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EINSTEIN'S ASYMMETRIC TIME DILATION



 
 
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  #1  
Old August 6th 15, 08:28 PM posted to sci.astro
Pentcho Valev
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Default EINSTEIN'S ASYMMETRIC TIME DILATION

http://www.bartleby.com/173/12.html
Albert Einstein: "Let us now consider a seconds-clock which is permanently situated at the origin (x' = 0) of K'. (...) As judged from K, the clock is moving with the velocity v; as judged from this reference-body, the time which elapses between two strokes of the clock is not one second, but (....) a somewhat larger time. As a consequence of its motion the clock goes more slowly than when at rest."

That is,

(A) as judged from the stationary system K, the moving clock goes more slowly than the stationary clock.

This is a valid conclusion from Einstein's 1905 postulates (no matter whether they are true or false). However time dilation is symmetric so there is another valid conclusion:

(B) As judged from the moving system K', the stationary clock goes more slowly than the moving clock.

The validly deduced symmetry can easily and imperceptibly be broken by omitting the phrase "as judged from the ... system ...". So time dilation becomes asymmetric and two invalid conclusions can be obtained:

(A') The moving clock goes more slowly than the stationary clock.

(B') The stationary clock goes more slowly than the moving clock.

Either dishonesty or stupidity (or both) made Einstein advance (A') in 1905:

http://www.fourmilab.ch/etexts/einstein/specrel/www/
ON THE ECTRODYNAMICS OF MOVING BODIES, A. Einstein, 1905: "From this there ensues the following peculiar consequence. If at the points A and B of K there are stationary clocks which, viewed in the stationary system, are synchronous; and if the clock at A is moved with the velocity v along the line AB to B, then on its arrival at B the two clocks no longer synchronize, but the clock moved from A to B lags behind the other which has remained at B by tv^2/2c^2 (up to magnitudes of fourth and higher order), t being the time occupied in the journey from A to B."

An idiotic implication is that, since the moving clock goes slow, its possessor, e.g. the travelling twin, actually travels into the future.

Since then, by teaching Einstein's asymmetric time dilation plus the travel-into-the-future idiocy, Einsteiniana's hypnotists have been relentlessly brainwashing the gullible world and destroying human rationality:

http://www.newscientist.com/article/...elativity.html
John Gribbin: "Einstein's special theory of relativity tells us how the Universe looks to an observer moving at a steady speed. Because the speed of light is the same for all such observers, moving clocks run slow..."

https://www.youtube.com/watch?v=6yMiUq7W_xI
Brian Greene: "Time Travel is Possible (2:48) If you wanted to leapfrog into the future, if you wanted to see what the Earth would be like a million years from now, Einstein told us how to do that."

https://www.youtube.com/watch?v=-O8lBIcHre0
Brian Cox (03:56): "Time travel into the future is possible".

http://www.bourbaphy.fr/damourtemps.pdf
Thibault Damour: "The paradigm of the special relativistic upheaval of the usual concept of time is the twin paradox. Let us emphasize that this striking example of time dilation proves that time travel (towards the future) is possible. As a gedanken experiment (if we neglect practicalities such as the technology needed for reaching velocities comparable to the velocity of light, the cost of the fuel and the capacity of the traveller to sustain high accelerations), it shows that a sentient being can jump, "within a minute" (of his experienced time) arbitrarily far in the future, say sixty million years ahead, and see, and be part of, what (will) happen then on Earth.. This is a clear way of realizing that the future "already exists" (as we can experience it "in a minute")."

https://www.youtube.com/watch?v=n2s1-RHuljo
"In this video lecture, Neil deGrasse Tyson, America's most noted astrophysicist, describes the Twins Paradox, a hypothetical scenario in which high-speed travel slows down the aging of one twin, while the other twin ages at a normal rate."

