|
|
Thread Tools | Display Modes |
#161
|
|||
|
|||
Gravitation and Maxwell's Electrodynamics, BOUNDARY CONDITIONS
"George Dishman" wrote in message ...
"Sergey Karavashkin" wrote in message om... "George Dishman" wrote in message ... "Sergey Karavashkin" wrote in message om... The same in your discussion with George Dishman. I don't discuss his position: he is supporter of photon theory, so his task is to negate the wave physics anyway. You misrepresent me Sergey. If I am considering diffraction, interference, refraction or other phenomena I treat EM as waves. If the photon model is more appropriate I will use that. For example if I want to know what I will see if I bounce a laser off the moon, I will divide the pulse energy by hv and calculate the probability of getting different numbers of photons in the light collector. The question is, how do you formulate the phenomenology of vibration process. Opposing your seeing to George's opinion on dominating role of boundary for resonance, ... I don't consider a boundary to have a "dominating role" directly, rather I would point out that resonance requires that some energy be carried forward from one cycle of the oscillatory system to the next otherwise you merely have "forced oscillations". That can be achieved in many ways but it is very unusual for it not to define boundary conditions as well as containing the energy. George Dear George, Perhaps I actually misunderstand you. I'll try to explain in one respond to both your posts. On one hand, you are right indeed confirming elastic line with massive constraints to be linear system. Really, when forced vibrations, the frequency will not be multiplied. Only the resonance peaks will be shifted because of resonance of subsystem in elastic constraints. At the same time, considering free vibrations, in such system not one harmonic but few at once will resonate - just as in an ideal string under free vibrations caused by a pick there is present a broad discrete spectrum of harmonics. All the overtones that create unique sound of instruments are created by string and only amplified by the frame. This all is so. At the same time, the fact that conventional techniques are unable to solve the problems with massive constraints misled very many people and they considered such linear problems as nonlinear - and I said you this. That's a fairly good summary of what I have said and I agree with it all. On this background, in another place you are saying, opposing Aleksandr: [George] I say that it is not "indispensable" and that resonance commonly occurs in systems where the power is absorbed by a linear element such as a resistor. [Sergey] Actually, to excite resonance vibrations, nonlinear transformer of energy is not necessary in general case. But the energy absorption by resistance of the system has no relation to resonance phenomena. I agree entirely. On the contrary, the increase of resistance of the system strongly decreases resonance peaks. It can also slightly alter the resonant frequency but that is usually a very minor effect. Of course, it can, and not always this effect is small. Simply compound resistant systems are unsolvable by conventional techniques, and even in simple systems the existing solutions "don't see" even a half of problem. ;-) To make sure, please visit two pages of our paper "Some features of vibrations in homogeneous 1D resistant elastic line with lumped parameters" http://angelfire.lycos.com/la3/selft.../resist21.html http://angelfire.lycos.com/la3/selft.../resist22.html and see Fig. 1 and 2 where we showed the amplitude-frequency and phase-frequency characteristics of infinite elastic resistant line. One cannot yield these characteristics with conventional techniques, as well as group velocity characteristic shown in Fig. 4, page 25 http://angelfire.lycos.com/la3/selft.../resist25.html This is why colleagues think that group velocity is senseless under overcritical frequency. But it exists and is finite. ;-) For finite resistant lines the amplitude-frequency characteristics will be other, one can build them also only being aware of our methodology. I'll write below about it. Another thing that at the resonance frequency the impedance of system becomes active (true, only in quite simple circuits). But it doesn't mean that just it absorbs the energy which determines resonance vibrations. Amplitude of resonance vibrations is some balance between the exciting force and dissipative ability of the system. The more conservative is system the more will be vibration amplitude. Yes, for example in an RLC circuit, the amplitude is approximately Q times what the input power would produce if directly connected to the resistor. From conservation, if a fraction 1/Q is lost per cycle, the amplitude will be Q times greater to balance the power lost to dissipation with that obtained from the input. I am sure you also know why this leads to the amplitude approaching the steady-state level exponentially on the sudden application of an input. This is a clear example of the energy stored in the system being accumulated over time from a low-power source. This all is correct. Stonehenge swung by a child. ;-) Under resonance, the resistance of vibration system will only decrease the amplitude. Again, you are wondering, what is the difference in your and my seeing of a child on the waves. We agree, a child, a boat, water and outer source that excites waves are the elements of some common system in which we consider vibrations in this case. However you separate the resonance phenomenon from vibration system but I don't. Not quite. We were discussing Sean's term "wave phenomenon" and I separate the things producing the effect, the water, boat and child, from what is produced by the effect, the pattern of interference and the phenomenon of resonance. This is just what we may not do. We may not separate the system from processes occurring in it, or processes lose their physical causation and with it - the solution of