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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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OT question
What are the parameters that set the speed of electromagnetic
transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill |
#2
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On 24/12/2017 20:43, Bill Wright wrote:
What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill Start here https://en.wikipedia.org/wiki/Electr..._wave_equation then look up permittivity and permeability of free space |
#3
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On 24/12/17 20:59, newshound wrote:
On 24/12/2017 20:43, Bill Wright wrote: What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill Start here https://en.wikipedia.org/wiki/Electr..._wave_equation then look up permittivity and permeability of free space But that doesnt do more than transform the question into 'why is that the value of the permittivity and permeability of free space'? -- The theory of Communism may be summed up in one sentence: Abolish all private property. Karl Marx |
#4
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On 25/12/2017 08:19, The Natural Philosopher wrote:
then look up permittivity and permeability of free space But that doesnt do more than transform the question into 'why is that the value of the permittivity and permeability of free space'? Yes. Bill |
#5
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On 25/12/2017 08:19, The Natural Philosopher wrote:
On 24/12/17 20:59, newshound wrote: On 24/12/2017 20:43, Bill Wright wrote: What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill Start here https://en.wikipedia.org/wiki/Electr..._wave_equation then look up permittivity and permeability of free space But that doesnt do more than transform the question into 'why is that the value of the permittivity and permeability of free space'? No, but it tells you there are other more fundamantal measurable parameters which have particular values, and these fix the speed of light. So it takes you back one step. |
#6
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On 27/12/17 16:02, newshound wrote:
On 25/12/2017 08:19, The Natural Philosopher wrote: On 24/12/17 20:59, newshound wrote: On 24/12/2017 20:43, Bill Wright wrote: What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill Start here https://en.wikipedia.org/wiki/Electr..._wave_equation then look up permittivity and permeability of free space But that doesnt do more than transform the question into 'why is that the value of the permittivity and permeability of free space'? No, but it tells you there are other more fundamantal measurable parameters which have particular values, and these fix the speed of light. So it takes you back one step. well not really, since you might just as well say that these constants are in fact due to the speed of light.... |
#7
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OT question
On 25/12/2017 09:25, Tim Streater wrote:
... life would not be possible in most of the resulting universes. "Life as we know it" - to more or less quote Dr Spock. |
#8
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On Mon, 25 Dec 2017 09:31:08 +0000
GB wrote: On 25/12/2017 09:25, Tim Streater wrote: ... life would not be possible in most of the resulting universes. "Life as we know it" - to more or less quote Dr Spock. Mister Spock - the doctor was a child behaviourist. |
#9
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OT question
In message , Tim Streater
writes AIUI, there are about 26 physical constants (such as speed of light) for the values of which there is no theoretical explanation known today. That is, it's as if God (I use the term for convenience) has 26 knobs to turn to set these values and launch the universe. They could have any values, these constants, and life would not be possible in most of the resulting universes. Which raises the interesting question of whether alternative universes exist in which some or all of those constants have different values. -- John Hall "George the Third Ought never to have occurred. One can only wonder At so grotesque a blunder." E.C.Bentley (1875-1956) |
#10
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On 25/12/17 09:51, John Hall wrote:
In message , Tim Streater writes AIUI, there are about 26 physical constants (such as speed of light) for the values of which there is no theoretical explanation known today. That is, it's as if God (I use the term for convenience) has 26 knobs to turn to set these values and launch the universe. They could have any values, these constants, and life would not be possible in most of the resulting universes. Which raises the interesting question of whether alternative universes exist in which some or all of those constants have different values. Since by definition we can't exist in them, how could we tell? -- In todays liberal progressive conflict-free education system, everyone gets full Marx. |
#11
