Twin Paradox on Wikipedia : DVdm, an anonymous relativist fascist threatens me when I try to write the REAL DATA of Langevin's text

by Yanick Toutain

"You may be blocked from editing
 without further warning the next time
you make personal attacks on other people,
 as you did at Talk:Twin paradox.

Comment on content,
not on fellow editors. - DVdm (talk) 18:08, 9 July 2014 (UTC)"
Anonymous DVdm THREATENS ME !
After deletion of the real numbers
of Paul Langevin

DVdm is policeman, investigator, procurator, judge.... He is "all" on Wikipedia !
He is the owner of the page "TWIN PARADOX"
He can do whatever he wants !
He is the keeper of .... the lies !
He erases all the true quotations from the original text !
With his ally pseudo-Paradoctor, he erases the true numbers !

MERCREDI 9 JUILLET 2014

Twin paradox: On Wikipedia, a censor Paradoctor starts a war by deleting twice the real digital data from the Langevin's text (The war against materialism needs the ignorance and the obscurantism)

The 1st fascist relativistic clears my paragraph with real numerical data from the original text. 2 ° fascist threat relativistic me and just delete my comments (for explanation and protest their fascist censorship!).........

MARDI 8 JUILLET 2014

Twin Paradox on Wikipedia: I just write the real data of Paul Langevin in their "specific example" (Bologna 1911 The relativistic swindlers hardly ever give the real numbers)

Paul Langevin, a swindler !
Prophet of Einstein's
Church relativity

by Yanick Toutain

(...) "This remark provides the means
for any among us who wants to devote
two years of his life,
to find out what the Earth will be
 in two hundred years,
and to explore the future of the Earth,
by making in his life a jump ahead
 that will last two centuries
 for Earth and for him
 it will last two years,
(Real data of Langevin's text
Bologna 1911)

22h32
First fascist Paradoctor erase my text on Wikipedia

"don't see what this adds, if you want to reorganize the article, please state on the talk page how this would improve the article. (TW))"

When I give the REAL DATA... the anonymous relativist fascist Paradoctor "don't see what this adds" AND HE DESTROYS my text with the real data of Paul Langevin 
I just introduce the real data of Paul Langevin in an "specific example" of Wikipedia. One of countless examples with false data that were not in the original text.
I have not cleared their imaginary data but I just copy/paste their same paragraph below by inserting the actual data from the text of 1911.
The reader will soon see why these fascists are constantly erasing me whenever I try to turn the spotlight on the real text.
The worst of these "Wikipedia censors"  erased the real citations of Paul Langevin accusing me of making "original work"

FASCISTS USE MY PERSONNAL PAGE AS THEIR OWN GARDEN
Relativist fascists threaten me

Original research[modifier]

 Welcome to Wikipedia. We welcome and appreciate your contributions, including your edits to Twin paradox, but we cannot accept original research. Original research also encompasses combining published sources in a way to imply something that none of them explicitly say. Please be prepared to cite a reliable sourcefor all of your contributions. Thank you. - DVdm (talk) 21:57, 5 February 2014 (UTC)

 Please do not add original research or novel syntheses of published material to articles as you apparently did to Twin paradox. Please cite a reliable source for all of your contributions. Thank you. - DVdm (talk) 22:47, 5 February 2014 (UTC)

Note regarding this section title Quotation of true text of Langevin is destroyed by fascists and called "original research": please do not resort to personal attacts here on Wikipedia—see wp:NPA. - DVdm (talk) 23:01, 5 February 2014 (UTC)

March 2014[modifier]

 Hello, I'm DVdm. I wanted to let you know that I undid one of your recent contributions, such as the one you made with this edit to Talk:Twin paradox, because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. DVdm (talk) 18:56, 24 March 2014 (UTC)

 Please stop using talk pages such as Twin paradox for general discussion of the topic. They are for discussion related to improving the article; not for use as a forum or chat room. If you have specific questions about certain topics, consider visiting our reference desk and asking them there instead of on article talk pages. See here for more information. Thank you. Paradoctor (talk) 19:23, 24 March 2014 (UTC)