problem and understanding of process. Supporters of Lagrangian approach did so and lost important solutions. They don't understand it, the same as photon theory supporters don't understand that they defend an absurd, but this is so. To call resonance the independent phenomenon is the same as to try hearing the sound of guitar when it's absent here. If you heard it before, you can imagine this sound, but if your opposite person never heard guitar but knows how banjo sounds, he will associate your attempts to explain how guitar sounds with the sound of banjo. ;-) Any vibration system has very versatile kinds of vibrations which scientists at due time have classified by their features and revelations, but all these kinds are realised only at different conditions and are inseparable from the system in which they arise. We considered the channel and saw how one forms of vibrations transit to another and that there is no difference between vibrations and wave processes. All these are vibrations, and the kind of vibrations can be different. So it is fully ignorant to assert as David does that atom is non-resonant system (the starting point of this discussion on resonance). Atom is quite resonant system, and the fact that Niels Bohr's resonance calculations have fully coincided with the experiment only corroborates this. Yes, I agree, I also pointed that out to Sean. Where I disagreed was when you described the child as a "wave phenomenon" which means that the child is produced by the waves. The child is part of the system that oscillates as a result of the waves but obviously the child would still exist if there were no waves. Here I didn't understand you. It is second time now when you are attributing to me what I didn't say, and first time you already agreed, waves don't create water, a boat, a child neither. Another matter, when we consider a child in a boat as some resonance subsystem and wave frequency coincides with the resonance frequency of this subsystem, the pattern of interaction "waves - subsystem" will not sufficiently change. The same in atom. If the exciting EM field comes to resonance with the period of electron's rotation in orbit, the total pattern will essentially change. (To the point, you yourself identified resonance as the in-phase addition of vibrations coming from boundaries and external excitation; but here it appears, there is no resonance? ;-) But here they are added, too. If the electron during its rotation comes not in phase with external field, its orbit will not grow.) Dependently on frequencies ratio, we will identify this pattern with re-emission, reflection either with absorption of the energy. You hardly could say it to Sean, as you yourself understand and know this pattern not to the end point. I'm sorry to say, but this is so. ;-) I can hardly judge what Aleksandr means saying the nonlinear transformer necessary, I believe he was saying that the blackbody spectrum of heat radiated by a resistor is not linear but that, although true, is not the usual criteria for defining a system as non-linear, it is based on the equation that defines the motion. If so, this is really so. And the cause is the nonlinearity of resonance system of atoms (however much we idealise the black body, it consists of some atoms ;-) ). However this has no concern to the fact that to excite oscillations, we need some nonlinear transformer. I think, only Aleksandr can make more clear, what he meant. but the system of atom is not so simple as it seems to you. Bohr couldn't advance above the energetic description of orbits, the Schroedinger equation is also limited by that level of knowledge. But what is the orbital electron excitation by external EM field? Of course, you are right when saying, [George] any change in the energy of an orbiting electron in such a model would be likely to affect the radius of the orbit. But not only. When EM wave excited atom, the wave would be unable to enlarge the electron's orbit, should the system of atom be linear. We have also to account that the size of electron's orbit is determined by its kinetic energy and the frequency of its spin is much higher than that of the affecting force. More importantly, you have to take into account that it seems that the parameters can only have discrete values. We have no necessity in it. Just this reveals your affection for QM dogmata which permanently comes to light and confuses your logic. ;-) I showed you phenomenologically, how an external field excites an orbital electron. This field, by the way, can be stationary. On the account of nonlinear atomic bonding the electron will also be excited, up to emission from atom (or from the surface of metal, dielectric or semi-conductor). ;-) To understand it, you need only the amount of information from the course of field theory - to calculate it, of course, is more complex task. ;-) For a violin string, the wavelength is related to the length between bridge and fret but the amplitude can take any value. That is not the case for the atom, there seems to be no continuously variable parameter that could be gradually increased. Why, there in atom is the permanently varying parameter - this is the electron's orbit transforming under affection of external field. This is where I think the idea of resonance as a means to explain the photoelectric effect in the way that Sean seems to be suggesting will prove to be most difficult. No, simply Sean's analogies of process are very far and incomplete. There is another complication to prove it - QM supporters don't want to hear any arguments. Look at David. To prove that just he is right, he already came to deleting the opponent's arguments. Further we will see him furious. ;-) So per one revolution the external field will vary negligibly. If we consider E-component, this feature will make the electron's orbit swinging! If the swing period coincides with that of external E-field, the amplitude of these swings will grow, will not it? ;-) Should the system