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On 25 Sep, 22:36, HW@....(Dr. Henri Wilson) wrote:
On Tue, 25 Sep 2007 05:47:38 -0700, George Dishman wrote: On 23 Sep, 21:15, HW@....(Dr. Henri Wilson) wrote: On Wed, 19 Sep 2007 22:16:11 +0100, "George Dishman" wrote: "Henri Wilson" HW@.... wrote in message ... ...but I cannot see how a gamma paticle can end up similarly dispersed.... Photons hit one atom on a detector but never that next to it. They usually behave like bursts of wavefronts in optical systems and zero-size particles in detectors. That is not an acceptible theory. It is not a theory of any kind Henry. A theory consists of a set of eqations that make quanititative predictions of observed measurable values. What I said is a statement of what is observed, any valid theory has to predict that behaviour. George, admit it. Nobody including you has much of a clue about the true nature of light. You obviously don't, QED is a complete theory of light and gives arguably the most accurate predictions of any physical theory. Well you can't produce an interference pattern that way. But they do Henry, a lot of astronomy is done that way now. Take your EM program, think of it like a string of umberellas and if one red umberella wavefront passing through one telescope arrives at the same time as another later red umberella wavefront via the other telescope then you get constructive interference. You have drawn the pattern along a 1D 'ray' and the wavefronts are normal to that but imagine what a 3D view would look like. Who's to say how wide it could be? The evidence is they cover the whole sphere at emission. Well I say the conclusions are a complete misinterpretation of the facts. What I have written above are the facts, it is up to you to interpret them. Photons only ever cause a single detection in a sensor (perhaps multiple electrons if avalanche technology is used) and individual photons are subject to all the normalrules of interference and diffraction. To get interference from two detectors spaced 100 metres apart requires coherence. If a single photon stretches right across then what you said above is wrong. A 100 m wide photon will strike more than one atom. Even YOU should see that. Of course. A simple telescope mirror has to have the whole surface accurate to a fraction of a wavelength because it all affects each photon, but the photon only ever interacts with _one_ atom when it finally hits the CCD or photoelectric plate in a PM tube. You claim to be familiar with the photoelectric effect so you should know that already. The same is true in the VLTI configuration, each photon is affected by the paths through both telescopes and all of both their surfaces, but the detector still sees them as individual particles. Those are the facts, what you have to do is invent a theory (a set of equations) that predicts that and the resulting interference pattern. You also said once before that the interference is cause byinteraction between photons emitted from the two sides of the star. No Henry, you said that. I said that was impossible because they are uncorrelated. I think you spend too much time inventing strawmen and forget what I really said. George, if the pattern is NOT caused by photons from both sides of the star, how can it possibly privide information about radius change? I explained that before. Photons(idividually) from one side of the star create a pattern of intensity. Photons from the other also create their own pattern, again behaving individually, but the patterns are displaced by a small amount, essentially the size of the "image" formed by the telescope. Because one is shifted relative to the other, the nulls don't occur in the same place which affects the contrast ratio of the fringe pattern. The actual analysis is much more complex, involving limb darkening and lots of other stuff but those are the basics. It sounds as though all you are seeing is a fuzzy image of the star. There are different ways to configure the detection. In 2D mode what you get is an image crossed by interference fringes. In 1D mode you get a graph which looks like a static version of your EM illustration, a windowed sine wave. No Henry, you get interference when a single photon is received at both ends of the antenna and combined. If the path length difference is a multiple of the wavelength you get constructive interference as usual. That applies to each photon individually. The path length difference for the phtotn includes a term that depends on which side it came from since that slightly changes the angle of the wavefront since it is perpendicular to the line of site. George, no matter how you try to wriggle out, a single photon from a star cannot tell you anything about the star's radius. Of course not, as I told you before, it is the superposition of the displaced interference patterns that carries the information.... I could just as easily carry information about varying light speed. Don';t change the subject, it is the pattern that provides the information as I ahve told you before, not a single photon which is your strawman. I don't accept that cepheids are really huff puff stars. Tough, the radius is observed to vary and the interferometric, photometric and integrated velocity measurements are all similar. .they are willusions. Not according to ballistic theory, it says they are valid. I hope you are impressed George. No, ballistic theory is wrong as shown by Sagnac but I am pleased that you have learnt a little local astrophysics, that's what this game is all about ;-) Sagnac disproves SR. ... Don't waste your time with stupid word games, it would be better spent if you learned some schoolboy calculus. I know more about calculus than you do. ROFL, you just tried to tell me equation [3] should be (c+v)/n, obviously you cannot even differentiate an exponential :-) I prefer to avoid it where possible. Hardly surprising given your incompetence, but then that's physics anyway and all you want to do is talk philosophy. George |
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On Wed, 26 Sep 2007 01:28:34 -0700, George Dishman
wrote: On 25 Sep, 22:36, HW@....(Dr. Henri Wilson) wrote: On Tue, 25 Sep 2007 05:47:38 -0700, George Dishman wrote: What I said is a statement of what is observed, any valid theory has to predict that behaviour. George, admit it. Nobody including you has much of a clue about the true nature of light. You obviously don't, QED is a complete theory of light and gives arguably the most accurate predictions of any physical theory. George, QED doesn't tell us anything about the nature of light in transit. The only facts we know about light relate to its arrival. Light spends almost all of its time traveling. To get interference from two detectors spaced 100 metres apart requires coherence. If a single photon stretches right across then what you said above is wrong. A 100 m wide photon will strike more than one atom. Even YOU should see that. Of course. A simple telescope mirror has to have the whole surface accurate to a fraction of a wavelength because it all affects each photon, but the photon only ever interacts with _one_ atom when it finally hits the CCD or photoelectric plate in a PM tube. You're the one becoming incoherent now George. You claim to be familiar with the photoelectric effect so you should know that already. The same is true in the VLTI configuration, each photon is affected by the paths through both telescopes and all of both their surfaces, but the detector still sees them as individual particles. Those are the facts, what you have to do is invent a theory (a set of equations) that predicts that and the resulting interference pattern. You aren't talking about interference. You're talking about a simple image. much more complex, involving limb darkening and lots of other stuff but those are the basics. It sounds as though all you are seeing is a fuzzy image of the star. There are different ways to configure the detection. In 2D mode