Nice Answer - Thanks

From: Paul Valois <mpaulvalois@xxxxxxx>
Date: Thu, 28 Apr 2005 00:12:54 GMT

RP wrote:

It doesn't oscillate in its own frame, it's infinitely doppler shifted to the red. Frequency equals zero. A water wave doesn't oscillate in it's own frame either.

Thanks!

They say you can't ask a stupid question, but I seem to have mangaged to do it, huh?

Of course a photon doesn't oscillate from its own perspective! This is what MAKES the Dopler Effect after all, isn't it!.

Frequency is a FUNCTION of the relative motion of the photon.

Someone moving toward a photon at almost the speed of light will see the photon nearly infinitely blueshifted... While someone riding along just ahead of a photon at just under the speed of light will see it nearly completely redshifted with a frequency of almost zero.

Exactly the same thing as a surfer on a water wave compared to an observer on the shore.

Thanks for answering my dumb question.
.

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