of atom be linear, the interaction would be confined to it. But a very important feature superimposes on it. When in some part of trajectory the field removes the electron from nucleus, the returning force will decrease! And when it brings the electron closer to the nucleus, the force grows. And these variations obey the quadratic regularity. Due to it the trajectory of the orbit deforms and the electron gains additional kinetic energy, changing the diameter of orbit. The magnetic component of the external field, if it is perpendicular to the orbital plane, will make the orbit pulsing. Thus, E and H components affect so that if the period of pulses coincides with the period of external field, these pulses will increase. Is this resonance or not? That depends. If it is resonance, the orbit should be able to gradually change from one energy level to another as it absorbs energy over many cycles. Here again 'hoofs' are seen. ;-) In this case you are proceeding not from the process but from Planck's postulate which supporters of QM have dogmatised. If we proceeded from the process as I described it, this is really resonance interaction and electron 'absorbs' the energy of many cycles. There is a nuance which even the experts in wave theory don't notice, as they 'have not been taught' to work with analytical solutions. When the system superimposing many vibrations absorbs the energy, each new reflection changes the input impedance, and further the system absorbs energy not so much. The resonance amplitude is formed on two processes that meet each other. On one hand, this is the absorption of energy coming into synphasely, and on the other - decrease of absorption with growing resonance amplitude. Just from this point there appears the exponential regularity of which you are speaking below. This is very simple to understand, if we return to a child on the swing. We often see how kids helplessly wallow on the swing, until they learn to change their momentum of inertia in time. They spend lot of energy, and the swing absorbs it without any vibration. But when they learn, even small energy will increase the amplitude, but kids have no power enough to achieve maximal amplitude, even if they move properly. What's the cause? Friction? This also, but the main, the conditions of vibration change with the amplitude, and to achieve a full rotation, a child would have to develop enough speed. The same in atom. If it is driven from one stable orbit to another immediately, or if the composite is simply a combination of the orbit plus the applied field, then is is not resonance but forced oscillation. First, "if ...", it would be possible, but in case "if ...". ;-) Second, if there occurred such transfer which is very convenient for photon theory supporters (you of course are not among them? ;-) ), there appears a very long turn of questions from which the supporters of photon theory flit very fast. Among them: 1. What it means - "electron absorbs photon"? Is this collision inelastic? Then let us calculate the direction of total momentum. ;-) Let us take into account that according to EM field theory, transverse E-field displaces the electron ACROSS its propagation. How will it correlate with an inelastic collision? ;-) 2. What it means - "instant absorption"? Quantum is just the energy necessary for complete transition. Instant absorption implies the point size of photon; with it a new series of questions comes to light: 2.1. Is the wave monochromatic; 2.2. Relation between the photon's period and wavelength; 2.3. Is the photon uncharged, and so on, so on. I don't think you would be happy to run the same rings as David does - too wearisome and hopeless business. ;-) Third, the concept "forced vibrations" belongs to another classification than "resonance". Resonance takes place at free, forced and auto-vibrations. Each case has its features, but none the less, these are different classifications. ;-) But this is not the resonance which we observe in linear systems. I would add, the field of electron will effectively compensate the external field only in case if these periods are divisible. Here also is superimposed a feature related to the increasing force of atom. In the conventional interpretation this associates with the energy absorption, as the trajectory grows. At the same time, under definite relationship between the periods, we will observe pulsation and swing of the electron's orbit opposite in phase of the external field, and then the electron begins to emit either to reflect the energy. In sum, there are many problems. The main difficulty in the problem under consideration is caused by the quadratic dependence of the field of nucleus which makes the problem nonlinear and very complicated in solving. You are correct in all you say there, but I think the greater problem is that we cannot detect any intemediate energy states. Why at all should we determine these intermediate states of energy? Electron quite quickly transits from one energetic level to another. The levels of super-thin fission are also observed. The fact that so-called quantum not so much strongly corresponds to Planck formula as it is postulated is long ago known experimentally, it is sufficient to see the red boundary of luminescence - for example, in Fig. 10 of our paper "On the nature of red shift of Metagalaxy" http://selftrans.narod.ru/v3_1/hubbl.../hubble45.html to have no illusions as to such postulates. You cannot gradually and smoothly increse the energy in the orbit from one level to another, it appears to jump instantly between the levels. How you colleagues have got accustomed it to jump! And what's the time duration of its jump? Does it correspond to the EM wave period or not? ;-) Or "instantaneously" means "at once"? And what about inertia of electron? Can it jump not from the nucleus but vice versa? And how is the quantum added with inclined motion of electron at the instant of jumping? If the electron has been blurred, what absorbs