Re: What is a photon

On Tue, 3 Jun 2025 11:22:38 +0000, Paul.B.Andersen wrote:

Den 02.06.2025 05:16, skrev Bertietaylor:

On 01/06/2025 12:46, Paul B. Andersen wrote:

Den 01.06.2025 12:03, skrev bertitaylor:

A photon is a brief electromagnetic wave pulse travelling a light speed
in the medium of aether.
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Experiments show that the speed of light is invariant: [...]
How is that possible if light is waves in an aether ?

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Speed of light has to be variant in the Copernican model. Light is a
wave. All waves need media to propagate. Light's medium is aether.

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A bit confused, Bertietaylor?

Not at all.

The Copernican model is wrong, the Sun isn't the centre of the Universe.
And in 1543 Copernicus  knew nothing about the speed of light.

The Sun is at the centre of the solar system, of which you may have
heard. The Earth goes around the Sun. The Sun and the planets do NOT go
around the Earth in crystal spheres. Where the stars are supposedly
light from Heaven casting their light through pricks on the crystal
spheres.
WOOF woof-woof woof woof-woof woof
Bertietaylor

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You obviously meant to refer to the "Copenhagen interpretation",
that is the interpretation of quantum mechanics given
by Bohr and Heisenberg in ~1925.
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Modern quantum fields theories such as QED are based on SR.
In QED light is a particle and the speed of light is invariant.
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But forget quantum theories, it is irrelevant to the question
if the speed of light is invariant.
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Many experiments are performed to answer the question.
A few of them:
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https://paulba.no/paper/Kennedy_Thorndike.pdf
https://paulba.no/paper/Michelson_1913.pdf
https://paulba.no/paper/Alvager_et_al.pdf
https://paulba.no/paper/Babcock_Bergman.pdf
https://paulba.no/paper/Brecher.pdf
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The result is that it is thoroughly confirmed that
the speed of light is invariant.
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So I ask you again:
How can the speed of a wave in an aether be invariant?
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What is the speed of light measured in a frame of reference
where the aether is stationary?
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What is the speed of light measured in a frame of reference
where the aether is moving with the speed v?
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Make my day, claim that the speed of light isn't invariant.

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