|
Ken Seto: Fumble upon Fumble upon Fumble upon Fumble. (28-Oct-2002) |
|
"Paul B. Andersen" > > "Paul B. Andersen" > > > > "Paul B. Andersen" > > > > > > "Paul B. Andersen" > > > > > > > > > > > > > > I have told you this before, Ken: > > > > > > > I am using the standard instrument for measurements like this: > > > > > > > a normal diffraction grating spectrometer. > > > > > > > In such a spectrometer the light is deflected by an angle a, > > > > > > > which is measured. > > > > > > > The wavelength is simply: lambda = d*sin(a) > > > > > > > where d is the grating spacing. > > > > > > > > > > > > The angle "a" is dependent on the difference in absolute motions and > > > > > > the distance of separation between the source and the observer. > > > > > > Therefore what you are measuring is not the wave length but rather you > > > > > > are measuring the light path length of the "lab wave length". If you > > > > > > consider the "lab wave length" as a rod R then the light path length > > > > > > of this rod obeys the Lorentz Transformation as follows: > > > > > > Light path length of rod R =gamma*(x+vt) > > > > > > > > > > > > > > > > > > Ken Seto > > > > > > > > > > You sure are a funny guy, Ken. :-) > > > > > One wouldn't expect it to be possible to utter so much > > > > > utter nonsense about such a simple instrument as a diffraction > > > > > grating spectrometer, but Ken can exceed any expectations. > > > > > Well done! :-) > > > > > > > > What I said is the same as what Einstein used to derive the > > > > concept of relativity of simultaneity---c+v and c-v. Except > > > > in real life there is only c-v. What this mean is that the > > > > light path length for a moving rod is the same in all > > > > directions--no matter whether it is moving toward or away > > > > from the light source. This is what gives the isotropy of > > > > the speed of light. > > > > BTW v is absolute motion. > > > > Ken Seto > > > > > > When you think Ken has uttered the ultimate stupidity, > > > he surpasses himself with an even bigger one. > > > Even better done, Ken! > > > > > > But what did you say a diffraction grating spectrometer measures? > > > My eyes were watering, so I couldn't see your answer properly. > > > In that haze I read something like "the light path length of > > > the lab wave length" and that this was the same as what Einstein > > > used to derive the concept of relativity of simultaneity. > > > But that can obviously not have been what you wrote, so will > > > you repeat it, please? > > > > Get hold of yourself Paul. Your naive undersatanding of nature > > is laughable. If the lab wave length is considered universal > > then the frequency shift of a distant source is due to the > > different speed of light which is caused by the absolute motion > > of the observer relative to light (c-v). With this concept, > > your spectrometer measurement becomes useless. Why? Because > > you have to assume constant c to get the frequency. > > > > The c' value is determined by the following equation: > > c'=measured frequency *lab wave length. > > We can use the infrared spectum to measure the frequency > > since the frequency for the visible light spectrum is > > to high to measure. > > You forgot to answer the question, Ken. > It was: > What is it the diffraction grating spectrometer measures? It measures wave length if you assume that the speed of light is a universal constant. From that you could calculate the f4equency call this Fab. The frequency in the lab is identified as Faa From from these frequencies you could determine c'as follows: c'=c*Fab/Faa So you see the speed of light is variable by a factor of 1/DFa.:-) I am sure you remember that DFa=Faa/Fab > |
|
Index Original post and context: 75dd81d3.0210041444.a8a41c3@posting.google.com |