Recent content by RayYates

Good "point". (pun intended). I like visual image created by the thread analogy. The beginning point becomes fixed in space-time and the balloon keeps expanding into the future dragging the event horizon with it. That's a very helpful way to imagine it.

I may have been one of those that suggested looking at the inside as the past and the outside as the future. This was in response to someone trying to calculate the center of the balloon (aka the universe). It was a way of getting him to visualize that everything in the universe is on the...

In non technical language.. OMG the scale is mind-blowing!

I'm pretty mathy :redface: but your a couple orders of magnitude ahead of me. :bugeye: If I asked, "What is ∏?" One could say = approximately 3927/1250. That would be a more precise answer than "the ratio between a diameter and circumference" but doesn't say what it is. Not to beat the...

Is there a non mathimatical definition of λ ? I know ∏ is the relationship between a circles radius and its circumference; c is the speed of light. Those are definitions I can get my head around. I googled Definition: cosmological constant and got an arbitrary constant in the equations...

I get that it's impractical to describe complex mathematical concepts without using math but as layman, most of this is over my head and I tend to focus on non-math sections and conclusions. I read pages 6 and 7 several times. So here's what I've learned. λ has not been precisely...

If I follow correctly then this is a calculation of the average matter density in the universe. Is this based on H0, H∞ or something else? If I may regress for a moment to an earlier post. I've read the link you provided http://arxiv.org/abs/1002.3966/ and think I follow. I also have come to...

If space is geometry, where dies dark energy come from? I had the impression it came from space itself or is that just speculation?

You put your finger on the point exactly.

marcus. I get it! I've read the entire posting twice and the concept has become clear. Thank you. The question I'm currently grappling with is, "What is the balloon? What is space?" I get that space time is stretchy, bendable, compressible. In regions of higher mass time moves slower, so...

Yes I see what you mean but does that also explain the observed increase in the rate of expansion. That's really what I was trying to get to.

Sorry, I don't know what that means.

As an interested layman, earlier in this thread it helped me get my head around the balloon analogy when I was reminded that the 2D surface of the balloon is the entire universe. There is no inside or outside so there is no "center". Rather think of the inside of the balloon as the past, the...

If increasing gravity slows time then time inside galaxies is slower than time between galaxies. If this assumption is correct, how would it affect red shift used to calculate the recession of galaxies?

I was thinking perhaps Dark Energy decays into space-time.