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What is it expanding into?

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What is it expanding into?

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But even if the universe is finite, it is possible to make more space without having any "outside" space. A common analogy is to consider that it is possible to increase the surface area of a balloon by inflating it, without needing any additional balloons to facilitate the expansion. However, a balloon is a two-dimensional surface expanding into a three-dimensional space. There is not theorized to be a higher-dimensional space which three-dimensional space is expanding into; more of it simply appears as if by stretching.[7]

This finite universe theory supposes that the universe has no "edge", but wraps around on itself. If it were possible to travel the entire length of the universe without going faster than light, one would simply end up back in the same place, not unlike going all the way around the surface of the balloon (or a planet like the Earth).

The notion of "more space" is local, not global; we do not know how much space there is in total. The embedding diagram has been arbitrarily cut off a few billion years past the Earth and the quasar, but it could be extended indefinitely, even infinitely, provided we imagine it as curling into a "spiral of constant radius" rather than a circle. Even if the overall spatial extent is infinite we still say that space is expanding, because locally the characteristic distance between objects is increasing."

This is a quote from wikipedia.

http://en.wikipedia.org/wiki/Metric_expansion_of_space#What_is_the_universe_expanding_into.3F

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Yeah, but what does the balloon stretch into?

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http://en.wikipedia.org/wiki/Null_(computer_programming [Broken])

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Take any N dimensional space (line, for example, is 1 dimensional)Yeah, but what does the balloon stretch into?

Multiply all positions (and distances) by 10.

This is expansion.

Where did the line expanded into?

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No, line is 1D

Square is 2D

Space is 3D (do you visit iMax or something?)

Square is 2D

Space is 3D (do you visit iMax or something?)

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No dimensions is nothing, the first dimension is a point, information is the real 2nd dimension.No, line is 1D

Square is 2D

Space is 3D (do you visit iMax or something?)

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No dimensions is nothing, the first dimension is a point, information is the real 2nd dimension.

I would like for you to post to

Well a 0 dimension space usually means a single point. Imagine a point on an infinitely thin thread.

1 dimension has forward and backward motion/measurements. So using the above analogy it would be the entire infinitely thin thread.

2 dimensions includes sideways movement/measurements as well as forward and backwards

3 dimensions includes up and down. Which is what we live observing.

Regardless of if a line drawn onto a paper has 3 dimensions once you zoom in enough it is just a

The first 3 are spatial dimensions most people include time which is a temporal dimension. Some theories require many more dimensions than what we can't perceive. String theory for instance has about 10-11 dimensions. These are all spatial dimensions (I'm not sure if this is correct).

So the post by dmitry is correct. The definition of dimensions vary slighty between mathematics and physics but I'm sure for the purposes of this thread those differences are not required to be talked about.

EDIT: Had to change 'can perceive' to 'can't perceive' made a typo while trying to get this all typed out quick lol.

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The 3rd dimension has 3 dimensions true.Uh.

I would like for you to post toanypaper that states the second dimension is only information.

Well a 0 dimension space usually means a single point. Imagine a point on an infinitely thin thread.

1 dimension has forward and backward motion/measurements. So using the above analogy it would be the entire infinitely thin thread.

2 dimensions includes sideways movement/measurements as well as forward and backwards

3 dimensions includes up and down. Which is what we live observing.

Regardless of if a line drawn onto a paper has 3 dimensions once you zoom in enough it is just arepresentationof the 1st dimension.

The first 3 are spatial dimensions most people include time which is a temporal dimension. Some theories require many more dimensions than what we can perceive. String theory for instance has about 10-11 dimensions. These are all spatial dimensions (I'm not sure if this is correct).

So the post by dmitry is correct. The definition of dimensions vary slighty between mathematics and physics but I'm sure for the purposes of this thread those differences are not required to be talked about.

But you wouldn’t be able to see a square if it was infinitely thin.

A square is 3 dimensional.