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In message , The Natural Philosopher
writes On 25/12/17 09:51, John Hall wrote: In message , Tim Streater writes AIUI, there are about 26 physical constants (such as speed of light) for the values of which there is no theoretical explanation known today. That is, it's as if God (I use the term for convenience) has 26 knobs to turn to set these values and launch the universe. They could have any values, these constants, and life would not be possible in most of the resulting universes. Which raises the interesting question of whether alternative universes exist in which some or all of those constants have different values. Since by definition we can't exist in them, how could we tell? I suspect that there may be no way of doing so, which may make it a question for philosophers rather than for scientists. -- John Hall "George the Third Ought never to have occurred. One can only wonder At so grotesque a blunder." E.C.Bentley (1875-1956) |
#12
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On 25/12/2017 09:51, John Hall wrote:
Which raises the interesting question of whether alternative universes exist in which some or all of those constants have different values. There are places not far from here where different values are universally applied. Bill |
#13
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OT question
"Bill Wright" wrote in message news On 25/12/2017 09:51, John Hall wrote: Which raises the interesting question of whether alternative universes exist in which some or all of those constants have different values. There are places not far from here where different values are universally applied. Ursa Minor maybe? |
#14
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On 25/12/17 13:54, Tim Streater wrote:
Which raises the interesting question of whether alternative universes exist in which some or all of those constants have different values. Indeed it does and now you're in the realm of metaphysics. There are however some speculative hypotheses which imply they do. Again yuputr are staring out with baseless assumptions. The notion of a universe, and indeed an alternative one, is itself anthropic. What is, just is. ....We assume, irrespective of whether we have notions about it, or not... -- In todays liberal progressive conflict-free education system, everyone gets full Marx. |
#15
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On 25/12/2017 18:09, The Natural Philosopher wrote:
On 25/12/17 13:54, Tim Streater wrote: Which raises the interesting question of whether alternative universes exist in which some or all of those constants have different values. Indeed it does and now you're in the realm of metaphysics. There are however some speculative hypotheses which imply they do. Again yuputr are staring out with baseless assumptions. The notion of a universe, and indeed an alternative one, is itself anthropic. What is, just is. ...We assume, irrespective of whether we have notions about it, or not... I just don't see where any of this speculation gets you? It's possible to hypothesise anything at all, but if it can't be measured or observed you can't take it any further. Discussion about alternative universes is rightly treated as (science) fiction and fantasy, rather than philosophy. |
#16
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OT question
On 25/12/2017 18:09, The Natural Philosopher wrote:
On 25/12/17 13:54, Tim Streater wrote: Which raises the interesting question of whether alternative universes exist in which some or all of those constants have different values. Indeed it does and now you're in the realm of metaphysics. There are however some speculative hypotheses which imply they do. Again yuputr are staring out with baseless assumptions. The notion of a universe, and indeed an alternative one, is itself anthropic. What is, just is. If only philosophers through the ages had appreciated that universal wisdom, they'd have saved so much time, and perhaps been able to do something useful instead. |
#17
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On Monday, 25 December 2017 18:09:14 UTC, The Natural Philosopher wrote:
On 25/12/17 13:54, Tim Streater wrote: Which raises the interesting question of whether alternative universes exist in which some or all of those constants have different values. Indeed it does and now you're in the realm of metaphysics. There are however some speculative hypotheses which imply they do. Again yuputr are staring out with baseless assumptions. The notion of a universe, and indeed an alternative one, is itself anthropic. What is, just is. ...We assume, irrespective of whether we have notions about it, or not... 'Alternate universe' strikes me as a self contradiction. Thus they don't exist. NT |
#18
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On 25/12/2017 09:25, Tim Streater wrote:
