Summations Only

Taq, dust bunnies moving toward the nozzle are going to lose pressure and that equals expansion. That's right, Taq, they expand.They enter the nozzle in their most expanded state and highest speed. What's wrong with that?

Catholic Scientist, in your example of a donut, let me ask you, where is the center of mass? Where is the barycenter? Where is the 'average density'greatest? At the barycenter, of course, but you'll ,never see that, so I don't want to argue about the barycenter any more, ,not with you!I'd rather ask you if you believe in Anti-Gravity?

No Nukes, You probably rock too.

Panda, if the black hole is spinning, and its spin matches your terminal velocity, you're not going to slow down ever!So let's keep this discussion at a scientific level, without your 'splitting hairs'. Can we?

How can I argue with you, Catholic Scientist, and you won't tell me if you can see beyond the Observable Universe? Please be honest, now.

You're repeating yourself, Peter. What did I just say about doing the same thing over and over again and expecting a different result? The answer hasn't changed. I don't have to be smarter than Newton, only smarter, or in this case saner, than you. Oh, yes, I'm very sure. As we've all discovered, you're not really responsive to external stimuli, only to whatever it is that is going on in your own head. You're generating your own reality - it should come as no surprise that the real world is different from your own random internal mental machinations.--PercyEdited by Percy, : Grammar.

Expansion/Contraction is not affected by spin.
If you inflate a balloon while it is spinning, it still expands (outward expansion) at the same speed as when it is not spinning.
If you deflate a balloon while it is spinning, is still contracts (inward expansion) at the same speed as when it is not spinning.Expansion is measured by the change in distance between the expansion 'surface' and the centre of the expansion.
Even if an object at the centre of the expansion is rotating, that does not affect how far the surface of the expansion is from the centre.Let's look at your own words again: So....how does it stop without decelerating?
I am not putting words in to your mouth - this is what you said and I am simply trying to get you to understand what you have said.You say that the expansion stops.
How can it stop without decelerating?So - to try and put it as simply as possible:
How does something stop without slowing down? If you don't want people pointing out your mistakes, then perhaps posting them on a discussion forum is not the best idea?

Ah, so you can see beyond the OU? How exactly did you determine that the Universe is finite? The expansion is omnidirectional. Therefore they are not moving towards a point. The only way to make us see it is to provide some real evidence and/or answer the problems we've raised with something far more than "I wish you could see this".I think it's safe to say that nobody in the history of the world or the future has seen/will see what you see.

The barycenter is the center of mass... its in the middle of the hole, the density there is zero.The average density for the donut only has one value, there is no greater or lesser one.

And the average density is not associated with a point. He is probably thinking of the center of mass.

*nods*
This does seem to be the main point that Peter is unable to grasp in his "Where is the 'average density 'greatest?" question.

Okay, Taq. We'll go back to your teeter-totter. If both users weigh 100 pounds, the weight at one end will be an average weight of 100 pounds.The weight at the fulcrum, the barycenter, is going to be an average of 200 pounds, at least.Now I don't want to argue this 'average density' thing with you. There are much more interesting things in Space, like are we going 'in' or 'out'?I keep asking, Taq, but you won't answer - can you see beyond the Observable Universe?

Now hold on, Percy. You believe in a Universe run by Anti-Gravity and Wikipeaedia says Anti-Gravity doesn't exist, so who's the headcase?You're never going to see it, Percy.

I don't agree, so please show the maths you did to work out that average.(The maths to work out the most common types of average is very simple, so I don't think I am asking for anything particularly arduous.)Edited by Panda, : No reason given.Edited by Panda, : No reason given.Edited by Panda, : No reason given.

You're experiencing delusions, another sign of insanity. Search as you will through this thread, you'll never see me state that I "believe in a Universe run by Anti-Gravity."The difference between sane and insane people is that sane people believe what we observe of the world and universe, while insane people believe whatever their own minds happen to produce, like that the accelerating expansion of the universe is like dust rushing toward a vacuum cleaner nozzle.As Panda has pointed out over and over, the dust is getting closer and closer together, while in our actual universe the galaxies are getting further and further apart.And as I pointed out, up until between 5 and 10 billion years ago the expansion was decelerating, after which it began accelerating, and you never explained how an expansion outward suddenly became an expansion inward.And as others have pointed out, you're terribly confused about something as simple as density.The facts pretty much confirm that you're terribly confused and totally daft. Your delusions are also fairly persistent, as I see from your Wikipedia user page that you've been arguing this position since at least 2011.--Percy