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| Tags: circular, dilatation, motion, time |
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#31
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"Tom Roberts" escreveu na mensagem ... El Enrrabadore-mor wrote: "Tom Roberts" escreveu na mensagem t... El Enrrabadore-mor wrote: It is said that a speeding clock shows less elapsed time than the stay-at-home clock, because (if already speeding) it is running at a slower rate. Or else, because it had run at a slower rate when it was speeding, assuming now it is stopped near the stay-at-home clock. While that may be "said", it is wrong in SR. In SR, the motion of a clock does not affect its rate. But when one compares identical clocks that have traveled different paths, their elapsed proper times can differ, due to their different trajectories, not due to any change in their tick rates. It looks like you have a new theory here. Instead of velocity being the cause of time dilatation, now it is the trajectory the cause of time dilatation. No. I am discussing standard SR. It seems your perception of SR is wrong. In particular, motion does NOT affect the proper tick rate of clocks, but clocks that travel different trajectories can differ in their elapsed proper times between meetings of their trajectories. This is very basic SR, discussed in: I guess I'm not alone. The facts are that no one with good mental faculties can find any logic in your contraditory trajectory claim. Taylor and Wheeler, _Spacetime_Physics_. How many books are wrong? Below, you say that circular motion and linear motion causes exactly the same muons lifetime. Since circular and linear motions are the extreme limits of possible trajectories, it looks like that you have contradicted yourself. Nope. What this shows is that acceleration does not affect the decay rate of muons, and by implication, the tick rate of their internal "clock". That's my point. If that's what experiment says why not take that as a fact and discard GRT at once? [... circular motion] Bailey et al put muons into a storage ring and measured their lifetime for their circular path. Within experimental resolutions, they have the same lifetime as muons traveling in a straight line, so their circular path did NOT affect the internal "clock" that controls their decay. They were subject to an acceleration of about 10^18 g (1 g = 9.8 m/s^2), which is FAR greater than claimed in your example. Note this experiment is a direct implementation of the circular twin scenario, when combined with measurements of muon decay at rest. This one is extraordinary. You claim that Bailey et al experiment showed that muons lifetime doesn't depend on the acceleration. It is said that one single experiment that falsifies GRT is reason enough to discard a theory. This does not "falsify GRT" at all! Saying it is not enough. There's a huge evidence that GRT was falsified on its most basic postulate: The Equivalence Principle. Gravity = Acceleration You seem to be using a "sound bite" approach, and seem fixated on "clocks running slow" (due to motion, or due to gravity). That's overly naive. The truth is that I don't know nothing about clocks running fast or slow, like billions of people. Bailey et al does not refute GR because when one applies GR to their physical situation and computes what they should observe, one obtains agreement. It does show that the acceleration does not affect the muon decay rate. Since the result was zero time dilatation, you've said that the computed physical situation was the one that obtains agreement. How can I understand this? Does anyone understand? One can analyze their experiment (including comparison to muon decay at rest) in two different ways: a) use the overall inertial frame of their storage ring and apply SR. b) use the equivalence principle of GR, and treat the LOCAL acceleration of the stored muons as a gravitational field and compute the gravitational time dilation in LOCAL coordinates in which the stored muon is at rest. These obtain the same answer. The model and mathematical means to treat a problem requires some basic Physics, without random postulates. The facts are that muons lifetime was directly related with muons velocity on the "muon experiment" which is a relativity flag: http://hyperphysics.phy-astr.gsu.edu...ativ/muon.html in agreement with your a). Now, your b) says that "the equivalence principle of GR, and treat the LOCAL acceleration of the stored muons as a gravitational field and compute the gravitational time dilation in LOCAL coordinates in which the stored muon is at rest.", obtains the same answer. In the case of circular motion you got both applied at the same time. That is, not only you have the velocity factor involved on the muon lifetime, but also an ADDED acceleration/gravity factor, that no one can dennie. For straight motion you have zero acceleration and a finite momentum. In circular motion you have acceleration (a gravity like field) and zero motion relative to the center of rotation, assumed to be stopped. Nevertheless, the muon is speeding close to c, relative to the LAB frame. According to your point we can't have then both at the same time. My point is that, LOGIC, will say that since linear motion and circular motion are different motions, in the case of circular motion both effects (velocity and acceleration) will cancel out and no time dilatation will be seen on circular motion. Prove: Sagnac. Tom Roberts |
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#32
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"Tom Roberts" escreveu na mensagem ... One can analyze their experiment (including comparison to muon decay at rest) in two different ways: a) use the overall inertial frame of their storage ring and apply SR. b) use the equivalence principle of GR, and treat the LOCAL acceleration of the stored muons as a gravitational field and compute the gravitational time dilation in LOCAL coordinates in which the stored muon is at rest. These obtain the same answer. Moreover: Your a) appeals on velocity as the cause of time dilatation. Your b) appeals on acceleration (or gravity by equivalence principle) to be the cause on time dilatation. Physics say: c) Acceleration is the time derivative of velocity. My c) proves your a) and b) to be incompatible, since time used on the derivative is ABSOLUTE TIME. How can a time derivative be based on absolute time and the time himself not being absolute time? Tom Roberts |
