Rotating Universe: Instant Axis Rotation Proven!

[Lino]

Thanks Bcrowell.

Regards,

Noel.

 

[RichyRich]

1. Would rotation of the universe result in similar effects to rotations observed within the universe? and why?
2. What are the fundamental differences between the concept that the universe may rotate about all points within itself, to the universe may rotate about point(s) outside of itself?
3. Is it possible that theory could play a role in proving/disproving universal rotation?

 

[RichyRich]

Strange as I am the person that started this thread, that my questions are answered least! Are the questions I ask unscientific or are people just replying to points they wish to? I thought this was a discussional forum. I find the lack of conversation startling!

 

[RichyRich]

1. Not necessarily.
2. Dont know.
3. Yes.
That was quite simple.
I will end this thread now and go to a site where people will answer questions they are not 'comfortable' with. I find reciting other peoples work in a robot fashion without discussing the implications of that work unscientific and quite frankly inhuman. Good luck looking for vorticities!

 

[Imax]

RichyRich :

I can see you’ve given this a lot of thought, but without a reference point it could be difficult to establish that the universe is rotating, especially if that reference point lies outside the observable universe. If you believe that the entire universe is rotating, which it could be, then you need to describe experiments which can support your point of view. Is it something like a coriolis effect?

 

[Chronos]

1. Not necessarily.
2. Dont know.
3. Yes.
That was quite simple.
I will end this thread now and go to a site where people will answer questions they are not 'comfortable' with. I find reciting other peoples work in a robot fashion without discussing the implications of that work unscientific and quite frankly inhuman. Good luck looking for vorticities!

I attempt to allow credible, published papers speak for themselves with minimal injection of personal opinion. It's not about comfort, it's about credibility. It's up to you to critique papers we have referenced supporting our views. Citing papers that draw contrary conclusions would be a plus you have studiously avoided thus far.

 

[RichyRich]

Imax, I understand the need for experiment and test. All I can say these are views I get from researching physics. I did ask is it possible to programme a computer to see if a simulation could help-I had no answer. Where is the experiment for p-branes, inflation and many other ideas? Admittedly these ideas are from much more credible sources! Yet, they are ideas. I havnt tried to say the moon is cheese; I came here to see if my views were consistent with current science. I have no wish to detract from science. Personally as I've said before I don't believe the answer will come from observation.
Chronos I have found yourself and bcrowell to be very frustrating. You both clearly are more learned in physics than myself. I don't wish my views to be in ignorance; I wish to learn. The papers you have mentioned I have read. What I understood didnt tell me my views were wrong. However there was much I didnt understand-I did ask for clarification at times but received no such help. Do you ever read something and have questions? That is why I came to a forum where there is feedback. I can't ask a published paper a question! If you look at past posts you will see i have critiqued papers and asked questions. I havnt knowingly avoided anything that goes against my views-I don't see the point in that at all. From what I have seen there are contrary conclusions-all from observation, which I have said, I question anyway. I have stated why I question observation in this matter. I would be grateful if you would summarise the objections you have cited to a rotating universe. i must have missed them. The following questions have not only been unanswered, but ignored!
1 would we expect to observe dynammical effects from rotation if the observable universe were a tiny fraction of the actual universe. I believe not. If I am wrong please tell me. I believe this has been proposed as the reason we have not found any magnetic monopoles.
2. would rotation of the universe illicit similar results as rotations within the universe? again, i think not. i would think this is rotation unlike any rotations we know about.
3. why is theory unlikely to play a part in resolving this issue?
Credible answers to these questions would be welcomed. If you look at past posts, see how many of my specific views or questions have been replied to-hence my frustration. With respect, there is no point posting anything else unless these points are answered in some way. Dare I say it, I feel like I am going in circles, not the universe!

 

[bcrowell]

The papers you have mentioned I have read. What I understood didnt tell me my views were wrong. However there was much I didnt understand-I did ask for clarification at times but received no such help.

It sounds like you need more background in math and physics in order to understand this subject. If you start a new thread in the relativity forum asking for suggestions on how to start a program of self-study in GR, I'm sure you will receive many helpful answers. The answers you've gotten have been the kind of answers you should have expected, given the tone you set starting with your post #1.

 

[RichyRich]

If you read post 23 you see I apologised for the manner of my opening statement, without prompt. I mistakingly thought an abrupt manner would invite more comment/criticism. Also, my sense of humour possibly doesn't travel way. Thankyou for talking to me, and not around me, this time.
I understand what you say about the tone I set and I can only apologise again. I would say , however, that it seems pointless to reply to some points and not others. I self-study as much as I can on physics in general. Unfortunately I am at a level that cannot be raised without feedback and an amount of time I don't have. I do realize that , to a large degree, I am talking from ignorance. I am intelligent enough to realize that! This is why I came here. Its not about not accepting what I don't like. I have genuinely not seen anything here that tells me my ideas MUST be wrong, and/ or they are not consistent with current science. Some objections to my ideas have been raised. I have asked if these objections are valid. Then I get no response. Thats not much of a discussion to me! Id rather not take a course on GR. If, for instance, GR, says scale (observable against actual size of universe) doesn't effect the likelihood of observing dynamical effects, then you could just say that and briefly summarise why. Simplyfying science is not a bad thing, not to be confused with dumbing down science. I am currently reading a book by Stephen Hawking. He has made a number of bets with Roger Penrose. They are both learned men, yet their bets tell me they have different views where some physics will go. Both their views are consistent with current science. Thats all I wanted to find out. Are my views consistent with current science-not necessarily correct. You are correct, I do need more background in math and physics. But this ignorance will not stop me thinking, and I learn what I can. So, I will not start a new thread. I either get the discussion Id like here, or I dont! But each point has to be answered or there is no point in discussion, even if its to inform me of its irrelevance. As I have said, I apologise for my tone. You can either accept my apology and give me the honour of discussing this subject. Or you have no wish to. If your last post was your way of saying you will not discuss anymore because of my lack of knowledge and/or tone that is fine. I would much rather that, then be talked around or ignored.