Building consensus[modifier]

If another editor reverts an edit of yours, and asks you to discuss it, don't revert back, that is considered edit warring. You might want to read WP:EDITCONSENSUS, that is how the process works. If you have questions, please feel free to ask. Paradoctor (talk) 21:50, 8 July 2014 (UTC)

Your recent editing history at Twin paradox shows that you are currently engaged in an edit war. Being involved in an edit war can result in your being blocked from editing—especially if you violate thethree-revert rule, which states that an editor must not perform more than three reverts on a single page within a 24-hour period. Undoing another editor's work—whether in whole or in part, whether involving the same or different material each time—counts as a revert. Also keep in mind that while violating the three-revert rule often leads to a block, you can still be blocked for edit warring—even if you don't violate the three-revert rule—should your behavior indicate that you intend to continue reverting repeatedly.

To avoid being blocked, instead of reverting please consider using the article's talk page to work toward making a version that represents consensus among editors. See BRD for how this is done. If discussions reach an impasse, you can then post a request for help at a relevant noticeboard or seek dispute resolution. In some cases, you may wish to request temporary page protection. - DVdm (talk) 15:59, 9 July 2014 (UTC)

 You may be blocked from editing without further warning the next time you make personal attacks on other people, as you did at Talk:Twin paradox. Comment on content, not on fellow editors. - DVdm (talk) 18:08, 9 July 2014 (UTC)

Twin paradox: On Wikipedia, a censor Paradoctor starts a war by deleting twice the real digital data from the Langevin's text (The war against materialism needs the ignorance and the obscurantism)

a comment on Wikipedia talk

about Twin Paradox

by Yanick Toutain

Twice yesterday, an anonymous Paradoctor reads Twin Paradox page (on Wikipedia) and - arrogating to itself a tyrannical law - deletes an entire paragraph that I had written with the intent to acquaint readers with the real text data original Paul Langevin.
I had not removed the false information contained in the wrong section but simply added the same paragraph (allegedly explanatory) by inserting the true digital text data from 1911 written by Paul Langevin.
(I left exactly the same text, but by entering the real figures of the text of Paul Lanvegin)
This did not please the anonymous Paradoctor which twice allowed himself to erase the TRUE FIGURES THE ORIGINAL TEXT OF LANGEVIN.

MARDI 8 JUILLET 2014

Twin Paradox on Wikipedia: I just write the real data of Paul Langevin in their "specific example" (Bologna 1911 The relativistic swindlers hardly ever give the real numbers)

No doubt that the content of this text and the actual figures used by the author of the text (not talking about twins but a traveler) must really bother some people!
It's been months that arrogant fascist censors are continually erase all my attempts to inform readers of the real data of the original text written by Paul Langevin in 1911.

Deux fois de suite hier, un anonyme Paradoctor lit la page Twin Paradox (sur Wikipédia) et - s'arrogeant un droit tyrannique - efface un paragraphe entier que j'avais rédigé dans l'intention de faire connaître aux lecteurs les véritables données du texte originel de Paul Langevin.
Je n'avais pas supprimé les fausses données contenu dans un paragraphe erroné mais simplement ajouté le même paragraphe (prétendument explicatif) en y insérant les véritables données numériques du texte de 1911 écrit par Paul Langevin.
(J'avais laissé exactement le même texte mais en inscrivant les vrais chiffres du texte de Paul Lanvegin)
Cela ne plut pas à l'anonyme Paradoctor qui, par deux fois, s'autorisa à effacer les VERITABLES CHIFFRES DU TEXTE ORIGINAL DE LANGEVIN.
Nul doute que le contenu de ce texte et les véritables chiffres utilisés par l'auteur du texte (qui ne parlait pas de jumeaux mais d'un Voyageur) doit vraiment déranger certaines personnes !
Cela fait des mois que des censeurs fascistes arrogants viennent continuellement effacer toutes mes tentatives pour informer les lecteurs des véritables données du texte originel écrit par Paul Langevin en 1911.

