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On 11-07-17 03:26, Fred J. McCall wrote :
Alain wrote: Also, the fact is that you need to take into account both Special and General Relativity for GPS to work. The satellites are moving fast enough and are far enough out of the gravity well for both effects to be significant. The relevant equations of Special Relativity were originally from Lorentz, and Poincaré showed that they were applicable in real life so it isn't really Einstein's Special Relativity that is needed, it is Poincaré's Relativity. Poincaré used observations of Mercury's orbit for his work. And Einstein used Special Relativity to develop General Relativity and was also aware that tweaking gravitational laws was necessary to accommodate Mercury. Mercury was a proof, not a prerequisite. Go read Henri Poindcaré. It isn't a prerequisite, but it was instrumental in the development of his relativity which predates Einstein's Special Relativity. Of course you don't need to know about mass-energy equivalence to make vegetable soup but it still is important in our everyday lives. Is it? How? As I said, for instance GPS. GPS isn't about mass-energy equivalence. I wasn't talking specifically about mass-energy equivalence. GPS uses Special and General relativity. For usage of mass-energy equivalence in our every day lives, maybe your computer is connected to an electric grid. Maybe there is some nuclear power plant on that grid. You probably already knew about nuclear power plants. I think you are trolling, you are getting close to plonk territory. Another way that telescopes were useful for the discovery of nuclear energy is that Einstein and other scientists at the time were well aware of the "black energy" of that time. That is, they knew that the Sun could not have as an energy source something like burning coal. It wouldn't last long enough. So looking for large amounts of energy hidden within the atom wasn't completely out of nowhere. It also had nothing to do with telescopes. See my reply to Quadibloc. Alain Fournier |
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Le 11-07-17 17:06, Fred J. McCall a écrit :
Alain wrote: On 11-07-17 03:26, Fred J. McCall wrote : Alain wrote: Also, the fact is that you need to take into account both Special and General Relativity for GPS to work. The satellites are moving fast enough and are far enough out of the gravity well for both effects to be significant. The relevant equations of Special Relativity were originally from Lorentz, and Poincaré showed that they were applicable in real life so it isn't really Einstein's Special Relativity that is needed, it is Poincaré's Relativity. Poincaré used observations of Mercury's orbit for his work. And Einstein used Special Relativity to develop General Relativity and was also aware that tweaking gravitational laws was necessary to accommodate Mercury. Mercury was a proof, not a prerequisite. Go read Henri Poindcaré. It isn't a prerequisite, but it was instrumental in the development of his relativity which predates Einstein's Special Relativity. Irrelevant. Yes it is relevant, try to follow the discussion. Of course you don't need to know about mass-energy equivalence to make vegetable soup but it still is important in our everyday lives. Is it? How? As I said, for instance GPS. GPS isn't about mass-energy equivalence. I wasn't talking specifically about mass-energy equivalence. Uh, please reading the preceding quoted material and explain to me again how you weren't talking about mass-energy equivalence IN RESPONSE TO A DIRECT QUESTION ASKING HOW MASS-ENERGY EQUIVALENCE IS IMPORTANT IN OUR EVERYDAY LIVES. Well if you put back in there the sentence just befo "GPS would not work if we didn't take into account relativity. Of course you don't need to know about mass-energy equivalence to make vegetable soup but it still is important in our everyday lives." then you see that we were not talking only about mass-energy equivalence, but about relativity. I admit that the second sentence isn't very well constructed. I meant the "it" in "it is still important in our every day lives" to mean relativity. As for the importance of mass-energy equivalence in our everyday lives as I have all ready said, anyone who knows anything about nuclear power plants knows that it is important. GPS uses Special and General relativity. For usage of mass-energy equivalence in our every day lives, maybe your computer is connected to an electric grid. Maybe there is some nuclear power plant on that grid. You probably already knew about nuclear power plants. I think you are trolling, you are getting close to plonk territory. Perhaps you should stop these handwaving arguments of yours, then, if someone pointing them out upsets you so? I don't mind people pointing out errors in my arguments. I just don't like people trolling. My point is only that telescopes did lead to discoveries that are important. And I don't think you have provided anything significant to refute that. If you see an error in my argument please point it out. But trying to pretend that mass-energy equivalence has no implication in our every day lives is not very useful in this discussion. Another way that telescopes were useful for the discovery of nuclear energy is that Einstein and other scientists at the time were well aware of the "black energy" of that time. That is, they knew that the Sun could not have as an energy source something like burning coal. It wouldn't last long enough. So looking for large amounts of energy hidden within the atom wasn't completely out of nowhere. It also had nothing to do with telescopes. See my reply to Quadibloc. Yeah, like they couldn't see THE SUN without a telescope.... Did you read my reply to Quadibloc? Telescopes were used to make the first serious estimate of the Earth-Sun distance. It could have been done without telescopes but it wasn't, because it would have been harder to do without telescopes. Alain Fournier |