what, at all, and how?! To the point, if the photon absorption occurred by way of its collision with electron, photon interacts with the nucleus, too! And what concern has the value h*nu to the nucleus? ;-) And the nucleus has much more cross-section of scattering - it means, it has to absorb much more photons. It means, light more excites the nucleus than the orbits of electrons. Ooh, are you still controlling this inexhaustible flow of questions? ;-) I showed far from all features of interaction, but none the less, it is not simple problem. David thinks, one can so easy tell it in the newsgroup for so unaware in theory guy as he is, with his insistent unwilling and inability to listen, to analyse and to understand! The task unrealisable even for titans, what to say of us ordinary mortals. ;-) Some time ago I tried to show to Bilge that interference means geometrical addition of E-field vectors... He still remained asserting, if in Bose-Einstein statistics there have been laid the algebraic summation of boson energies, this is so in reality. Concerning the boundary conditions. For the resonance we surely need to localise the energy in space with minimal dissipation. Yes, that is the point I was trying to convey to Sean. In linear systems it corresponds to finite lines. In circular systems the resonance arises with multiple superposition of periods of waves propagating in the ring. Here we haven't the boundaries in usual meaning. Exactly, it can be cyclical, the signal propagating round the orbit must return to the start point in phase with the original. In vibration systems of atoms the resonance arises in case when swing periods of orbits coincide with affecting force periods. There are no boundaries in usual meaning. Exactly, that is why I said (quoted at the top of this post): I don't consider a boundary to have a "dominating role" directly, rather I would point out that resonance requires that some energy be carried forward from one cycle of the oscillatory system to the next otherwise you merely have "forced oscillations". ... Merely forced oscillations also can be resonant. ;-) One cannot guess it, but all these features are reflected in modelling system of equations, if we use not some abstractly generalised template but specific system of differential equations for the specific vibration system. With such approach, ADDITIONAL giving the boundary conditions is excessive. Just in such context I said you about boundary conditions and repeated it multiply in the newsgroups before. Additional boundary conditions only duplicate the features which we have to reflect in the very system of equations. And I can repeat, we can "guess" the boundary conditions only for most simple vibration systems (not for all). For complex systems with mismatched transitions it is simply impossible. I know, I am working on a project with such a problem. Luckily it is not a major part of the system and I can use other techniques to get round it but we have to build a simulator Simulator is a very good thing, indeed, but no one simulator is able to match the phase-dependent boundary. You can yield it only having the problem solved. And in the vibration theory you never know finally, which condition at the boundary is actually the most important for you. Vibrations like much to 'punish' us by summing the phases and multiple reflections from interior heterogeneities. ;-) and I stated at the beginning this could not be included. George, I cannot catch the meaning of this your phrase, sorry. ;-) It means, we have to be not lazy and to solve the system in the form which describes the specific model. We in our laboratory make so quite successfully and wish you all to do so. ;-) As to the resonance of subsystems. The matter is, factually the resonance subsystems essentially affect the amplitude-frequency characteristic of the main system. If its resonances are located above the critical frequency of the main system, they will appear in the region overcritical for the main system. If its resonances are in the region of main resonances, this leads to essential shift and distortion of the main resonances. If the resonances of subsystem are located below the resonances of the main system, in the amplitude-frequency characteristic there appear the absorption lines. Thus, we can control the resonances of subsystem both theoretically and practically. In my previous post I mentioned one of simplest cases of wave transformer. As far as I know, it matches well enough. ;-) And this is far from being the limit of possible. If the colleagues were thinking of the problems, not of their ambitions, we could do so much and solve many problems. But things are such as they are. ;-) Indeed, I answered not all your questions, and probably now you have even more questions than I lifted. Well, this is natural. Colleagues try to read the book from its end, while it is written from the beginning. Naturally, many things remain for them strange. Though this is their wish. All what I can I try to adopt to the level understandable for them, but it's too hard to squeeze the camel into a needle eye. ;-) In many ways Sergey I think we are entirely in agreement. The few places we have disagreed, I could put down to differences in language, not differences in our physics. Undoubtedly, and perhaps we would finely complement each other in research. And there is nothing unsolvable in language, as it said Carlson that lives on the roof. I think, if you knew more of technique on which I base my analysis, you would less entrust to dogmas that appeared just because the scientists of that time have run into a strong difficulty. They constructed a temporary building of postulates; now today scientists are guided just as the tourists along this "Great Chinese Wall". ;-) best regards George Best to you, Sergey. |
#162
|
|||
|
|||
Gravitation and Maxwell's Electrodynamics, BOUNDARY CONDITIONS
\(formerly\)" dlzc1.cox@net wrote in message news:_W3fb.38127$gv5.17852@fed1read05...