HERE IS THE COPY OF WIKIPEDIA TALK : TWIN PARADOX
Perhaps they will alsol DESTROY my comment

Quotation of true text of Langevin is destroyed by fascists and called "original research"[modifier]Original research[modifier]
(Redacted. Replaced copy of my talk page message. See User talk:Yanick Toutain#Original research - DVdm(talk))
La lecture du véritable texte de de Langevin permettra aux lecteurs curieux de passer outre les milliers de présentations tronquées et fausses du véritable problème originel : Page:Scientia - Vol. X.djvu/58
extraits du texte originel de Paul Langevin : "Il suffirait pour cela que notre voyageur consente à s’enfermer dans un projectile que la Terre lancerait avec une vitesse suffisamment voisine de celle de la lumière, quoique inférieure, ce qui est physiquement possible, en s’arrangeant pour qu’une rencontre, avec une étoile par exemple, se produise au bout d’une année de la vie du voyageur et le renvoie vers la Terre avec la même vitesse. Revenu à la Terre ayant vieilli de deux ans, il sortira de son arche et trouvera notre globe vieilli de deux cents ans si sa vitesse est restée dans l’intervalle inférieure d’un vingt-millième seulement à la vitesse de la lumière. Les faits expérimentaux les plus sûrement établis de la physique nous permettent d’affirmer qu’il en serait bien ainsi. (...) Le calcul montre ainsi que chacun d’eux verra vivre l’autre deux cents fois plus lentement qu’à l’ordinaire. Pendant l’année que durera pour lui ce mouvement d’éloignement, l’explorateur ne recevra de la Terre des nouvelles des deux premiers jours après son départ ; pendant cette année il aura vu la Terre accomplir les gestes de deux jours. (...) Pendant le retour les conditions seront inversées : chacun d’eux verra vivre l’autre d’une vie singulièrement accélérée, deux cents fois plus rapide qu’à l’ordinaire, et pendant l’année que durera pour lui le retour, l’explorateur verra la Terre accomplir les gestes de deux siècles : on conçoit ainsi qu’il la trouve au retour vieillie de deux cents ans. Il la verra d’ailleurs pendant cette période par l’intermédiaire d’ondes qui pour lui seront lumineuses mais qui pour elle appartiendront à l’extrême infra-rouge (,..) Pour qu’il continue à recevoir de la Terre des signaux hertziens, celle-ci devra, après les deux premiers jours et pendant les deux siècles qui suivront, employer une antenne de transmission deux cents fois plus longue que celle du voyageur, quarante mille fois plus longue que celle employée pendant les deux premiers jours. Pour comprendre la dissymétrie, il faut remarquer que la Terre mettra deux siècles à recevoir les signaux envoyés par l’explorateur pendant son mouvement d’éloignement qui pour lui dure un an : elle le verra vivre pendant ce temps dans son arche d’une vie deux cents fois ralentie ; elle lui verra accomplir les gestes d’un an. Pendant les deux siècles au cours desquels la Terre le verra ainsi s’éloigner, elle devra, pour recevoir les signaux hertziens émis par lui, employer une antenne deux cents fois plus longue que la sienne. À la fin de ces deux siècles parviendra à la Terre la nouvelle de la rencontre du boulet avec l’étoile qui marque le commencement du voyage de retour. L’arrivée du voyageur se produira deux jours après pendant lesquels la Terre le verra vivre deux cents fois plus vite qu’à l’ordinaire, lui verra accomplir les gestes d’une autre année pour le trouver au retour vieilli seulement de deux ans. Pendant ces deux dernières journées, pour recevoir des nouvelles de lui elle devra employer une antenne de réception deux cents fois plus courte que l’antenne du voyageur. Ainsi la dissymétrie tenant à ce que le voyageur seul a subi, au milieu de son voyage, une accélération qui change le sens de sa vitesse et le ramène au point de départ sur la Terre, se traduit par ce fait que le voyageur voit la Terre s’éloigner et se rapprocher de lui pendant des temps égaux chacun pour lui à un an, tandis que la Terre, prévenue de cette accélération seulement par l’arrivée d’ondes lumineuses, voit le voyageur s’éloigner d’elle pendant deux siècles et revenir pendant deux jours, pendant un temps quarante mille fois plus court. (Ont été laissés en citation tous les passages concernant l'écoulement du temps et omis ceux concernant les appareillages techniques nécessaires - antennes, énergie etc...L'entièreté du texte est lisible sur Wikisource))
