Sujet : Re: Space-time interval (2)
De : wugi (at) *nospam* brol.invalid (guido wugi)
Groupes : sci.physics.relativityDate : 14. Aug 2024, 20:01:30
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v9iuu9$idej$1@dont-email.me>
References : 1 2 3 4
User-Agent : Mozilla Thunderbird
Op 13-8-2024 om 12:45 schreef Paul.B.Andersen:
Den 12.08.2024 22:25, skrev Richard Hachel:
Le 12/08/2024 à 21:06, Python a écrit :
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Finally, what is ds²? It is just -c².Tr²
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No! ds^2 = c^2 dt^2 - dl^2.
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LOL.
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Non : ds²=dl²-c²dt²
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https://paulba.no/pdf/TwinsByMetric.pdf
Chapter 1.
Nice to have a TP simulation, but one needs an app to install.
Here's my Desmos "TP simulator" (only the linear case, admittedly, no continuous accelerations here)
4 cases (2x2) shown:
1. Lorentz description
("observed" meaning: measured, back-calculated; showing Lorentz transform effects)
1a: POV hometwin
1b: POV traveltwin
2. "Doppler/Einstein" description
("observed" meaning: actually seeing, looking at, the other twin! Besides Lorentz, additional Doppler effects)
2a: POV hometwin
2b: POV traveltwin
https://www.desmos.com/calculator/aoacey9t1v?lang=nlMore SRT Desmos examples:
https://www.wugi.be/srtinterac.html-- guido wugi
Space-time interval (2)
Re: Space-time interval (2)