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#33
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"El Enrrabadore-mor" wrote in message
"Greg Neill" escreveu na mensagem m... "El Enrrabadore-mor" wrote in message The mass-spring system oscillates at its natural frequency forever, if no damping exists. Damping is EXTERNAL. Unadulterated crap. Show me a real-life material of which a spring could be constructed that exhibits no energy loss when flexed. Similarly, show me a mass that doesn't at least radiate gravitational waves as it oscillates as a spring-mass system! Fine. All you've said is fine. Congratulations, you've succeeded to deviate from the main issue. The main issue is about electromagnetic radiation, based on Uncle Al post that starts the topic. Now, tell me about electromagnetic radiation damping factor, friction and so on? Can you see how much out-of-topic you are? Hey, *you're* the one who posted the nonsense, "A system in resonance is a closed system that exchanges no energy with surroundings. Energy is conserved in resonance." I just pointed out your misconceptions and errors. |
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#34
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"Greg Neill" escreveu na mensagem m... "El Enrrabadore-mor" wrote in message Can you see how much out-of-topic you are? Hey, *you're* the one who posted the nonsense, "A system in resonance is a closed system that exchanges no energy with surroundings. Energy is conserved in resonance." I just pointed out your misconceptions and errors. Obviously you must agree that for a case of electromagnetic radiation I'm right. So, why not blame Gisse for the cause of the nonsense? When one refuses to address the topic: "Time dilatation in circular motion" the nonsense becomes inevitable. I won't reply out-of-topic again on this nonsense resonance branch. |
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#35
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On May 4, 10:22 am, "El Enrrabadore-mor"
wrote: "Tom Roberts" escreveu na ... One can analyze their experiment (including comparison to muon decay at rest) in two different ways: a) use the overall inertial frame of their storage ring and apply SR. b) use the equivalence principle of GR, and treat the LOCAL acceleration of the stored muons as a gravitational field and compute the gravitational time dilation in LOCAL coordinates in which the stored muon is at rest. These obtain the same answer. Moreover: Your a) appeals on velocity as the cause of time dilatation. Your b) appeals on acceleration (or gravity by equivalence principle) to be the cause on time dilatation. Physics say: c) Acceleration is the time derivative of velocity. My c) proves your a) and b) to be incompatible, since time used on the derivative is ABSOLUTE TIME. I think Roberts is right, and I think you should think in terms of Action where relativity is concerned, then it smoothly interfaces with Quantum Theory. Ken |
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#36
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"Ken S. Tucker" escreveu na mensagem ... On May 4, 10:22 am, "El Enrrabadore-mor" wrote: "Tom Roberts" escreveu na ... One can analyze their experiment (including comparison to muon decay at rest) in two different ways: a) use the overall inertial frame of their storage ring and apply SR. b) use the equivalence principle of GR, and treat the LOCAL acceleration of the stored muons as a gravitational field and compute the gravitational time dilation in LOCAL coordinates in which the stored muon is at rest. These obtain the same answer. Moreover: Your a) appeals on velocity as the cause of time dilatation. Your b) appeals on acceleration (or gravity by equivalence principle) to be the cause on time dilatation. Physics say: c) Acceleration is the time derivative of velocity. My c) proves your a) and b) to be incompatible, since time used on the derivative is ABSOLUTE TIME. I think Roberts is right, and I think you should think in terms of Action where relativity is concerned, then it smoothly interfaces with Quantum Theory. Ken Hi Ken. I know that Tom Roberts is honest and someone that usually knows what he says. Quantum Theory is a very strange approach and looks like a magic box where everything is possible. Maybe, there's one possible understandable situation where the above three situations a), b) and c) can be made compatible. My best candidate are gyroscopes. Gyroscope equations, based on Newton and Lagrange, produce two orthogonal independent axes where equalities between acceleration and terms like 1/2 v^2 exist, plus a minus sign to make both effects cancel each other out on a Conservation of Energy equation. Action over a gyroscope (force = mass*acceleration) always cause a reaction on an orthogonal axis, called precession, which is a velocity without any force (acceleration) involved around it. The effect is due to the fact that torque equals the rate of change of angular momentum, so that action and reaction are placed on orthogonal axis. Gravity should be the force that makes orbiting mass to behave like if it was a rigid body. Such rigid body like must be quantized, since mass is always located where the gravitation force cancel the centrifugal force (do you remember that?). But the above is pure speculations, which I've pulled out of my hat this afternoon, so... Nevertheless, there are two pillar stones in Physics: 1 - Conservation of Angular Momentum. (No matter if it is circular motion or linear motion. For circular motion the conservation only exists relative to the center of rotation, but for linear motion conservation exists relative to every point in space); 2 - Conservation of Energy. Now, energy is the time derivative of the angular momentum, and that time is an absolute time. How can the above two pillar stones of Physics survive in view of time dilatation (and time not being absolute after all)? |