/* Présentation */ simple ajout des extraits principaux du texte originel pour en finir avec toutes les fausses citations interprétations qui empêche le véritable débat d'avoir lieu. Inventant de fausses anecdotes est intolérable !
The problem consists in the use by Langevin of the gamma function of Einstein equal to 1 over (1 minus root v ² / c ²). At the beginning with a value 100
(v / c = 19999/20, 000 according to the quotation)
But Paul Langevin don't keep that value. Then Langevin uses a new value gamma = 200.
A new value that needs a new speed (v=.997497 c) With no explanation.
In the 2nd part of his presentation, this value gamma=200 becomes gamma power 2 = 40000. Langevin transforms 2 days in 1 year. Then transforms 1 year in 2 centuries. A strange calculation completely absent in Einstein 's writings about special relativity. An error calculation based on the absurd belief of an identical Doppler for the fast body and the slow body. Langevin did not understood that the Terran will see the Voyager 2 days before his return ... one year old . Langevin did not understood that the Terran ( in two days of earth time ) will see that the Voyager has aged a year in two days. There is no factor 40000 in this problem . Except in the Langevin's absurd delusions— Preceding unsigned comment added by Yanick Toutain (talk • contribs) 22:37, 5 February 2014 (UTC)Please sign your talk page messages with four tildes (~~~~). Thanks.Please don't add your personal views on sources to the article. See wp:unsourced, wp:reliable sources,wp:original research, wp:SYNTH. I have reverted your second edit too. - DVdm (talk) 22:54, 5 February 2014 (UTC)
DVdm : You are a liar when you accuse me with false accusations "Please don't add your personal views on sources to the article" The only thing I try now is to give the real data from the original text ! You are a liar because you call "personal view" the true data ! I've seen many of your lies in the old pages of debate ! Yanick Toutain(talk) 17:48, 9 July 2014 (UTC)
FASCISTS ERASE AGAIN REAL QUOTATION OF LANGEVIN'S REAL NUMBERS FROM HIS TEXT (BOLOGNE 1911) Twice yesterday, an anonymous Paradoctor reads Twin Paradox page (on Wikipedia) and - arrogating to itself a tyrannical law - deletes an entire paragraph that I had written with the intent to acquaint readers with the real text data original Paul Langevin. I had not removed the false information contained in the wrong section but simply added the same paragraph (allegedly explanatory) by inserting the true digital text data from 1911 written by Paul Langevin. (I left exactly the same text, but by entering the real figures of the text of Paul Lanvegin) This did not please the anonymous Paradoctor which twice allowed himself to erase the TRUE FIGURES THE ORIGINAL TEXT OF LANGEVIN. No doubt that the content of this text and the actual figures used by the author of the text (not talking about twins but a traveler) must really bother some people! It's been months that arrogant fascist censors are continually erase all my attempts to inform readers of the real data of the original text written by Paul Langevin in 1911.
ORIGINAL TEXT : Deux fois de suite hier, un anonyme Paradoctor lit la page Twin Paradox (sur Wikipédia) et - s'arrogeant un droit tyrannique - efface un paragraphe entier que j'avais rédigé dans l'intention de faire connaître aux lecteurs les véritables données du texte originel de Paul Langevin. Je n'avais pas supprimé les fausses données contenu dans un paragraphe erroné mais simplement ajouté le même paragraphe (prétendument explicatif) en y insérant les véritables données numériques du texte de 1911 écrit par Paul Langevin. (J'avais laissé exactement le même texte mais en inscrivant les vrais chiffres du texte de Paul Lanvegin) Cela ne plut pas à l'anonyme Paradoctor qui, par deux fois, s'autorisa à effacer les VERITABLES CHIFFRES DU TEXTE ORIGINAL DE LANGEVIN. Nul doute que le contenu de ce texte et les véritables chiffres utilisés par l'auteur du texte (qui ne parlait pas de jumeaux mais d'un Voyageur) doit vraiment déranger certaines personnes ! Cela fait des mois que des censeurs fascistes arrogants viennent continuellement effacer toutes mes tentatives pour informer les lecteurs des véritables données du texte originel écrit par Paul Langevin en 1911. Yanick Toutain (talk) 17:48, 9 July 2014 (UTC)

