![]() |
| If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|||||||
| Tags: correction, gps, myth |
|
|
Thread Tools | Display Modes |
|
#11
|
|||
|
|||
|
On Sun, 31 Jul 2005 05:00:04 GMT, The Ghost In The Machine
wrote: In sci.physics.relativity, H@..(Henri Wilson) H@ wrote on Sun, 31 Jul 2005 00:48:13 GMT : On Fri, 29 Jul 2005 12:25:13 +0000 (UTC), bz wrote: H@..(Henri Wilson) wrote in : GR apparetly has a theory about why clocks should change rates when in different gravity potentials. I want a relativist to tell me exactly what that theory is. I am not a relativist. I have been looking for the relationship and I think it goes something like this: dt1/dt2 = sqrt((1-2 M G)/(c^2*r1))/sqrt((1-2 M G)/(c^2*r2)) I can tell you that from another formula, [solve the force from masses formula for, assuming the masses involved are the mass of the earth g] the 'g' force at the altitude for a geosync satellites is about 0.023g. The g force at GPS satellite altitude is about 0.057g. I don't want the formula for GR redshift... I want a description IN WORDS. What reason does GR give for the fact that clock rates appear to physically increase but don't? Clocks rates do *not* physically increase. (Assuming such a phrasing even makes sense.) The observer A, moving with the clock, notices nothing, even if both are being accelerated at 10g. (At more than 10g there are issues regarding human observers. This is assuming of course a clock that can withstand such accelerations without loss of accuracy.) Other observers (O) might notice a discrepancy, but A will not. (when viewed by either the original observer in the original frame or an observer who remains with the clock during launch). A notices nothing. O notices any discrepancies. [.sigsnip] So I can zoom of at 0.9c in my space ship with full confidence that I wont feel any pain as my feet shrink to a fraction of their normal size. great! geez, you people are really funny! How did Einstein get away with this for so long? HW. www.users.bigpond.com/hewn/index.htm Sometimes I feel like a complete failure. The most useful thing I have ever done is prove Einstein wrong. |
| Ads |
|
#12
|
|||
|
|||
|
"sue jahn" wrote in
: "bz" wrote in message 98.139... "sue jahn" wrote in : "bz" wrote in message 98.139... H@..(Henri Wilson) wrote in : On Fri, 29 Jul 2005 12:25:13 +0000 (UTC), bz wrote: H@..(Henri Wilson) wrote in m: GR apparetly has a theory about why clocks should change rates when in different gravity potentials. I want a relativist to tell me exactly what that theory is. I am not a relativist. I have been looking for the relationship and I think it goes something like this: dt1/dt2 = sqrt((1-2 M G)/(c^2*r1))/sqrt((1-2 M G)/(c^2*r2)) I can tell you that from another formula, [solve the force from masses formula for, assuming the masses involved are the mass of the earth g] the 'g' force at the altitude for a geosync satellites is about 0.023g. The g force at GPS satellite altitude is about 0.057g. I don't want the formula for GR redshift... I want a description IN WORDS. The description in words? Einstein described it: Mass distorts 'space-time'. 'space-time' the magic place where Maxwell radiates. http://farside.ph.utexas.edu/teachin...es/node13.html The more the mass, the greater the distortion. Yes that is how the blue lines on the paper are described. What reason does GR give for the fact that clock rates appear to physically increase but don't? Comparing clocks, from a location with one level of curvature, to a location with a different amount of curvature, will show you that the clocks measure 'something' at different rates. If you have clocks that will interact properly with the blue lines that should be true. They are kept next to the blue books in the book store. If you move with the clock, That will get foot prints on the paper. every tool you carry with you will undergo the same change [or no change, it depends on how you look at it]. You will be unable to tell that anything has changed [and 'really' it hasn't changed because you can't tell that anything has changed unless you look outside your FoR, or someone outside looks in.] I have doubts. Could we test your theory by walking on polar or grid paper before