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Drawings of these shapes areThe 3rd dimension has 3 dimensions true.

But you wouldn’t be able to see a square if it was infinitely thin.

A square is 3 dimensional.

Just as a drawing of a sqaure is an

A 3 Dimensional square is known as a cube or rectangular prism. So therefore if you don't think that squares are 2 dimensional then you don't think they

Just learn to accept that you will not always be correct about everything you try to argue about. Instead of continuing to try and spread misinformation just give up learn and move on.

Unless of course you have one of those papers which describes these dimensions that

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Any representation would be a fallacy.Drawings of these shapes areABSTRACT REPRESENTATIONS.

Just as a drawing of a sqaure is anABSTRACT REPRESENTATION.

A 3 Dimensional square is known as a cube or rectangular prism. So therefore if you don't think that squares are 2 dimensional then you don't think theyexistat all (on their own).

Just learn to accept that you will not always be correct about everything you try to argue about. Instead of continuing to try and spread misinformation just give up learn and move on.

Unless of course you have one of those papers which describes these dimensions thatyouspeak of. In which case you should just post a link because I'm certainly interested.

I’m not denying the 3rd dimension has 3 dimensions.

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Line is a mathematical concept, not a physical one.

It does not need to have any thickness to be 'visible'

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Please desist in posting misinformation. If you don't understand something, it's better to ask questions than make pronouncements.

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Do you understand what the term fallacy indicates? There is nothing wrong with using visual representations to depict 2D or 1D objects.Any representation would be a fallacy.

I’m not denying the 3rd dimension has 3 dimensions.

The

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“Straw Man Fallacy” - Isn’t that what you’re doing? Except in a massive group?Do you understand what the term fallacy indicates? There is nothing wrong with using visual representations to depict 2D or 1D objects.

Thefallacyhere is that you don't accept them as representations instead you seem to be stuck on the mindset that they are being passed of depicting exactly 2 dimensions or 1 dimension. Which isn't true. This is known as theStraw man fallacyand is quite common.

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No, because I'm the one defending the original position. You're the one that has taken that original position twisted it to something that you CALL the original position and you're arguing that it is wrong.“Straw Man Fallacy” - Isn’t that what you’re doing? Except in a massive group?

No this does not make the original position wrong, yes you should take a few math courses above grade 10 highschool and no IDC what the rest of the group states I'm just stating facts.

EDIT: As well it would be quite nice for me to point out that even in THIS post you are commiting the straw man fallacy. Hahahaha life goes on.

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A line is really a square if you think about it; a true line is the beginning and end of a point.

Does this really not make sense?

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Two dimensions - two numbers - x,y

Three dimensions - three numbers - x,y,z

How many numbers do you need to specify any arbitary position on a line?

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A 3D graph right? It’s all a fallacy.

Two dimensions - two numbers - x,y

Three dimensions - three numbers - x,y,z

How many numbers do you need to specify any arbitary position on a line?

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No. I think your point of view is more based on incorrect semantics than some fundamental misunderstanding of dimensions though. Just shift your dimensions one upwards and you're fine.A line is really a square if you think about it; a true line is the beginning and end of a point.

Does this really not make sense?

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No, a line is parametrised by one number. The fact that an object of n dimensions can exist in m dimensional space, for n<m, does not mean the n-dimensional object is somehow therefore m dimensions.A 3D graph right? It’s all a fallacy.

So a line is n=1, and in 3D space, m=3. So lines can exist in 3D space. But that doesn't make them 3D. You can have lines on a plane (2D space), or in any higher dimensional space. I could specify the equation for a line in 50-dimensional space, that doesn't make the line 50-dimensional, just that I need ... let me think.... 99 numbers to specify the orientation of the line (a 50-vector to the nearest point to origin, and a 49-vector specifying the direction along the line, which is 1 less dimension because it's normalised, and therefore lies on the S^(n-1) unit sphere.

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What is the width of the line that connects, say, center of Earth with center of Moon?

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