Talk:Fifth dimension

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[edit] Move to "Five-dimensional space"?

This article seems to be written from the perspective that there's a preferred coordinate system (starting with "up/down, left/right and forwards/backwards"), with respect to which a fifth dimension might be identified. This is certainly not the favored approach of contemporary geometers. I suggest a move to Five-dimensional space and a corresponding overhaul of the article. --Trovatore 18:43, 16 November 2005 (UTC)

Also, could someone clean up the grammar a bit in the first part? --J

[edit] Volume?

This article contains a formula to find out the volume of a 5 dimensional circle. Surely volume is not the correct word to describe the amount of space contained inside this 5d shape - just like area does not describe the amount of space inside a 3d object. Volume is measured in m3, which only describes 3 dimensions, the 5d objects amount of internal space would be measured in m5. —Preceding unsigned comment added by 86.134.9.179 (talk • contribs) 09:01, 17 June 2006

The generic term is content. Will fix. —Tamfang 17:45, 17 June 2006 (UTC)

[edit] Time as one of the 5 dimensions?

This article talks about the 5th dimension as an additional spatial dimension beyond the 4th, which it identifies as time. First of all, I don't think time can be regarded as a spatial dimension (at least, I doubt such an assumption is commonly accepted). Second of all, if the 5th dimension is merely another spatial one and non-temporal, then it is exactly like what the Fourth dimension article is talking about (4 spatial dimensions, potentially with one additional temporal one), except that the dimensions are labelled differently. In which case, I'm not sure I see the justification for a separate article. On the other hand, this article appears to be focusing on the geometry of 5 spatial dimensions, as it refers to 5D polytopes, and so it should not confuse the issue by labelling one of the dimensions as time. Besides, 4D space-time as defined by General Relativity is Minkowskian, not Euclidean, and as far as we know, the universe is by no means Euclidean with or without additional dimensions, so the discussion of polytopes doesn't really work in that context. I think this article should focus on 5D Euclidean space, and not try to rationalize it in terms of space-time.—Tetracube 00:36, 2 November 2006 (UTC)

both space and time are the 4th dimension, known as the spacetime dimension —Preceding unsigned comment added by 24.189.153.102 (talk) 13:10, 8 June 2008 (UTC)

[edit] Selector as the 5th dimension

As discussed in theory on the 4th dimension, time or speed is accepted as the 4th dimension. We have length, depth and height as the three other dimensions. So what is the 5th dimension? Is it a selector of the property of the 4th dimension? Lets just play with the thought and say that a value of 1 in the 5th dimension represents the property of time in a certain point in the 4th dimensional space, therefore the given value in the 4th dimension represents the time at which the 3rd dimensional image is given. This would mean that the image is moving according to the value in the 4th dimension.

The thing is that the value in the 5th dimension points to every possible version of the 4th dimension. The 5th dimensions give the 4th dimension all possible properties of the physical universe, probably also the abstract universe. In the 4th dimension we observe time when the value of the 5th dimension is 1. When the 5th dimension value is 2 it can represent atomic mass. Value 3 can represent taste. The value N represents all properties given in the relative universe of this specific case.

The full aspect of the 5th dimension is unthinkable to us, other than from a mathimatical point of view, as pain is for a rock.

  • Daniel Holth, Norway 2nd November *

(Grammar edited by Dennis Standing)

[edit] 10th dimension link

I think the link to "Imagining 10th dimension" should be removed, since it's mostly science fiction and nothing to do with current scientific concensus. —The preceding unsigned comment was added by 80.222.116.225 (talk) 12:39, 23 December 2006 (UTC).

  • Seconded. \Mike(z) 17:40, 5 January 2007 (UTC)

[edit] mistake

I myself, studying dimensional theories, must disagree with the hypercube theory. Though it present an exceptional understanding of the dimensional pattern which my work is highly dependant on. It forgets that a line, one dimensional, extends infinitley. The square does NOT define two dimensional space. A parallelogram is the correct symbol. The parallelogram represents a plane once again extending infinitely. The cube, I will except as the symbol for three dimensional due to lack of excepted geometric symbol. The cube you must remember, as a representation of three dimensional, extends infinitely in all directions. Due to that fact the point, the line, the plane, and the cube are all co-cubular (lack of better word once again) so the hyper cube etc. are also co-cubular and not a shape exceeding the third dimension.


p.s. sorry for poor wording but mathmaticians have not yet had reason to define one where my words lack.

p.s.s. The person who orginated this theory was Intelligent and deserves credit. His theory is perfect in all ways except using a line segment in the stead of a line.