buying the special space-time paper? We have to use rubber sheets. (when viewed by either the original observer in the original frame or an observer who remains with the clock during launch). Every tool the observer who remains with the clock can carry with him, every tool that only allows him to look within his FoR, will show that the clock has not changed. Have you defined how each of these tools interacts with the blue lines. I think Einstein only defined for light-clocks and measuring rods. What do you suggest? Should the definitions be rigid? Must the clocks be light or can they be heavy? If he is NOT allowed to look at things outside his FoR, the clock has not changed. Can you exerpt that part: http://farside.ph.utexas.edu/teachin...es/node13.html I think I already did. [quote] In special relativity we are only allowed to use inertial frames to ..... configuration which will henceforth be termed a standard Lorentz transformation. [unquote] Is this about talking snakes or shrinking rulers. Did someone snake one over on us there? E_kin = 1/2 mv2 keeps snakes from talking and rulers from shrinking. Is that irrespective of perspective? The snake couple were bured in 'Hiss and Herse' coffins. Even if he looks, it doesn't change the clock. He does see that the clock isn't running at the same rate when he compares it to something outside his FoR. You can say the clock 'physically changes' if you want, but by every measure from within its FoR it has not changed, so your statement is wrong. You can say: a general Lorentz transformation preserves the volume of space-time. Since time is dilated by a factor in a moving frame, the volume of space-time can only be preserved if the volume of ordinary 3-space is reduced by the same factor. I may quote you on that, someday in the past. You may quote anything I say if you see me in four-space. http://arxiv.org/abs/physics/0204034 Four eyes let me see in four space. That gives me foresight. If I quote you, what will I be saying? http://farside.ph.utexas.edu/teachin...es/node14.html But the clock is definitly running at a different rate, when seen from outside, so YOU figure out what words you want to use to describe it. It is clear that in the particle's rest frame. Thus, corresponds to the time difference between two neighbouring events on the particle's world-line, as measured by a clock attached to the particle (hence, the name ``proper time''). According to Eq. (2.78), the particle's clock appears to run slow, by a factor , in an inertial frame in which the particle is moving with velocity . This is the celebrated time dilation effect. Now return to: http://farside.ph.utexas.edu/teachin...es/node13.html There were two ways given how we could define clocks in this *imaginary* space where Maxwell radiates. Neither were right, wrong, realistic or unrealistic. We could have used a different well know set of ruled in *designing* the space and legitimately call it Hilbert space. "Neither were right, wrong, realisitic or unrealistic." Just make sure that your words match with what has been observed and what is observable. Neither of you (Bz and Henri) have defined the interaction of your clocks with either a general Lorentz transformation or a standard Lorentz transformation so they are neither observables nor some you can derive rules for. You say things so well, at times. You can not observe that the clock 'has changed physically' because anytime you take it back to where it started from and test it against any standard you like, you will find it is still running at the same rate it was running before you moved it. Clocks in *space-time* (the place where Maxwell radiates) have no physical existence to change. If a given situation in electromagnetism is attributed to a scalar potential ( x,t ) and a vector potential A( x ,t ), the physically meaningful and unique electric and magnetic fields E( x,t ) and B( x,t ) are determined from the potentials according to eq(1.1) Here we are using Gaussian units and considering phenomena in vacuum or as microscopic fields with localized sources. The expressions (1.1) are constituted so that they satisfy the homogeneous Maxwell equations automatically. Since the gradient of a scalar function