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#1
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Michael Coslo wrote:
Doppler effect is readily observable at audio and RF wavelengths. It is widely accepted that the effect continues at light wavelengths. The question is: Are all frequency shifts in the universe caused by Doppler effects? I say no. I say some frequency shifts are relativity effects. -- 73, Cecil http://www.w5dxp.com |
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#2
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Cecil Moore wrote:
Michael Coslo wrote: Doppler effect is readily observable at audio and RF wavelengths. It is widely accepted that the effect continues at light wavelengths. The question is: Are all frequency shifts in the universe caused by Doppler effects? I say no. I say some frequency shifts are relativity effects. Which is the gravitational redshift. Or do you propose another type too? - 73 de Mike KB3EIA - |
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#3
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Michael Coslo wrote:
Cecil Moore wrote: Michael Coslo wrote: Doppler effect is readily observable at audio and RF wavelengths. It is widely accepted that the effect continues at light wavelengths. The question is: Are all frequency shifts in the universe caused by Doppler effects? I say no. I say some frequency shifts are relativity effects. Which is the gravitational redshift. Or do you propose another type too? The "expanding" space between two galaxies could be a relativity effect and the shorter second due to relativity effects naturally results in a lower measured frequency. -- 73, Cecil http://www.w5dxp.com |
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#4
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Cecil Moore wrote:
Michael Coslo wrote: Cecil Moore wrote: Michael Coslo wrote: Doppler effect is readily observable at audio and RF wavelengths. It is widely accepted that the effect continues at light wavelengths. The question is: Are all frequency shifts in the universe caused by Doppler effects? I say no. I say some frequency shifts are relativity effects. Which is the gravitational redshift. Or do you propose another type too? The "expanding" space between two galaxies could be a relativity effect and the shorter second due to relativity effects naturally results in a lower measured frequency. Could be. My questions alway revolve around just what - or why - the effect is. The great thing about Doppler is that it works on so many scales. We should be able to perform experiments that will go a long way toward determining if such an effect exists. What I see however is that there are no great anomalies with the present model. That doesn't make it right, but it does mean it pretty much fits. Relativity also works at speeds lower and more local than across the universe, Astronauts and their craft who orbit the earth are "younger" than they would have been if they stayed on Earth. We use accelerators that act consistently with relativity. We probably should see some of what you are thinking of. - 73 de Mike KB3EIA - |
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#5
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Cecil Moore wrote:
Michael Coslo wrote: Doppler effect is readily observable at audio and RF wavelengths. It is widely accepted that the effect continues at light wavelengths. The question is: Are all frequency shifts in the universe caused by Doppler effects? I say no. I say some frequency shifts are relativity effects. -- 73, Cecil http://www.w5dxp.com The doppler shift of EM frequency is a relativistic effect, so you got that sorta right. -- Jim Pennino Remove .spam.sux to reply. |
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#6
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wrote:
The doppler shift of EM frequency is a relativistic effect, so you got that sorta right. The doppler red shift is thought to be because galaxies are receding from each other. If a rope stretched between those galaxies doesn't break with time, what would that imply about the recession? -- 73, Cecil http://www.w5dxp.com |
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#7
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Cecil Moore wrote:
wrote: The doppler shift of EM frequency is a relativistic effect, so you got that sorta right. The doppler red shift is thought to be because galaxies are receding from each other. If a rope stretched between those galaxies doesn't break with time, what would that imply about the recession? -- 73, Cecil http://www.w5dxp.com The sound of one hand clapping. -- Jim Pennino Remove .spam.sux to reply. |
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