 

[Imax]

RichyRich:

Maybe this can help you:

http://arxiv.org/ftp/arxiv/papers/0908/0908.4067.pdf

 

[thetexan]

Rotating relative to what?

 

[RichyRich]

Thankyou very much Imax. A rotating universe is clearly not such a remote idea amongst physicists. My thoughts still linger to a rotation that is substantially different from rotations that occur WITHIN the universe. Am I correct in thinking phyicists believe 'we' should be bathed in magnetic monopoles, based on theory. The 'favourite' answer to this is the universe expanded to such a size these monopoles have been diluted out. We do not know what fraction of the universe we are sampling-observable to actual size of universe. Therefore, absence of evidence is not is not evidence of absence in monopoles or, I would suggest, in dynamical effects of universal rotation. So one of bcrowells earlier responses is invalid.
thetexan, I believe the universe rotates about/in what we would call another dimension. I am not alone in thinking there are other dimensions. Many physicists believe theory points in that direction. If there is something other than our universe, would anyone really expect 'us' to be static in relation to it?! bcrowell mentioned, when he was confident of an answer!, that GR says rotation can occur without reference to anything else, so that also could be an answer. bcrowell, however, only answered certain points, based on my attitude! I would have thought a more reasoned response to my 'attitude' would have been no response, not selective responses!
I would like to invite responses to the following thought. To me, it may be relevant to this thread and possibly to quantum theory. I really don't know, so would just like some comments about it in general...
Say you had a CD. This CD was a uniform colour, save for a blue dot at its outer edge. You are looking down onto the CD's flat surface whist it spins at an infinite speed. You put your finger on the outer edge to stop the CD rotating. Would you expect to stop the CD with your finger on the blue dot? What if the blue dot were actually suspended in a medium, say water, rotating in the same way. Wherever on the 'edge' of this water you put your finger in, would the blue dot be there? None of this is to make any point as such, just would like to see any comments. Thanks.

 

[bcrowell]

Rotating relative to what?

Rotation in GR is not relative, it's absolute. For example, if you're inside a sealed laboratory, you can watch the behavior of a gyroscope and determine whether the lab is rotating. This is one of the ways in which GR is non-Machian.

 

[RichyRich]

thetexan GR says rotation doesn't recquire extra dimensions, but doesn't rule them out.

 

[Imax]

The math could work out easier in 5D?

 

[Imax]

Baby steps. Instead of looking at a rotating universe, look at another question. Why do galaxies exist? Current cosmological models need Dark Matter and Dark Energy to explain why galaxies can form and don’t fall apart. Galaxies rotate and so could our Universe.

 

[bcrowell]

Baby steps. Instead of looking at a rotating universe, look at another question. Why do galaxies exist? Current cosmological models need Dark Matter and Dark Energy to explain why galaxies can form and don’t fall apart.

You don't need dark matter to explain why galaxies can form. You only need it to explain why they have the rotation curves they do. In a universe without dark matter, galaxies would still form, but they would have different sizes and rotation curves.

Dark *energy* has nothing to do with galactic structure.

Galaxies rotate and so could our Universe.

You haven't given any logical connection between your previous statements and this one. In any case, GR establishes that rotating cosmologies are possible, and observations set an upper limit on the rotation. See the references given in #13.

 

[Imax]

You don't need dark matter to explain why galaxies can form. You only need it to explain why they have the rotation curves they do. In a universe without dark matter, galaxies would still form, but they would have different sizes and rotation curves.

You need Dark Matter to explain why observed data does not fit with current theory. Without Dark Matter, galaxies could have different size and rotation (i.e. spin).

 

[bcrowell]

You need Dark Matter to explain why observed data does not fit with current theory. Without Dark Matter, galaxies could have different size and rotation (i.e. spin).

Agreed.

 

[RichyRich]

Whilst any observations are worthwhile, in this case they are useless. Would any dynammical effects observed from rotation prove the universe is rotating-no. It may be that the observable universe has some movement/rotation within the universe as a whole. Observation is irrelevant unless we know scale. The question was rotation of the whole universe, not observable universe. Another stumbling block for mr crowell to avoid.

 

[Imax]

So Dark Matter could cause the Universe to rotate?

 

[bcrowell]

So Dark Matter could cause the Universe to rotate?

Huh? Why do you say that?

 

[Imax]

Pulling your leg :)