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On 11-07-17 20:34, Fred J. McCall wrote :
Alain wrote: Le 11-07-17 17:06, Fred J. McCall a écrit : Alain wrote: On 11-07-17 03:26, Fred J. McCall wrote : Alain wrote: Also, the fact is that you need to take into account both Special and General Relativity for GPS to work. The satellites are moving fast enough and are far enough out of the gravity well for both effects to be significant. The relevant equations of Special Relativity were originally from Lorentz, and Poincaré showed that they were applicable in real life so it isn't really Einstein's Special Relativity that is needed, it is Poincaré's Relativity. Poincaré used observations of Mercury's orbit for his work. And Einstein used Special Relativity to develop General Relativity and was also aware that tweaking gravitational laws was necessary to accommodate Mercury. Mercury was a proof, not a prerequisite. Go read Henri Poindcaré. It isn't a prerequisite, but it was instrumental in the development of his relativity which predates Einstein's Special Relativity. Irrelevant. Yes it is relevant, try to follow the discussion. No it is not relevant, try to follow the discussion. Poincaré's relativity is needed for GPS to work. Poincaré used telescopic observations of Mercury to develop his relativity. Do you see how telescopic observations were relevant for GPS now? Of course you don't need to know about mass-energy equivalence to make vegetable soup but it still is important in our everyday lives. Is it? How? As I said, for instance GPS. GPS isn't about mass-energy equivalence. I wasn't talking specifically about mass-energy equivalence. Uh, please reading the preceding quoted material and explain to me again how you weren't talking about mass-energy equivalence IN RESPONSE TO A DIRECT QUESTION ASKING HOW MASS-ENERGY EQUIVALENCE IS IMPORTANT IN OUR EVERYDAY LIVES. Well if you put back in there the sentence just befo "GPS would not work if we didn't take into account relativity. Of course you don't need to know about mass-energy equivalence to make vegetable soup but it still is important in our everyday lives." then you see that we were not talking only about mass-energy equivalence, but about relativity. I admit that the second sentence isn't very well constructed. I meant the "it" in "it is still important in our every day lives" to mean relativity. As for the importance of mass-energy equivalence in our everyday lives as I have all ready said, anyone who knows anything about nuclear power plants knows that it is important. Wriggle all you like. When asked HOW DOES MASS-ENERGY EQUIVALENCE AFFECT OUR DAILY LIVES *YOU* brought up GPS. You didn't ask "HOW DOES MASS-ENERGY EQUIVALENCE AFFECT OUR DAILY LIVES" what you wrote was "Is it? How?" Because english is not a formal langage, the meaning of "it" can be more than one thing. As I already explained there is a sentence up there that I didn't construct very well bringing confusion to the meaning of "it". Therefore when I brought up GPS I was bringing it up as an example of the importance of relativity in our everyday lives not of mass-energy equivalence. There I hope that makes this clear for you. If not please follow-up in alt.semantics.idiocy, I promise I will give your response there all the attention it warrants. GPS uses Special and General relativity. For usage of mass-energy equivalence in our every day lives, maybe your computer is connected to an electric grid. Maybe there is some nuclear power plant on that grid. You probably already knew about nuclear power plants. I think you are trolling, you are getting close to plonk territory. Perhaps you should stop these handwaving arguments of yours, then, if someone pointing them out upsets you so? I don't mind people pointing out errors in my arguments. I just don't like people trolling. My point is only that telescopes did lead to discoveries that are important. But you then preceded to offer up a bunch of stuff that didn't require telescopes. Poincaré did use telescopic measurements to develop his relativity which is a very important scientific theory with implications in our every day lives. Newton used indirectly telescopic observations from Tyco Brahe to develop his theory of gravitation. Even if you want to ignore this it is true. And I don't think you have provided anything significant to refute that. If you see an error in my argument please point it out. But trying to pretend that mass-energy equivalence has no implication in our every day lives is not very useful in this discussion. And offering up GPS as the reason it does is less than useful. As said above and in a previous post, my GPS remark was about relativity not about mass-energy equivalence. Once again if you want to continue to debate that point go to alt.semantics.idiocy. Another way that telescopes were useful for the discovery of nuclear energy is that Einstein and other scientists at the time were well aware of the "black energy" of that time. That is, they knew that the Sun could not have as an energy source something like burning coal. It wouldn't last long enough. So looking for large amounts of energy hidden within the atom wasn't completely out of nowhere. It also had nothing to do with telescopes. See my reply to Quadibloc. Yeah, like they couldn't see THE SUN without a telescope.... Did you read my reply to Quadibloc? Telescopes were used to make the first serious estimate of the Earth-Sun distance. It could have been done without telescopes but it wasn't, because it would have been harder to do without telescopes. It was done numerous times long before the invention of telescopes. Solar parallax can be done without telescopes (and was). In point of fact, the first measurements using telescopes (Wendelin - 1635) weren't all that much more accurate than those of Aristarchus in the 3rd Century BC. Thank you for the information. I think this is the first useful thing you have said in this thread. You see it isn't all that difficult. Of course, the fact that telescopic observations were not used for the first measurements of the Earth-Sun distance doesn't change the fact that they were used for the other examples given above (Newton's gravity and Poincaré's relativity). Therefore I stand by my statement that telescopes have been useful in making scientific discoveries important in our every day lives in the past. Alain Fournier |