AIUI, there are about 26 physical constants (such as speed of light) for the values of which there is no theoretical explanation known today. That is, it's as if God (I use the term for convenience) has 26 knobs to turn to set these values and launch the universe. They could have any values, these constants, and life would not be possible in most of the resulting universes. That's interesting. My goodness, wouldn't it have saved a lot of bother if He'd chosen an unworkable combination? Bill |
#19
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On 25/12/2017 09:25, Tim Streater wrote:
In article , The Natural Philosopher wrote: On 24/12/17 20:59, newshound wrote: On 24/12/2017 20:43, Bill Wright wrote: What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill Start here https://en.wikipedia.org/wiki/Electr..._wave_equation then look up permittivity and permeability of free space But that doesnt do more than transform the question into 'why is that the value of the permittivity and permeability of free space'? AIUI, there are about 26 physical constants (such as speed of light) for the values of which there is no theoretical explanation known today. That is, it's as if God (I use the term for convenience) has 26 knobs to turn to set these values and launch the universe. They could have any values, these constants, and life would not be possible in most of the resulting universes. There are thoughts that the speed of sound changes over time, in much the same way the gravitational constant is believed to be changing (excluding the known 5.9 year cycle). https://en.wikipedia.org/wiki/Variable_speed_of_light https://en.wikipedia.org/wiki/Time-v...ntal_constants It is therefore possible that the goldilocks period we are in may change into one that can't sustain carbon life-forms, who knows! I do think any claim that there are 26 "constants", when we don't know the origin of these numbers, is a bit risky. |
#20
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On 27/12/17 13:04, Fredxx wrote:
I do think any claim that there are 26 "constants", when we don't know the origin of these numbers, is a bit risky. That sounds intelligent, but on close examination, it is completely meaningless. Then I looked at the poster... -- "What do you think about Gay Marriage?" "I don't." "Don't what?" "Think about Gay Marriage." |
#21
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On 27/12/2017 14:55, The Natural Philosopher wrote:
On 27/12/17 13:04, Fredxx wrote: I do think any claim that there are 26 "constants", when we don't know the origin of these numbers, is a bit risky. That sounds intelligent, but on close examination, it is completely meaningless. Then I looked at the poster... You often trot out your defence of 'meaningless' when you don't understand something, in this case a simple wiki page? https://en.wikipedia.org/wiki/Time-v...ntal_constants Are the words too long for your vocabulary? |
#22
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OT question
On 24/12/2017 20:43, Bill Wright wrote:
What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill You have to bear in mind that the metre is an arbitrary distance based on the circumference of the Earth, and a second was a fraction of the duration of the Earth's orbit, finally fixed as a number that is 9,192,631,770 cycles of the radiation produced by the transition between two levels of the caesium 133 atom. Admittedly we have got nothing better to describe the speed of light, but it does explain why that speed when calculated isn't a conveniently memorable number. Jim |
#23
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On 24/12/2017 22:01, Indy Jess John wrote:
On 24/12/2017 20:43, Bill Wright wrote: What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill You have to bear in mind that the metre is an arbitrary distance based on the circumference of the Earth, and a second was a fraction of the duration of the Earth's orbit, finally fixed as a number that is 9,192,631,770 cycles of the radiation produced by the transition between two levels of the caesium 133 atom. Admittedly we have got nothing better to describe the speed of light, but it does explain why that speed when calculated isn't a conveniently memorable number. I think what he's asking is why it's a constant, ie what makes it so, and why it is what it is rather than something else? Got any answer? |
#24
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On 24/12/17 22:53, Norman Wells wrote:
On 24/12/2017 22:01, Indy Jess John wrote: On 24/12/2017 20:43, Bill Wright wrote: What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill You have to bear in mind that the metre is an arbitrary distance based on the circumference of the Earth, and a second was a fraction of the duration of the Earth's orbit, finally fixed as a number that is 9,192,631,770 cycles of the radiation produced by the transition between two levels of the caesium 133 atom. Admittedly we have got nothing better to describe the speed of light, but it does explain why that speed when calculated isn't a conveniently memorable number. I think what he's asking is why it's a constant, ie what makes it so, and why it is what it is rather than something else? Got any answer? Because if it wasnt what it is, the world wouldn't be what it is, and in all likelihood he wouldn't be wherever here is to ask such damn fool questions. -- New Socialism consists essentially in being seen to have your heart in the right place whilst your head is in the clouds and your hand is in someone else's pocket. |
