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#71
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Antennas led astray
John Smith I wrote:
Cecil Moore wrote: Richard Clark wrote: If it didn't oscillate (resonate actually in a magnetically biased electron fountain) at that frequency, it's probably Rubidium. What happens to its frequency of oscillation compared to a stationary observer as it approaches the speed of light? Pop that cesium atom with a hp pp laser and see if those vibs don't stray a bit ... Regards, JS a hp pp laser is not part of the mechanism used to measure cesium vibrations so your comment is irrelevant. Dave N |
#72
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Antennas led astray
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#73
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Antennas led astray
David G. Nagel wrote:
... a hp pp laser is not part of the mechanism used to measure cesium vibrations so your comment is irrelevant. Dave N No, not irrelevant--but, perhaps a poor example, but still, it should serve ... If the darn cesium atom won't vibrate consistently at the same freq, you are asking me to base beliefs on it? look-of-shock-and-awe! If something as simple as a high power pin-point laser can affect it ... Regards, JS |
#74
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Antennas led astray
Jim Kelley wrote:
Cecil Moore wrote: The definition is relative, not absolute. It's as absolute as anything we have. Name something absolute we could have used instead, Cecil. Please don't blame the messenger. If we could locate an atomic clock at the center of gravity of the Big Bang, we might have an absolute reference point - (assuming that point is not moving. :-) If the relative speed of the earth is changing, then the length of a second is also changing and we would have no way of knowing. Not to worry. Any relativistic motion on our part will only effect the clocks in the other reference frames. And we can't even communicate with any of those people. :-) But, Jim, that other reference frame may be yesterday on Earth. A second today may be shorter than a second was yesterday. I can prove that seconds are getting shorter. It takes me many more seconds to run 100 yards than it once did. I'm pretty sure that first second after the Big Bang wasn't anywhere near the length of a second now. -- 73, Cecil http://www.w5dxp.com |
#76
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Antennas led astray
wrote:
The speed of the Earth relative to what? Relative to the center of gravity of the Big Bang. But since the second is defined in the inertial frame of the Earth, it doesn't matter. How long was a second before the Earth existed? Seems to me that assuming the age of the universe can be calculated in Earth seconds is just as bad as assuming the Earth is the center of the universe. Similar Earth-centric arguments can be made for both concepts. BTW, you do know the second at sea level is different than the second on top of a mountain due to gravity? So how is it possible to calculate the age of the universe in Earth seconds? Are we talking sea level seconds or what? Are Black Holes the same age as the universe? -- 73, Cecil http://www.w5dxp.com |
#77
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Antennas led astray
Cecil Moore wrote:
wrote: Cecil Moore wrote: wrote: There is no such thing as a "Universal Time Frame". Isn't assuming that Earth time is an absolute reference a lot like assuming that the Earth is the center of the universe? Yeah, but I didn't say anything about Earth time or an absolute reference. I was agreeing with you and expanding a bit. Cecil: I am glad you responded here, I had missed a very good thing in Jims' text--absolute reference. I like "Absolute Time Reference" much, much better than "Universal Time-Frame." Regards, JS |
#78
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Antennas led astray
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#79
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Antennas led astray
Cecil Moore wrote:
wrote: The speed of the Earth relative to what? Relative to the center of gravity of the Big Bang. But since the second is defined in the inertial frame of the Earth, it doesn't matter. How long was a second before the Earth existed? Seems to me that assuming the age of the universe can be calculated in Earth seconds is just as bad as assuming the Earth is the center of the universe. Similar Earth-centric arguments can be made for both concepts. BTW, you do know the second at sea level is different than the second on top of a mountain due to gravity? So how is it possible to calculate the age of the universe in Earth seconds? Are we talking sea level seconds or what? Are Black Holes the same age as the universe? Cecil: Whoa! Where did you get your bottle of red pills at? Mine ain't THAT GOOD! Warmest regards, JS |
#80
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Antennas led astray
Cecil Moore wrote:
wrote: Cecil Moore wrote: wrote: There is no such thing as a "Universal Time Frame". Isn't assuming that Earth time is an absolute reference a lot like assuming that the Earth is the center of the universe? Yeah, but I didn't say anything about Earth time or an absolute reference. I was agreeing with you and expanding a bit. OK. I have a bit of a hair trigger when babblers are present. -- Jim Pennino Remove .spam.sux to reply. |
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