has zero http://arxiv.org/abs/physics/0204034 I am still working on understanding that paper, I don't understand what ANY of that stuff has to do with 'g' as it is not [as far as we know] electric or magnetic. Is there some particular gauge that gives us the gravity metric, advanced, retarded or normal? applause [takes bow. Has wardrobe malfunction and falls from podium] Surely You're Joking, Mr. Feynman! For your next trick, Janet, [sound theme song from the RHPS and lets do the time warp again] please critique ... http://www.circlon-theory.com/HTML/FallingClocks.html What does maxwell/einstein say about two orbital clocks in counter rotating motion in essentially the same orbital [we must assume they miss each other]. -- bz please pardon my infinite ignorance, the set-of-things-I-do-not-know is an infinite set. remove ch100-5 to avoid spam trap |
|
#13
|
|||
|
|||
|
"sue jahn" wrote in
: "bz" wrote in message 98.139... The Ghost In The Machine wrote in news
in particular specifies a LHC top proton energy of 7 TeV, which well exceeds the required energy for lightspeed. However, last I looked (I'm having trouble finding it now) the beam frequency was consistent with *photons* traveling around the ring (within perhaps a few parts per million or billion), as opposed to protons going many times FTL. Within 36 ppb of c, if my figures are correct. We have a syncrotron at lsu, see www.camd.lsu.edu, that runs at about 1.5 GeV, which, if my calculations are correct, should, if c were not the speed limit, give us electrons traveling at about 76.6 c. But the electrons are traveling at about 0.99983 c [again, if my calculations are correct]. ...and what happens to enforce the speed limit? ;-) You know whacha get when you cross an elephant with a rhino? 'El-if-I-know' No one knows for sure. But the electrons seem to know they will get fined if they go too fast. They also seem to gain 'mass' as they approach the speed of light. -- bz please pardon my infinite ignorance, the set-of-things-I-do-not-know is an infinite set. remove ch100-5 to avoid spam trap |
|
#14
|
|||
|
|||
|
H@..(Henri Wilson) wrote in
: So I can zoom of at 0.9c in my space ship with full confidence that I wont feel any pain as my feet shrink to a fraction of their normal size. great! geez, you people are really funny! How did Einstein get away with this for so long? Yer head shrinks by the same amount [as see from your former FoR, before you accelerated to 0.9c] so you don't notice. -- bz please pardon my infinite ignorance, the set-of-things-I-do-not-know is an infinite set. remove ch100-5 to avoid spam trap |
|
#15
|
|||
|
|||
|
"bz" wrote in message 98.139... "sue jahn" wrote in : "bz" wrote in message 98.139... The Ghost In The Machine wrote in news
in particular specifies a LHC top proton energy of 7 TeV, which well exceeds the required energy for lightspeed. However, last I looked (I'm having trouble finding it now) the beam frequency was consistent with *photons* traveling around the ring (within perhaps a few parts per million or billion), as opposed to protons going many times FTL. Within 36 ppb of c, if my figures are correct. We have a syncrotron at lsu, see www.camd.lsu.edu, that runs at about 1.5 GeV, which, if my calculations are correct, should, if c were not the speed limit, give us electrons traveling at about 76.6 c. But the electrons are traveling at about 0.99983 c [again, if my calculations are correct]. ...and what happens to enforce the speed limit? ;-) You know whacha get when you cross an elephant with a rhino? 'El-if-I-know' No one knows for sure. Ghost seems to know. Did you read his post? Sue... But the electrons seem to know they will get fined if they go too fast. They also seem to gain 'mass' as they approach the speed of light. -- bz please pardon my infinite ignorance, the set-of-things-I-do-not-know is an infinite set. remove ch100-5 to avoid spam trap |
|
#16
|
|||
|
|||
|
In sci.physics.relativity, H@..(Henri Wilson)
