Re: Einstein's Relativity Disregards the Doppler Effect?

On Apr 2, 6:51 am, "harry" <harald.vanlintelButNotT...@xxxxxxx> wrote:
Guskz wrote:
<g...@xxxxxxxxxxx> wrote in message

news:1175464481.663848.294410@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Apr 1, 5:45 pm, "g...@xxxxxxxxxxx" <g...@xxxxxxxxxxx> wrote:

http://en.wikipedia.org/wiki/Aberration_of_light

Quote:"At the instant of any observation of an object, the apparent
position of the object is displaced from its true position by an
amount which depends upon the velocity of the observer."
--------------------------------------------------------------------------

I don't know if I made a mistake and the above is only for
celestial(orbiting)planes vs observation.

Therefore perhaps the word "aberration" should be skipped and instead
wouldn't a doppler effect on light (frequency spectrum shift) also
affect the calculations on the speed of light and the calculations on
Time (say the Twin Paradox for example)?

Meaning depending on the direction of the observation on light through
an intensed doppler effect the light would no longer be observed as
light (although it speed remains constant) but instead as perhaps a
sound wave (if moving away from observer) or alpha wave (if moving
towards observer)?

Would these affect the calculations on Einstein's Relavitiy (Time and
c)?
-------------------------

In short, no.
See for example Einstein in 1905 on Doppler:http://www.fourmilab.ch/etexts/einstein/specrel/www/, paragraph 7.
Harald

Thanks Harald.

It says at the end of Einstein's 7. Theory of Doppler's Principle and
of Aberration" that quote: "It follows from these results that to an
observer approaching a source of light with the velocity c, this
source of light must appear of infinite intensity."

So from the equations at the location you gave me above, I believe the
equations tell us that:
1. the intensitiy increases,
2. the velocity remains constant,
3. the frequency shifts
4. and the objects percieved angle trajectory changes?

--------------------------

What I don't understand exactly is say someone is sending me an
"S.O.S" signal through a series of light pulses therefore the INITIAL
Electro-Magnetic signal will reach my eye within the constant velocity
of "c" time delay but then the actual information (the frequency)
through pulses will either slow down or increase (depending if I'm
approaching or moving away (= doppler))?

So the time delay of the initial EM signal always remains the same
since "c" is constant (regardless of doppler effect) but then the time
delay of receiving the entire S.O.S will vary (based of on doppler
effect) ...that seems a little strange (Un-even)?


.

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