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On Jul 18, 4:57*pm, Alain Fournier wrote:
On 11-07-17 20:34, Fred J. McCall wrote : Alain *wrote: Le 11-07-17 17:06, Fred J. McCall a écrit : Alain * wrote: On 11-07-17 03:26, Fred J. McCall wrote : Alain * *wrote: Also, the fact is that you need to take into account both Special and General Relativity for GPS to work. The satellites are moving fast enough and are far enough out of the gravity well for both effects to be significant. The relevant equations of Special Relativity were originally from Lorentz, and Poincaré showed that they were applicable in real life so it isn't really Einstein's Special Relativity that is needed, it is Poincaré's Relativity. Poincaré used observations of Mercury's orbit for his work. And Einstein used Special Relativity to develop General Relativity and was also aware that tweaking gravitational laws was necessary to accommodate Mercury. Mercury was a proof, not a prerequisite. Go read Henri Poindcaré. It isn't a prerequisite, but it was instrumental in the development of his relativity which predates Einstein's Special Relativity. Irrelevant. Yes it is relevant, try to follow the discussion. No it is not relevant, try to follow the discussion. Poincaré's relativity is needed for GPS to work. Poincaré used telescopic observations of Mercury to develop his relativity. Do you see how telescopic observations were relevant for GPS now? Of course you don't need to know about mass-energy equivalence to make vegetable soup but it still is important in our everyday lives. Is it? *How? As I said, for instance GPS. GPS isn't about mass-energy equivalence. I wasn't talking specifically about mass-energy equivalence. Uh, please reading the preceding quoted material and explain to me again how you weren't talking about mass-energy equivalence IN RESPONSE TO A DIRECT QUESTION ASKING HOW MASS-ENERGY EQUIVALENCE IS IMPORTANT IN OUR EVERYDAY LIVES. Well if you put back in there the sentence just befo "GPS would not work if we didn't take into account relativity. Of course you don't need to know about mass-energy equivalence to make vegetable soup but it still is important in our everyday lives." then you see that we were not talking only about mass-energy equivalence, but about relativity. I admit that the second sentence isn't very well constructed. I meant the "it" in "it is still important in our every day lives" to mean relativity. As for the importance of mass-energy equivalence in our everyday lives as I have all ready said, anyone who knows anything about nuclear power plants knows that it is important. Wriggle all you like. *When asked HOW DOES MASS-ENERGY EQUIVALENCE AFFECT OUR DAILY LIVES *YOU* brought up GPS. You didn't ask "HOW DOES MASS-ENERGY EQUIVALENCE AFFECT OUR DAILY LIVES" what you wrote was "Is it? How?" Because english is not a formal langage, the meaning of "it" can be more than one thing. As I already explained there is a sentence up there that I didn't construct very well bringing confusion to the meaning of "it". Therefore when I brought up GPS I was bringing it up as an example of the importance of relativity in our everyday lives not of mass-energy equivalence. There I hope that makes this clear for you. If not please follow-up in alt.semantics.idiocy, I promise I will give your response there all the attention it warrants. GPS uses Special and General relativity. For usage of mass-energy equivalence in our every day lives, maybe your computer is connected to an electric grid. Maybe there is some nuclear power plant on that grid. You probably already knew about nuclear power plants. I think you are trolling, you are getting close to plonk territory. Perhaps you should stop these handwaving arguments of yours, then, if someone pointing them out upsets you so? I don't mind people pointing out errors in my arguments. I just don't like people trolling. My point is only that telescopes did lead to discoveries that are important. But you then preceded to offer up a bunch of stuff that didn't require telescopes. Poincaré did use telescopic measurements to develop his relativity which is a very important scientific theory with implications in our every day lives. Newton used indirectly telescopic observations from Tyco Brahe to develop his theory of gravitation. Even if you want to ignore this it is true. And I don't think you have provided anything significant to refute that. If you see an error in my argument please point it out. But trying to pretend that mass-energy equivalence has no implication in our every day lives is not very useful in this discussion. And offering up GPS as the reason it does is less than useful. As said above and in a previous post, my GPS remark was about relativity not about mass-energy equivalence. Once again if you want to continue to debate that point go to alt.semantics.idiocy. Another way that telescopes were useful for the discovery of nuclear energy is that Einstein and other scientists at the time were well aware of the "black energy" of that time. That is, they knew that the Sun could not have as an