what you get is an image crossed by interference fringes. In 1D mode you get a graph which looks like a static version of your EM illustration, a windowed sine wave. You've lost me George. Of course not, as I told you before, it is the superposition of the displaced interference patterns that carries the information.... I could just as easily carry information about varying light speed. Don';t change the subject, it is the pattern that provides the information as I ahve told you before, not a single photon which is your strawman. Here we go again...every time I ask George a difficult question he accuses me of changing the subject... Tough, the radius is observed to vary and the interferometric, photometric and integrated velocity measurements are all similar. .they are willusions. Not according to ballistic theory, it says they are valid. bull I hope you are impressed George. No, ballistic theory is wrong as shown by Sagnac but I am pleased that you have learnt a little local astrophysics, that's what this game is all about ;-) Sagnac disproves SR. ... Don't waste your time with stupid word games, it would be better spent if you learned some schoolboy calculus. I know more about calculus than you do. ROFL, you just tried to tell me equation [3] should be (c+v)/n, obviously you cannot even differentiate an exponential :-) What I suggested has nothing to do wtih calculus. George, you're problem is you copy maths from websites to try to appear knowledgable when you really haven't a clue what it all means. I prefer to avoid it where possible. Hardly surprising given your incompetence, but then that's physics anyway and all you want to do is talk philosophy. George, I suggest you take a real course in physics instead of dreaming you already have. George Henri Wilson. ASTC,BSc,DSc(T) www.users.bigpond.com/hewn/index.htm |
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On Wed, 26 Sep 2007 01:11:39 -0700, George Dishman
wrote: On 25 Sep, 22:53, HW@....(Dr. Henri Wilson) wrote: Of course, the corona for example. and that layer emits plenty of light. Oops, no. You forgot Kirchofff's Law again, if it is really transparent it cannot emit at all. George, absorption is exponential. If the layer absorbs only 10% per 100 kms, about 36% will still pass through 1000 kms. The layer will have an emissivity 0 and will still radiate. See the next paragraph: In practice both the outer layer just above the photosphere and the corona show spectral lines. The upper surface is cooler than the photosphere so they appear in absorption while the corona is hotter and the lines show as emission. What we have been discussing re temperature is the background continuum excluding the lines. There is no continuum emission from the 'transparent' layer but where there is a resonance and the opacity is higher at that specific frequency, we see absorption. That's a funny paragraph. 'opacity' ...'specific frequency' ...I didn't know these had the same physical dimensions... ...yes..and I have been pointing out that ADoppler can cause a considerable shift in the planck curve. And I have been pointing that while it _could_, we know it _doesn't_, the actual shift is only 0.01% and such a small shift doesn't affect temperature determination. If the shift is only 0.01%, so what? Note also that if the frequency shift were larger, it would no longer be a black body curve but in practice the shift is so small that is negligible. Many stars do not exhibit black body curves so how would you now if they were shifted or not. George Henri Wilson. ASTC,BSc,DSc(T) www.users.bigpond.com/hewn/index.htm |
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On 26 Sep, 11:44, HW@....(clueless Henri Wilson) wrote:
On Wed, 26 Sep 2007 01:28:34 -0700, George Dishman wrote: On 25 Sep, 22:36, HW@....(Dr. Henri Wilson) wrote: On Tue, 25 Sep 2007 05:47:38 -0700, George Dishman wrote: What I said is a statement of what is observed, any valid theory has to predict that behaviour. George, admit it. Nobody including you has much of a clue about the true nature of light. You obviously don't, QED is a complete theory of light and gives arguably the most accurate predictions of any physical theory. George, QED doesn't tell us anything about the nature of light in transit. You are back to the old philosophical debate about whether something exists when it is not being observed. QED tells you all the _science_. The only facts we know about light relate to its arrival. Light spends almost all of its time traveling. To get interference from two detectors spaced 100 metres apart requires coherence. If a single photon stretches right across then what you said above is wrong. A 100 m wide photon will strike more than one atom. Even YOU should see that. Of course. A simple telescope mirror has to have the whole surface accurate to a fraction of a wavelength because it all affects each photon, but the photon only ever interacts with _one_ atom when it finally hits the CCD or photoelectric plate in a PM tube. You're the one becoming incoherent now George. I clearly overestimated your knowledge again, I thought you knew something about the photoelectric effect. These are simple statements of fact. You claim to be familiar with the photoelectric effect so you should know that already. The same is true in the VLTI configuration, each photon is affected by the paths through both telescopes and all of both their surfaces, but the detector still sees them as individual particles. Those are the facts, what you have to do is invent a theory (a set of equations) that predicts that and the resulting interference pattern. You aren't talking about interference. Yes I am, interferometers are regularly used on astronomical telescopes. You're talking about a simple image. An image is formed by interference Henry, Paul told you how. much more complex, involving limb darkening and lots of other stuff but those are the basics. It sounds as though all you are seeing is a fuzzy image of the star. There are different ways to configure the detection. In 2D mode what you get is an image crossed by interference fringes. In 1D mode you get a graph which looks like a static version of your EM illustration, a windowed sine wave. You've lost me George. I warned you it was complex, I'll try to upload some synthesised images so you can see what I mean but it won't be for a few days. Of course not, as I told you before, it is the superposition of the displaced interference patterns that carries the information.... I could just as easily carry information about varying light speed. Don';t change the subject, it is the pattern that provides the information as I ahve told you before, not a single photon which is your strawman. Here we go again...every time I ask George a difficult question he accuses me of changing the subject... You didn't ask a question, you made a statement about a different topic. What other things light might tell us in addition to what we are discussing is hardly useful. Tough, the radius is observed to vary and the interferometric, photometric and integrated velocity measurements are all similar. .they are willusions. Not according to ballistic theory, it says they are valid. bull A statement of fact Henry. I hope you are impressed George. No, ballistic theory is wrong as shown by Sagnac but I am pleased that you have learnt a little local astrophysics, that's what this game is all about ;-) Sagnac disproves SR. ... Don't waste your time with stupid word games, it would be better spent if you learned some schoolboy calculus. I know more about calculus than you do. ROFL, you just tried to tell me equation [3] should be (c+v)/n, obviously you cannot even differentiate an exponential :-) What I suggested has nothing to do wtih calculus. So you don't even recognise a first order differential equation when you see it! George, you're problem is you copy maths from websites to try to appear knowledgable when you really haven't a clue what it all means. Henry, your problem