Words and concepts

[Nokton]

If space time is described as a 'fabric' that can be streached,
can it be contracted within the same terminology?
Nokton.

Put it in the dryer.

[Dragon Star]

Originally Posted by Nokton

If space time is described as a 'fabric' that can be streached,
can it be contracted within the same terminology?
Nokton.

Fabric is just a name we give it so we can rationalize observations we make within space, space as we know it has no proven qualities. Until we know for sure that space is actually the cause of expansion, there really isn't an answer.

[Nokton]

Originally Posted by Dragon Star

Fabric is just a name we give it so we can rationalize observations we make within space, space as we know it has no proven qualities. Until we know for sure that space is actually the cause of expansion, there really isn't an answer.

Dragon, respect you and your ideas much, have had much meaningful
dialogue with you in the past. I bypass your excuse of your age.
Dragon, was speaking of a concept, mere words confuse the truth.
Ok, respected friend, what is driving the galaxies apart?
You ever thought of negative gravity Dragon? Is it so impossible
That galaxies can be positive or negatively charged??
Do hope you understand me Dragon, value you,
Peter

[Dragon Star]

Originally Posted by Nokton

Ok, respected friend, what is driving the galaxies apart?

A not completely explained force(s).

Is it space?

Or is it something commonly found within space that we can not detect as of yet?

You ever thought of negative gravity Dragon?

Sure, but again, not proven. The probability that it's something we have no clue about yet over-weighs the probability that we already have it right.

Is it so impossible That galaxies can be positive or negatively charged??

Not at all, but keep in mind that charge and gravity are different entities.

[Blue Fire]

Just thought I'd put my own 2 cents in here. There's a good summary of Brian Greene's book The Fabric Of The Cosmos at wikipedia. It might be worth checking out, Nokton. I have the book and it's a good but challenging read. In any case, all we have are theories that haven't been ultimately proved beyond a doubt. Time will tell if the theories presented re the "fabric" of spacetime are accurate enough to confirm it's predictions. Newton's laws seem to work well enough here on Earth, and Einstein's theories have predicted accurately gravity's effects in space. But of course, these theories may be considered only steps in the right direction, at least for a time until someone verifies that they are at best incomplete. While I suspect that humanity has a long way to go in order absolutely "prove" anything, I also believe that we have to go with something! If it works, then so be it - it's all we have. We can stand around and keep harping that everything is "tentative" because nothing is proven beyond a shadow of a doubt, or we can keep exploring and keep thinking and keep experimenting and keep collecting data in order to move forward and further refine, confirm, or disprove current ideas about the nature of spacetime. In the meantime, I think it's worth comprehending what we think we know in terms of what the current cosmological and theoretical physics are.

But to your specific question as to what this "fabric" of spacetime is that it can be stretched (according to some current theories), or possibly be contracted, I'd say that that is a good question indeed. Of course it can only be answered within current theory, but then current theory is all we have right now. I don't know if Einstien's theory of gravity/acceleration applies here but he thought that spacetime can at least be warped by mass/acceleration. Now, whether spacetime can be "contracted", I'm not sure - I'd like to know also.... within the context of what we Think we know now.

I'm gonna go back and reread my books again to see if I can get a clue.

[Nokton]

Blue,
Thankyou for your considered response to my question.
It was posed for feedback of current knowledge on a vexed
question. How can we move forward if we still embrace the past.
That not only concerns science, but social mores.
Your response is eloquent, and answers many of the questions my
post was really about, how we think of things determines how we
really understand the real truth, and how we were 'told' the 'truth'.
Enjoy your post Blue, and your company. You have a flair for seeing,
and expressing, reason based upon evaluation of personal experience.
You will understand.
Nokton.

[Blue Fire]

Thanks for the vote of confidence, Nokton. Your contributions here are also valued and germain.

How can we move forward if we still embrace the past.
That not only concerns science, but social mores.

Good point. Nicely said.

[Nokton]

Blue and Dragon,
You are a pair, could sing with you both.
Who was it said, music is the language of the universe?
To you both, contend that Life is not an accident, but
a programme written within the genetic code. Nothing to do
with religion or any 'God', Oh my, but something beyond our present
understanding, and it is wonderful. Hope you understand.
Peter