You know the dimensions like first, second and third? But fourth dimension, from what I understood, it's 3D seen as 2D, am I right?
BUT I've heard about FIFTH dimension? What the hell is 5th dimension? Easiest way to explain?
The fourth dimension is time, my friend.
And the fifth dimension... Idk, maybe that's your description of the 4th dimension.
4th is time.
[editline]09:37AM[/editline]
Oh, and according to the string theory, there are a total of 11 dimensions!
This game, 4D thing, thread here about it... somewhere
[url]http://harmen.vanderwal.eu/hypercube/[/url]
Even if it's explained to you somehow your brain wouldn't be able to understand because we live and have always lived in three/four dimensions so we cannot comprehend a dimension which we do not experience.
[editline]04:37PM[/editline]
It's like trying to visualize infra-red as a color.
Dimensions aren't only the first three, they're the very blueprint of the universe if I remember correctly.
1D
Here is my interpretation of it:
If you think about a 1D space, everything is all on one line. An object in the 1st dimension would appear as a ling segment along the 'world' line. Now if we extend to 2 dimensions, we can think of it an infinite number of 1D dimensions placed side by side.
Objects in one 'slice' cannot interact with objects in a different 'slice' and therefore have no knowledge of these other 'universes'.
A 2d object moving in the 2D universe would appear to pop in and out of the different 1D dimensions. For example: a filled circle is moving though the 2d world, in one of the 1D dimensions it would appear as a tiny point materialising out of no where (seemingly) and grow, then begin the sink again and eventually disappear.
This is because only a 1D cross-section of the circle can exist in the 1D universe, and therefore as it moves it will show the entire circle in segments.
If we move to 3D we can image it as an infinite number of 2D planes all layered on each other. Once again Objects cannot interact with those in a different dimension. If a Sphere was to travel through the 3D space it would pass through all the 2D planes in turn.
To a 2D universe it would appear as a point materialising out of nowhere and growing to a full circle, then shrinking back to nothingness.
Extending to the forth dimension, we now have a 4D space with an infinite number of 3D spaces layered together. They cannot interact with each other.
If a 4D object travels through the 4D space, it would appear in the 3D universes as a 3D shape materialising, changing shape, and disappearing again.
In our universe you would think of time as the 4th dimension, where we are constantly moving through the 4th dimensional axis (at the speed of light apparently). Our 3d cross-section at time t, is how we appear at that time. This is also true for everything around us that moves through time.
/wall
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