Dear Sergey Karavashkin: "Sergey Karavashkin" wrote in message om... David, What for have we to play Bilge? You see, he came and went away with the same - to normalise his longitudinal photons with respect to energy (if only he is able to do any thing with respect...). We also will not analyse your flights along my questions. As well as, who actually flew from one topic to another and made appearance that nothing of the kind. I provided a corrected diagram of a metal structure. A correct analogy (or circuit) will be coupled at 3 and 4 steps, which will destroy resonance. You are dodging the truth. And I spent a lot of time on the diagram. Oh well... What a diagram? Where? You said me nothing of it. And if you already provided the diagram, why don't you know, 3 or 4 steps will give a correct analogy? Let us stop on one item - your awareness in vibration theory; by this we will judge, whether you have grounds for your categorical assertions. To make so, let us copy-and-paste that place from my text which you snipped in order to blur your answer and to blame me that you are not aware in these matters. You have an incorrect model. You are hiding. See my posting with George Dishman in this thread. When I see one able to perceive, I write at the level one is able to perceive, and so much as one is able to perceive. While from you I still see only your unwilling to hear and to see whatever inconvenient for you. So you may not take offence. ;-) ... Thus, I repeat my question: PLEASE DO SHOW ME, HOW I MADE IT. You made it based on a circuit that does show resonance, No, David, in the circuit theory they also cannot solve such problems. We have solved the mechanical problem whose solution you hopefully saw, applied our original dynamical electromechanical analogy DEMA which is described in that paper, and converted these solutions into the problem of oscillations in electric circuit. So the solutions you cannot yield we yielded just for mechanical model. but does not agree with any known *physical* model of bonding in metals. Find how your model describes reality. It has no relation to bonding in metals. Should you really be interested in the matter, not in "struggle against the different mind in physics", you would read both that paper on electric filters and another paper on mechanical resonance subsystems that I suggested you before. And as the mechanical engineer that bumped into conventional approaches you would naturally be curious in opportunities that new approach offers. Furthermore, you would not make an appearance that you don't read my posts to George. True, then you couldn't blame me that I give no model. With George, we already advanced into interaction of atom with EM wave. You would understand much... You only make worse for yourself trying to mix up the topics and tracks. ;-) You would better answer physical questions, not confuse yourself with sophistry. By the way, you are not the best of sophists, as you were taught not sophistry but childish nihilism: "What I don't like, I don't see, hear, neither recognise". These are your relativists problems without solutions. Well, launch your photon aeroplanes. And we SELF will step by step deepen. Now our technology which you don't know was selected in European Union as the technology of the week - while you still cannot replicate even our initial results. The longer the farther. Well, build your barricades, maybe Hollywood will become interesting in them for some next thriller - for example, "Russian handsome devil rips open the brain of audacious American David". ;-) Next, do not hide in "quantum mechanics" for they have already accepted that light energy arrives in discrete packets. Therefore, when you go to quantum theory, you must also accept that light arrives in discrete packets. I'm not interesting, what have they accepted to support their crumbling-away theory. I'm interesting only in facts, how it occurs factually in the nature. Some time ago being in sophistic extase you wrote me a phrase from formal logic of physics, something like "Even one experiment discrepant with the theory is enough to destroy its validity". You answered no one my question on the photon theory, and even in photoeffect you snatch the air, as a fish. Not you will tell what really occurs in microgauge of the nature. You would better want and be able to know, not to rage your heart out. Since you are now evading the facts, What?????? ;-) I must assume you no longer wish to discuss anything with me. Absolutely so, and I already wrote you twice. It's so boresome, time-expensive and fully fruitless way to spend time - trying to explain something to a person concentrated on one thing - to do not hear your words and to pervert them. Good luck in your future endeavors. Thank you very much, I will not fail with it. Follow our journal, you will soon see our new success. plonk None the less, you haven't answers. David A. Smith P.S. As to standard characteristic of photoelectric emission from metal, I will put it on my web site, as promised, and then inform you. Sergey. |
#163
|
|||
|
|||
Gravitation and Maxwell's Electrodynamics, BOUNDARY CONDITIONS
\(formerly\)" dlzc1.cox@net wrote in message news:_W3fb.38127$gv5.17852@fed1read05...
Dear Sergey Karavashkin: "Sergey Karavashkin" wrote in message om... David, What for have we to play Bilge? You see, he came and went away with the same - to normalise his longitudinal photons with respect to energy (if only he is able to do any thing with respect...). We also will not analyse your flights along my questions. As well as, who actually flew from one topic to another and made appearance that nothing of the kind. I provided a corrected diagram of a metal structure. A correct analogy (or circuit) will be coupled at 3 and 4 steps, which will destroy resonance. You are dodging the truth. And I spent a lot of time on the diagram. Oh well... Let us stop on one item - your awareness in vibration theory; by this we will judge, whether you have grounds for your categorical assertions. To make so, let us copy-and-paste that place from my text which you snipped in order to blur your answer and to blame me that you are not aware in these matters. You have an incorrect model. You are hiding. ... Thus, I repeat my question: PLEASE DO SHOW ME, HOW I MADE IT. You made it based on a circuit that does show resonance, but does not agree with any known *physical* model of bonding in metals. Find how your model describes reality. Next, do not hide in "quantum mechanics" for they have already accepted that light energy arrives in discrete packets. Therefore, when you go to quantum theory, you must also accept that light arrives in discrete packets. Since you are now evading the facts, I must assume you no longer wish to discuss anything with me. Good luck in your future endeavors. plonk David A. Smith David, As you appeared unable to see yourself what I asked you concerning the photoelectric effect from metals, I show you here http://www.angelfire.com/la3/selftrans/david/david.html the well-known diagrams with the brief description, you to make sure that the spectral characteristic of photoeffect has the maximum and the range of very fast-growing quantum output. Please pay your attention, emission of electrons from metal requires much more photons. Most of them are reflected. Where from? To the point, when the particle was reflected, it transmits twice more energy than when absorbed. So the maximum of reflection would correspond to the maximum of quantum output. While in reality this occurs on the contrary. NOW I'M REPEATING MY OLD QUESTION: WHAT CAUSES THE MAXIMUM OF PHOTOEFFECT? Furthermore, it has been multiply corroborated that EM field and light are the same. It is also doubtless that the EM field MUST interact with an electron. The nonsense which your comrades-in-arms in photon theory dream up when suppose EM field interacting with photon selectively only corroborates you colleagues feeble, unprincipled and militantly ignorant. You have a good opportunity to defend the "honour" of your colleagues and to describe thoroughly the cause, why EM field is so selective. And the third and final for now question. Thinking out the causes of small quantum output near the red boundary, your colleagues try to substantiate this by the skin-effect. But it is so trivial true that the EM wave reflection from metal is caused by the appeared effective counter-field on the surface of metal. Without it there would be no reflection! The calculation of such fields was the PhD thesis by Henry Hertz. And how it relates to reflection of photons? ;-) Regards, Sergey. |
#164
|
|||
|
|||
Gravitation and Maxwell's Electrodynamics, BOUNDARY CONDITIONS
"George Dishman" wrote in message ...
