Can someone explain this problem?
1. The speed of light is suppose to be a constant at 299,792,458 m/s.
2. The size of the universe is suppose to be billions of light years across.
3. The universe is suppose to have expanded to close to its present size during the 'Big Bang' in a fraction of a second.
It doesn't add up.
"Can someone explain this problem?
1. The speed of light is suppose to be a constant at 299,792,458 m/s.
2. The size of the universe is suppose to be billions of light years across.
3. The universe is suppose to have expanded to close to its present size during the 'Big Bang' in a fraction of a second.
"
The size of the visible universe is a little bigger than the Hubble volume. But, and this is usually, almost invariably, ignored, the whole universe by the popular model has a radius 25 billion times larger than the Hubble radius. The rest is not visible because it is moving away from us faster than the speed of light and always was after the inflation phase of the Big Bang was underway.
BTW, the speed of light is not the sacred limit of all possible speed in the Theory of Relativity either, even though popular legend says it is.
The entity that "exploded" in the Big Bang was a singularity prior to the Big Bang, and conventional physics don't apply to singularities (or so I've heard).
"3. The universe is suppose to have expanded to close to its present size during the 'Big Bang' in a fraction of a second."
I think your #3 is wrong. The expansion was fast to begin with, but not to include current galaxies, of which there are billions. And the expansion is ongoing.
From various books, I get the impression that our "universe" is but one of an infinite number of universes, and there are more dimensions of space than the three we are familiar with - some say ten - plus "time".
The universe has been expanding since the big bang. The wierd thing is, it appears to be accelerating. Dark matter/dark energy may be the cause.