Re: Space-time interval (2)

Le 13/08/2024 à 12:44, "Paul.B.Andersen" a écrit :

Den 12.08.2024 22:25, skrev Richard Hachel:

Le 12/08/2024 à 21:06, Python a écrit :
 

Finally, what is ds²? It is just -c².Tr²

>
No! ds^2 = c^2 dt^2 - dl^2.

 LOL.
 Non : ds²=dl²-c²dt²

 https://paulba.no/pdf/TwinsByMetric.pdf
Chapter 1.

 There are equations that are correct in your pdf, but also equations that are incorrect.
Unfortunately, I don't have time to do a thorough search, and to circle in red everything that is wrong and tell you why.
Anyway, it would be useless, and I no longer have the courage (I'm old, you know now) to want at all costs to give water to donkeys that are not thirsty.
I post here for fun, but I don't want to exhaust myself gesticulating in the void anymore.
R.H.