Brainlet; space is 3D, not 2D like this picture shows.
Its a sloppy but helpful analogy of how large concentrations of matter effect space/time around it.
Brainlet; space is 3D, not 2D like this picture shows.
Its a sloppy but helpful analogy of how large concentrations of matter effect space/time around it.
Yeah, doing further research, apparently in (1+1)-dimensional GR enough stuff cancels out to force space to be completely empty, and in (2+1)D you're allowed to have matter but space is flat everywhere that doesn't contain matter, so matter can't interact gravitationally.
Only in 3+1D do you actually get masses gravitating. Disappointing. Well, I suppose you can just use only coplanar / collinear masses and just show the relevant lower-dimensional slices of the coordinate system, even if the math itself is no simpler.
Think of time as a flat circle.
>I don't get gravity and I don't get space.
What's to get?
They both exist.
>Think of time as a flat circle.
how about no?
arxiv.org
this paper might interest you then it's not pop-sci from my understanding but it goes way over my head
So how much space is there?
While this illustration is good for imagining how gravity works, I don't think it's great for conceptualizing it in a 3D sense.
The way I usually think of it is that objects have a tendency to fall towards each other.
>daily mail
>futurism
>inquisitr
Next time try Nature.
Oh and no single theory can simultaneously explain all of the observed effects that can be explained by dark matter. The evidence for it is incredibly convincing. It even appears in the baryon acoustic oscillations of the CMB, which is an imprint of early universe physics.
i bet your stupid ass still believe that electrons orbit around nuclei like moon around earth