MARDI 8 JUILLET 2014

Twin Paradox on Wikipedia: I just write the real data of Paul Langevin in their "specific example" (Bologna 1911 The relativistic swindlers hardly ever give the real numbers)

Paul Langevin, a swindler !
Prophet of Einstein's
Church relativity

by Yanick Toutain

(...) "This remark provides the means
for any among us who wants to devote
two years of his life,
to find out what the Earth will be
 in two hundred years,
and to explore the future of the Earth,
by making in his life a jump ahead
 that will last two centuries
 for Earth and for him
 it will last two years,
(Real data of Langevin's text
Bologna 1911)

22h32
First fascist Paradoctor erase my text on Wikipedia

"don't see what this adds, if you want to reorganize the article, please state on the talk page how this would improve the article. (TW))"

When I give the REAL DATA... the anonymous relativist fascist Paradoctor "don't see what this adds" AND HE DESTROYS my text with the real data of Paul Langevin 
I just introduce the real data of Paul Langevin in an "specific example" of Wikipedia. One of countless examples with false data that were not in the original text.
I have not cleared their imaginary data but I just copy/paste their same paragraph below by inserting the actual data from the text of 1911.
The reader will soon see why these fascists are constantly erasing me whenever I try to turn the spotlight on the real text.

The worst of these "Wikipedia censors"  erased the real citations of Paul Langevin accusing me of making "original work" 

Twin Paradox on Wikipedia: I just write the real data of Paul Langevin in their "specific example" (Bologna 1911 The relativistic swindlers hardly ever give the real numbers)

Paul Langevin, a swindler !
Prophet of Einstein's
Church relativity

by Yanick Toutain

(...) "This remark provides the means
for any among us who wants to devote
two years of his life,
to find out what the Earth will be
 in two hundred years,
and to explore the future of the Earth,
by making in his life a jump ahead
 that will last two centuries
 for Earth and for him
 it will last two years,
(Real data of Langevin's text
Bologna 1911)

22h32
First fascist Paradoctor erase my text on Wikipedia

"don't see what this adds, if you want to reorganize the article, please state on the talk page how this would improve the article. (TW))"

When I give the REAL DATA... the anonymous relativist fascist Paradoctor "don't see what this adds" AND HE DESTROYS my text with the real data of Paul Langevin 
I just introduce the real data of Paul Langevin in an "specific example" of Wikipedia. One of countless examples with false data that were not in the original text.
I have not cleared their imaginary data but I just copy/paste their same paragraph below by inserting the actual data from the text of 1911.
The reader will soon see why these fascists are constantly erasing me whenever I try to turn the spotlight on the real text.
The worst of these "Wikipedia censors"  erased the real citations of Paul Langevin accusing me of making "original work"
Twin Paradox on Wikipedia: Je viens d'écrire les vrais données de Paul Langevin dans leur "exemple spécifique" (Bologne 1911 Les relativistes ne donnent quasiment jamais les vrais chiffres)
Je viens d'introduire les véritables données de Paul Langevin dans un "exemple" de Wikipédia. Un des innombrables exemples avec de fausses données qui ne se trouvaient pas dans le texte original.
Je n'ai pas effacé leur données imaginaires, j'ai juste ajouter le même paragraphe en dessous en insérant les véritables données du texte de 1911.
Le lecteur comprendra bientôt pourquoi ces fascistes ne cessent de m'effacer chaque fois que je tente de braquer les projecteurs sur le texte véritable.
Les pires de ces censeurs sur Wikipédia effacent les citations originales en m'accusant de faire du "travail original"

