Big bang - Planck probe gets clearest glimpse yet of cosmic dawn.

[dtewi]

tombi123 said:

dtewi said:

Oooh. Fun nerdy terminology!

Multiple universes nor extra dimensions surprise me completely. I mean, there must be space outside of the universe, an infinite void that may be populated with other universes. And extra spatial dimensions are impossible to physically comprehend, but I'm sure there are more than three.

What I'm interested in is if this is proof of the Big Bang.

EDIT: Do the extra dimensions mean spatial dimensions or am I making an ass of myself?

Yes spatial dimensions (although some theoretical physicists are suggesting that there maybe 2 time dimensions).

These extra dimensions are likely to be 'curled up' into a ball like shape, with a diameter of around the Planck Length (roughly 1.6*10^-35 meters).

So there is a magic little ball in the universe with a fourth dimension?

In our universe, there is no possible way for us to see the fourth dimension since we only perceive in two dimension. On the same mindset, there is no two dimensional object in our universe, everything is three dimensional.

You know there could be four-dimensional beings floating around us, and we can't see them. I think the book Flatland does a good job of explaining the spatial dimensions without all the extremely confusing vocabulary.