Re: New Terrell Rotation Animation

Op 10/02/2025 om 0:55 schreef ProkaryoticCaspaseHomolog:

On Sun, 9 Feb 2025 22:34:15 +0000, guido wugi wrote:
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Op 9/02/2025 om 22:24 schreef ProkaryoticCaspaseHomolog:

On Sun, 9 Feb 2025 17:54:22 +0000, guido wugi wrote:

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I believe this is what you were thinking about.
https://www.spacetimetravel.org/
https://www.tempolimit-lichtgeschwindigkeit.de/

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Yes, in particular
Was Einstein noch nicht sehen konnte - Visualisierung relativistischer
Effekte <https://www.tempolimit-lichtgeschwindigkeit.de/tompkins>
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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.

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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