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#37
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"El Enrrabadore-mor" wrote in message ... "Prof Barnhart" escreveu na mensagem . .. I don't usually post here because I don't agree with the present state of theoretical physics. Specifically, why must so many equate the concept of a designed and created universe with religious fanatacism. I will probably encounter the usual attacks and go away again for several years, but here goes. see below Dear Mark, in the matter of Physics it looks like we are twins. Me too, I don't usually post here because I don't agree with the present state of theoretical physics. Yes, its is religious fanatacism. I've been gone for Years too, not because of attacks, since I can screw then all, but because I've loosed my faith on Physics. Here you cannot do the minimum irrelevant mistake. If you write something that could leads to a mistake you are in big trouble. The attack will be demolish, perpetuated by tens of fanatic religious (a huge loud speaker). I used to post with my name. Last time, last Year, I've been serious on a discussion about classic mechanics, for instance. Today I don't want to post with my name. Last week I was the Phantom, this week I'm the Enrrabadore-mor (the master of ass-****ing). Next week I'll be gone (maybe Today, since I don't see fit here). My speciality are top/gyroscopes and circular motion. No clue on top/gyroscopes exist, believe me. If and when a child is born into this mixed up world that is capable of taking the mathematics of Lorentz, Maxwell, and Einstein to a new level, I hope that there will be enough open-minded and rational people to surround him or her and shield from the assaults by those who seek to destroy for pleasure. Such a person would not be able to fight about non-sense. It is my understanding that Einstein entered space/time theory through the equations of Lorentz and Maxwell. He then sought to apply the results conceptually. He did an impeccable job and dutifully indicated that he didn't know how to interpret certain relationships. To progress further requires conceptualization, not about more transient particles, but about the true electromagnetic nature of reality. Mankind is locked out of advancement because of the assault squad that knows no real achievement. They don't understand that confounding someone's words is not the same thing as proving them wrong. As I understand the situation, Einstein's wife was equally if not more responsible for his achievements. Time Will Tell, Mark |
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#38
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On May 4, 10:07*am, "El Enrrabadore-mor"
wrote: "Greg Neill" escreveu na sting.com..."El Enrrabadore-mor" wrote in message Can you see how much out-of-topic you are? Hey, *you're* the one who posted the nonsense, "A system in resonance is a closed system that exchanges no energy with surroundings. Energy is conserved in resonance." *I just pointed out your misconceptions and errors. Obviously you must agree that for a case of electromagnetic radiation I'm right. Why? Microwave ovens have a nonunity Q factor. So, why not blame Gisse for the cause of the nonsense? Or go to straight to the source - blame yourself for not knowing what you are talking about while saying things that are clearly wrong and/ or stupid. When one refuses to address the topic: "Time dilatation in circular motion" the nonsense becomes inevitable. When one tries to discuss physics with an idiot, nonsense becomes inevitable. It isn't our fault you don't know what the hell you are talking about. I won't reply out-of-topic again on this nonsense resonance branch. Bet you will! |
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#39
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On May 4, 2:32*am, "Prof Barnhart" wrote:
I don't usually post here because I don't agree with the present state of theoretical physics. Idiot alert. Specifically, why must so many equate the concept of a designed and created universe with religious fanatacism. *I will probably encounter the usual attacks and go away again for several years, but here goes. *see below /Creationist/ idiot alert. This'll be fun! "El Enrrabadore-mor" wrote in message ... It is said that a speeding clock shows less elapsed time than the stay-at-home clock, because (if already speeding) it is running at a slower rate. Or else, because it had run at a slower rate when it was speeding, assuming now it is stopped near the stay-at-home clock. The funny thing about this is that time and length change at the same time, but not the ratio between both (velocity). If we keep length constant, the only possible solution is uniform circular motion. That is a twin travelling in circles, of constant radius r, around the first twin assumed to be stopped at the center of rotation. First as I recall, Einstein (he wasn't an idiot) equates gravity and acceleration. *I must say here that if gravity affects the path of EMR then it is logical to assume that it is a form of electromagnetism. Does that mean a prism is a form of electromagnetism? [snip remaining stupidity] I have to ask...professor of WHAT? |
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#40
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"El Enrrabadore-mor" wrote in message
[aka "Phantom"?] Now, energy is the time derivative of the angular momentum, and that time is an absolute time. Huh? The time derivative of angular momentum is torque. Remember T = dL/dt? Just because the units of Torque can be equated to Joules does not mean that it is appropriate to interpret them in such a way. Rotational kinetic energy is still given by (1/2)*I*w^2, the analog of the linear (1/2)*m*v^2. I'm surprised that you would attempt to perpetrate such a flimsy subterfuge. Also remember that kinetic energy is frame dependent, even for Newtonian physics, so time dilation poses no conceptual problems for energy in this regard. You'll no doubt be even more disturbed to learn that General Relativity essentially discards nonlocal conservation of energy. |
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