#25
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On 25/12/2017 08:21, The Natural Philosopher wrote:
On 24/12/17 22:53, Norman Wells wrote: On 24/12/2017 22:01, Indy Jess John wrote: Admittedly we have got nothing better to describe the speed of light, but it does explain why that speed when calculated isn't a conveniently memorable number. I think what he's asking is why it's a constant, ie what makes it so, and why it is what it is rather than something else? Got any answer? Because if it wasnt what it is, the world wouldn't be what it is, and in all likelihood he wouldn't be wherever here is to ask such damn fool questions. But it's a philosophical question. And I thought from your name that you might have an answer. Anyway, aren't all philosophical questions damn fool questions? |
#26
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On Mon, 25 Dec 2017 09:10:43 +0000, Norman Wells wrote:
But it's a philosophical question. And I thought from your name that you might have an answer. Natural Philosophy has nowt much to do with philosophy; it's simply the archaic term for science. Here's something that may help: http://www.physics.sfsu.edu/~lwilliam/sota/anth/ anthropic_principle_index.html -- This message may be freely reproduced without limit or charge only via the Usenet protocol. Reproduction in whole or part through other protocols, whether for profit or not, is conditional upon a charge of GBP10.00 per reproduction. Publication in this manner via non-Usenet protocols constitutes acceptance of this condition. |
#27
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On 25/12/17 09:10, Norman Wells wrote:
On 25/12/2017 08:21, The Natural Philosopher wrote: On 24/12/17 22:53, Norman Wells wrote: On 24/12/2017 22:01, Indy Jess John wrote: Admittedly we have got nothing better to describe the speed of light, but it does explain why that speed when calculated isn't a conveniently memorable number. I think what he's asking is why it's a constant, ie what makes it so, and why it is what it is rather than something else? Got any answer? Because if it wasnt what it is, the world wouldn't be what it is, and in all likelihood he wouldn't be wherever here is to ask such damn fool questions. But it's a philosophical question.Â* And I thought from your name that you might have an answer. I do, and that is it. Anyway, aren't all philosophical questions damn fool questions? No, often they are the most fundamental questions of all. You are asking the basic question - why is the world the way it is? And seeking an answer based on a notion of causality - that is, because something *caused* it to be that way. Causality, however is a human notion and not necessarily ubiquitous. If you insist that it is, you will arrive at notions of a Creator, be it a Big Bang, or a weird supernatural Intelligence. Merely in order to complete a chain of causality. The answer is to not ask a question framed in terms of normal relative reality about the nature of absolute reality. It's as silly as asking what color B flat is. The neatest 'explanation' is Taoism. The Tao is that which exists through itself. I.e. it perpetuates itself. The nature of the Tao is whatever yiu consider the world to be made from. In this case electromagnetic entities in a space time causality matrix. well its different from God and his Angels, but not much. -- "I am inclined to tell the truth and dislike people who lie consistently. This makes me unfit for the company of people of a Left persuasion, and all women" |
#28
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On 25/12/2017 08:21, The Natural Philosopher wrote:
I think what he's asking is why it's a constant, ie what makes it so, and why it is what it is rather than something else? Got any answer? Because if it wasnt what it is, the world wouldn't be what it is, and in all likelihood he wouldn't be wherever here is to ask such damn fool questions. So finding yourself in the very unusual position of not being able to concoct some bull**** answer you resort to abusing the questioner. I had an RI teacher like that. My awkward questions were met by him making me stand in the corridor. Bill |
#29
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On 27/12/17 00:55, Bill Wright wrote:
On 25/12/2017 08:21, The Natural Philosopher wrote: I think what he's asking is why it's a constant, ie what makes it so, and why it is what it is rather than something else? Got any answer? Because if it wasnt what it is, the world wouldn't be what it is, and in all likelihood he wouldn't be wherever here is to ask such damn fool questions. So finding yourself in the very unusual position of not being able to concoct some bull**** answer you resort to abusing the questioner. what are you on about? Thst is in fact the correct answer. With slice of humour added... I had an RI teacher like that. My awkward questions were met by him making me stand in the corridor. Bill |
