"The Lorentz Transformation for Velocity"
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Notron - 26 Jul 2005 15:16 GMT "The Lorentz Transformation for Velocity"
"Great spirits have always encountered violent oppositions from mediocre minds." - A. Einstein
It is recognized that Special Relativity provides the Lorentz Transformations for Length and Time and Mass between reference frames having a relative velocity. What is too often not recognized that, in so doing, it provides the transformations for all other physical quantities! These remaining transformations may be determined by applying the conventional Lorentz Transformations to accepted physical equations.
Since a velocity is equal to a length divided by the time required to traverse that length, the Lorentz Transformation for Velocity must equal the Lorentz Transformation for Length [1/(1-V^2/C^2)^0.5] divided by the Lorentz Transformation for Time [(1-V^2/C^2)^0.5]. The Lorentz Transformation for Velocity is therefore equal to 1/(1-V^2/C^2). (As incredible as it may seem, the writer has received a communication from an individual who asserts that a Lorentz Transformation for Velocity cannot be determined by dividing the Lorentz Transformation for Length divided by the Lorentz Transformation for Time even though velocity is defined as length divided by time! I suspect that this individual is a PhD who has a vested interest in maintaining the intellectual status quo. If he is a physicist he is in the wrong line of work, I understand that Walmart is hiring.)
This transformation yields a conclusion which is in conflict with the current understanding of Special Relativity. Present dogma asserts that the velocity of light is the same in all velocity reference frames. If one considers two reference frames, A and B, moving at a relativity velocity V with respect to each other, one finds that an observer in A measures the velocity of light in his own reference frame as its conventional value of C and the velocity of light in B as having been reduced by the Lorentz Transformation for Velocity. Similarly, an observer in B measures the velocity of light in his own reference frame as C and the velocity of light in A as having been reduced by the Lorentz Transformation for velocity. While superficially this may seem to be a contradiction, the difficulty vanishes when one factors in the effects of the limit on the velocity of information transfer imposed by the velocity of light.
We are forced to accept the conclusion, however, that the velocity of light changes as a result of a change in velocity and that this change in velocity is concealed by a change in the size of the units of measurement for velocity (length/time) making it appear that the velocity of light is the same in both reference frames. In terms of unchanging units of measurement, the velocity of light does differ between reference frames which differ in velocity, it only appears to be unchanged when it is measured within each reference frame. It may be stated, therefore, that Special Relativity requires that the velocity of light be a "constant" but cannot be constant between reference frames having a relative velocity. This conclusion is consistent with the Lorentz Transformation Aether Theory which asserts that our velocity with respect to the Aether is indeterminate.
However, one may derive more information from Special Relativity. Consider two velocity reference frames, for example Earth and Mars. A rocket is located on Earth and three identical clocks are in use. One clock is locate on Earth, one is located in the rocket, and the third clock is located on Mars. The observer on Earth and the observer in the rocket report that their clocks run at the same speed and that the clock on Mars runs slower due to the relative velocity between the two locations. The observer on Mars reports that the clocks on the Earth and on the rocket run slower than his clock.
After the readings have been taken, the rocket takes off and travels to Mars and stops there. The observer on Earth notes that the speed of the clock on the rocket has slowed to the speed of the clock on Mars while the observer on Mars notes that the speed of the clock on the rocket has increased to match the speed of his own clock which is faster than the speed of the clock on the Earth. The observer on the rocket does not notice a change in the speed of his clock, but since he is familiar with Special Relativity knows that the speed of his clock has changed as a result of his observed change in velocity but that he cannot observe that change in the speed of his clock. He observes that the change in velocity of his rocket has occurred and that the speed of the clock on the Earth has appeared to slow and the speed of the clock on Mars has appeared to increase. This observation does not bother him or the other observers since all are familiar with Special Relativity.
Consider what this thought experiment has shown. It has shown that not only is it impossible to measure our velocity with respect to the Aether and hence it is impossible to assert that the Aether does not exist, It has also shown that Special Relativity requires that there be an absolute velocity reference frame (i.e.- the Aether). In the Rocket Experiment all three observers report that the speed of the clock has changed as a result of the change in the rockets velocity. The observer on Earth asserts that the speed of the clock on the rocket has slowed, the observer on Mars asserts that the speed of the clock on the rocket has increased, and the observer on the rocket asserts that the speed of his clock has changed but that he cannot observe that change. There is one item of information that all three observers agree on. The speed of the clock on the rocket changed as a result of the change in the rocket's velocity.
