Re: The first postulate is a truism.

On Sun, 22 Jun 2025 11:25:52 +0000, J. J. Lodder wrote:

Mikko <mikko.levanto@iki.fi> wrote:
>

On 2025-06-20 18:55:34 +0000, LaurenceClarkCrossen said:
>

On Fri, 20 Jun 2025 9:06:49 +0000, Mikko wrote:
>

On 2025-06-19 17:37:29 +0000, LaurenceClarkCrossen said:
>

Perplexity:
>
"The First Postulate of Special Relativity
>
Statement of the First Postulate
>
The first postulate of special relativity, also known as the principle
of relativity, states:
>
The laws of physics are the same in all inertial frames of
reference."
>
>
"truism
/?tr?iz?m/  n. a statement that is obviously true and says nothing new
or interesting. —truistic/tr?istik/ adj." -Oxford American.

>
The first postulate is not a truism. It is possible to imagine a world
where it is not true and to believe that we actually live in a such
world.

>

Your reply does not explain how it is not obviously true and nothing new
that wasn't already known long before Einstein.

>
I did explain. And what I said was indeed known long before Einstein.
>
If the first postulate were a truism nobody would ever have believed
otherwise. But ancinet literature shows that the opposite belief was
common.

>
Indeed.
In particular Maxwell's equations were generally believed before 1905
to hold only in one prefered frame. (the rest frame of the aether)
>
Einstein's postulate applied to electromagnetism
was new and revolutionary, and seen as such at the time,
(by those who mattered)
>
Jan

The laws of electromagnetism apply to all IRFs.
Maxwell's equations do not.
Therefore, Maxwell's equations are not laws of physics.
"AI Overview
Maxwell's Equations in Electromagnetism - GeeksforGeeks
Yes, Maxwell's equations are considered laws of physics. They are a set
of four fundamental equations that describe the behavior of electric and
magnetic fields, and how they are generated and influenced by charges
and currents. These equations are foundational to classical
electromagnetism and are used in various technologies like power
generation, electric motors, and wireless communication."
"How School Destroys Your Mind from the Very Beginning | Schopenhauer
Nietzsche Illich Gatto"
https://www.youtube.com/watch?v=6BMD5RZFFgs&list=WL&index=1&t=219s