Specific example

Consider a space ship traveling from Earth to the nearest star system outside our solar system: a distanced = 4 light years away, at a speed v = 0.8c (i.e., 80 percent of the speed of light).

(To make the numbers easy, the ship is assumed to attain its full speed immediately upon departure—actually it would take close to a year accelerating at 1 g to get up to speed.)

The parties will observe the situation as follows:^[5][6] The Earth-based mission control reasons about the journey this way: the round trip will take t = 2d/v = 10 years in Earth time (i.e. everybody on Earth will be 10 years older when the ship returns). The amount of time as measured on the ship's clocks and the aging of the travelers during their trip will be reduced by the factor , the reciprocal of the Lorentz factor. In this case ε = 0.6 and the travelers will have aged only 0.6 × 10 = 6 years when they return.

The ship's crew members also calculate the particulars of their trip from their perspective. They know that the distant star system and the Earth are moving relative to the ship at speed v during the trip. In their rest frame the distance between the Earth and the star system is εd = 0.6d = 2.4 light years (length contraction), for both the outward and return journeys. Each half of the journey takes 2.4/v = 3 years, and the round trip takes2 × 3 = 6 years. Their calculations show that they will arrive home having aged 6 years. The travelers' final calculation is in complete agreement with the calculations of those on Earth, though they experience the trip quite differently from those who stay at home.

If twins are born on the day the ship leaves, and one goes on the journey while the other stays on Earth, they will meet again when the traveler is 6 years old and the stay-at-home twin is 10 years old. The calculation illustrates the usage of the phenomenon of length contraction and the experimentally verified phenomenon of time dilation to describe and calculate consequences and predictions of Einstein's special theory of relativity.

Specific example with Paul Langevin's data

In the original text of Paul Langevin (L’Évolution de l’espace et du temps)Translation:The Evolution of Space and Time other data were used : The star - seen at 100 light-years by the Terran at rest - is observed by the "Traveler" (when he begins his journey) at a distance of 1 light year. And his speed is less than twenty-thousandth the velocity of light.(19,999/20,000 c) Here is the presentation of the same text as above but with the original data of the author.

Consider a space ship traveling from Earth to the nearest star system outside our solar system: a distanced = 100 light years away, at a speed v = 0.99995c (i.e., 19,999/20,000 of the speed of light).

(To make the numbers easy, the ship is assumed to attain its full speed immediately upon departure—actually it would take close to a year accelerating at 1 g to get up to speed.)

The parties will observe the situation as follows:

The Earth-based mission control reasons about the journey this way: the round trip will take t = 2d/v = 200 years in Earth time (i.e. everybody on Earth will be 200 years older when the ship returns). The amount of time as measured on the ship's clocks and the aging of the travelers during their trip will be multiplied by the factor, equal to the Lorentz factor. In this case γ = 100 and the Langevin's Traveler will have aged only 200 / 100 = 2 years when he returns.

The ship's crew members also calculate the particulars of their trip from their perspective. They know that the distant star system and the Earth are moving relative to the ship at speed v during the trip. In their rest frame the distance between the Earth and the star system is d/γ = d/100 = 0,9999875 light year (length contraction), for both the outward and return journeys. Each half of the journey takes 0,9999875/v = 1 year, and the round trip takes2 × 1 = 2 years. Their calculations show that they will arrive home having aged 2 years. The travelers' final calculation is in complete agreement with the calculations of those on Earth, though they experience the trip quite differently from those who stay at home.

