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Subject: Re: Gravitational time dilation HOAX along the years
Newsgroups: sci.physics.relativity
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From: Ross Finlayson <ross.a.finlayson@gmail.com>
Date: Fri, 20 Dec 2024 17:56:01 -0800
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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
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