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From: guido wugi <wugi@brol.invalid>
Newsgroups: sci.physics.relativity
Subject: Re: New Terrell Rotation Animation
Date: Mon, 10 Feb 2025 16:06:02 +0100
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Op 10/02/2025 om 0:55 schreef ProkaryoticCaspaseHomolog:
> On Sun, 9 Feb 2025 22:34:15 +0000, guido wugi wrote:
>
>> Op 9/02/2025 om 22:24 schreef ProkaryoticCaspaseHomolog:
>>> On Sun, 9 Feb 2025 17:54:22 +0000, guido wugi wrote:
>
>>>
>>> I believe this is what you were thinking about.
>>> https://www.spacetimetravel.org/
>>> https://www.tempolimit-lichtgeschwindigkeit.de/
>>
>> Yes, in particular
>> Was Einstein noch nicht sehen konnte - Visualisierung relativistischer
>> Effekte <https://www.tempolimit-lichtgeschwindigkeit.de/tompkins>
>>
>> I also remember a Jonathan Doolin having some very nice gifs on same
>> topic, but they're in some obscure discussion forum thread I can't dig
>> up right now.
>
> Jonathan Doolin has quite a large YouTube presence. Most of his
> videos appear to be for classes that he taught at Carl Sandburg
> College. He's also been active on Quora. I imagine that somewhere he's
> provided contact information, so you should be able to email him.

Found it back:
https://www.physicsforums.com/threads/terrell-revisited-the-invisibility-of-the-lorentz-contraction.520875/page-5
also ditto/page-4
He also commented on my videos on "TP graphs you haven't seen yet":
https://www.youtube.com/watch?v=dxZqymjRIls&list=LL&index=31
https://www.youtube.com/watch?v=IiAaGVp631M&list=LL&index=32
not always understanding what he saw. So better see for yourself, if 
wishing so,
amongst other 'original' SRT visuals:
https://www.youtube.com/playlist?list=PL5xDSSE1qfb6zyVKJbe8POgj-8ijmh5o0

> My next animation will be of a large cube viewed from a fixed angle
> to illustrate the pronounced curvature effects that one can
> hypothetically observe. I put the traveling animation in the Special
> relativity article because of its relevance in interpreting apparent
> superluminal motions of black hole jets, etc. But this next
> animation does not have such immediate relevance in interpreting
> astronomical phenomena, so I'll probably stick in in the Terrell
> rotation article.

I've seen Terrell rotation "explained" this way: "seeing" the 
relativistic object as if rotated, while the combination of length 
contraction (a Lorentz feature) and Terrell rotation (a Doppler feature) 
leaves the object "seen really uncontracted" (!!!). An excellent example 
of dialectic confusion between two kinds of SRT "observation":
Lorentz features (measurement, back-calculation results), and
Doppler/"Einstein" features (actually *looking* at relativistic motion).

-- 
guido wugi