#30
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On 24/12/2017 20:43, Bill Wright wrote:
What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? To save you wading through a load of vector partial differential equations have a look at the equation under the text "which identify" in the section: https://en.wikipedia.org/wiki/Maxwell's_equations#Vacuum_equations,_electromagne tic_waves_and_speed_of_light The summary is: Speed of light (or other EM radiation) is one over the square root of (μ (permeability) times ε (permittivity)). Permeability and permittivity are measures of the magnetic and electric properties (respectively) of a material. A common practice is to take the permeability and permittivity of a material and divide them by the permeability and permittivity of a vacuum. The resulting ratios are known as the relative permeability and relative permittivity respectively. For people familiar with electronic components relative permittivity is also known as dielectric constant in capacitors. It's the factor by which the capacitance is multiplied due to using a given dielectric material as an insulator rather than vacuum (or, more practically, air). Some more reading: https://en.wikipedia.org/wiki/Permeability https://en.wikipedia.org/wiki/Permittivity The number you get will depend on the units you use. If you use something other than SI units (metres, kilograms, seconds, etc) you'll get a different number, e.g. 186,282 miles per second. (But it should be the same speed, just expressed in different units.) -- Graham Nye news(a)thenyes.org.uk |
#31
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On 24/12/2017 20:43, Bill Wright wrote:
What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? The electro-magnetic behaviour of space is described by Maxwell's Equations. As newshound has suggested, it is possible to show* that a wave equation is a possible solution of Maxwell's Equations, and that the speed of the resulting wave would be equal to ... 1 / sqroot( permittivity of space * permeability of space) .... and that this value is exactly equal to the measured speed of light in space. This is how we know that light is an electro-magnetic wave. * This is science speak: It is trivial to show that = an undergrad can prove it It is easy to show that = a postgrad can prove it It may be proved that = The prof can prove it In this particular case, I was able to prove it at uni, and did so during a physics tutorial, which, I discovered much later from a bus-stop conversation between another student who'd been present with my then girl-friend, gave me something of a reputation for the subject. But I wouldn't want to be asked to prove it now! |
#32
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replying to Bill Wright, Iggy wrote:
Lies, Liars and Frauds...to put it precisely. Space "science" (laughable non-science) is the biggest bunch of contradictions ever. They claim authority, simply make an outlandish statement, never provide any proof nor duplication and the droolers obey. They tell us only what Real Science has duplicated and measured, though their patently ridiculous Big Bang crushed it all. Therefore, your speeds can't exist...according to them. However, your speeds must and do exist...according to them. -- for full context, visit https://www.homeownershub.com/uk-diy...n-1258527-.htm |
#33
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On 25/12/2017 05:14, Iggy wrote:
replying to Bill Wright, Iggy wrote: Lies, Liars and Frauds...to put it precisely. Space "science" (laughable non-science) is the biggest bunch of contradictions ever. They claim authority, simply make an outlandish statement, never provide any proof nor duplication and the droolers obey. They tell us only what Real Science has duplicated and measured, though their patently ridiculous Big Bang crushed it all. Therefore, your speeds can't exist...according to them. However, your speeds must and do exist...according to them. Did you check or proof read your ramblings before pressing return in your website, using dated software? You come across as not having a clue. Quoting text might have helped, though perhaps not! |
#34
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On Wed, 27 Dec 2017 02:17:40 +0000, Fredxx wrote:
On 25/12/2017 05:14, Iggy wrote: replying to Bill Wright, Iggy wrote: Lies, Liars and Frauds...to put it precisely. Space "science" (laughable non-science) is the biggest bunch of contradictions ever. They claim authority, simply make an outlandish statement, never provide any proof nor duplication and the droolers obey. They tell us only what Real Science has duplicated and measured, though their patently ridiculous Big Bang crushed it all. Therefore, your speeds can't exist...according to them. However, your speeds must and do exist...according to them. Did you check or proof read your ramblings before pressing return in your website, using dated software? You come across as not having a clue. Quoting text might have helped, though perhaps not! I think the value of these (and other) off-topic ramblings is to make it easy to populate the kill file quickly. |
