Universe is finite or infinite?

[ajazali]

Re: Universe is finite or infinite?

@Theorist

See that is why you need to look up the shape torus. It will make sense how it could be expanding and still be finite and have a limit! Beyond the boundary is Cosmic background radiation which has been proven to exist. I just mentioned this in another thread. Weird. Beyond the cosmic radiation, it is possible that there are other universes. Here is a video on doughnut shaped universe:

http://youtu.be/tbruPR3o0Zc

Of course, this is one many theories proposed. I like this theory.

@Theorist

Nobody is claiming anything, scientist. These are theories human brain can entertain and predict using geometry.

FYI, I did not post a link showing the shape of the earth. Did you even click on it?

The observable universe is flat and seems infinite. We can’t really say that about the unobservable universe. There could be parts of the universe where the density of matter is high causing it to curve. We cannot detect that curvature because we can’t reach around the universe. A 3-torus universe is finite without a boundary. I was only trying to answer your question as to why and how this is even possible.

Who told you if our universe is flat it must be infinite? Universe can be flat and closed. It just doesn’t seem that way because we are trapped in a very small part of the expanding universe. Read up on Closed Manifold. It may clear your confusion about the difference between local and global geometry of the universe.

I am not claiming that the universe is finite with a boundary. I am just telling you of other theories that exist explaining different possible shapes of the universe.

I found a really good link actually: https://my.vanderbilt.edu/stacyfonstad/files/2011/10/ShapeOfSpace.pdf

Atleast accept what you have posted.
From what we know, universe is flat. Rest is your personal liking and disliking or assumptions.
a closed manifold is a type of topological space, namely a compact manifold without boundary. In earlier post you said beyond the boundary is cosmic background. you are considering abstract objects as concrete objects.
Well i know you will lose you temper instead of clarifying these things.

[Monk]

Re: Universe is finite or infinite?

dude i dont know what you are talking about to be honest. but the world being round wasnt some new concept revealed in the quran, if thats what you are saying. nor is drawing a circle such a novel idea.

maybe..
Plus it shows mathematics is our need to understand things after all.

plus. face is on the rooti, now you are explaining how it might have gotten there. :D

[Southie]

Re: Universe is finite or infinite?

I don't know if its finite or infinite but it's is still expanding. All the stars and galaxies are moving away from each other farther and farther - nothing is finite though - we just don't know when it will end

Did u mean "nothing is INfnite though"

Kindly proofread your submissions aayinda

[Pisiform]

Re: Universe is finite or infinite?

Did u mean "nothing is INfnite though"

Kindly proofread your submissions aayinda

i have better things to do than proof read. Proof reading is your job I guess

[Southie]

Re: Universe is finite or infinite?

Point taken, doc

[Theorist]

Re: Universe is finite or infinite?

Atleast accept what you have posted. From what we know, universe is flat. Rest is your personal liking and disliking or assumptions. a closed manifold is a type of topological space, namely a compact manifold without boundary. In earlier post you said beyond the boundary is cosmic background. you are considering abstract objects as concrete objects. Well i know you will lose you temper instead of clarifying these things.

Perhaps I should have rephrased that. The boundary isn't really a boundary when it comes to Torus universe. I should have said something like it must be that the CMR seems like the boundary but it is not really a boundary. I am trying to answer your questions but I don't know what in the world you are trying to do. Again, local universe being flat doesn't have much to do with its shape. It's flat as far as we know, we have theories about the unobservable universe. Since CMR seems evenly distributed, it's likely that the rest of it is also flat but you can't say if it's finite or infinite.

[Monk]

Re: Universe is finite or infinite?

Theo, queer, boss.. you thali ky beengans
When did that happen ?? when universe became finite ?

When stephen hawkings cone became Torus ??

I just read some of the post now, I was under the impression you all must be saying its infinite and expanding etc etc..

[Theorist]

Re: Universe is finite or infinite?

^see the links I posted. I am not arguing in favor of any theory. I am just intrigued by all of them. Certain conditions make some shapes possible while others impossible.

[TLK]

Re: Universe is finite or infinite?

Theo, queer, boss.. you thali ky beengans When did that happen ?? when universe became finite ?

When stephen hawkings cone became Torus ??

I just read some of the post now, I was under the impression you all must be saying its infinite and expanding etc etc..

Stephen Hawking's cone is the cone of light, i.e how a beam of light would move theough space and time. Its not the shape of universe.

And I think that universe is infinite. Where did you get this impression from, that I am saying otherwise?

[_Lahore_Ka_Cheetah]

Re: Universe is finite or infinite?

I'd say finite because apparently its still expanding and if its constantly getting bigger than what it was then its clearly finite (i.e. "it could be bigger" can be said, and then it expands again and becomes bigger).

But technically... its infinite. Take two points, 1 and 2. How many decimals can you put in between 1 and 2? The answer is infinite. For example, there is
1.1
1.11
1.111
1.1111
1.11111
..you get the picture. Its infinite.

[TLK]

Re: Universe is finite or infinite?

@_Lahore_Ka_Cheetah

I'd say finite ...

But technically... its infinite...

Yaar mind make up kar lo please, phir post kerna

[Gujranwalay]

Re: Universe is finite or infinite?

Prof Ahmed Rafique Akhtar explained it best..........his lecture available on youtube.....

[Monk]

Re: Universe is finite or infinite?

There is no such thing as infinity. In mathematics its a point where mathematician get annoyed.

[Southie]

Re: Universe is finite or infinite?

There is no such thing as infinity. In mathematics its a point where mathematician get annoyed.

I don't think anyone equates infinity with a point.

[Monk]

Re: Universe is finite or infinite?

I don't think anyone equates infinity with a point.

I just did.
Consider it the starting point.

[Southie]

Re: Universe is finite or infinite?

What is your point?

[TLK]

Re: Universe is finite or infinite?

**The infinite monkey theorem:
**

The infinite monkey theorem states that a monkey hitting keys at random on a typewriter keyboard for an infinite amount of time will almost surely type a given text, such as the complete works of William Shakespeare.

The infinite monk theorem:

@Monk

There is no such thing as infinity.

[Greek_Goddess]

Re: Universe is finite or infinite?

Interesting replies :) *Two possibilities exist: either the Universe is finite and has a size, or it’s infinite and goes on forever.. But i think *The universe is infinite :)

[rukhsaramjad]

Re: Universe is finite or infinite?

It very much clear that every religion says its followers that universe is finite and everything has to be finished so the Earth has also its lifespan as after that Earth has to be finished and after that everyone believes in the day of judgment.