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From: Ste on 17 Feb 2010 14:14 On 17 Feb, 18:04, mpalenik <markpale...(a)gmail.com> wrote: > On Feb 17, 12:51 pm, Ste <ste_ro...(a)hotmail.com> wrote: > > > > > > > On 17 Feb, 16:07, mpalenik <markpale...(a)gmail.com> wrote: > > > > On Feb 17, 10:04 am, Ste <ste_ro...(a)hotmail.com> wrote: > > > > > > As we discussed earlier, it may be that we are only AWARE of four > > > > > dimensions. It may well be that there are more. Then the way to > > > > > entertain this notion is to ask the question, how would something that > > > > > is only AWARE of two dimensions become convinced that there is a third > > > > > dimension? This turns out to be very answerable. > > > > > I'm afraid that was not my conclusion. As I've said, these > > > > possibilities only seem credible to those who already hold them to be > > > > credible. > > > > Well, how could they seem credible to people who don't hold them > > > credible? > > > I fear the answer follows naturally from the question: they don't seem > > credible, to people who don't hold them to be credible. > > That is true by definition I know, which makes one wonder why you asked the question in the first place. > > > Or do you think we were born knowing these things? > > > I suspect the material reasons behind axiomatic beliefs are myriad, > > but I don't discount the possibility that people may indeed be > > psychologically predisposed to certain beliefs as a form of social > > specialisation. > > Except for you, right? No I meant including me.
From: Ste on 17 Feb 2010 14:18 On 17 Feb, 18:24, PD <thedraperfam...(a)gmail.com> wrote: > On Feb 17, 11:39 am, Ste <ste_ro...(a)hotmail.com> wrote: > > > > > > > On 17 Feb, 16:00, Paul Stowe <theaether...(a)gmail.com> wrote: > > > > On Feb 17, 7:04 am, Ste <ste_ro...(a)hotmail.com> wrote: > > > > > > As we discussed earlier, it may be that we are only AWARE of four > > > > > dimensions. It may well be that there are more. Then the way to > > > > > entertain this notion is to ask the question, how would something that > > > > > is only AWARE of two dimensions become convinced that there is a third > > > > > dimension? This turns out to be very answerable. > > > > > I'm afraid that was not my conclusion. As I've said, these > > > > possibilities only seem credible to those who already hold them to be > > > > credible. > > > > What I've seen here, and even in some books, is a vague improper use > > > of the term dimension. From what I can tell, the term is strictly as > > > used, a mathematical concept. See: > > > >http://mathworld.wolfram.com/Dimension.html > > > > It is often confused with the concept of physical properties such as > > > mass, length, time, charge. Since two of these (length and time) are > > > modeled using geometrical dimensionality this leads to the confusion. > > > Adding further to this is the unitary systems we assign to the > > > physical properties (kilogram, meter, second, Coulomb, ... etc.). A > > > dimension has no physical existence and a physical property has no > > > inherent unitary values, we must combine these concepts to make, > > > quantify, and describe physical systems and processes. > > > > As time goes on we get more creative on assigning the term. In > > > relativity where we have, > > > > dx^2 + dy^2 + dz^2 - ds^2 = 0 > > > > The s (ct) term isn't itself a simply point, it's a computed > > > projection of a destination (point) dependent upon a physical > > > property, the speed c. To have strict orthogonal axes c must remain > > > constant over infinite space. In turn, if this were true, there would > > > be no need for the hydrodynamical equation of General relativity. In > > > fact, all observational evidence to date supports the fact that, by > > > strict definition of the term dimension only three primal or actual > > > dimensions exist and time is 'mapped' into pseudo forth using the > > > physical property of c to do so. > > > Indeed. Some people look at you funny when you talk of something like > > a "five-dimensional database". > > > I'm convinced that the essential need for the 4th dimension in > > relativity, and the significance of 'c', is simply because > > electromagnetic propagation delays have become practically > > significant. > > Then you are erroneously convinced. > You may recall that we were discussing how to determine simultaneity > when those propagation delays are fully accounted for. Well, we'll work though that after I have a clear picture of how light moves. > > Before the end of the 19th century and the development of > > electromagnetic communications over long distances, electromagnetic > > effects for all practical purposes moved instantaneously. > > And that's just flat wrong. Well before the 19th century, the > aberration of the orbit of Jupiter was *known* to be due to the > propagation delay of light. I know. I didn't say "no one knew the speed of light was finite". I'm saying that there was no need to formalise it for any practical purpose.