If twins are born on the day the ship leaves, and one goes on the journey while the other stays on Earth, they will meet again when the traveler is 2 years old and the stay-at-home twin is 200 years old. The calculation illustrates the usage of the phenomenon of length contraction and the experimentally verified phenomenon of time dilation to describe and calculate consequences and predictions of Einstein's special theory of relativity.

Translation:The Evolution of Space and Time

The Evolution of Space and Time (1911) by Paul Langevin, translated from French by Wikisource

related portals: Relativity. In French: L’Évolution de l’espace et du temps, Scientia 10: 31–54

The Evolution of Space and Time

(...) "This remark provides the means for any among us who wants to devote two years of his life, to find out what the Earth will be in two hundred years, and to explore the future of the Earth, by making in his life a jump ahead that will last two centuries for Earth and for him it will last two years, but without hope of return, without possibility of coming to inform us of the result of his voyage, since any attempt of the same kind could only transport him increasingly further.
For this it is sufficient that our traveler consents to be locked in a projectile that would be launched from Earth with a velocity sufficiently close to that of light but lower, which is physically possible, while arranging an encounter with, for example, a star that happens after one year of the traveler's life, and which sends him back to Earth with the same velocity. Returned to Earth he has aged two years, then he leaves his ark and finds our world two hundred years older, if his velocity remained in the range of only one twenty-thousandth less than the velocity of light. The most established experimental facts of physics allow us to assert that this would actually be so."

Fascism on Wikipedia : Quotations of Langevin's Twins are destroyed called "original research"

CENSURE FASCISTE ! ILS EFFACENT LES CITATIONS, le LIEN VERS LES SOURCES ET OSENT ECRIRE !
THEY DESTROYED THE QUOTATIONS, THE LINKS TO THE FRENCH SOURCES AND SAID :

Original research[modifier] Welcome to Wikipedia. We welcome and appreciate your contributions, including your edits to Twin paradox, but we cannot accept original research. Original research also encompasses combining published sources in a way to imply something that none of them explicitly say. Please be prepared to cite a reliable source for all of your contributions. Thank you. - DVdm (talk) 21:57, 5 February 2014 (UTC)
 Please do not add original research or novel syntheses of published material to articles as you apparently did toTwin paradox. Please cite a reliable source for all of your contributions. Thank you. - DVdm (talk) 22:47, 5 February 2014 (UTC)

La lecture du véritable texte de de Langevin permettra aux lecteurs curieux de passer outre les milliers de présentations tronquées et fausses du véritable problème originel :

