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| Paul Langevin, a swindler ! Prophet of Einstein's Church relativity |
(...) "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)
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)
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 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.
, 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 |
| In French: L’Évolution de l’espace et du temps, Scientia 10: 31–54 |
(...) "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."
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