one more thing :)
Sometimes you see these pictures taken by the Hubble telescope of very deep space galaxies, so far away that we´re seeing things the way they were when the universe was still very young...
How come in those pictures, galaxies are no closer to each other than pictures of...
Cool,.. I'll have to try to understand this stuff a bit better,. :) Thanks for all the answers to my (probably very strange) logic. It's very much appreciated! It gives me direction in my quest to understand all of this better.
That's confusion since the center of the black hole behind it then would be closer to you than the light source that's in between the black hole and you.
But I can see how that works for the observer and distorted space time. Still makes me wonder about expanding space though,.. we know the...
Thank you, that helps a lot to understand it. Also thanks for the contributions of the others.
But what about those 2 light beams? The one from near the black hole really will arrive later than the other one, right? Or am I wrong about that too?
I'm sure I'm having difficulties wording it right. I don't have all the terminology and english isn't my native language, but I hope I can somehow express myself clear enough to get the point across. :)
Here's a thing I thought about a lot:
You have a black hole at a certain distance from...
:)
Maybe I am. I just don't understand yet how I have things mixed up so what I'm asking still makes sense to me. This is why I started this thread to understand where I'm going wrong.
Actually I don't think that the result would be a higher density. It's the other way around. The higher...
Now I wonder what's the overal result of this mass loss to space density. Does loss of mass mean loss of gravity as well? I mean in the sense that space just got a little denser because there's less mass pulling on it from all sides?
If space gets denser, light travels slower through it. Not...
Great discussion everybody. I'm learning new things here (new for me of course.. :) )
About that ppb mass loss. It seems small but what's the ratio? 1 ppb over how many years?
Any ideas if that mass loss has always been at the same rate? I can imagine that when the universe was hotter, it...
I feel like that space density has something to do with space expansion. The oscillation would then be more like a sawtooth oscillation, which would explain the perception of a big bang. Is that computer quantum cosmology model that you mentioned showing something like that, or is it more like a...
Well,.. You´re right that I don't know a lot about these things,. :) Reading up I try, but it's not always that easy. Stephen Hawking is pretty good at explaining stuff in a way that you can (at least feel like you can) understand all this stuff a little bit.
Actually I'm liking this idea of...
Is pre-big bang not the same thing as the end of this universe? I mean: Would studying the end of the universe not be the same as what happened just before the big bang? I guess only if the universe would be oscillating.
Any thoughts on this?
But at the moment of the BigBang, there was no matter, just energy, and wasn't that a singularity? As far as I understand it, that's what Stephen Hawking proved.
Does Matter "Evaporate"?
I'm wondering if Matter always exists since the big bang or if matter over time "evaporates". I'm not sure if "evaporate" is the right term, but I don't know of a better word. Basically I mean: It's transferred into energy, never to be matter again.
Does that happen...