- #1
Lapidus
- 344
- 11
So the universe starts with an amount of matter, radiation, a fixed spatial curvature constant and a cosmic constant. Due to the expansion of the universe matter and radiation dillute and the spatial curtvature decreases whereas the cosmic constant remains fixed.
Radiation dillutes faster than matter, and curvature decreases slower than both radiation and matter dillute. But nonetheless the spatial curvature decreases, it gets smaller the older the universe gets. (Right? Like a balloon that gets blown and which surface becomes less and less curved.)
Why then does spatial curvature become (better) observable in the latter stage of the universe?
THANK YOU
Radiation dillutes faster than matter, and curvature decreases slower than both radiation and matter dillute. But nonetheless the spatial curvature decreases, it gets smaller the older the universe gets. (Right? Like a balloon that gets blown and which surface becomes less and less curved.)
Why then does spatial curvature become (better) observable in the latter stage of the universe?
THANK YOU