Path: ...!news.mixmin.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: Python <python@invalid.org>
Newsgroups: sci.physics.relativity
Subject: Re: the notion of counter-intuitiveness in relativistic physics
Date: Sun, 11 Aug 2024 12:16:07 +0200
Organization: CCCP
Lines: 34
Message-ID: <v9a317$26krd$5@dont-email.me>
References: <GBEGTHyJnMpjHuJ0IoZO0OLSc1M@jntp>
 <cda33e42de10aeee9283e500b47a63f9@www.novabbs.com>
 <AE2L2lzGJn13Z_4dg3bpJC59QsA@jntp> <66b3d79f$0$3656$426a74cc@news.free.fr>
 <dlVAS4dgp1D4i_LVHm3d5U9hqow@jntp>
 <43ee5c178f7ae877c0c3e00e77386494@www.novabbs.com>
 <xHQxwI0qFFk4RXIOP_V9qQEYF6o@jntp>
 <03be6498d21bfde3edbac3669f10841c@www.novabbs.com>
 <jAzCAJq8FVCKps9bXn3yDr5Sh4U@jntp>
 <e6a7e71e31958ad0eec9f8b0555d03bf@www.novabbs.com>
 <h2AZmvcBZlMRhA47eIHkP9jDtT4@jntp>
 <97b33fc8fbf96960076de44282d1b9bb@www.novabbs.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Injection-Date: Sun, 11 Aug 2024 12:16:07 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="fa31a2dc4d142076876c03cc2d0bd0f5";
	logging-data="2315117"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/6lGEXjQTGHGQSIqUWzYy3"
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:QhsPbd/OWDKXvNbz55c/1ZInoVg=
Content-Language: en-US
In-Reply-To: <97b33fc8fbf96960076de44282d1b9bb@www.novabbs.com>
Bytes: 2853

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.
>>
>> <http://news2.nemoweb.net/jntp?h2AZmvcBZlMRhA47eIHkP9jDtT4@jntp/Data.Media:1>
>>
>> <http://news2.nemoweb.net/jntp?h2AZmvcBZlMRhA47eIHkP9jDtT4@jntp/Data.Media:2>
>>
>> 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