Re: New Terrell Rotation Animation

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Sujet : Re: New Terrell Rotation Animation
De : tomyee3 (at) *nospam* gmail.com (ProkaryoticCaspaseHomolog)
Groupes : sci.physics.relativity
Date : 09. Feb 2025, 22:24:27
Autres entêtes
Organisation : novaBBS
Message-ID : <7920867a73fc70ede7b8cef4add1adab@www.novabbs.com>
References : 1 2
User-Agent : Rocksolid Light
On Sun, 9 Feb 2025 17:54:22 +0000, guido wugi wrote:

Op 9/02/2025 om 16:25 schreef ProkaryoticCaspaseHomolog:
This morning, I completed an animation for Wikipedia
https://commons.wikimedia.org/wiki/File:Terrell_Rotation_and_Illusory_FTL.gif#%7B%7Bint%3Afiledesc%7D%7D
>
>
No major insights, but it was fun to program. I've added it to the
article on Special relativity
https://en.wikipedia.org/wiki/Special_relativity#Measurement_versus_visual_appearance
>
>
Nice work! I've seen earlier well-done German animations, don't know
where I kept the links though.
I believe this is what you were thinking about.
https://www.spacetimetravel.org/
https://www.tempolimit-lichtgeschwindigkeit.de/

About "Measurement_versus_visual_appearance", that has always been a
topic of interest to me, and it took years (if not decades:) to see it
trickle in to SRT descriptions (before that, there was general confusion
between both descriptions, still going on in some minds:).
>
Here are my latest Desmos exercises on it:
https://www.wugi.be/srtinterac.html (under: Measuring relativistic
motion, and Seeing it)
(older QB examples at https://www.wugi.be/paratwin.htm and
https://www.wugi.be/qbRelaty.html)
"Terrell rotation" can be seen at work in all kinds of position, in 2D.
The only "direct vision" of pure Lorentz length contraction is far away
along the observer-based perpendicular [line/plane] to the direction of
motion.
:(I'm confident though that my graphs won't make it to Wiki):

Date Sujet#  Auteur
9 Feb 25 * New Terrell Rotation Animation15ProkaryoticCaspaseHomolog
9 Feb 25 `* Re: New Terrell Rotation Animation14guido wugi
9 Feb 25  `* Re: New Terrell Rotation Animation13ProkaryoticCaspaseHomolog
9 Feb 25   `* Re: New Terrell Rotation Animation12guido wugi
10 Feb 25    +* Re: New Terrell Rotation Animation7Richard Hachel
10 Feb 25    i`* Re: New Terrell Rotation Animation6ProkaryoticCaspaseHomolog
10 Feb 25    i `* Re: New Terrell Rotation Animation5Richard Hachel
10 Feb 25    i  `* Re: New Terrell Rotation Animation4Python
10 Feb 25    i   `* Re: New Terrell Rotation Animation3Richard Hachel
10 Feb 25    i    `* Re: New Terrell Rotation Animation2Python
10 Feb 25    i     `- Re: New Terrell Rotation Animation1Richard Hachel
10 Feb 25    `* Re: New Terrell Rotation Animation4ProkaryoticCaspaseHomolog
10 Feb 25     +- Re: New Terrell Rotation Animation1ProkaryoticCaspaseHomolog
10 Feb 25     `* Re: New Terrell Rotation Animation2guido wugi
10 Feb 25      `- Re: New Terrell Rotation Animation1Richard Hachel

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