My problem is the following : The way people now compare the two phenomena I get the idea that a signal is created with a certain frequency and higher in the gravitational field measured with a lower frequency. That frequency shift is then caused by the different gravitational potentials of the...
I think it should be possible to talk about properties of objects.
When I can say that the planet Earth has a certain mass and the Sun a certain temperature, without talking about reference frames or observers, why is that different in the example above about light ? (I DID hear about special...
Ok, that is clear.
Does this mean that the oscillating charge is affected by gravity, but the light it emits is not ?
So when the light is emitted it will have a constant frequency, but the observers have different frequencies.
That would mean that the light from the Sun is emitted at a lower...
Hi Orodruin, thanks for your reply. You wrote "First ..." but answered my second question ...
Does that mean that the first question is waiting for somebody else ?
Maybe I should explain more : When we use a light-clock it will be easier to compare the two phenomena Timedilation and...
Timedilation seems clear when you study special relativity and read about the Hafele-Keating experiment.
Gravitational redshift seems logical when you assume that light should lose energy when it is leaving a gravitational field.
But the two seem to be contradictory to each other.
Question 1...
Doesn't Doppler work on different velocities whereas Gravitational redshift works only in gravitational fields ? (or according to EEP to accelerating frames)
That is an important difference, I think.
I agree with Topicwriter that Timedilation and Gravitational Redshift seem to work opposite in...
I assume that the part of his work where he was making observations is the good part ...
Edwin Hubble is accepted as a good scientist too, because of his observations.
The question now is : "Are we open to look at those pictures with an objective approach ?"
But Arp's work is not the only...
Thank you Drakkith for welcoming me on this forum.
I would like to start a topic about H.C.Arp's observations. His theory / conclusions that he developed from his observations , I would like to keep out of the discussion.
Because I think his collection of "Peculiar Galaxies" are peculiar only...
You are right. Better be sure about the rules first.
I only hope that the rules will not suffocate the discussions.
When I am not sure, I will ask for advice.
I am eager to learn more about Physics. Tnx again