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| Tags: time |
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#11
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#12
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"Dirk Van de moortel" wrote in message ... | | "Gert Baars" wrote in message .. . | I heard before the clock is THE answer to observing time. | | The clock is not the answer to observing time. | It defines time. | | http://physics.nist.gov/cuu/Units/second.html | "The second is the duration of 9192631770 periods of the | radiation corresponding to the transition between the two | hyperfine levels of the ground state of the cesium 133 atom." | | Since you don't seem to like that, you better go to another | newsgroup where they don't care about physics. | | Dirk Vdm xi x', t' = t. Since you don't seem to like that, you better go to another newsgroup where they don't care about physics. Androcles. |
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#13
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Ahmed Ouahi, Architect wrote: First of all, you should be more specific with yourself, for instance, the time the way it is counted as to profit to whom or a systematically, the existence and the meaning of the time, whether, the one would not be without the other. Therefore, the time, it does still a being a fastidious translation along the cycles of the nature, which it can make them to apprach a simple way and a manners to control the events and the behaviours of the living spicies on the shell of the earth. Time is a measure of change. When we refere to time, we generally mean the *Measure of Time*. http://www.geocities.com/gurcharn_sa...me_measure.htm GSS |
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#14
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Bill Hobba wrote: "Gert Baars" wrote in message .. . I may be a total rookie to physics but on a former question he 'What is Time' no one has an answer (and should not). I beg to differ. I think you were given the correct answer - what a clock reads. Beyond that your really into philosophy. If time can not be understood then how can anything related to time (like the whole lot) be 'understood' or discussed. The above definition does nicely. http://www.friesian.com/feynman.htm 'Now, one might ask, What is "mass"? What is "distance"? What is "time"? As questions of physics these are going to be very different from similar questions in philosophy. In physics, all one need say, to get started, is that "mass resists acceleration" (intertial mass) or "mass exerts gravitational attraction" (gravitational mass), that "distance is what we measure with this rod," and that "time is what we measure with this clock." Wow. These answers, of course, are not philosophically very satisfying. They are all one needs, however, to start doing the science. And there is a reason for that. Scientific explanations are logically only sufficient, not necessary, to the phenomena. This means that they are enough to explain something about what we are seeing, but that logically they are not the only possible explanation and they do not explain everything about what we are seeing. Indeed, explaining everything is a tall order, though it is what, philosophically, we would like ultimately to have.' Bill Difficult to better comment. Marecel Luttgens |
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#15
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Gert Baars wrote: I may be a total rookie to physics but on a former question he 'What is Time' no one has an answer (and should not). If time can not be understood then how can anything related to time (like the whole lot) be 'understood' or discussed. Gert, Your question is very much a valid question. It simply is not a valid question in physics. The answers pf physics can support the questions raised by our experience, not the questions raised by our need for logical understanding. You see, the question of what something IS by itself is opposite to how something is experienced. Since physics is acquiring knowledge by experience, this type of question is somehow ignored. Physics could ask the same question, but the answer would have to be modified so much in order to make it physically testable that it would loose its meaning. Lets face it; everything we know about the universe is in fact about how we conceive and perceive it. What it is by itself is something else.... But one can address this question by using empirically acquired knowledge and by removing from it that part that we contributed to it just by being observers. It is possible to remove this artefact of our presence and come up with a simplified logical explanation. My metaphysical questions a What is the universe made of and what internal rules of constraint does it follow. This is a requirement for understanding a spontaneous self evolving universe; it contains both substance and cause. IMHO, time is a continual explosive process we live in. The Big Bang was not a punctual event but rather the beginning of a process, still happening as shown by the acceleration of the universe expansion BTW, time duration is our integration of a dynamical phenomenon, the passage of time. The first one is our synthetic clocking, the other is real . This is the catch! If you can physically interact with it, it is an experience, a binary relationship of which you are an inseparable part. Then, it is not real because it cannot exist without you to experience it! So is the passage of time. You may infer its existence, but cannot experience it directly ..... other than by integrating it as time duration. Hope this help, Marcel, |
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#16
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kirjoitti glegroups.com... Gert Baars wrote: I may be a total rookie to physics but on a former question he 'What is Time' no one has an answer (and should not). If time can not be understood then how can anything related to time (like the whole lot) be 'understood' or discussed. Gert, Your question is very much a valid question. It simply is not a valid question in physics. The answers pf physics can support the questions raised by our experience, not the questions raised by our need for logical understanding. You see, the question of what something IS by itself is opposite to how something is experienced. Since physics is acquiring knowledge by experience, this type of question is somehow ignored. Physics could ask the same question, but the answer would have to be modified so much in order to make it physically testable that it would loose its meaning. Lets face it; everything we know about the universe is in fact about how we conceive and perceive it. What it is by itself is something else.... But one can address this question by using empirically acquired knowledge and by removing from it that part that we contributed to it just by being observers. It is possible to remove this artefact of our presence and come up with a simplified logical explanation. My metaphysical questions a What is the universe made of and what internal rules of constraint does it follow. This is a requirement for understanding a spontaneous self evolving universe; it contains both substance and cause. IMHO, time is a continual explosive process we live in. The Big Bang was not a punctual event but rather the beginning of a process, still happening as shown by the acceleration of the universe expansion BTW, time duration is our integration of a dynamical phenomenon, the passage of time. The first one is our synthetic clocking, the other is real . This is the catch! If you can physically interact with it, it is an experience, a binary relationship of which you are an inseparable part. Then, it is not real because it cannot exist without you to experience it! So is the passage of time. You may infer its existence, but cannot experience it directly ..... other than by integrating it as time duration. Hope this help, Marcel, You are totally wrong. Contradictions between interpretation of experimental results and common sense are due to incorrect theories. The final truth will not be something that we cannot understand. http://www.wakkanet.fi/~fields/ Henry Haapalainen |