http://www.davidreneke.com/time-trav...rof-brian-cox/
"Time Travel Is Possible Says Prof Brian Cox (...) Traveling into the past is impossible. Possibly. The idea of mono-directional time travel is a slap in the face for most science fiction storylines, but fortunately for Marty McFly there's no risk of accidentally sleeping with his mother from 1955 in this scenario. However, zooming around on hovering skateboards in the future is totally plausible. (...) "Can you build a time machine?" said Cox. "The answer is yes." Assuming we could build a spaceship that will accelerate an astronaut close to the speed of light, only for them to return a few hours later (in the astronaut's time frame), through a quirk of relativity it's possible that thousands of years would have passed on Earth. Therefore, the superfast spaceship will have become a time machine! Want to go further into the future? No problem! Fly the spaceship even faster."

http://abcnews.go.com/Entertainment/...ry?id=32191481
"ABC News spoke to author, astrophysicist, cosmologist and basically one of the smartest men on the planet, Dr. Neil deGrasse Tyson... (...) ABC: Is time travel possible? Dr. Tyson: We have ways of moving into the future. That is to have time tick more slowly for you than others, who you return to later on. We've known that since 1905, Einstein's special theory of relativity, which gives the precise prescription for how time would slow down for you if you are set into motion."

Referring to the gullible world, Einstein once said: "I am sure that it is the mystery of non-understanding that appeals to them...it impresses them, it has the colour and the appeal of the mysterious":

http://plus.maths.org/issue37/featur...ein/index.html
John Barrow FRS: "Einstein restored faith in the unintelligibility of science. Everyone knew that Einstein had done something important in 1905 (and again in 1915) but almost nobody could tell you exactly what it was. When Einstein was interviewed for a Dutch newspaper in 1921, he attributed his mass appeal to the mystery of his work for the ordinary person: "Does it make a silly impression on me, here and yonder, about my theories of which they cannot understand a word? I think it is funny and also interesting to observe. I am sure that it is the mystery of non-understanding that appeals to them...it impresses them, it has the colour and the appeal of the mysterious." Relativity was a fashionable notion. It promised to sweep away old absolutist notions and refurbish science with modern ideas. In art and literature too, revolutionary changes were doing away with old conventions and standards. All things were being made new. Einstein's relativity suited the mood. Nobody got very excited about Einstein's brownian motion or his photoelectric effect but relativity promised to turn the world inside out."

Pentcho Valev
  #2  
Old August 7th 15, 08:01 AM posted to sci.astro
Pentcho Valev
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Posts: 8,078
Default EINSTEIN'S ASYMMETRIC TIME DILATION

Einstein's asymmetric time dilation taught by Brian Greene and Brian Cox, two of the silliest high priests in Einsteiniana (only Max Tegmark and Michio Kaku are sillier than them):

https://www.youtube.com/watch?v=6yMiUq7W_xI
Brian Greene: Time Travel is Possible

https://www.youtube.com/watch?v=-O8lBIcHre0
Brian Cox (03:56): "Time travel into the future is possible."

Not so silly Einsteinians practice doublethink in teaching the twin paradox: The youthfulness of the travelling twin is due to the turn-around acceleration, on the one hand, and is not due to the turn-around acceleration, on the other:

http://en.wikipedia.org/wiki/Twin_paradox
"In other words, neither Einstein nor Langevin saw the story of the twins as constituting a challenge to the self-consistency of relativistic physics.. (...) Although some texts assign a crucial role to the acceleration of the travelling twin at the time of the turnaround, others note that the effect also arises if one imagines separate outward-going and inward-coming travellers, who pass each other and synchronize their clocks at the point corresponding to "turnaround" of a single traveller. In this version, acceleration plays no direct role; "the issue is how long the world-lines are, not how bent". (...) During the turnaround, the traveling twin is in an accelerated reference frame. According to the equivalence principle, the traveling twin may analyze the turnaround phase as if the stay-at-home twin were freely falling in a gravitational field and as if the traveling twin were stationary. A 1918 paper by Einstein presents a conceptual sketch of the idea."

