So is the cosmological constant just something Einstein added just because without mathematical logic or does it come from something like an integration constant?
t. undergrad physics
>>8596477
its about tree fiddy
>>8596482
Also ITT discuss what field the niggers of science are.
>>8596477
It was just added as an additional parameter
like as if when
F(x,x') = m · x''(t)
wouldn't work for some experiment and you'd try to reconcile the experimental findings with a modified equation
F(x,x') = m · x''(t) · (1 + q·x'''(t))
where q is tiny, and for q=0 you'd obtain the old equation. It's an ad hoc change of the theory.
>>8596477
> just something Einstein added
>added
>implying this brainlet could do anything more than parroting great minds
>>8596493
>Einstein
>"great mind"
>not simply being some schizo who got lucky
>>8596487
Oh okay, ty my dude.
>>8596497
>(You)
>reading comprehension
>>8596477
Modern theories, basically work like this:
>You make conceptional assumptions (e.g. the Lagrangian of the electromagnetic interaction has a U(1) symmetry)
>You construct a maximal theory that obey those assumptions (here, literally all possible terms that are U(1) symmetrical)
>You identify all parameters that emerge in your theory.
The cosmological constant is just a parameter that does not contradict the concepts of GR, so it's added, because it can be. I'm not an expert on GR specifically, so I'm not sure where exactly it emerges, but that's how it generally works.