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#17
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Hi Henry, - The word `contradiction`was nowhere used in my posting. - We think of understanding as an ever fine description of things. No description amounts to a logical explanation that stands on its own. - The final truth IS about a logical understanding of things. Good luck, Marcel, You are totally wrong. Contradictions between interpretation of experimental results and common sense are due to incorrect theories. The final truth will not be something that we cannot understand. http://www.wakkanet.fi/~fields/ Henry Haapalainen |
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#18
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wrote in message oups.com... Bill Hobba wrote: "Gert Baars" wrote in message .. . I may be a total rookie to physics but on a former question he 'What is Time' no one has an answer (and should not). I beg to differ. I think you were given the correct answer - what a clock reads. Beyond that your really into philosophy. If time can not be understood then how can anything related to time (like the whole lot) be 'understood' or discussed. The above definition does nicely. http://www.friesian.com/feynman.htm 'Now, one might ask, What is "mass"? What is "distance"? What is "time"? As questions of physics these are going to be very different from similar questions in philosophy. In physics, all one need say, to get started, is that "mass resists acceleration" (intertial mass) or "mass exerts gravitational attraction" (gravitational mass), that "distance is what we measure with this rod," and that "time is what we measure with this clock." Wow. These answers, of course, are not philosophically very satisfying. They are all one needs, however, to start doing the science. And there is a reason for that. Scientific explanations are logically only sufficient, not necessary, to the phenomena. This means that they are enough to explain something about what we are seeing, but that logically they are not the only possible explanation and they do not explain everything about what we are seeing. Indeed, explaining everything is a tall order, though it is what, philosophically, we would like ultimately to have.' Bill VERGON The objective universe consists only of matter, space between matter, and the motion of matter through that space, the rest is anthropocentric interpretation. So Maxwell had it all wrong and fields do not exist - no if's or buts. I strongly suspect you need to think a little bit before posting. Rest snipped. Bill |
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#19
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Henry, I have been working for some time on a logical understanding of the phenomenon of gravitation that makes use of our empirical knowledge, physics. In the end, I resorted to the two basic metaphysical questions about the universe: What is it made of and what rules does it follow. My answer to these two questions a 1- A continual explosive process which we associate with the passage of time 2- Simple rules of logic. This approach eliminates the need for an experience or an oberver. A dynamical substance as an explosive process can assume many variations: Its rate of evolution can vary in a multitude of ways: increasing, decreasing, going from one to the other etc. A whole collection of states can/could exist that include matter, waves etc. All these states being made of one same substance , they could be operational on one another via rules of logic .. by themself i.e in a spontaneous way. Lets look at one possible example. The assumption is that "space" is the basic substance and explosive process (Big Bang process). Matter is different variations of the same substance..... Then, the presence of matter replaces logically "space' because the same substance cannot be both the basic form AND the variation form. i.e variation and non-variation at the same time! The rule of non contradiction prevails. This logical substitution causes an explosive deficit -of time- where matter is. The relative slowing down of time by the presence of matter is a given in physics. BUT, physics does not extract the logical cause from its data since it is content with the empirical aspect. Why do object fall ? Because existence is a time dependant property. In the gradient of slower passage of time around a mass, anything that exists will exist more on average in the direction where the passage of time is relatively slower, i.e toward the earth, planet or whatever. A planet and a moon will both tend to exist more toward each other. Everything that exist replaces some exploding time and thereore slows down time, and slower time makes existence (as position) more probable in a specific direction = everything attracts everything else = universal (logical) attraction. ....... In short: A multiple-state dynamical single substance universe CAN evolve spontaneously by following simple -built-in-* rules of logic. It appears that the universe has been evolving by itself for the last 14 billion years, so this is the kind of approach we need in order to understand the universe as a spontaneous phenomenon. * Some simple rule of logic cannot be transgressed in any known field. This choiceless fact may point to an actual rule that the universe follows. Marcel, |
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#20
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Gert Baars wrote: I may be a total rookie to physics but on a former question he 'What is Time' no one has an answer (and should not). In replies to your former post, time was related to you in terms of accelerating a mass. (Just as Newton did ) If time can not be understood then how can anything related to time (like the whole lot) be 'understood' or discussed. Unless you are a pedestrian or an oil shiek, then you understand the reality of time whenever you pay for motor fuel. invariance with respect to time translation gives the well known law of conservation of energy http://en.wikipedia.org/wiki/Noether's_theorem Sue... |
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