One event, the change in speed of the rocket, has caused the speed of the clock on the rocket to change. Since there was only one causal event, there can only be one result, the speed of the clock must actually increase or decrease, it cannot do both! In order for that conclusion to be true, there must be an absolute reference frame for velocity. The classical Aether, which cannot be proven not to exist, must exist!
Two objections have been raised to this argument. The first is that it involves acceleration and Special relativity does not include the effect of acceleration. This argument is meaningless since no acceleration occurred when observations were being made. The second argument involves the speed of communication between the Earth and Mars. This is a foolish argument since the observations were all made prior to the start and after the finish of the experiment. The observers could have communicated by pony express without affecting the conclusions. NOY ONLY DID SPECIAL RELATIVITY NOT ELIMINATE THE CLASSICAL AETHER, IT REQUIRES THAT THE CLASSICAL AETHER EXIST!
The source material for this posting may be found in http://einsteinhoax/hoax.htm ("The Einstein Hoax" {1997}); http://einsteinhoax/gravity.htm; ("Gravity" {1987}); and http://einsteinhoax/relcor.htm ("Corrections to Special Relativity" {1997}). EVERYTHING WHICH WE ACCEPT AS TRUE MUST BE CONSISTENT WITH EVERYTHING ELSE WE HAVE ACCEPTED AS TRUE, IT MUST BE CONSISTENT WITH ALL OBSERVATIONS, AND IT MUST BE MATHEMATICALLY VIABLE. PRESENT TEACHINGS DO NOT ALWAYS MEET THIS REQUIREMENT. THE WORLD IS ENTITLED TO A HIGHER STANDARD OF WORKMANSHIP FROM THOSE IT HAS GRANTED WORLD CLASS STATUS.
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vergon_enterprises@highstream.net - 28 Jul 2005 01:25 GMT THE DUAL VELOCITIES OF SPECIAL RELATIVITY
By Vertner Vergon
At the outset it would be well to quote Nick Herbert from his book, Quantum Reality (highly recommended). In one sentence he put forth the key that everyone considering relativity should constantly keep in mind for it would prevent the most common misconceptions in understanding and applying the theory. The sentence:
(emphasis added)
"In Einstein's new vision, MEASUREMENTS of length and time are not absolute but depend on the observers velocity."
How adroit and succinct. Notice Herbert did not say 'length and time are not absolute'-but the "measurements of length and time are not absolute".
The meaning clearly is that mass (for example) is velocity invariant- but the measurements are not. Of course that leaves us with the problem of ascertaining the cause of the apparently false measurement which is somehow correct. (Einstein's side-stepping solution was to recommend that the variation in mass be avoided and momentum used instead. However, that only shifted the problem.)
The limiting velocity of light is c. Thus the limit of velocity for anything observed utilizing light is c.
Light causes two kinds of aberrations. One, angular displacement -- two, longitudinal displacement ( more exactly, the component of radial velocity displacement).
The first is caused by refraction -- the fish in the pond isn't where we see it. The image suffers angular displacement.
The second is caused by the constant -- and limited -- velocity, c. The observed velocity can be no faster than the messenger. In observing a rod (longitudinal length) it seems to contract. This is our longitudinal displacement.
It should be stressed that the rod, in its own coordinate system does not contract (proper length) but the "observation" of it does.
Next, let us consider that the length of a rod is also a distance - and distance per unit of time is velocity.
Thus we can say that if the observation of length contracts so does the observation of velocity.
It should be noted that as we have two lengths - the proper and the observed, we also have two velocities, the proper and the observed.
The proper velocity is the Newtonian velocity, and the observed velocity is the relativistic velocity.
The result is -- as the Newtonian velocity goes to infinity, the observed velocity goes to c.
The conversion utilizes the Lorentz transformation (R) such that V x R = v (where V is Newtonian velocity and v is relativistic.)
R can be obtained from V by (where c = 1) sqrt[ 1/ (V^2 + 1) ]
It will be noticed that the parameters (kinetic energy, momentum, and transit times) of the Newtonian velocities are found in the company of their corresponding relativistic velocities. That is to say that whereas the velocity of light will cause an aberration of length (velocity) it does not affect the parameters of kinetic energy, momentum, and proper transit times. Thus they are observed in the presence of the aberrated (observed) velocity.
The knowledge of this leads to a clarification of relativistic mass and
superluminal velocities.