From: BURT on 17 Feb 2010 14:28 On Feb 17, 11:18 am, Ste <ste_ro...(a)hotmail.com> wrote: > On 17 Feb, 18:24, PD <thedraperfam...(a)gmail.com> wrote: > > > > > > > On Feb 17, 11:39 am, Ste <ste_ro...(a)hotmail.com> wrote: > > > > On 17 Feb, 16:00, Paul Stowe <theaether...(a)gmail.com> wrote: > > > > > On Feb 17, 7:04 am, Ste <ste_ro...(a)hotmail.com> wrote: > > > > > > > As we discussed earlier, it may be that we are only AWARE of four > > > > > > dimensions. It may well be that there are more. Then the way to > > > > > > entertain this notion is to ask the question, how would something that > > > > > > is only AWARE of two dimensions become convinced that there is a third > > > > > > dimension? This turns out to be very answerable. > > > > > > I'm afraid that was not my conclusion. As I've said, these > > > > > possibilities only seem credible to those who already hold them to be > > > > > credible. > > > > > What I've seen here, and even in some books, is a vague improper use > > > > of the term dimension. From what I can tell, the term is strictly as > > > > used, a mathematical concept. See: > > > > >http://mathworld.wolfram.com/Dimension.html > > > > > It is often confused with the concept of physical properties such as > > > > mass, length, time, charge. Since two of these (length and time) are > > > > modeled using geometrical dimensionality this leads to the confusion. > > > > Adding further to this is the unitary systems we assign to the > > > > physical properties (kilogram, meter, second, Coulomb, ... etc.). A > > > > dimension has no physical existence and a physical property has no > > > > inherent unitary values, we must combine these concepts to make, > > > > quantify, and describe physical systems and processes. > > > > > As time goes on we get more creative on assigning the term. In > > > > relativity where we have, > > > > > dx^2 + dy^2 + dz^2 - ds^2 = 0 > > > > > The s (ct) term isn't itself a simply point, it's a computed > > > > projection of a destination (point) dependent upon a physical > > > > property, the speed c. To have strict orthogonal axes c must remain > > > > constant over infinite space. In turn, if this were true, there would > > > > be no need for the hydrodynamical equation of General relativity. In > > > > fact, all observational evidence to date supports the fact that, by > > > > strict definition of the term dimension only three primal or actual > > > > dimensions exist and time is 'mapped' into pseudo forth using the > > > > physical property of c to do so. > > > > Indeed. Some people look at you funny when you talk of something like > > > a "five-dimensional database". > > > > I'm convinced that the essential need for the 4th dimension in > > > relativity, and the significance of 'c', is simply because > > > electromagnetic propagation delays have become practically > > > significant. > > > Then you are erroneously convinced. > > You may recall that we were discussing how to determine simultaneity > > when those propagation delays are fully accounted for. > > Well, we'll work though that after I have a clear picture of how light > moves. > > > > Before the end of the 19th century and the development of > > > electromagnetic communications over long distances, electromagnetic > > > effects for all practical purposes moved instantaneously. > > > And that's just flat wrong. Well before the 19th century, the > > aberration of the orbit of Jupiter was *known* to be due to the > > propagation delay of light. > > I know. I didn't say "no one knew the speed of light was finite". I'm > saying that there was no need to formalise it for any practical > purpose.- Hide quoted text - > > - Show quoted text - Light is the dual Unified force that communicates in the universe. Mitch Raemsch
From: BURT on 17 Feb 2010 14:34 On Feb 17, 11:18 am, Ste <ste_ro...(a)hotmail.com> wrote: > On 17 Feb, 18:24, PD <thedraperfam...(a)gmail.com> wrote: > > > > > > > On Feb 17, 11:39 am, Ste <ste_ro...(a)hotmail.com> wrote: > > > > On 17 Feb, 16:00, Paul Stowe <theaether...(a)gmail.com> wrote: > > > > > On Feb 17, 7:04 am, Ste <ste_ro...(a)hotmail.com> wrote: > > > > > > > As we discussed earlier, it may be that we are only AWARE of four > > > > > > dimensions. It may well be that there are more. Then the way to > > > > > > entertain this notion is to ask the question, how would something that > > > > > > is only AWARE of two dimensions become convinced that there is a third > > > > > > dimension? This turns out to be very answerable. > > > > > > I'm afraid that was not my conclusion. As I've said, these > > > > > possibilities only seem credible to those who already hold them to be > > > > > credible. > > > > > What I've seen here, and even in some books, is a vague improper use > > > > of the term dimension. From what I can tell, the term is strictly as > > > > used, a mathematical concept. See: > > > > >http://mathworld.wolfram.com/Dimension.html > > > > > It is often confused with the concept of physical properties such as > > > > mass, length, time, charge. Since two of these (length and time) are > > > > modeled using geometrical dimensionality this leads to the confusion. > > > > Adding further to this is the unitary systems we assign to the > > > > physical properties (kilogram, meter, second, Coulomb, ... etc.). A > > > > dimension has no physical existence and a physical property has no > > > > inherent unitary values, we must combine these concepts to make, > > > > quantify, and describe physical systems and processes. > > > > > As time goes on we get more creative on assigning the term. In > > > > relativity where we have, > > > > > dx^2 + dy^2 + dz^2 - ds^2 = 0 > > > > > The s (ct) term isn't itself a simply point, it's a computed > > > > projection of a destination (point) dependent