H@ wrote on Sun, 31 Jul 2005 21:12:54 GMT : On Sun, 31 Jul 2005 05:00:04 GMT, The Ghost In The Machine wrote: In sci.physics.relativity, H@..(Henri Wilson) H@ wrote on Sun, 31 Jul 2005 00:48:13 GMT : On Fri, 29 Jul 2005 12:25:13 +0000 (UTC), bz wrote: H@..(Henri Wilson) wrote in m: GR apparetly has a theory about why clocks should change rates when in different gravity potentials. I want a relativist to tell me exactly what that theory is. I am not a relativist. I have been looking for the relationship and I think it goes something like this: dt1/dt2 = sqrt((1-2 M G)/(c^2*r1))/sqrt((1-2 M G)/(c^2*r2)) I can tell you that from another formula, [solve the force from masses formula for, assuming the masses involved are the mass of the earth g] the 'g' force at the altitude for a geosync satellites is about 0.023g. The g force at GPS satellite altitude is about 0.057g. I don't want the formula for GR redshift... I want a description IN WORDS. What reason does GR give for the fact that clock rates appear to physically increase but don't? Clocks rates do *not* physically increase. (Assuming such a phrasing even makes sense.) The observer A, moving with the clock, notices nothing, even if both are being accelerated at 10g. (At more than 10g there are issues regarding human observers. This is assuming of course a clock that can withstand such accelerations without loss of accuracy.) Other observers (O) might notice a discrepancy, but A will not. (when viewed by either the original observer in the original frame or an observer who remains with the clock during launch). A notices nothing. O notices any discrepancies. [.sigsnip] So I can zoom of at 0.9c in my space ship with full confidence that I wont feel any pain as my feet shrink to a fraction of their normal size. Assuming you're willing to wait for about a month to a year to accelerate to 0.9 c, yes, you won't feel a thing. (Except for the acceleration, of course.) I, however, will notice that you: [a] are moving very slowly, and [b] are squished in the direction of travel. great! geez, you people are really funny! How did Einstein get away with this for so long? You'll have to ask him. Since he's dead, there may be some slightly practical difficulties in doing so... :-) [.sigsnip] -- #191, It's still legal to go .sigless. |
|
#17
|
|||
|
|||
|
In sci.physics.relativity, sue jahn
wrote on Sun, 31 Jul 2005 20:45:27 -0400 : "bz" wrote in message 98.139... "sue jahn" wrote in : "bz" wrote in message 98.139... The Ghost In The Machine wrote in news
in particular specifies a LHC top proton energy of 7 TeV, which well exceeds the required energy for lightspeed. However, last I looked (I'm having trouble finding it now) the beam frequency was consistent with *photons* traveling around the ring (within perhaps a few parts per million or billion), as opposed to protons going many times FTL. Within 36 ppb of c, if my figures are correct. We have a syncrotron at lsu, see www.camd.lsu.edu, that runs at about 1.5 GeV, which, if my calculations are correct, should, if c were not the speed limit, give us electrons traveling at about 76.6 c. But the electrons are traveling at about 0.99983 c [again, if my calculations are correct]. ...and what happens to enforce the speed limit? ;-) You know whacha get when you cross an elephant with a rhino? 'El-if-I-know' No one knows for sure. Ghost seems to know. Did you read his post? I have half a clue. However, that doesn't mean I know *why* everything conforms to SR/GR and not to Newtonian mechanics. I may never know why. :-) In any event, it's the wrong question anyway; the theory must fit the observations, not the other way around. One of the observations is that synchrotrons, tokamaks, and other such devices can't seem to get particles going past lightspeed, even when one pours energy into them far in excess of what the Newtonian limit requires. For example, m_p = the mass of a proton = 1.672 621 71(29) * 10^-27 kg, according to http://physics.nist.gov/cgi-bin/cuu/Value?mp . 1/2 * m_p * c^2 = 7.51638712 * 10^-11 J = 469.13602 MeV. That's all the energy one needs to accelerate a proton to lightspeed -- in theory. (Newtonian theory, anyway.) [rest snipped] -- #191, It's still legal to go .sigless. |
|
#18
|
|||
|
|||
|
"The Ghost In The Machine" wrote in message ... In sci.physics.relativity, sue jahn wrote on Sun, 31 Jul 2005 20:45:27 -0400 : "bz" wrote in message 98.139... "sue jahn" wrote in : "bz" wrote in message 98.139... The Ghost In The Machine wrote in news