"Aleksandr Timofeev" wrote in message om... "George Dishman" wrote in message ... "Sergey Karavashkin" wrote in message om... [snip] I can hardly judge what Aleksandr means saying the nonlinear transformer necessary, I believe he was saying that the blackbody spectrum of heat radiated by a resistor is not linear but that, although true, is not the usual criteria for defining a system as non-linear, it is based on the equation that defines the motion. If the system changes a frequency spectrum of absorbed electromagnetic radiation, on definition such system is nonlinear in relation to absorbed electromagnetic radiation. That may be the case in your line of work but not in mine. A "Simple Harmonic Oscillator" is one in which the restoring force is linearly related to the displacement and that relation is what is being described as "linear". The generator electromagnetic oscillations always is nonlinear system, since this one converses one sort of energy in other. For example - resistor. The voltage is what tries to restore the quiescent conditions and is linearly related to the current hence in normal terminology it is linear. Even the amplifier electromagnetic oscillations almost always is nonlinear system, since this one imports nonlinear distortions to a signal. ;o) I know that only too well :-( Now problem for you: how the REVERSIBILITY of the generator in the amplifier and on the contrary is interlinked to NONLINEARITY of SYSTEM? Sorry Aleksandr, I am not taking any more exams this week, I think I have established my credentials adequately. best regards George Bravo, George! You parried excellently. Though it seems, Aleksandr hadn't in mind to examine you. You are not David Smith either Bilge, aren't you? ;-) Aleksandr's question quite fits his assertions and is really crafty. On one hand, you are absolutely right when thinking the system linear because of its linear constraints. On the other hand, you, as I see, are trying to tie the model of electronic oscillator to the model of atom? But the model of atom is nonlinear, as I recently showed you. On the third, you never will be able to build the oscillator if you have merely linear feedback. This is just what I illustrated you with resonance subsystems, when the input impedance of quite linear, though reactive elements varies nonlinearly in the frequency range, wherethrough we yield the selective feedback. This was Aleksandr's question. As to nonlinear constraint of orbital electron in atom, I would like to draw again your attention, when the orbit of electron increased, the connection becomes weaker, and vice versa. In linear systems the returning force ALWAYS provides the stable equilibrium and increases with ANY deviation. Here we have it not. This is just the complicacy of the problem, why Niels Bohr succeeded to estimate only the energetic part of model, and even it - incompletely. Here is some outward analogy with the simplest RC-oscillator. RC-circuit doesn't create new resonance lines but only rotates the phase of signal dependently on frequency. At the frequency where the total phase will be equal to 180 degrees, vibrations begin to add and to amplify, don't they? The same as a child on the swing: the amplitude will grow only with multiple addition. This is the feature of problem of photoeffect. Have a nice week, Sergey. |
#165
|
|||
|
|||
Gravitation and Maxwell's Electrodynamics, BOUNDARY CONDITIONS
"George Dishman" wrote in message ...
"Aleksandr Timofeev" wrote in message om... "George Dishman" wrote in message ... "Aleksandr Timofeev" wrote in message om... The generator electromagnetic oscillations always is nonlinear system, since this one converses one sort of energy in other. For example - resistor. The voltage is what tries to restore the quiescent conditions and is linearly related to the current hence in normal terminology it is linear. But in "exact" terminology it is nonlinear. ;-) The accurate terminology in English is "linear", the conventions may be different in your first language but it seems unlikely. I'll snip the rest, sorry to disappoint you but I have too many other demands on my time. I am already spending more effort than I intended on the discussion with Jim Greenfield but cosmology is my primary interest and a considerably more relevant topic for sci.astro. " But cosmology is my primary interest " also. Dear George, Please, give destructive criticism or disapproval of my astrophysical article from point of view of a scientific methodology: http://groups.google.com/groups?selm...g .google.com 1. Here SPACE and TIME are eliminated from the given EMPIRICAL THEORY. 2. THE GRAVITATIONAL CHARGE is ALONE physical VARIABLE in the given EMPIRICAL THEORY. 3. The given EMPIRICAL THEORY demonstrates EXPERIMENTALLY QUANTIZATION of a GRAVITATIONAL CHARGE. Sincerely yours, Aleksandr |
#166
|
|||
|
|||
Gravitation and Maxwell's Electrodynamics, BOUNDARY CONDITIONS
\(formerly\)" dlzc1.cox@net wrote in message news:a2zhb.52523$gv5.22053@fed1read05...