is that you haven't learned any maths, equation [3] is trivial schoolboy stuff and I was writing ones like it when I was 13 years old. I still use equations like that in my work regularly. You seem to think it is some fancy PhD stuff but the truth is you will find it in any decent secondary school textbook. Looking at some web pages suggests The Aussie level for this stuff should be around year 8 in secondary school. For equation [3] we want the speed to change as the light travels, We could write an equation so for dv/ds or dv/dt, I choose dv/ds for a couple of reasons, notably because the mechanism must involve interactions which can be defined as a number per distance based on a density. We know the light will speed up if it is too slow and slow down if it is too fast so if v is large, the rate of change is negative while if the speed is low the rate is positive. That means v enters with a negative sign. The simplest form is first order and that will be at worst an adequate approximation as long as v c, and may be exact, so the basic form must be: dv/ds = A * (B - v) where A and B are positive constants. In case you don't recognise it, the bit on the left is a derivative meaning the rate at which v changes as a function of s, the distance travelled, and derivatives are one aspect of caclulus. We know the eventual speed is c/n and at that speed the rate of change is zero so if the bit in brackets is to be zero constant when v=c/n, the value of B must be c/n so: dv/ds = A * (c/n - v) The left hand side has units of speed/distance and (c/n - v) has units of speed so constant A must have units of inverse distance. It is easier then to define R = 1 / A and hence: dv/ds = (c/n - v) / R where now R has units of distance. Hey presto Henry, you have equation [3]. Easy, wasn't it. I prefer to avoid it where possible. Hardly surprising given your incompetence, but then that's physics anyway and all you want to do is talk philosophy. George, I suggest you take a real course in physics instead of dreaming you already have. I have an honours degree in physics already, and it's a real one, not like your fake paper. What _you_ need to do is take the Aussie equivalent of an English "A Level" in maths, or at least get up to your 8th grade level so you can understand equations like the one above without me having to explain them to you. With a bit of practice you should be able to write them for yourself. George |
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On 26 Sep, 11:49, HW@....(Dr. Henri Wilson) wrote:
On Wed, 26 Sep 2007 01:11:39 -0700, George Dishman wrote: On 25 Sep, 22:53, HW@....(Dr. Henri Wilson) wrote: Of course, the corona for example. and that layer emits plenty of light. Oops, no. You forgot Kirchofff's Law again, if it is really transparent it cannot emit at all. George, absorption is exponential. If the layer absorbs only 10% per 100 kms, about 36% will still pass through 1000 kms. The layer will have an emissivity 0 and will still radiate. See the next paragraph: In practice both the outer layer just above the photosphere and the corona show spectral lines. The upper surface is cooler than the photosphere so they appear in absorption while the corona is hotter and the lines show as emission. What we have been discussing re temperature is the background continuum excluding the lines. There is no continuum emission from the 'transparent' layer but where there is a resonance and the opacity is higher at that specific frequency, we see absorption. That's a funny paragraph. 'opacity' ...'specific frequency' ...I didn't know these had the same physical dimensions... Why would you imagine they would? The opacity of the gas just above the photosphere is higher at the specific frequency we call hydrogen Alpha than at other frequencies between such resonances. You even claimed you had taken pictures in H alpha. ...yes..and I have been pointing out that ADoppler can cause a considerable shift in the planck curve. And I have been pointing that while it _could_, we know it _doesn't_, the actual shift is only 0.01% and such a small shift doesn't affect temperature determination. If the shift is only 0.01%, so what? So the amount of energy that falls outside a bandpass filter from 2000 to 2400 nm because of the shift is negligible hence the temperature measurement based on that value is valid. Note also that if the frequency shift were larger, it would no longer be a black body curve but in practice the shift is so small that is negligible. Many stars do not exhibit black body curves so how would you now if they were shifted or not. The shift is measured from specific lines, you cannot measure a shift of 0.01% in the continuum which is never exactly a black body because of the finite thickness. This is all obvious stuff Henry. George |
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On Wed, 26 Sep 2007 05:24:38 -0700, George Dishman
wrote: On 26 Sep, 11:44, HW@....(clueless Henri Wilson) wrote: On Wed, 26 Sep 2007 01:28:34 -0700, George Dishman wrote: On 25 Sep, 22:36, HW@....(Dr. Henri Wilson) wrote: On Tue, 25 Sep 2007 05:47:38 -0700, George Dishman wrote: What I said is a statement of what is observed, any valid theory has to predict that behaviour. George, admit it. Nobody including you has much of a clue about the true nature of light. You obviously don't, QED is a complete theory of light and gives arguably the most accurate predictions of any physical theory. George, QED doesn't tell us anything about the nature of light in transit. You are back to the old philosophical debate about whether something exists when it is not being observed. QED tells you all the _science_. Once again you claim that modern physics can answer all the questions... It cannot.... QED tells us nothing about light in transit. The only facts we know about light relate to its arrival. Light spends almost all of its time traveling. To get interference from two detectors spaced 100 metres apart requires coherence. If a single photon stretches right across then what you said above is wrong. A 100 m wide photon will strike more than one atom. Even YOU should see that. Of course. A simple telescope mirror has to have the whole surface accurate to a fraction of a wavelength because it all affects each photon, but the photon only ever interacts with _one_ atom when it finally hits the CCD or photoelectric plate in a PM tube. You're the one becoming incoherent now George. I clearly overestimated your knowledge again, I thought you knew something about the photoelectric effect. These are simple statements of fact. You are continually contradicting yourself. Ii cannot follow what you are saying any more. One minute we have a 100m wide photon that is refelcted from both telescopes onto a screen to form an image, now we have this huge photon striking only one atom. You aren't making sense George. You claim to be familiar with the photoelectric effect so you should know that already. The same is true in the VLTI configuration, each photon is affected by the paths through both telescopes and all of both their surfaces, but the detector still sees them as individual particles. Those are the facts, what you have to do is invent a theory (a set of equations) that predicts that and the resulting interference pattern. You aren't talking about interference. Yes I am, interferometers are regularly used on astronomical telescopes. You're talking about a simple image. An image is formed by interference Henry, Paul told you how. Paul knows even lees than you do... much more complex, involving limb darkening and lots of other stuff but those are the basics. I could just as easily carry information about varying light speed. Don';t change the subject, it is the pattern that provides the information as I ahve told you before, not a single photon which is your strawman. Here we go again...every time I ask George a difficult question he accuses me of changing the subject... You didn't ask a question, you made a statement