The latter, of course, are the Newtonian velocities. It will be found that a Newtonian velocity of 1 (where c = 1) translates to a relativistic velocity of .7071 c (by V x R = v). Thus, every Newtonian velocity greater than .7071 c is a superluminal velocity on the Newtonian scale.
On the relativistic scale there are no superluminal velocities.
As to relativistic mass, it was derived from relativistic momentum:
P = mv/R Because v has the limit c, the assumption has always been that that R applied to m - thus m tended toward infinity as R tended toward zero. Thus, relativistic mass.
However, the difficulties this created waved a red flag that shouted this was not so.
The answer, of course, lies in properly applying R to v. Thus, as R tends to zero, v tends to infinity - which is infinity on the Newtonian scale. (R/v = V)
So the proper writing would be p = mV. However, that is not to say that p = mv/R is not correct.
Bill Hobba - 28 Jul 2005 02:01 GMT > THE DUAL VELOCITIES OF SPECIAL RELATIVITY > [quoted text clipped - 21 lines] > that the variation in mass be avoided and momentum used instead. > However, that only shifted the problem.) Nothing in what Herbert said allows you to infer the measurements are false.
> The limiting velocity of light is c. Thus the limit of velocity for > anything observed utilizing light is c. [quoted text clipped - 13 lines] > It should be stressed that the rod, in its own coordinate system does > not contract (proper length) but the "observation" of it does. What is actually observed is quite complex - it is its measurement that contracts - not what is observed.
Rest of semantically motivated misconceptions mercifully snipped.
Bill
vergon_enterprises@highstream.net - 28 Jul 2005 19:28 GMT I didn't say the measurements are false. They ARE different from the proper quantites, however -- or don't you think so?
As to your second sentence, the observations ARE the measurements. So what's your point?
Beyond that I see you have no criticisms. I think that's because you do not have the cognitive ability
Pity.
Bill Hobba - 28 Jul 2005 23:13 GMT > I didn't say the measurements are false. They ARE different from the > proper quantites, however -- or don't you think so? No - they a measurements as well - simply measurements that are invariant.
> As to your second sentence, the observations ARE the measurements. So > what's your point? This is getting into real semantic territory but observations in the context of relativity are usually meant what we would see say with our eyes. It is well known that analyzing observing (ie watching it) a fast moving rod is a rather difficult problem that was not solved until many years after SR was developed and what actually happens is rather surprising http://modeling.asu.edu/R&E/SecretsGenius.pdf
'This is called the "Lorentz contraction," because Lorentz wrote down the formula before Einstein. The very name suggests the confusion of more than a few physicists who failed to realize that the respective meanings given to the formula by Lorentz and Einstein were incompatible. For Lorentz the formula described a physical contraction of the rod in the direction of its motion, whereas for Einstein it merely related measurements performed in different ways. However, the scandal was due to physicists who had that much straight. They told everybody that a physical object would actually appear to shrink in the direction of its motion. In doing so they confounded the elementary distinction between " measurement of length" and "visual appearance." This blunder persisted until it was corrected in 1959 by a graduate student James Terrell (ibid.). He pointed out that the light in an instantaneous visual image must have left different parts of the object at different times, because they are different distances away. He showed that when this was taken into account, to a first approximation it had the effect of cancelling the Lorentz contraction so the moving object did not appear distorted.'
> Beyond that I see you have no criticisms. I think that's because you do > not have the cognitive ability > > Pity. Well Vernon your ideas have been analyzed many times on sci.physics.relativity and found wanting. A simple goggle search will provide the interested reader with all the information they require to form an opinion about you.
Bill
Harry - 29 Jul 2005 09:56 GMT > > I didn't say the measurements are false. They ARE different from the > > proper quantites, however -- or don't you think so? [quoted text clipped - 18 lines] > motion, whereas for Einstein it merely related measurements performed in > different ways. As that may easily be misunderstood:
- Lorentz described a physical contraction of the rod in the direction of its motion *wrt the ether*, while Poincare and Einstein showed that the same equation is valid to describe observations from any inertial reference frame. Lorentz agreed with that when it was pointed out to him, there is no incompatibility in that sense.
- Also, different people understand different things by "physical", and perhaps everything in nature was "merely measurements" for Einstein (think of the movie "Matrix")? Einstein 1905: "Physical Meaning of the Equations Obtained in Respect to Moving Rigid Bodies and Moving Clocks [...] A rigid body which, measured in a state of rest, has the form of a sphere, therefore has in a state of motion--viewed from the stationary system--the form of an ellipsoid "
Cheers, Harald
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