Dear Aleksandr Timofeev: "Aleksandr Timofeev" wrote in message om... \(formerly\)" dlzc1.cox@net wrote in message news:t4Vgb.47852$gv5.39735@fed1read05... ... There absent "The electron avalanches". There are only electromagnetic oscillations. The signal, which one is gripped by the antenna, amplifies by a quantum solid-state parametric amplifier. I will do research on this detector. I had only seen you refer to a PMT before. ... Now David I have one concrete problem to you: ================================================== 1. What concrete telescope seizes " a PHOTON "? ================================================== Each does. A cloud of photons is released from the source. Please David describe your model of absorption of "photon" simultaneously by two VLBI radio telescopes. SourceA)---- (multiple photons) Detector1) ---- (photon)---- (SourceA Most of Earth Detector2) ---- (photon)---- (SourceA Rotate one of the polarizers, and show me it is the same photon following two simultaneous paths. With three antenna-systems online, I'm guessing only the antenna-system on which you rotate the polarizer "drops out". Dear David, I do not perceive your model rather well... The truth as I perceive it... Let three radio telescopes are on the Earth. Let very remote source emits one "photon" in a direction of the Earth. 1. What concrete radio telescope will swallow up; devour; absorb; take up; or immerse this "photon"? 2. Other optional versions of your model... Sincerely yours, Aleksandr David A. Smith |
#167
|
|||
|
|||
Gravitation and Maxwell's Electrodynamics, BOUNDARY CONDITIONS
Dear Aleksandr Timofeev:
"Aleksandr Timofeev" wrote in message m... \(formerly\)" dlzc1.cox@net wrote in message news:a2zhb.52523$gv5.22053@fed1read05... .... Please David describe your model of absorption of "photon" simultaneously by two VLBI radio telescopes. SourceA)---- (multiple photons) Detector1) ---- (photon)---- (SourceA Most of Earth Detector2) ---- (photon)---- (SourceA Rotate one of the polarizers, and show me it is the same photon following two simultaneous paths. With three antenna-systems online, I'm guessing only the antenna-system on which you rotate the polarizer "drops out". Dear David, I do not perceive your model rather well... The truth as I perceive it... Let three radio telescopes are on the Earth. Let very remote source emits one "photon" in a direction of the Earth. 1. What concrete radio telescope will swallow up; devour; absorb; take up; or immerse this "photon"? 2. Other optional versions of your model... Since one telescope *does* absorb all of a photon (based on total absorbed energy), then signals detected at multiple telescopes must be multiple photons emitted in a "data packet". How many recorded incidents do you have where roughly half a photon (based on energy levels and/or polarization) is absorbed simultaneously at two antennae? Mach knew the Universe intrudes in the *here*. Einstein said the inverse, that any body was extended, even through the Universe. The diffraction formula says as much. This is why the wave model works so well for propagation. The fact that the antennae are separated by Earth is just geography. Good for driving the cost of flights up. David A. Smith |
#169
|
|||
|
|||
Gravitation and Maxwell's Electrodynamics, BOUNDARY CONDITIONS
"Aleksandr Timofeev" wrote in message om... "George Dishman" wrote in message ... "Aleksandr Timofeev" wrote in message om... "George Dishman" wrote in message ... "Aleksandr Timofeev" wrote in message om... The generator electromagnetic oscillations always is nonlinear system, since this one converses one sort of energy in other. For example - resistor. The voltage is what tries to restore the quiescent conditions and is linearly related to the current hence in normal terminology it is linear. But in "exact" terminology it is nonlinear. ;-) The accurate terminology in English is "linear", the conventions may be different in your first language but it seems unlikely. I'll snip the rest, sorry to disappoint you but I have too many other demands on my time. I am already spending more effort than I intended on the discussion with Jim Greenfield but cosmology is my primary interest and a considerably more relevant topic for sci.astro. " But cosmology is my primary interest " also. Dear George, Please, give destructive criticism or disapproval of my astrophysical article from point of view of a scientific methodology: http://groups.google.com/groups?selm...g .google.com As an article, you note empirical relatinships which could be taken as evidence for interactions between the orbiting bodies producing locked periods. However, it is always possible to express any value as a ratio of integers given sufficiently wide bounds. To show that these ratios are meaningful, you need to show that they will be stable for a significantly longer period than would occur if the had these values at the moment by chance if you want it to be considered scientific. As it stands, it is only numerology. 1. Here SPACE and TIME are eliminated from the given EMPIRICAL THEORY. 2. THE GRAVITATIONAL CHARGE is ALONE physical VARIABLE in the given EMPIRICAL THEORY. 3. The given EMPIRICAL THEORY demonstrates EXPERIMENTALLY QUANTIZATION of a GRAVITATIONAL CHARGE. I couldn't see any theory, just specific examples. Perhaps you could express the method you use indepently of the results so that it could be applied to extrasolar planets. You need state the rules governing the relationships now when there are few systems with multiple planets known so that the predictions can be checked as results come in. That would qualify as an empirical law, basically a refinement of Bodes Law. However, what you posted is not a theory. You do not give a model for gravitation or show how your empirical law could be derived from it. If you could give the equations for your "quantised gravtitational charge" and how to apply then and show how to derive say an equivalent for the inverse square law then you would have at least a start on a theory. George |