about a different topic. What other things light might tell us in addition to what we are discussing is hardly useful. George, I am trying to explain to you that what it being interpreted as a radius change is possibly just a light velocity change. Don't waste your time with stupid word games, it would be better spent if you learned some schoolboy calculus. I know more about calculus than you do. ROFL, you just tried to tell me equation [3] should be (c+v)/n, obviously you cannot even differentiate an exponential :-) What I suggested has nothing to do wtih calculus. So you don't even recognise a first order differential equation when you see it! Of course I can......that has nothing to do with the velocity being c or c+v in the 'medium'. .....but your equation is worthless unless you derive functions for both n and r....and it will be a horrible thing to solve....Much better to let a computer solve it. George, you're problem is you copy maths from websites to try to appear knowledgable when you really haven't a clue what it all means. Henry, your problem is that you haven't learned any maths, equation [3] is trivial schoolboy stuff and I was writing ones like it when I was 13 years old. I still use equations like that in my work regularly. You seem to think it is some fancy PhD stuff but the truth is you will find it in any decent secondary school textbook. Looking at some web pages suggests The Aussie level for this stuff should be around year 8 in secondary school. George, stop it.....you're making me laugh.... For equation [3] we want the speed to change as the light travels, We could write an equation so for dv/ds or dv/dt, I choose dv/ds for a couple of reasons, notably because the mechanism must involve interactions which can be defined as a number per distance based on a density. George, your equation is trivial. What you have to do is derive functions for both n and r...... versus distance. Then you can solve the differential equation. We know the light will speed up if it is too slow and slow down if it is too fast so if v is large, the rate of change is negative while if the speed is low the rate is positive. That means v enters with a negative sign. The simplest form is first order and that will be at worst an adequate approximation as long as v c, and may be exact, so the basic form must be: dv/ds = A * (B - v) ...and dv/dt will also be = A * (B - v) since vc. where A and B are positive constants. In case you don't recognise it, the bit on the left is a derivative meaning the rate at which v changes as a function of s, the distance travelled, and derivatives are one aspect of caclulus. ![]() We know the eventual speed is c/n and at that speed the rate of change is zero so if the bit in brackets is to be zero constant when v=c/n, the value of B must be c/n so: dv/ds = A * (c/n - v) The left hand side has units of speed/distance and (c/n - v) has units of speed so constant A must have units of inverse distance. It is easier then to define R = 1 / A and hence: dv/ds = (c/n - v) / R where now R has units of distance. Hey presto Henry, you have equation [3]. Easy, wasn't it. ![]() I prefer to avoid it where possible. Hardly surprising given your incompetence, but then that's physics anyway and all you want to do is talk philosophy. George, I suggest you take a real course in physics instead of dreaming you already have. I have an honours degree in physics already, and it's a real one, not like your fake paper. What _you_ need to do is take the Aussie equivalent of an English "A Level" in maths, or at least get up to your 8th grade level so you can understand equations like the one above without me having to explain them to you. With a bit of practice you should be able to write them for yourself. George, stop raving and derive n(s) and r(s) for the various situations please. George Henri Wilson. ASTC,BSc,DSc(T) www.users.bigpond.com/hewn/index.htm |
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On Wed, 26 Sep 2007 05:32:46 -0700, George Dishman
wrote: On 26 Sep, 11:49, HW@....(Dr. Henri Wilson) wrote: On Wed, 26 Sep 2007 01:11:39 -0700, George Dishman wrote: On 25 Sep, 22:53, HW@....(Dr. Henri Wilson) wrote: Of course, the corona for example. and that layer emits plenty of light. Oops, no. You forgot Kirchofff's Law again, if it is really transparent it cannot emit at all. George, absorption is exponential. If the layer absorbs only 10% per 100 kms, about 36% will still pass through 1000 kms. The layer will have an emissivity 0 and will still radiate. See the next paragraph: In practice both the outer layer just above the photosphere and the corona show spectral lines. The upper surface is cooler than the photosphere so they appear in absorption while the corona is hotter and the lines show as emission. What we have been discussing re temperature is the background continuum excluding the lines. There is no continuum emission from the 'transparent' layer but where there is a resonance and the opacity is higher at that specific frequency, we see absorption. That's a funny paragraph. 'opacity' ...'specific frequency' ...I didn't know these had the same physical dimensions... Why would you imagine they would? The opacity of the gas just above the photosphere is higher at the specific frequency we call hydrogen Alpha than at other frequencies between such resonances. You even claimed you had taken pictures in H alpha. Sorry I misread your statement... It's OK.. ...yes..and I have been pointing out that ADoppler can cause a considerable shift in the planck curve. And I have been pointing that while it _could_, we know it _doesn't_, the actual shift is only 0.01% and such a small shift doesn't affect temperature determination. If the shift is only 0.01%, so what? So the amount of energy that falls outside a bandpass filter from 2000 to 2400 nm because of the shift is negligible hence the temperature measurement based on that value is valid. Note also that if the frequency shift were larger, it would no longer be a black body curve but in practice the shift is so small that is negligible. Many stars do not exhibit black body curves so how would you now if they were shifted or not. The shift is measured from specific lines, you cannot measure a shift of 0.01% in the continuum which is never exactly a black body because of the finite thickness. This is all obvious stuff Henry. George, let's get this straight. You say temperature is estimated by comparing the energy arriving in the two fliter bands and assuming a black body curve. I say the average light in the two bands can come from slightly different layers with different radial velocities. ADoppler can shift the light by much more than 0.01% and might easily lead to false ratios in the two bands. George Henri Wilson. ASTC,BSc,DSc(T) www.users.bigpond.com/hewn/index.htm |
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On 26 Sep, 23:09, HW@....(Dr. Henri Wilson) wrote:
