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| | : You might as well claim that clocks in a sporting game are synchronized based on relativity. That would lack credibility for the same reason.--[[User:Aschlafly|Andy Schlafly]] 10:28, 14 August 2010 (EDT) | | : You might as well claim that clocks in a sporting game are synchronized based on relativity. That would lack credibility for the same reason.--[[User:Aschlafly|Andy Schlafly]] 10:28, 14 August 2010 (EDT) |
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| | + | :: ''Ron, the collection of statements above could be construed as easily as ''disproving'' relativity rather than proving it. Decades after GPS was launched, observers still struggle to match the data to the theoretical predictions. If some relativistic calculations are included in the synchronization but others are not, then the theory is ''disproved'', not proved by the data.'' Effects come in various sizes. When calculating the trajectory of the projectile of a handgun, you don't include the [[Coriolis effect]]. When the bullets get faster and the range gets bigger, you have to. Does this mean that because only some classical effects are included in the first case, it has disproved classical mechanics? Frankly, that's just absurd. |
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| | + | :: ''As the [[Theory of Relativity]] page itself explains, the engineers ignored the complex predictions of relativity. And for obvious reasons: it's easier to synchronize the clocks directly based on communications!'' At the article of the [[Theory of Relativity]], a quote is used to bolster this claim: the same quote I've shown to be inappropriate as it is talking about other effects. From Ashby's [http://relativity.livingreviews.org/open?pubNo=lrr-2003-1&page=title.html Relativity in the Global Positioning System] : '''It has become common practice not to apply such offsets to Rubidium clocks as these are subject to unpredictable frequency jumps during launch. Instead, after such clocks are placed in orbit their frequencies are measured and the actual frequency corrections needed are incorporated in the clock correction polynomial that accompanies the navigation message.''' So, yes, the clocks aren't tempered with any longer - but the relativistic correction are incorporated nontheless. |
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| | + | :: '' Note the complete absence of any identification of a particular physicist or mathematician who supposedly provided the theoretical predictions of Relativity for the engineers. ''That is because there were no such theoretical predictions of Relativity used in the design!'' '' No, that's because the any decent physicists can answer the questions ''what's the expected relative and gravitationl time dilation at the satellite''. Einstein, Poincare and some others get the credit for coming up with the necessary formulas, but those who merely apply these formulas aren't mentioned... |
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| | + | :: ''You might as well claim that clocks in a sporting game are synchronized based on relativity. That would lack credibility for the same reason. '' The clocks of a sporting game aren't accurate enough to be influenced by non-classical effects. The clocks of the [[GPS]] are - and the effects are much greater in the height and at that velocity of a satellite. |
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| | + | ::Sorry to keep you waiting for this answer: my ISP at home (109.90.0.0/16) is still range-blocked (block ID is #63109), so I can contribute to Conservapedia only irregularly. But I don't think that this bothers you, as you may not like my comments anyhow. |
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| | + | ::[[User:RonLar|RonLar]] 09:26, 15 August 2010 (EDT) |
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| | ==My Great-grandfather== | | ==My Great-grandfather== |