in particular specifies a LHC top proton energy of 7 TeV, which well exceeds the required energy for lightspeed. However, last I looked (I'm having trouble finding it now) the beam frequency was consistent with *photons* traveling around the ring (within perhaps a few parts per million or billion), as opposed to protons going many times FTL. Within 36 ppb of c, if my figures are correct. We have a syncrotron at lsu, see www.camd.lsu.edu, that runs at about 1.5 GeV, which, if my calculations are correct, should, if c were not the speed limit, give us electrons traveling at about 76.6 c. But the electrons are traveling at about 0.99983 c [again, if my calculations are correct]. ...and what happens to enforce the speed limit? ;-) You know whacha get when you cross an elephant with a rhino? 'El-if-I-know' No one knows for sure. Ghost seems to know. Did you read his post? I have half a clue. However, that doesn't mean I know *why* everything conforms to SR/GR and not to Newtonian mechanics. I may never know why. :-) In any event, it's the wrong question anyway; the theory must fit the observations, not the other way around. This is what is observed. http://imagine.gsfc.nasa.gov/Images/...ynchrotron.gif From: http://imagine.gsfc.nasa.gov/docs/sc...ration_el.html and Bz: "Absent relativist mass, the electrons would be going about 77 c." http://groups-beta.google.com/group/...72c6600?hl=en& so ... E_kin = 1/2 mv^2 is closer than Bz's interpretation. Just at the moment Bz has a vertical shaft running at multiple speeds to keep twins metabolism in compliance and he can show you Coulomb forces in the acceleratior that will move our sun at least into Venus's orbit. So E_kin = 1/2 mv^2 is plenty close enough... ;-) Sue... One of the observations ...is that synchrotrons, tokamaks, and other such devices can't seem to get particles going past lightspeed, even when one pours energy into them far in excess of what the Newtonian limit requires. For example, m_p = the mass of a proton = 1.672 621 71(29) * 10^-27 kg, according to http://physics.nist.gov/cgi-bin/cuu/Value?mp . 1/2 * m_p * c^2 = 7.51638712 * 10^-11 J = 469.13602 MeV. That's all the energy one needs to accelerate a proton to lightspeed -- in theory. (Newtonian theory, anyway.) [rest snipped] -- #191, It's still legal to go .sigless. |
|
#19
|
|||
|
|||
|
"sue jahn" wrote in
: "bz" wrote in message 98.139... snip ..... ...http://arxiv.org/abs/physics/0204034.... I am still working on understanding that paper, I don't understand what ANY of that stuff has to do with 'g' as it is not [as far as we know] electric or magnetic. Is there some particular gauge that gives us the gravity metric, advanced, retarded or normal? 20. A. K. T. Assis, "Deriving gravitation from electromagnetism," Canadian Journal of Physics, Vol. 70, pp. 330-340 (1992). Abstract: We present a generalized Weber force law for electromagnetism including terms of fourth and higher orders in v/c. We show that these extra terms yield an attractive force between two neutral dipoles in which the negative charges oscillate around the positions of equilibrium. This attractive force can be interpreted as the usual Newtonian gravitational force as it is of the correct order of magnitude, is along the line joining the dipoles, follows Newton's action and reaction law, and falls off as the inverse square of the distance. http://www.ifi.unicamp.br/~assis/wpapers.htm But gravity is isotropic [AFAWK] and all of my attempts to build isotropic dipoles have flopped. [They keep falling over.] That would seem to leave a bit of a black hole in their theory. Webber almost makes more sense with his 'electrostatic attaction slightly greater than electrostatic repulsion'. But anti matter shoots holes in that. applause [takes bow. Has wardrobe malfunction and falls from podium] Surely You're Joking, Mr. Feynman! For your next trick, Janet, [sound theme song from the RHPS and lets do the time warp again] please critique ... http://www.circlon-theory.com/HTML/FallingClocks.html The clock mechanism is not specified so that it can relate to any physical phenomena.. So I conclude it is actualy the article which falls. ) I did think their building clocks with the 'specific gravity' of air was interesting. I think they are sending up a trial balloon to see who is in caloots. What does maxwell/einstein say about two orbital clocks in counter rotating motion in essentially the same orbital [we must assume they miss each other]. Probably nothing. Maxwell/Einstein is about the forces between relative moving particles so why should it talk about clocks? BBBut, I thought AE went to a lot of trouble to talk about clocks.... ![]() -- bz please pardon my infinite ignorance, the set-of-things-I-do-not-know is an infinite set. remove ch100-5 to avoid spam trap |