On Wed, 26 Sep 2007 05:24:38 -0700, George Dishman wrote: On 26 Sep, 11:44, HW@....(clueless Henri Wilson) wrote: On Wed, 26 Sep 2007 01:28:34 -0700, George Dishman wrote: On 25 Sep, 22:36, HW@....(Dr. Henri Wilson) wrote: On Tue, 25 Sep 2007 05:47:38 -0700, George Dishman wrote: What I said is a statement of what is observed, any valid theory has to predict that behaviour. George, admit it. Nobody including you has much of a clue about the true nature of light. You obviously don't, QED is a complete theory of light and gives arguably the most accurate predictions of any physical theory. George, QED doesn't tell us anything about the nature of light in transit. You are back to the old philosophical debate about whether something exists when it is not being observed. QED tells you all the _science_. Once again you claim that modern physics can answer all the questions... No, it answers only the scientific questions, not philosophical ones. It cannot.... QED tells us nothing about light in transit. QED addresses the relationship between emission and detection. Whether the photon exists while it is not being observed, i.e. in transit, is a philosophical question. If the photon interacts while in transit, that interaction is correctly explained by QED. To get interference from two detectors spaced 100 metres apart requires coherence. If a single photon stretches right across then what you said above is wrong. A 100 m wide photon will strike more than one atom. Even YOU should see that. Of course. A simple telescope mirror has to have the whole surface accurate to a fraction of a wavelength because it all affects each photon, but the photon only ever interacts with _one_ atom when it finally hits the CCD or photoelectric plate in a PM tube. You're the one becoming incoherent now George. I clearly overestimated your knowledge again, I thought you knew something about the photoelectric effect. These are simple statements of fact. You are continually contradicting yourself. Ii cannot follow what you are saying any more. One minute we have a 100m wide photon that is refelcted from both telescopes onto a screen to form an image, now we have this huge photon striking only one atom. You aren't making sense George. Reality may not make sense to you Henry, what you have just said is a pretty good summary of what is observed. The VLTI system is a good example but there are others where distributed telescopes are linked to make interferometers and they can work with single photons. The point you make about the detection is what you yourself were citing to Sean as the evidence that light is in the form of particles, something we agee on entirely, but Young's Slits, gratings and large telescopes all show interference on individual photons. Any attempt you make to produce a particle based theory will need to address that. much more complex, involving limb darkening and lots of other stuff but those are the basics. I could just as easily carry information about varying light speed. Don';t change the subject, it is the pattern that provides the information as I ahve told you before, not a single photon which is your strawman. Here we go again...every time I ask George a difficult question he accuses me of changing the subject... You didn't ask a question, you made a statement about a different topic. What other things light might tell us in addition to what we are discussing is hardly useful. George, I am trying to explain to you that what it being interpreted as a radius change is possibly just a light velocity change. And I have explained that the phase difference through the two light paths for a single photon can only depend on the speed over the last few wavelengths prior to the surface of the telescopes. Any speed variations prior to that are common to both paths since we are talking about just one photon. There is no point in repeating what you said when I have already told you why it does not have any effect. Don't waste your time with stupid word games, it would be better spent if you learned some schoolboy calculus. I know more about calculus than you do. ROFL, you just tried to tell me equation [3] should be (c+v)/n, obviously you cannot even differentiate an exponential :-) What I suggested has nothing to do wtih calculus. So you don't even recognise a first order differential equation when you see it! Of course I can......that has nothing to do with the velocity being c or c+v in the 'medium'. No, it is the equation for "speed equalisation" after its emission at c+v. ....but your equation is worthless unless you derive functions for both n and r....and it will be a horrible thing to solve....Much better to let a computer solve it. Go ahead then, if you think the equation isn't valid if I have to look up the refractive of glass and instead it must be derived from first principles, go ahead and write your program to do it. Any conventional derivation would apply QED of course but ballistic theory replaces that so in your case you would have to write your own derivation using equations [2] and [3]. George, you're problem is you copy maths from websites to try to appear knowledgable when you really haven't a clue what it all means. Henry, your problem is that you haven't learned any maths, equation [3] is trivial schoolboy stuff and I was writing ones like it when I was 13 years old. I still use equations like that in my work regularly. You seem to think it is some fancy PhD stuff but the truth is you will find it in any decent secondary school textbook. Looking at some web pages suggests The Aussie level for this stuff should be around year 8 in secondary school. George, stop it.....you're making me laugh.... Then stop making mathematical mistakes that any competent 14 year old could correct. For equation [3] we want the speed to change as the light travels, We could write an equation so for dv/ds or dv/dt, I choose dv/ds for a couple of reasons, notably because the mechanism must involve interactions which can be defined as a number per distance based on a density. George, your equation is trivial. What you have to do is derive functions for both n and r...... versus distance. Then you can solve the differential equation. I don't need to derive the values at all, they relate to actual situations so for example for the pulsars we looked at, the value of n(s) is measured using the frequency dependence. In reality, r(s) cannot be measured since it doesn't exist. We know the light will speed up if it is too slow and slow down if it is too fast so if v is large, the rate of change is negative while if the speed is low the rate is positive. That means v enters with a negative sign. The simplest form is first order and that will be at worst an adequate approximation as long as v c, and may be exact, so the basic form must be: dv/ds = A * (B - v) ..and dv/dt will also be = A * (B - v) since vc. Yes, and it would be a good excercise for you to see if you can work ou why I chose to use dv/ds instead of dv/dt. You'll need to learn some calculus to do that. where A and B are positive constants. In case you don't recognise it, the bit on the left is a derivative meaning the rate at which v changes as a function of s, the distance travelled, and derivatives are one aspect of caclulus. ![]() We know the eventual speed is c/n and at that speed the rate of change is zero so if the bit in brackets is to be zero constant when v=c/n, the value of B must be c/n so: dv/ds = A * (c/n - v) The left hand side has units of speed/distance and (c/n - v) has units of speed so constant A must have units of inverse distance. It is easier then to define R = 1 / A and hence: dv/ds = (c/n - v) / R where now R has units of distance. Hey presto Henry, you have equation [3]. Easy, wasn't it. ![]() Before smiling, bear in mind you have been touting your handwaving for ten years or more and in all that time you were never able to produce that equation while it only took me minutes. I prefer to avoid it where possible. Hardly surprising given your incompetence, but then that's physics anyway and all you want to do is talk philosophy. George, I suggest you take a real course in physics instead of dreaming you already have. I have an honours degree in physics already, and it's a real one, not like your fake paper. What _you_ need to do is take the Aussie equivalent of an English "A Level" in maths, or at least get up to your 8th grade level so you can understand equations like the one above without me having to explain them to you. With a bit of practice you should be able to write them for yourself. George, stop raving and derive n(s) and r(s) for the various situations please. I have already given you the link to the dispersion equation for n(s) from the Jodrell Bank site. There is no equation for r(s) but if you remember we found an upper value for the mean of r(s) from the pulsar data. This is supposed to be your theory so you have to write it yourself Henry, but I can tell you how I would approach it if I were you. Work in the rest frame of the material and suppose we