http://en.wikisource.org/wiki/Dialog...f_rela tivity
Dialog about Objections against the Theory of Relativity, 1918, Albert Einstein: "During the partial processes 2 and 4 the clock U1, going at a velocity v, runs indeed at a slower pace than the resting clock U2. However, this is more than compensated by a faster pace of U1 during partial process 3. According to the general theory of relativity, a clock will go faster the higher the gravitational potential of the location where it is located, and during partial process 3 U2 happens to be located at a higher gravitational potential than U1. The calculation shows that this speeding ahead constitutes exactly twice as much as the lagging behind during the partial processes 2 and 4."

http://www.pitt.edu/~jdnorton/teachi...yon/index.html
John Norton: "Then, at the end of the outward leg, the traveler abruptly changes motion, accelerating sharply to adopt a new inertial motion directed back to earth. What comes now is the key part of the analysis. The effect of the change of motion is to alter completely the traveler's judgment of simultaneity. The traveler's hypersurfaces of simultaneity now flip up dramatically. Moments after the turn-around, when the travelers clock reads just after 2 days, the traveler will judge the stay-at-home twin's clock to read just after 7 days. That is, the traveler will judge the stay-at-home twin's clock to have jumped suddenly from reading 1 day to reading 7 days. This huge jump puts the stay-at-home twin's clock so far ahead of the traveler's that it is now possible for the stay-at-home twin's clock to be ahead of the travelers when they reunite."

http://www.fnal.gov/pub/today/archiv...lReadMore.html
Don Lincoln: "Some readers, probably including some of my doctoral-holding colleagues at Fermilab, will claim that the difference between the two twins is that one of the two has experienced an acceleration. (After all, that's how he slowed down and reversed direction.) However, the relativistic equations don't include that acceleration phase; they include just the coasting time at high velocity."

http://sciencechatforum.com/viewtopic.php?f=84&t=26847
Don Lincoln: "A common explanation of this paradox is that the travelling twin experienced acceleration to slow down and reverse velocity. While it is clearly true that a single person must experience this acceleration, you can show that the acceleration is not crucial. What is crucial is that the travelling twin experienced time in two reference frames, while the homebody experienced time in one. We can demonstrate this by a modification of the problem. In the modification, there is still a homebody and a person travelling to a distant star. The modification is that there is a third person even farther away than the distant star. This person travels at the same speed as the original traveler, but in the opposite direction. The third person's trajectory is timed so that both of them pass the distant star at the same time. As the two travelers pass, the Earthbound person reads the clock of the outbound traveler. He then adds the time he experiences travelling from the distant star to Earth to the duration experienced by the outbound person. The sum of these times is the transit time. Note that no acceleration occurs in this problem...just three people experiencing relative inertial motion."

http://www.damtp.cam.ac.uk/research/...tivity2010.pdf
Gary W. Gibbons FRS: "In other words, by simply staying at home Jack has aged relative to Jill. There is no paradox because the lives of the twins are not strictly symmetrical. This might lead one to suspect that the accelerations suffered by Jill might be responsible for the effect. However this is simply not plausible because using identical accelerating phases of her trip, she could have travelled twice as far. This would give twice the amount of time gained."

http://www.people.fas.harvard.edu/~djmorin/chap11.pdf
Introduction to Classical Mechanics With Problems and Solutions, David Morin, Cambridge University Press, Chapter 11, p. 14: "Example (Twin paradox): Twin A stays on the earth, while twin B flies quickly to a distant star and back. Show that B is younger than A when they meet up again. (...) For the entire outward and return parts of the trip, B does observe A's clock running slow, but enough strangeness occurs during the turning-around period to make A end up older. Note, however, that a discussion of acceleration is not required to quantitatively understand the paradox..."