#170
|
|||
|
|||
Gravitation and Maxwell's Electrodynamics, BOUNDARY CONDITIONS
Sergey, sorry for not responding sooner. I'm going to trim
a lot since I agree with most and I have too little time to get involved in this. I only intended to send one post and that was weeks ago :-( "Sergey Karavashkin" wrote in message om... "George Dishman" wrote in message ... "Sergey Karavashkin" wrote in message To call resonance the independent phenomenon is the same as to try hearing the sound of guitar when it's absent here. If you heard it before, you can imagine this sound, but if your opposite person never heard guitar but knows how banjo sounds, he will associate your attempts to explain how guitar sounds with the sound of banjo. ;-) Any vibration system has very versatile kinds of vibrations which scientists at due time have classified by their features and revelations, but all these kinds are realised only at different conditions and are inseparable from the system in which they arise. We considered the channel and saw how one forms of vibrations transit to another and that there is no difference between vibrations and wave processes. All these are vibrations, and the kind of vibrations can be different. So it is fully ignorant to assert as David does that atom is non-resonant system (the starting point of this discussion on resonance). Atom is quite resonant system, and the fact that Niels Bohr's resonance calculations have fully coincided with the experiment only corroborates this. Yes, I agree, I also pointed that out to Sean. Where I disagreed was when you described the child as a "wave phenomenon" which means that the child is produced by the waves. The child is part of the system that oscillates as a result of the waves but obviously the child would still exist if there were no waves. Here I didn't understand you. It is second time now when you are attributing to me what I didn't say, I think that has been the key to this for some time. I have explained what I meant in my reply several times but you keep misunderstanding me, and I think I misunderstood you in the first place. I'll leave it at that. More importantly, you have to take into account that it seems that the parameters can only have discrete values. We have no necessity in it. Just this reveals your affection for QM dogmata which permanently comes to light and confuses your logic. ;-) No, I was careful to say "it seems that". It may well be that they can take other values but they always exhibit discrete levels in our experiments. Using that to simplify our analysis is pragmatic and can always be revised if it fails in any conditions not yet tested. So far I don't see a need for that. ... Thus, E and H components affect so that if the period of pulses coincides with the period of external field, these pulses will increase. Is this resonance or not? That depends. If it is resonance, the orbit should be able to gradually change from one energy level to another as it absorbs energy over many cycles. Here again 'hoofs' are seen. ;-) In this case you are proceeding not from the process but from Planck's postulate which supporters of QM have dogmatised. No i start with conclusions I drew from experiments I did many years ago in the physics lab. I have never seen anything to cause me to doubt those results or conclusions but if someone comes up with an experiment that shows them to be wrong, I will take hard evidence before dogma every time. The results have to be reproducible though ;-) Simulator is a very good thing, indeed, but no one simulator is able to match the phase-dependent boundary. You can yield it only having the problem solved. And in the vibration theory you never know finally, which condition at the boundary is actually the most important for you. Vibrations like much to 'punish' us by summing the phases and multiple reflections from interior heterogeneities. ;-) My biggest problem is that the stuff was built over forty years ago and the springs are air-filled rubber tyres with lots of patches! Nobody knows how they behave now. In many ways Sergey I think we are entirely in agreement. The few places we have disagreed, I could put down to differences in language, not differences in our physics. Undoubtedly, and perhaps we would finely complement each other in research. And there is nothing unsolvable in language, as it said Carlson that lives on the roof. I think, if you knew more of technique on which I base my analysis, you would less entrust to dogmas that appeared just because the scientists of that time have run into a strong difficulty. They constructed a temporary building of postulates; now today scientists are guided just as the tourists along this "Great Chinese Wall". ;-) As long as the results work, it will do for now. Show you get better results or can analyse something beyond our present abilities and your methods will be added to the body of knowledge. best regards George |
Thread Tools | |
Display Modes | |
|
|