want to calculate r(s) for the ISM (in a solid the atoms are somewhat fixed so you need to consider vibrational modes and such like). A photon moving at initial speed c+Vi is propagating through space and hits a charged particle of mass M which is at rest. The photon carries momentum P which is transferred to the particle causing it to move with speed Va. Note that we need Va Vi for Vi 0. The particle then emits a photon with speed c relative to the particle, thus at speed Va+c which carries off some momentum P. The recoil slows the particle to Vb hence after the interaction some momentum has been transferred to the particle and the photon which was initially moving faster than c has lost momentum and has been slowed which looks good. To turn that into an equation derived from your theory, you need to first provide an equation that relates the photon momentum to its speed. Use that to find the initial P value, say P=f(c+Vi), use Va = P/M for the particle and then conservation of momentum gives P = M*Vb + f(c+Va). To get r(s) finally, you need to work out the number of such interactions per unit distance as a function of the density in a similar fashion to the pulsar formula I showed you for the refractive index. There is a problem unfortunately, if you start with Vi 0 (e.g. a "c-v" photon) then the particle moves more slowly and the recoil means the same process speeds up the photon as you want, however the particle still gets a positive speed and the emitted photon has speed c after the interaction. Solving that one is your task, this is supposed to be your theory after all so I can't do it all for you. George |
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On Thu, 27 Sep 2007 01:16:58 -0700, George Dishman
wrote: On 26 Sep, 23:09, HW@....(Dr. Henri Wilson) wrote: On Wed, 26 Sep 2007 05:24:38 -0700, George Dishman wrote: You are back to the old philosophical debate about whether something exists when it is not being observed. QED tells you all the _science_. Once again you claim that modern physics can answer all the questions... No, it answers only the scientific questions, not philosophical ones. your version does. It cannot.... QED tells us nothing about light in transit. QED addresses the relationship between emission and detection. Whether the photon exists while it is not being observed, i.e. in transit, is a philosophical question. If the photon interacts while in transit, that interaction is correctly explained by QED. Oh crap. Of course light exists is some form during its lifetime of travel. That form can be described in terms of OUR physical 3D, 1T universe. This is pure physics, not philosophy. The Einstein claim that all starlight in the universe travels miraculously at exactly c wrt litlte planet Earth is philosophy....the fairyland type... You are continually contradicting yourself. Ii cannot follow what you are saying any more. One minute we have a 100m wide photon that is refelcted from both telescopes onto a screen to form an image, now we have this huge photon striking only one atom. You aren't making sense George. Reality may not make sense to you Henry, what you have just said is a pretty good summary of what is observed. The VLTI system is a good example but there are others where distributed telescopes are linked to make interferometers and they can work with single photons. The point you make about the detection is what you yourself were citing to Sean as the evidence that light is in the form of particles, something we agee on entirely, but Young's Slits, gratings and large telescopes all show interference on individual photons. Any attempt you make to produce a particle based theory will need to address that. OK, it appears that photons 'spread out' as they travel. I have no problem with that except to add that is seems logical that they might also lose a little energy in doing so and appear to be red shifted as a result. You didn't ask a question, you made a statement about a different topic. What other things light might tell us in addition to what we are discussing is hardly useful. George, I am trying to explain to you that what it being interpreted as a radius change is possibly just a light velocity change. And I have explained that the phase difference through the two light paths for a single photon can only depend on the speed over the last few wavelengths prior to the surface of the telescopes. Any speed variations prior to that are common to both paths since we are talking about just one photon. There is no point in repeating what you said when I have already told you why it does not have any effect. ....and I have tried to explain to you that one photon cannot reveal anything about any radius change. What I suggested has nothing to do wtih calculus. So you don't even recognise a first order differential equation when you see it! Of course I can......that has nothing to do with the velocity being c or c+v in the 'medium'. No, it is the equation for "speed equalisation" after its emission at c+v. ....but your equation is worthless unless you derive functions for both n and r....and it will be a horrible thing to solve....Much better to let a computer solve it. Go ahead then, if you think the equation isn't valid if I have to look up the refractive of glass and instead it must be derived from first principles, go ahead and write your program to do it. Any conventional derivation would apply QED of course but ballistic theory replaces that so in your case you would have to write your own derivation using equations [2] and [3]. George, YOUR equation is trivial. The hard part is finding n(s) and r(s). relate to actual situations so for example for the pulsars we looked at, the value of n(s) is measured using the frequency dependence. In reality, r(s) cannot be measured since it doesn't exist. your opinion.... We know the light will speed up if it is too slow and slow down if it is too fast so if v is large, the rate of change is negative while if the speed is low the rate is positive. That means v enters with a negative sign. The simplest form is first order and that will be at worst an adequate approximation as long as v c, and may be exact, so the basic form must be: dv/ds = A * (B - v) ..and dv/dt will also be = A * (B - v) since vc. Yes, and it would be a good excercise for you to see if you can work ou why I chose to use dv/ds instead of dv/dt. You'll need to learn some calculus to do that. ![]() Obviously n(s) and r(s) are much easier to consider as functions of distance, rather than time. where now R has units of distance. Hey presto Henry, you have equation [3]. Easy, wasn't it. ![]() Before smiling, bear in mind you have been touting your handwaving for ten years or more and in all that time you were never able to produce that equation while it only took me minutes. George, I have a mind that does these things automatically. I don't need any equations until I get the model right. You being an engineer require an equation BEFORE you get the model right. Physicists provide engineers with equations. George, stop raving and derive n(s) and r(s) for the various situations please. I have already given you the link to the dispersion equation for n(s) from the Jodrell Bank site. There is no equation for r(s) but if you remember we found an upper value for the mean of r(s) from the pulsar data. This is supposed to be your theory so you have to write it yourself Henry, but I can tell you how I would approach it if I were you. There is NO clearcut equation for either. There are many different situations regarding the common EM sphere around binary pairs. I suppose it wouldn't be too hard to describe what YOU are likening to a refractive index, n(s), as something like: 1-n = (1-n(o)).K/(s^3)....but that would be an oversimplification. r(s) would be hard to describe since it involves statistics. Light randomly speeds up and slows down as it travels.... We can regrad the universe as being turbulent like any rare gas. However, we can state