fishing net

[Michal Frackowiak]

szajtan odwieczny wrote:

> hello everybody. Got an idea to share.
> Once upon a time I thought about such a thing.
>  
> What was observed are the great voids (of size about 100 Mly in 
> diameter or even bigger) separated by some cosmic great scale
> structures so it altogether looks like a soap foam. Assuming that the 
> voids are empty, than the curvature of out local part of the
> Universe would look like - example in 2d: as we were pumping the 
> balloon but confined by a fishing net which doesn't allow the surface
> of the balloon for free expansion, and in the end the balloon is 
> quizzed by the strings of the net but it out stands in the holes of 
> the net between the strings. In 3d this would be little more 
> complicated to imagine but what do you thing about this ?
>  

that is correct. curvature is constant only in homogeneous universe. in 
the perturbed one it is not. but deviations are really small.
good luck
michal