Re: the notion of counter-intuitiveness in relativistic physics

Le 11/08/2024 à 02:11, gharnagel a écrit :

On Sat, 10 Aug 2024 23:35:40 +0000, M.D. Richard "Hachel" Lengrand wrote:

...

I'll remind you of it here, in observable form and in real form.
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R.H.

 Since one can always align motion with the x-axis when dealing with two
bodies,
there is no purpose in sines and cosines.  Doing so is just being a
stuffed shirt.

I didn't know the expression "stuffed shirt", thanks! You are absolutely
right!
   "a smug, conceited, and usually pompous person" (Merriam-Webster
dictionnary)
This applies perfectly to doctor "Hachel" Lengrand. He is very bad in
basic math, you know (even failing to solve 2 variable linear equations
systems on fr.sci.math on a regular basis). So he is very proud of
himself when adding trigonometric functions in situation where there
are clearly useless. As you wrote there is always a way to align
x-axis when dealing two bodies: he is doing the same when he
pontificates about "apparent speeds" formulas. Formulas that he
is unable to properly derive :
https://gitlab.com/python_431/cranks-and-physics/-/blob/main/Hachel/divagation_lengrand.pdf