that type(2) unification AFTER LEAVING THE STAR'S SPHERE requires that c+v+u - c-v+u. in other words the v - zero with distance. After unification, the velocity 'u' will also vary depending on the properties of the particular region of space the light happens to be in. Work in the rest frame of the material and suppose we want to calculate r(s) for the ISM (in a solid the atoms are somewhat fixed so you need to consider vibrational modes and such like). A photon moving at initial speed c+Vi is propagating through space and hits a charged particle of mass M which is at rest. The photon carries momentum P which is transferred to the particle causing it to move with speed Va. Note that we need Va Vi for Vi 0. The particle then emits a photon with speed c relative to the particle, thus at speed Va+c which carries off some momentum P. The recoil slows the particle to Vb hence after the interaction some momentum has been transferred to the particle and the photon which was initially moving faster than c has lost momentum and has been slowed which looks good. I think that approach is too conventional. It can't account for the speeding up of light...even though it can explain the cosmic redshift. To turn that into an equation derived from your theory, you need to first provide an equation that relates the photon momentum to its speed. Use that to find the initial P value, say P=f(c+Vi), use Va = P/M for the particle and then conservation of momentum gives P = M*Vb + f(c+Va). To get r(s) finally, you need to work out the number of such interactions per unit distance as a function of the density in a similar fashion to the pulsar formula I showed you for the refractive index. This is still the 'refractive index' approach. I maintain that unification involves MORE than ordinary matter. If a photon is a discreet particle, it must interact with its surroundings in order to change speed ...up or down... I still like the idea that a photon is basically a rapidly rotating pair of charges carving out a helix or some kind of spatial patern as they travel. Polarization has to be explained though. There is a problem unfortunately, if you start with Vi 0 (e.g. a "c-v" photon) then the particle moves more slowly and the recoil means the same process speeds up the photon as you want, however the particle still gets a positive speed and the emitted photon has speed c after the interaction. Solving that one is your task, this is supposed to be your theory after all so I can't do it all for you. At least you are now trying rather than rejecting it outright.... Thanks George... George Henri Wilson. ASTC,BSc,DSc(T) www.users.bigpond.com/hewn/index.htm |
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On 27 Sep, 22:55, HW@....(Dr. Henri Wilson) wrote:
On Thu, 27 Sep 2007 01:16:58 -0700, George Dishman wrote: On 26 Sep, 23:09, HW@....(Dr. Henri Wilson) wrote: On Wed, 26 Sep 2007 05:24:38 -0700, George Dishman wrote: You are back to the old philosophical debate about whether something exists when it is not being observed. QED tells you all the _science_. Once again you claim that modern physics can answer all the questions... No, it answers only the scientific questions, not philosophical ones. your version does. Right. It cannot.... QED tells us nothing about light in transit. QED addresses the relationship between emission and detection. Whether the photon exists while it is not being observed, i.e. in transit, is a philosophical question. If the photon interacts while in transit, that interaction is correctly explained by QED. Oh crap. Of course light exists is some form during its lifetime of travel. That form can be described in terms of OUR physical 3D, 1T universe. This is pure physics, not philosophy. No, physics is about what can be measured so by definition, what happens when it isn't measured is not physics. What we can say is that certain properties are conserved which implies that they have the same values when not being measured, but that is only an implication, it cannot be confirmed obviously. The Einstein claim that all starlight in the universe travels miraculously at exactly c wrt litlte planet Earth is philosophy....the fairyland type... Of course, your pathetic strawman is pure fairyland stuff. In the real world, SR says the speed is c in _all_inertial_ frames, and Earth isn't inertial, while there are an infinite number of inertial frames. You are continually contradicting yourself. Ii cannot follow what you are saying any more. One minute we have a 100m wide photon that is refelcted from both telescopes onto a screen to form an image, now we have this huge photon striking only one atom. You aren't making sense George. Reality may not make sense to you Henry, what you have just said is a pretty good summary of what is observed. The VLTI system is a good example but there are others where distributed telescopes are linked to make interferometers and they can work with single photons. The point you make about the detection is what you yourself were citing to Sean as the evidence that light is in the form of particles, something we agee on entirely, but Young's Slits, gratings and large telescopes all show interference on individual photons. Any attempt you make to produce a particle based theory will need to address that. OK, it appears that photons 'spread out' as they travel. Do a Young's Slits experiment. First put the source 10cm from slits 1cm apart and note you get an interference pattern. Then put the source 10m from slits 1m apart and note a similar pattern forms. It is the same as before, just scaled, if you also change the wavelength by a factor of 10. If you could set up the slits 1 light year apart and 10 light years from a source, you would again get an interference pattern and VLTI with "slits" 102m apart many light years from the source works exactly the same way. I have no problem with that except to add that is seems logical that they might also lose a little energy in doing so and appear to be red shifted as a result. The spreading out would be inverse square so you would expect photons in the 10m experiment to have 0.01% of the energy in the 10cm version, but light is particulate, all the energy lands at a single point in the detector. You didn't ask a question, you made a statement about a different topic. What other things light might tell us in addition to what we are discussing is hardly useful. George, I am trying to explain to you that what it being interpreted as a radius change is possibly just a light velocity change. And I have explained that the phase difference through the two light paths for a single photon can only depend on the speed over the last few wavelengths prior to the surface of the telescopes. Any speed variations prior to that are common to both paths since we are talking about just one photon. There is no point in repeating what you said when I have already told you why it does not have any effect. ...and I have tried to explain to you that one photon cannot reveal anything about any radius change. And I have told you that it is the contrast ratio of the overlapping interference patterns that is used to determine the radius. Interference applies to each photon individually so is unaffected by the speed in space but it is the cumulative distribution that gives us the information. What I suggested has nothing to do wtih calculus. So you don't even recognise a first order differential equation when you see it! Of course I can......that has nothing to do with the velocity being c or c+v in the 'medium'. No, it is the equation for "speed equalisation" after its emission at c+v. ....but your equation is worthless unless you derive functions for both n and r....and it will be a horrible thing to solve....Much better to let a computer solve it. Go ahead then, if you think the equation isn't valid if I have to look up the refractive of glass and instead it must be derived from first principles, go ahead and write your program to do it. Any conventional