energy source something like burning coal. It wouldn't last long enough. So looking for large amounts of energy hidden within the atom wasn't completely out of nowhere. It also had nothing to do with telescopes. See my reply to Quadibloc. Yeah, like they couldn't see THE SUN without a telescope.... Did you read my reply to Quadibloc? Telescopes were used to make the first serious estimate of the Earth-Sun distance. It could have been done without telescopes but it wasn't, because it would have been harder to do without telescopes. It was done numerous times long before the invention of telescopes. Solar parallax can be done without telescopes (and was). *In point of fact, the first measurements using telescopes (Wendelin - 1635) weren't all that much more accurate than those of Aristarchus in the 3rd Century BC. Thank you for the information. I think this is the first useful thing you have said in this thread. You see it isn't all that difficult. Of course, the fact that telescopic observations were not used for the first measurements of the Earth-Sun distance doesn't change the fact that they were used for the other examples given above (Newton's gravity and Poincaré's relativity). Therefore I stand by my statement that telescopes have been useful in making scientific discoveries important in our every day lives in the past. Alain Fournier True, that perhaps at most 0.1% of our mostly public-funded astronomy and off-world explorations has materialized into at least something we have benefited from. How about the other 99.9% that hasn't paid off, outside of all the usual insider job and benefit security? http://groups.google.com/group/googl...t/topics?hl=en http://groups.google.com/group/guth-usenet/topics?hl=en http://www.wanttoknow.info/ http://translate.google.com/# Brad Guth, Brad_Guth, Brad.Guth, BradGuth, BG / “Guth Usenet” |
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On 11-07-19 14:14, Brad Guth wrote :
True, that perhaps at most 0.1% of our mostly public-funded astronomy and off-world explorations has materialized into at least something we have benefited from. How about the other 99.9% that hasn't paid off, outside of all the usual insider job and benefit security? The pay off of that kind of science is very difficult to establish. Off-world exploration and astronomy can bring once in a while great advancements with very important consequences, but most of the time it brings up mostly things that are fun and cool to know about or even complete failures. The problem is that it is very difficult to decide before hand what is the 0.1% which will pay off and what is the 99.9% which will just show cool stuff or simply fail (I use here your numbers, 0.1% and 99.9%, without implying that they are accurate figures). I wouldn't consider foolish a government who would decide not to fund astronomy neither would I consider foolish a government who does. Alain Fournier |
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Alain Fournier wrote:
Brad Guth wrote : True, that perhaps at most 0.1% of our mostly public-funded astronomy and off-world explorations has materialized into at least something we have benefited from. How about the other 99.9% that hasn't paid off, outside of all the usual insider job and benefit security? The pay off of that kind of science is very difficult to establish. Off-world exploration and astronomy can bring once in a while great advancements with very important consequences, but most of the time it brings up mostly things that are fun and cool to know about or even complete failures. The problem is that it is very difficult to decide before hand what is the 0.1% which will pay off and what is the 99.9% which will just show cool stuff or simply fail (I use here your numbers, 0.1% and 99.9%, without implying that they are accurate figures). I wouldn't consider foolish a government who would decide not to fund astronomy neither would I consider foolish a government who does. One of the goals of good government is to expand the bounds of the civilization that government resides in. This can be literal expansion in the form of colonization or figurative expansion in the form of culture. Government expends money for non-monetary ends. Some such expenditure is pouring money into the coffers of the poor and unproductive citizenry in the knowledge that some in the next generation will be productive. Some such expenditure is building the future. Science funding is rather like arts funding in that sense. It projects culture into the future. A government that does not look to the future is the government of a declining people. A person that does not look to the future pulls their culture down. |
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On 11-07-20 11:34, Doug Freyburger wrote :
One of the goals of good government is to expand the bounds of the civilization that government resides in. This can be literal expansion in the form of colonization or figurative expansion in the form of culture. Government expends money for non-monetary ends. Some such expenditure is pouring money into the coffers of the poor and unproductive citizenry in the knowledge that some in the next generation will be productive. Some such expenditure is building the future. Science funding is rather like arts funding in that sense. It projects culture into the future. A government that does not look to the future is the government of a declining people. A person that does not look to the future pulls their culture down. That is a political choice. Another government may put a higher priority on balancing its budget. Personally, I tend to be favourable to this kind of spending. But I don't consider a government who as other priorities to be necessarily a backward government. Alain Fournier |
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