#35
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On 24/12/17 20:43, Bill Wright wrote:
What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill Not everything has a cause. Some things Just Are. God was the traditional explanation of course. -- The theory of Communism may be summed up in one sentence: Abolish all private property. Karl Marx |
#36
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This mass increasing to an infinite number as you accelerate seems a little
odd. Maybe its the clock speed of the universe? Brian -- ----- - This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please! "The Natural Philosopher" wrote in message news On 24/12/17 20:43, Bill Wright wrote: What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've goggled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill Not everything has a cause. Some things Just Are. God was the traditional explanation of course. -- The theory of Communism may be summed up in one sentence: Abolish all private property. Karl Marx |
#37
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OT question
On Mon, 25 Dec 2017 08:18:36 +0000, The Natural Philosopher wrote:
"The theory of Communism may be summed up in one sentence: Abolish all private property." Marx was such a stupid ****. No one capable of critical thinking can possibly take his daft ideas seriously. I wish I could have sneaked up behind him in the British Library reading room and planted a stiletto in the back of his thick skull. -- This message may be freely reproduced without limit or charge only via the Usenet protocol. Reproduction in whole or part through other protocols, whether for profit or not, is conditional upon a charge of GBP10.00 per reproduction. Publication in this manner via non-Usenet protocols constitutes acceptance of this condition. |
#38
Posted to uk.tech.digital-tv,uk.d-i-y
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OT question
On 25/12/17 11:50, Cursitor Doom wrote:
On Mon, 25 Dec 2017 08:18:36 +0000, The Natural Philosopher wrote: "The theory of Communism may be summed up in one sentence: Abolish all private property." Marx was such a stupid ****. No one capable of critical thinking can possibly take his daft ideas seriously. I wish I could have sneaked up behind him in the British Library reading room and planted a stiletto in the back of his thick skull. I'll drink to that mate. Unfortuntaely Marxism is an inevitabe result of taking peasants off fields where nature insists on smome basic common sense, and plonking them in factories and cities, where nature doesn't feature and their innate capacity for pompous silliness can flourish unbounded, until you get the likes of Caroline Lucas or Jeremey Corbyn. -- Its easier to fool people than to convince them that they have been fooled. Mark Twain |
#39
Posted to uk.d-i-y
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OT question
On 25/12/2017 12:00, The Natural Philosopher wrote:
On 25/12/17 11:50, Cursitor Doom wrote: On Mon, 25 Dec 2017 08:18:36 +0000, The Natural Philosopher wrote: "The theory of Communism may be summed up in one sentence: Abolish all private property." Marx was such a stupid ****. No one capable of critical thinking can possibly take his daft ideas seriously. I wish I could have sneaked up behind him in the British Library reading room and planted a stiletto in the back of his thick skull. I'll drink to that mate. Unfortuntaely Marxism is an inevitabe result of taking peasants off fields where nature insists on smome basic common sense, and plonking them in factories and cities, where nature doesn't feature and their innate capacity for pompous silliness can flourish unbounded, until you get the likes of Caroline Lucas or Jeremey Corbyn. "It is enough that the people know there was an election. The people who cast the votes decide nothing. The people who count the votes decide everything." Stalin. |
#40
Posted to uk.tech.digital-tv,uk.d-i-y
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OT question
On 25/12/2017 08:18, The Natural Philosopher wrote:
On 24/12/17 20:43, Bill Wright wrote: What are the parameters that set the speed of electromagnetic transmission in a vacuum? I've googled everywhere but I can't find the answer. It's easy enough to find the figure but WHY? Why not 29,979,245.8 metres per second or 2,997,924,580 metres per second? Bill Not everything has a cause. Some things Just Are. God was the traditional explanation of course. I don't mean 'why' in the sense of there being a sentient being that decided it (my personal philosophy is long past that); I mean 'why' in the sense of wondering what the parameters are. Others have answered it. Bill |
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