|
#20
|
|||
|
|||
|
"sue jahn" wrote in
: "The Ghost In The Machine" wrote in message ... In sci.physics.relativity, sue jahn wrote on Sun, 31 Jul 2005 20:45:27 -0400 : "bz" wrote in message 98.139... "sue jahn" wrote in : "bz" wrote in message 98.139... The Ghost In The Machine wrote in news
in particular specifies a LHC top proton energy of 7 TeV, which well exceeds the required energy for lightspeed. However, last I looked (I'm having trouble finding it now) the beam frequency was consistent with *photons* traveling around the ring (within perhaps a few parts per million or billion), as opposed to protons going many times FTL. Within 36 ppb of c, if my figures are correct. We have a syncrotron at lsu, see www.camd.lsu.edu, that runs at about 1.5 GeV, which, if my calculations are correct, should, if c were not the speed limit, give us electrons traveling at about 76.6 c. But the electrons are traveling at about 0.99983 c [again, if my calculations are correct]. ...and what happens to enforce the speed limit? ;-) You know whacha get when you cross an elephant with a rhino? 'El-if-I-know' No one knows for sure. Ghost seems to know. Did you read his post? I have half a clue. However, that doesn't mean I know *why* everything conforms to SR/GR and not to Newtonian mechanics. I may never know why. :-) In any event, it's the wrong question anyway; the theory must fit the observations, not the other way around. This is what is observed. http://imagine.gsfc.nasa.gov/Images/...ynchrotron.gif Only in the portions of the syncrotron where the beam is being bent. In the linear accelerator sections, the beam is gaining energy. From: http://imagine.gsfc.nasa.gov/docs/sc...ration_el.html and Bz: "Absent relativist mass, the electrons would be going about 77 c." 1.5 GeV electrons should be going 76.6 c in a purely Newtonian universe. http://groups-beta.google.com/group/...msg/9fe549e357 2c6600?hl=en& so ... E_kin = 1/2 mv^2 is closer than Bz's interpretation. Just at the moment Bz has a vertical shaft running at multiple The shafts are YOUR addition the the experiment. I was perfectly happy sending the clock times back and forth in morse code at 30 wpm. speeds to keep twins metabolism in compliance and he can show you Coulomb forces in the acceleratior that will move our sun at least into Venus's orbit. So E_kin = 1/2 mv^2 is plenty close enough... ;-) Sue... One of the observations ...is that synchrotrons, tokamaks, and other such devices can't seem to get particles going past lightspeed, even when one pours energy into them far in excess of what the Newtonian limit requires. For example, m_p = the mass of a proton = 1.672 621 71(29) * 10^-27 kg, according to http://physics.nist.gov/cgi-bin/cuu/Value?mp . 1/2 * m_p * c^2 = 7.51638712 * 10^-11 J = 469.13602 MeV. That's all the energy one needs to accelerate a proton to lightspeed -- in theory. (Newtonian theory, anyway.) [rest snipped] -- bz please pardon my infinite ignorance, the set-of-things-I-do-not-know is an infinite set. remove ch100-5 to avoid spam trap |
| Thread Tools | |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| GPS 'GR Correction' Myth. | Henri Wilson | Physics - General Discussion | 1056 | August 19th 05 07:25 PM |
| GPS 'GR Correction' Myth. | Androcles | Physics - General Discussion | 0 | August 7th 05 01:32 PM |
| GPS 'GR Correction' Myth. | bz | The Theory of Relativity | 7 | August 1st 05 09:41 PM |
| GPS 'GR Correction' Myth. | Randy Poe | The Theory of Relativity | 1 | July 31st 05 04:04 AM |
| GPS 'GR Correction' Myth. | Henri Wilson | The Theory of Relativity | 325 | July 15th 05 04:56 PM |