derivation would apply QED of course but ballistic theory replaces that so in your case you would have to write your own derivation using equations [2] and [3]. George, YOUR equation is trivial. The hard part is finding n(s) and r(s). My equation is the one given by ballistic theory. For n(s) and r(s) you need to look at material science as well. For example to predict the refractive index of diamond, you need to understand the crystal structure, and that isn't the province of your theory. relate to actual situations so for example for the pulsars we looked at, the value of n(s) is measured using the frequency dependence. In reality, r(s) cannot be measured since it doesn't exist. your opinion.... And that of all scientists, but it means you can't find the work done for you, you need to work it out yourself. We know the light will speed up if it is too slow and slow down if it is too fast so if v is large, the rate of change is negative while if the speed is low the rate is positive. That means v enters with a negative sign. The simplest form is first order and that will be at worst an adequate approximation as long as v c, and may be exact, so the basic form must be: dv/ds = A * (B - v) ..and dv/dt will also be = A * (B - v) since vc. Yes, and it would be a good excercise for you to see if you can work ou why I chose to use dv/ds instead of dv/dt. You'll need to learn some calculus to do that. ![]() Obviously n(s) and r(s) are much easier to consider as functions of distance, rather than time. Yes, that's one reason and perfectly valid, but there is another that comes purely from calculus. It's a bit more subtle and not a rigid requirement, it just make life a bit easier. where now R has units of distance. Hey presto Henry, you have equation [3]. Easy, wasn't it. ![]() Before smiling, bear in mind you have been touting your handwaving for ten years or more and in all that time you were never able to produce that equation while it only took me minutes. George, I have a mind that does these things automatically. I don't need any equations until I get the model right. The equations _are_ the model Henry, no equations means no theory. You being an engineer require an equation BEFORE you get the model right. Physicists provide engineers with equations. Exactly! So if you want to pretend you are a physicist, _you_ should be providing _me_ with rthe equations, not the other way round as it is at the moment. George, stop raving and derive n(s) and r(s) for the various situations please. I have already given you the link to the dispersion equation for n(s) from the Jodrell Bank site. There is no equation for r(s) but if you remember we found an upper value for the mean of r(s) from the pulsar data. This is supposed to be your theory so you have to write it yourself Henry, but I can tell you how I would approach it if I were you. There is NO clearcut equation for either. http://www.jb.man.ac.uk/~pulsar/tuto...ut/node14.html There are many different situations regarding the common EM sphere around binary pairs. I am talking about the ISM, not the region near the star. I suppose it wouldn't be too hard to describe what YOU are likening to a refractive index, n(s), as something like: 1-n = (1-n(o)).K/(s^3)....but that would be an oversimplification. The equation is given on the page above. r(s) would be hard to describe since it involves statistics. Light randomly speeds up and slows down as it travels.... We can regrad the universe as being turbulent like any rare gas. However, we can state that type(2) unification AFTER LEAVING THE STAR'S SPHERE requires that c+v+u - c-v+u. in other words the v - zero with distance. After unification, the velocity 'u' will also vary depending on the properties of the particular region of space the light happens to be in. The same applies within the sphere but you cannot assume r(s) is constant. An equation deriving r(s) from density could give you the overall formula by noting that the stellar wind is likely to fall off roughly as the inverse square (not quite since the material is being slowed by gravity but good for a first approximation). Work in the rest frame of the material and suppose we want to calculate r(s) for the ISM (in a solid the atoms are somewhat fixed so you need to consider vibrational modes and such like). A photon moving at initial speed c+Vi is propagating through space and hits a charged particle of mass M which is at rest. The photon carries momentum P which is transferred to the particle causing it to move with speed Va. Note that we need Va Vi for Vi 0. The particle then emits a photon with speed c relative to the particle, thus at speed Va+c which carries off some momentum P. The recoil slows the particle to Vb hence after the interaction some momentum has been transferred to the particle and the photon which was initially moving faster than c has lost momentum and has been slowed which looks good. I think that approach is too conventional. It is actually more general than you think. It can't account for the speeding up of light...even though it can explain the cosmic redshift. See later. To turn that into an equation derived from your theory, you need to first provide an equation that relates the photon momentum to its speed. Use that to find the initial P value, say P=f(c+Vi), use Va = P/M for the particle and then conservation of momentum gives P = M*Vb + f(c+Va). To get r(s) finally, you need to work out the number of such interactions per unit distance as a function of the density in a similar fashion to the pulsar formula I showed you for the refractive index. This is still the 'refractive index' approach. It is a particulate approach, nothing more. I maintain that unification involves MORE than ordinary matter. Typically the particles would be assumed to be the species observed, mostly electrons, protons, alpha particles etc. but there is no reason why it shouldn't apply to particles other than normal matter, all you need is the value of M which is the coefficient of the momentum to speed function for the particle. If a photon is a discreet particle, it must interact with its surroundings in order to change speed ...up or down... Yep, and the above deals with any particulate form of "surroundings". I still like the idea that a photon is basically a rapidly rotating pair of charges carving out a helix or some kind of spatial patern as they travel. Polarization has to be explained though. Polarisation is easy, your model is similar to a conventional circularly polarised signal and two can be combined to give linear polarisation. Where you have a problem is conceptually since your are trying to give a particle-based theory so there are no fields, the photon _is_ the field, so you end up with photons giving off photons, and experimentally you have to explain why we cannot detect the individual charges. There is a problem unfortunately, if you start with Vi 0 (e.g. a "c-v" photon) then the particle moves more slowly and the recoil means the same process speeds up the photon as you want, however the particle still gets a positive speed and the emitted photon has speed c after the interaction. Solving that one is your task, this is supposed to be your theory after all so I can't do it all for you. At least you are now trying rather than rejecting it outright.... Thanks George... Oh I reject it outright of course, Sagnac proves the whole idea is wrong from the start, but I am happy to teach you how to do physics for yourself. So the question is can you do the physics and solve the problem? I have given you a hint, if you use the same approach of breaking the equation down logically as I did to write equation [3], you will find the solution. The key is that you apply the method to work out the equation for the momentum of a photon as a function of its speed. See if you can do it yourself this time, if not I'll tell you the answer and show you how to do it again. George |
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