upon a physical > > > > property, the speed c. To have strict orthogonal axes c must remain > > > > constant over infinite space. In turn, if this were true, there would > > > > be no need for the hydrodynamical equation of General relativity. In > > > > fact, all observational evidence to date supports the fact that, by > > > > strict definition of the term dimension only three primal or actual > > > > dimensions exist and time is 'mapped' into pseudo forth using the > > > > physical property of c to do so. > > > > Indeed. Some people look at you funny when you talk of something like > > > a "five-dimensional database". > > > > I'm convinced that the essential need for the 4th dimension in > > > relativity, and the significance of 'c', is simply because > > > electromagnetic propagation delays have become practically > > > significant. > > > Then you are erroneously convinced. > > You may recall that we were discussing how to determine simultaneity > > when those propagation delays are fully accounted for. > > Well, we'll work though that after I have a clear picture of how light > moves. > > > > Before the end of the 19th century and the development of > > > electromagnetic communications over long distances, electromagnetic > > > effects for all practical purposes moved instantaneously. > > > And that's just flat wrong. Well before the 19th century, the > > aberration of the orbit of Jupiter was *known* to be due to the > > propagation delay of light. > > I know. I didn't say "no one knew the speed of light was finite". I'm > saying that there was no need to formalise it for any practical > purpose.- Hide quoted text - > > - Show quoted text - The speed of light establishes that it is nonlocal. It does not move infinitely fast. Mitch Raemsch
From: PD on 17 Feb 2010 14:35 On Feb 17, 1:18 pm, Ste <ste_ro...(a)hotmail.com> wrote: > On 17 Feb, 18:24, PD <thedraperfam...(a)gmail.com> wrote: > > > > > On Feb 17, 11:39 am, Ste <ste_ro...(a)hotmail.com> wrote: > > > > On 17 Feb, 16:00, Paul Stowe <theaether...(a)gmail.com> wrote: > > > > > On Feb 17, 7:04 am, Ste <ste_ro...(a)hotmail.com> wrote: > > > > > > > As we discussed earlier, it may be that we are only AWARE of four > > > > > > dimensions. It may well be that there are more. Then the way to > > > > > > entertain this notion is to ask the question, how would something that > > > > > > is only AWARE of two dimensions become convinced that there is a third > > > > > > dimension? This turns out to be very answerable. > > > > > > I'm afraid that was not my conclusion. As I've said, these > > > > > possibilities only seem credible to those who already hold them to be > > > > > credible. > > > > > What I've seen here, and even in some books, is a vague improper use > > > > of the term dimension. From what I can tell, the term is strictly as > > > > used, a mathematical concept. See: > > > > >http://mathworld.wolfram.com/Dimension.html > > > > > It is often confused with the concept of physical properties such as > > > > mass, length, time, charge. Since two of these (length and time) are > > > > modeled using geometrical dimensionality this leads to the confusion. > > > > Adding further to this is the unitary systems we assign to the > > > > physical properties (kilogram, meter, second, Coulomb, ... etc.). A > > > > dimension has no physical existence and a physical property has no > > > > inherent unitary values, we must combine these concepts to make, > > > > quantify, and describe physical systems and processes. > > > > > As time goes on we get more creative on assigning the term. In > > > > relativity where we have, > > > > > dx^2 + dy^2 + dz^2 - ds^2 = 0 > > > > > The s (ct) term isn't itself a simply point, it's a computed > > > > projection of a destination (point) dependent upon a physical > > > > property, the speed c. To have strict orthogonal axes c must remain > > > > constant over infinite space. In turn, if this were true, there would > > > > be no need for the hydrodynamical equation of General relativity. In > > > > fact, all observational evidence to date supports the fact that, by > > > > strict definition of the term dimension only three primal or actual > > > > dimensions exist and time is 'mapped' into pseudo forth using the > > > > physical property of c to do so. > > > > Indeed. Some people look at you funny when you talk of something like > > > a "five-dimensional database". > > > > I'm convinced that the essential need for the 4th dimension in > > > relativity, and the significance of 'c', is simply because > > > electromagnetic propagation delays have become practically > > > significant. > > > Then you are erroneously convinced. > > You may recall that we were discussing how to determine simultaneity > > when those propagation delays are fully accounted for. > > Well, we'll work though that after I have a clear picture of how light > moves. Alright, then all I ask is that you hold on pause your conviction that this is all due to propagation delays, since you have no solid grounds for believing that yet. > > > > Before the end of the 19th century and the development of > > > electromagnetic communications over long distances, electromagnetic > > > effects for all practical purposes moved instantaneously. > > > And that's just flat wrong. Well before the 19th century, the > > aberration of the orbit of Jupiter was *known* to be due to the > > propagation delay of light. > > I know. I didn't say "no one knew the speed of light was finite". I'm > saying that there was no need to formalise it for any practical > purpose. And that's STILL incorrect. It was important to know where Jupiter *really* was in orbit, compared with where it *appeared* to be due to propagation delays.
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