http://ebooks.adelaide.edu.au/o/orwe...hapter2.9.html
"Doublethink means the power of holding two contradictory beliefs in one's mind simultaneously, and accepting both of them. The Party intellectual knows in which direction his memories must be altered; he therefore knows that he is playing tricks with reality; but by the exercise of doublethink he also satisfies himself that reality is not violated. The process has to be conscious, or it would not be carried out with sufficient precision, but it also has to be unconscious, or it would bring with it a feeling of falsity and hence of guilt. Doublethink lies at the very heart of Ingsoc, since the essential act of the Party is to use conscious deception while retaining the firmness of purpose that goes with complete honesty. To tell deliberate lies while genuinely believing in them, to forget any fact that has become inconvenient, and then, when it becomes necessary again, to draw it back from oblivion for just so long as it is needed, to deny the existence of objective reality and all the while to take account of the reality which one denies - all this is indispensably necessary. (...) It need hardly be said that the subtlest practitioners of doublethink are those who invented doublethink and know that it is a vast system of mental cheating. In our society, those who have the best knowledge of what is happening are also those who are furthest from seeing the world as it is. In general, the greater the understanding, the greater the delusion ; the more intelligent, the less sane.."

Pentcho Valev
  #3  
Old August 9th 15, 07:01 AM posted to sci.astro
Pentcho Valev
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Posts: 8,078
Default EINSTEIN'S ASYMMETRIC TIME DILATION

Einstein informs the gullible world that, ACCORDING TO THE LORENTZ TRANSFORMATION, inertial clocks run faster than non-inertial clocks:

http://www.bartleby.com/173/23.html
Albert Einstein: "An observer who is sitting eccentrically on the disc K' is sensible of a force which acts outwards in a radial direction... (...) The observer performs experiments on his circular disc with clocks and measuring-rods. In doing so, it is his intention to arrive at exact definitions for the signification of time- and space-data with reference to the circular disc K', these definitions being based on his observations. What will be his experience in this enterprise? To start with, he places one of two identically constructed clocks at the centre of the circular disc, and the other on the edge of the disc, so that they are at rest relative to it. We now ask ourselves whether both clocks go at the same rate from the standpoint of the non-rotating Galileian reference-body K. As judged from this body, the clock at the centre of the disc has no velocity, whereas the clock at the edge of the disc is in motion relative to K in consequence of the rotation.. According to a result obtained in Section XII, it follows that the latter clock goes at a rate permanently slower than that of the clock at the centre of the circular disc, i.e. as observed from K."

Einstein refers to Section XII but this Section does not contain any results explaining why the (inertial) clock at the centre of the rotating disc should run faster than the (non-inertial) clock placed on the edge of the disc. Rather, the results in Section XII are all based on the Lorentz transformation which predicts MUTUAL time dilation for two INTERTIAL clocks: either inertial clock (more precisely, the observer in this clock's system) sees the other inertial clock running SLOW by a factor of 1/gamma = sqrt(1-(v/c)^2). The Lorentz transformation does not predict anything about a system of two clocks one of which (in this case the one on the edge of the disc) is not inertial. Yet in the above text Einstein illegitimately claims that, ACCORDING TO THE LORENTZ TRANSFORMATION, the inertial K-clock (at the center of the disc) is running faster than the non-inertial K'-clock (on the edge of the disc) by a factor of gamma = 1/sqrt(1-(v/c)^2).

It is easy to see that the rotating disc scenario actually refutes Einstein's relativity. By increasing the perimeter of the disc while keeping the linear speed of the periphery constant, one can convert clocks fixed on the periphery into VIRTUALLY INERTIAL clocks (the "gravitational field" they experience is reduced to zero). Now, in accordance with the Lorentz transformation, the (virtually inertial) observer "sitting eccentrically" on the edge of the disc (the K'-observer) sees the clock at the center of the disc (more conveniently, another stationary clock close to the periphery, meeting moving clocks and being checked against them) run MORE SLOWLY than clocks moving with the periphery.

The valid conclusion is that the clock at the center runs both FASTER than clocks on the periphery (as observed from K) and SLOWER than clocks on the periphery (as observed from K'). We have reductio ad absurdum: the consequent (mutual time dilation) is absurd, therefore the antecedent (Einstein's 1905 constant-speed-of-light postulate) is false.

Pentcho Valev
 




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