Sujet : Re: Is it a Joke? ? ?
De : relativity (at) *nospam* paulba.no (Paul.B.Andersen)
Groupes : sci.physics.relativityDate : 29. Aug 2024, 14:36:22
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vapteg$3va7q$3@dont-email.me>
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Den 29.08.2024 13:53, skrev Richard Hachel:
It is obvious that if it moves from left to right, transversely, or from right to left, the speed of light will be the same.
Let's say that I have not measured it yet, that I just know that it is very fast, so I cannot say precisely what it is.
But AT LEAST, can I suppose that it would be very surprising if it moved faster in one direction or another. Which would be an absurdity in a concept of refutation of absolute or privileged referent.
If I can measure this transverse speed from A to B (i.e. without possible Doppler effect that could distort my measurement) I will find Vo=3.10^8m/s.
And then, it's true, if I practice in the other direction, I will still find
Vo=3.10^8m/s.
It is equal in both directions, and it is logical that it should be.
I will now turn my device AB by 90°, and I will place myself this time, in a position perpendicular to what I was previously, and again, I will calculate the transverse speed of light from A to B.
Bingo!
From A to B, or from B to A, I will note Vo=3.10^8m/s
Tears of joy will then slowly flow down my pink cheek:
I have just proven something invariant.
Except that I am an idiot who has not understood anything at all, and who has not noticed the enormous bias that I have just described here.
What are you babbling about?
It is thoroughly experimentally verified that the speed of light
is isotropic, constant and invariant.
The number c = 299792458 m/s follows from the definition of the units.
Only an ignorant moron would claim:
"the speed of light depends on the position of the observer."
-- Paulhttps://paulba.no/