Page:Scientia - Vol. X.djvu/58

extraits du texte originel de Paul Langevin :
"Il suffirait pour cela que notre voyageur consente à s’enfermer dans un projectile que la Terre lancerait avec une vitesse suffisamment voisine de celle de la lumière, quoique inférieure, ce qui est physiquement possible, en s’arrangeant pour qu’une rencontre, avec une étoile par exemple, se produise au bout d’une année de la vie du voyageur et le renvoie vers la Terre avec la même vitesse. Revenu à la Terre ayant vieilli de deux ans, il sortira de son arche et trouvera notre globe vieilli de deux cents ans si sa vitesse est restée dans l’intervalle inférieure d’un vingt-millième seulement à la vitesse de la lumière. Les faits expérimentaux les plus sûrement établis de la physique nous permettent d’affirmer qu’il en serait bien ainsi. (...)
Le calcul montre ainsi que chacun d’eux verra vivre l’autre deux cents fois plus lentement qu’à l’ordinaire. Pendant l’année que durera pour lui ce mouvement d’éloignement, l’explorateur ne recevra de la Terre des nouvelles des deux premiers jours après son départ ; pendant cette année il aura vu la Terre accomplir les gestes de deux jours. (...)
Pendant le retour les conditions seront inversées : chacun d’eux verra vivre l’autre d’une vie singulièrement accélérée, deux cents fois plus rapide qu’à l’ordinaire, et pendant l’année que durera pour lui le retour, l’explorateur verra la Terre accomplir les gestes de deux siècles : on conçoit ainsi qu’il la trouve au retour vieillie de deux cents ans. Il la verra d’ailleurs pendant cette période par l’intermédiaire d’ondes qui pour lui seront lumineuses mais qui pour elle appartiendront à l’extrême infra-rouge (,..) Pour qu’il continue à recevoir de la Terre des signaux hertziens, celle-ci devra, après les deux premiers jours et pendant les deux siècles qui suivront, employer une antenne de transmission deux cents fois plus longue que celle du voyageur, quarante mille fois plus longue que celle employée pendant les deux premiers jours.
Pour comprendre la dissymétrie, il faut remarquer que la Terre mettra deux siècles à recevoir les signaux envoyés par l’explorateur pendant son mouvement d’éloignement qui pour lui dure un an : elle le verra vivre pendant ce temps dans son arche d’une vie deux cents fois ralentie ; elle lui verra accomplir les gestes d’un an. Pendant les deux siècles au cours desquels la Terre le verra ainsi s’éloigner, elle devra, pour recevoir les signaux hertziens émis par lui, employer une antenne deux cents fois plus longue que la sienne. À la fin de ces deux siècles parviendra à la Terre la nouvelle de la rencontre du boulet avec l’étoile qui marque le commencement du voyage de retour. L’arrivée du voyageur se produira deux jours après pendant lesquels la Terre le verra vivre deux cents fois plus vite qu’à l’ordinaire, lui verra accomplir les gestes d’une autre année pour le trouver au retour vieilli seulement de deux ans. Pendant ces deux dernières journées, pour recevoir des nouvelles de lui elle devra employer une antenne de réception deux cents fois plus courte que l’antenne du voyageur.
Ainsi la dissymétrie tenant à ce que le voyageur seul a subi, au milieu de son voyage, une accélération qui change le sens de sa vitesse et le ramène au point de départ sur la Terre, se traduit par ce fait que le voyageur voit la Terre s’éloigner et se rapprocher de lui pendant des temps égaux chacun pour lui à un an, tandis que la Terre, prévenue de cette accélération seulement par l’arrivée d’ondes lumineuses, voit le voyageur s’éloigner d’elle pendant deux siècles et revenir pendant deux jours, pendant un temps quarante mille fois plus court.
(Ont été laissés en citation tous les passages concernant l'écoulement du temps et omis ceux concernant les appareillages techniques nécessaires - antennes, énergie etc...L'entièreté du texte est lisible sur Wikisource))



/* Présentation */ simple ajout des extraits principaux du texte originel pour en finir avec toutes les fausses citations interprétations qui empêche le véritable débat d'avoir lieu.
Inventant de fausses anecdotes est intolérable !



The problem consists in the use by Langevin of the gamma function of Einstein equal to 1 over (1 minus root v ² / c ²). At the beginning  with a value  100
 (v / c = 19999/20, 000 according to the quotation)
But Paul Langevin  don't keep that value.
Then Langevin uses a new value gamma = 200.

A new value that needs a new speed (v=.997497 c)
With no explanation.

In the 2nd part of his presentation, this value gamma=200 becomes gamma power 2 = 40000.
Langevin transforms 2 days in  1 year. Then transforms 1 year in 2 centuries.
A strange calculation completely absent in Einstein 's writings about special relativity.
An error calculation based on the absurd belief of an identical Doppler for the fast body and the slow body.
Langevin did not understood that the Terran will see the Voyager 2 days before his return ... one year old .
Langevin did not understood that the Terran ( in two days of earth time ) will see that the Voyager has aged a year in two days.
There is no factor 40000 in this problem  . Except in the  Langevin's absurd delusions