Originally posted by Templares
On JPL software etc. etc.http://www.aliceinphysics.com/introduce/ion.pdf . Tran's JPL lies are on page 5. Still adamant even though youre caught red-handed of lying. Throw enough mud and some of them might stick.
>> Trans doesn't lie. Trans believes in free scientific debate, which must be based on a commitment to truthfulness on the part of all participants, in order to be fruitful. Now it is true that I regret one thing in this debate- having accused you of lying, on this issue, because it has subsequently become clear to me that you simply do not understand what you are reading here.
It is not the first time, and I have said many times that an honest mistake is nothing to be ashamed of. I should not have accused you of lying. I apologize for that. I am now going to show you why this issue is sufficiently complicated that accusations of lying should not have been made, until it was absolutely certain that both parties understood what the other was in fact saying, and both parties understood the excruciatingly complex issues involved in the paper itself.
Since I was the first one to make such an accusation, it falls to me to accept it coming from you in return.
We are highly likely to continue to go for each other's throat in this debate- and I wouldn't change that for anything, I have enjoyed it immensely.
But I was wrong to accuse you of lying on this question.
To business:
First, you quote from the Ruyong/Wang study. Because it is essential to be absolutely precise in this, I am now going to post the entire, lengthy section of the report which will provide the complete context of our disagreement, and also the means for resolving it. The issue is, needless to say, of absolutely crucial importance not only to our debate, but to "Standard Theory" itself, which is based on the assumption that the speed of light is a constant in all reference frames. The paper we will now be citing, provides utterly amazing hard scientific evidence that the speed of light is NOT a constant in all reference frames (or, to put it even more bluntly, that e DOES NOT equal mc^2, since "c" is not a constant after all).
Herewith, the entire context from the paper examining the issue:
http://www.aliceinphysics.com/introduce/ion.pdf
GPS, Sagnac Effect, and Ashby Claims
At this point we want to consider a number of claims that Ashby [4] has recently made in regard to GPS and the Sagnac effect. We address three specific comments which Ashby made and respond to each below.
(1) Ashby claimed, "The fundamental principle on which GPS navigation works is an apparently simple application of the second postulate of special relativity—namely, the constancy of c, the speed of light." This claim has already been addressed above. Clearly, the GPS range equation does not depend on the constancy of the speed of light relative to the receiver, which is the SRT claim. Yes, the GPS equation depends on the constancy of the speed of light relative to the earth-centered inertial (ECI) nonrotating frame—but that is contrary to SRT. A receiver moving in the ECI frame does not see an isotropic light speed of c ."
>>First, note that the authors assure us that the equation used in GPS (no matter which software one might employ) directly contradicts the basic premise of Relativity, by showing that a moving receiver in the ECI frame (Earth Centered Inertial—that is, a mathematical coordinate system where the universe revolves around the earth once every twenty four hours, while the Earth revolves around the Sun once every year.) does not see a constant lightspeed ("c"😉.
"(2) Ashby's second claim is: 'Observers in the nonrotating ECI inertial frame would not see a Sagnac effect. Instead, they would see that receivers are moving while a signal is propagating.' This claim is a bit humorous. It would have been nice if this were the last claim in contention—since Ashby in effect concedes the argument here. Receiver motion during the transit time is the Sagnac effect . The only way that Ashby can claim that the Sagnac effect is not seen by a receiver in the ECI frame while admitting that the receiver moves during the transit time is to define the effect of a moving receiver differently depending upon the description of the receivers position—a bit of a sophistry."
"(3) The final claim by Ashby, which we contest, is: 'Of course if one works entirely in the nonrotating (sic) ECI frame there is no Sagnac effect.' The only way this claim can be true is if we adopt the definition sophistry of the prior claim"
>>Now we get to the meat of the question:
"But we have even more convincing data that Ashby's claim is false. NavCom Technology, Inc. has licensed software developed by the Jet Propulsion Lab (JPL) which, because of historical reasons, does the entire computation in the ECI frame ."
>>Sleepy's contention is that I have lied, because he says "the entire computation" done in the ECI frame, applies only to the GPS calculation, and not to the deep space probes we will see discussed in a moment. At first I considered this to be an attempt on his part to obfuscate and cloud the issue, but that really isn't necessarily the case. For now, just notice that NavCom has licensed software from JPL, and this software does "the entire computation in the ECI frame".
"Because of some discrepancies between our standard earth-centered earth-fixed solution results and the JPL results,"
>> Very interestingly, we learn here that the standard frame for GPS computation is not the ECI, which JPL uses "for historical reasons", but is instead the ECEF (Earth Centered Earth Fixed) frame. The ECEF frame is identical to the geocentric universe I have been defending in this debate: the Earth neither rotates, nor orbits the Sun, in the ECEF frame.
"we investigated the input parameters to the solution very carefully. The measured and theoretical ranges computed in the two different frames agreed precisely, indicating that the Sagnac correction had been applied in each frame."
>>Note well: In both the standard ECEF and the JPL ECI software, the speed of light is NOT a constant in all reference frames, as Relativity requires, but is instead constant ONLY with regard to the chosen FRAME ( in both the ECI and ECEF coordinate systems, that is, of course, Earth ).
" The Fundamental Question
As the discussion of the Sagnac effect indicates the fundamental question regarding the speed of light is the following: Is the speed of light constant with respect to
the observer (receiver) or is it constant with respect to the chosen inertial (isotropic light speed) ECI frame ?"
>>Note well. The authors specify the ECI frame, because that is the frame which the JPL software which they have licensed for this test uses.
"Clearly the GPS range equation indicates the speed of light is constant with respect to the chosen frame. The receiver position in the range equation is its position at the time the signal is received. This means that the pattern of motion of the receiver during the signal transit time is completely immaterial. The receiver could have moved in a huge series of loops during the transit time. It would not matter— it is the receivers position at the time of reception of the signal which matters ."
>>Please remember the above quote,"it is the receiver's position at the time of reception that matters" because it will resolve the entire dispute between Sleepy and myself presently. Now we see the authors shift their focus from the GPS equation (common to both the ECI and ECEF frames) to another set of equations, this time with respect to another frame, the solar system barycenter. Keep in mind again the fact that " it is the receivers position at the time of reception
of the signal which matters " in ALL frames.