--Leon vautour 23:42, 6 January 2007 (UTC)Leon X Vautour

[edit] confusion

From the article: "Whether or not the real universe in which we live is somehow five-dimensional is a topic that is debated"

Isn't the 5th dimension sound?
Imagine:

  1. a line
  2. a plane
  3. a shape
  4. a shape rotating/moving through space
  5. a shape rotating/moving through space and speaking.... ? (e.g., a holographic talkie, or a memory projection)

Which would make the 6th dimension "energy" transferred from one shape to another... ? --Renice 13:34, 24 March 2007 (UTC)

Btw, this would also mean that Jedi knights are able to think in the 7th dimension -- the ability to force a 6th dimensional object to exert energy through suggestion. --Renice 14:20, 24 March 2007 (UTC)

This would also suggest that astroplaning may be a form of 7th dimensional thought. --Renice 14:42, 24 March 2007 (UTC)

[edit] The Hypercube...

The fifth dimesnion is described by some scientists as the 3rd dimension wrapping around itself. Look closely at the net of the hypercube and the resultant hypercube. The net is obviously 3-dimensional, unlike normal geometrical nets. In order to form the hypercube, the net appears to wrap around itself, joining the opposite ends of the net together, providing a visual representation of the 5th dimension. —The preceding unsigned comment was added by 64.149.188.82 (talk) 01:13, 10 May 2007 (UTC).

[edit] There is no 5th dimension

As far as spatial and temporal dimensions are concerned, the four are length, breadth, height, and time. The myth that there is a 5th seems to stem from the 60s pop group. I read here about some silly suggestion that the Star Wars 'Force' could be a dimension. That is not related to time (it does not interfere with it) or space (there are still 3 dimensions). These four dimensions can't be interfered with in any way in the real world, and they are all, by definition, infinite. Therefore, there is no 5th dimension. Gravity does not interfere with these dimensions, and it varies on location [the moon has less of a pull]. The physics view of a 5th dimension is complete myth.

In geometry, there are only 3 dimensions, except in the real world where the 4th may manipulate the other 3. The other 'dimensions' are just combinations of 2 of the 3 dimensions.

The article's neutral stance is unjustified because it has been acknowledged almost universally by the scientific community that there are only 4 dimensions.

4th dimension is spacetime, so it does exist and is its own dimension, the 5th dimension theory could be possible, as there may be infinite dimensions. ex: 1st dimension a line 2nd dimension a line squared= a square 3rd dimension a square squared=cube 4th dimension cube squared= tesseract. possibility of a penatract. each dimension shows a side: the 1st is a line, so no sides, 2nd is a square showing 1 side, 3rd is a cube showing a full 6 sided view. 4th is spacetime and a tessaract showing many sides i havent counted yet. but the possibility of something past spacetime is low. there so far is a magnetic pole, a cosmic string, a domain wall, something about the 3rd dimension, and a spacetime tesseract. if there is a 5th dimension, it is impossible to find out what it is, except for the fact that it is a penatract24.189.153.102 (talk) 13:26, 8 June 2008 (UTC)

[edit] Describing five dimensions with mathematical equations

this section uses stuff like "we" and "lets" and "(you) think" that makes it kind of personal and should be fixedSoyseñorsnibbles 01:52, 28 September 2007 (UTC)

[edit] Smallville

Has a fifth dimension ever been actually mentioned in Smallville (TV series); can you name the episode? If not, I think it should not be listed here, even if some people speculate on the Mxyzptlk connection. 213.216.199.6 (talk) 13:15, 5 January 2008 (UTC)

[edit] The 5th dimension in Biology

Kodjo and Togbey, (2000?), proposed that 4/5 is the exponent that represents allometric scaling of the brain. They reasoned that 5 is the natural extension of 1/2, 2/3, and 3/4 exponential (fractal) scaling laws of tissues. Since they found a close 4/5 scaling factor for neurons, and 5 is the denominator of that, they reasoned that the 5th dimension is that of thought. [Note: allometric scaling is non-linear variation of morphology based on mass or size, or other measurement of an organism or organ.] http://www.unomaha.edu/wwwmath/OurArchive/KerriganMinigrants/2006_2007/KodjoTogbeyReport.pdf for details. 74.195.25.78 (talk) 01:10, 8 January 2008 (UTC)

[edit] Five-dimensional equations

Any equation or set of equation whose exponents sum to 5 may be said to be 5-dimensional. Of course there are some sets of equations found in chemistry and mechanical engineering books that extend to 20 dimensions. Also, if E=mc^2 is correct, and c is not necessarily constant, then Energy (not the relationship between energy and what else) is five-dimensional. [c^2 would equal distance^2 / time^2; 2+2 = 4 (dimensions)] 74.195.25.78 (talk) 01:19, 8 January 2008 (UTC)