's all about line-elements
and path-elements what the tensors intend to entail.
"A mechanics of the relative motions of bodies, which is in harmony with
the two fundamental postulates of continuity and relativity, can be
built up only on a fundamental law of motion that preserves its form
independently of the kind of motion the system is undergoing."
-- Freundlich
Then, that acceleration gets involved, is still a thing.
("Freundlich" means "friendly" is my impression of it.)
Freundlich is a bit too quick to assume completions
of his deductions, which are pretty good.
Here then about motion is that yes there are frames
and yes there are space, _and_, yes there are space-frames
and yes there are frame-spaces, Rahme-Raumen and Raume-Rahmen.
"Rest-Exchange-Momentum", ....
"The experimental verification of Einstein's theory of gravitation has
thus not reached completion. But if, in spite of this, the theory can,
even at this early stage, justly claim general attention, the reason is
to be found in the unusual unity and logical structure of the ideas
underlying it." -- Freundlich 1923
That's pretty agreeable.
"In truth, it solves, at one stroke, all the riddles, concerning the
motions of bodies, which have presented themselves since the time of
Newton, as the result of the conventional view about the meaning of
space and time in the physical description of natural phenomena." --
Freundlich 1923
Then, that's disagreeable, though he qualifies it.
Then, what's disagreeable about the "unusual unity and logical
structure", like fluid models and like energy and like "the spectrum"
of all radiation, equivalencies, is that equivalencies are not
necessarily unities, and indeed, all the various empirical milieus
have they are not the same, while yet in terms of motion, mostly,
that energy and entelechy make content and connectedness,
about dunamis and dynamis is about how the potential fields
are the real fields and a sum-of-histories sum-of-potentials
least-constant-action least-constant-gradient, what makes a theory.
"Moreover, one can regard every vibrating system (which emits a spectral
line) as a clock, the motion of which, according to the investigation
made just above, depends upon the gravitational potentials of the place
where it is stationed. " -- Freundlich
"The third and particularly important inference from Einstein's theory
is the dependence of the velocity of light upon the gravitational
potential, ...", the potential.