What is 4D

What is the fourth dimenson or does it even exist

Four-dimensional space - Wikipedia, the free encyclopedia

EDIT: from what's in the wikipedia page, i think the third dimension is 3 because we have horizontal, vertical, and depth to find a specific point. 2d is 2 because there is only horizontal and vertical. with the fourth dimension...there's a fourth but i haven't quite grasped that concept yet.

also, by looking at the math, it makes sense, but in a real life situation it's a little more confusing without the CG graphic

Edited by purplerhino, 15 July 2012 - 03:06 AM.

plasma is the 4th dimension

plasma is the 4th dimension

Plasma is a state of matter....as in solid liquid gas. It's the fourth in that sense....not the fourth dimension...

Time

Plasma is a state of matter....as in solid liquid gas. It's the fourth in that sense....not the fourth dimension...

im no physcists but that is what i was taught in college physics in the 90s

im no physcists but that is what i was taught in college physics in the 90s

In physics and chemistry, plasma is a state of matter similar to gas in which a certain portion of the particles are ionized. Heating a gas may ionize its molecules or atoms (reduce or increase the number of electrons in them), thus turning it into a plasma, which contains charged particles: positive ions and negative electrons or ions.[1] Ionization can be induced by other means, such as strong electromagnetic field applied with a laser or microwave generator, and is accompanied by the dissociation of molecular bonds, if present

^Wikipedia

http://www.nasa.gov/...hases_large.jpg

http://scienceprojec...atter-chart.jpg

im no physcists but that is what i was taught in college physics in the 90s

Your teacher was incredibly stupid then, as this was never ever thought to be the case - even in the 90s.

It's almost impossible to know exactly what the fourth dimension is, it's like trying to describe a new primary color that somebody found in the universe. I think of it a like a 3d object in a 2d world, you would only see a 2d profile of it, same thing with a 4d object in a 3d world, we would only see a 3d profile of it , because we can't physically picture a 4d object (like trying to think of a new color, you can't) so there can be thousands of 4d objects in our world that we only see as 3d profiles. Phew sorry if that was drawn out

yes...it is time...

here, I'll demonstrate time for you;
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see, that took a bit of time to scroll down, yes it was wasted time, but still was a valid demonstration of time in action..:wave:

It's not time
Let carl sagan tell you about it
[ame=http://www.youtube.com/watch?v=UnURElCzGc0]Cosmos - Carl Sagan - 4th Dimension - YouTube[/ame]

That dude must feel like a Boss talking about the 4th dimension in his perfectly cute little setup office with black background.

Your teacher was incredibly stupid then, as this was never ever thought to be the case - even in the 90s.

no i m not thinking straight....i was taught, liquid, solid, gas, plasma....i was confused as the dimension thing.....i think carl sagan knows more than me

no i m not thinking straight....i was taught, liquid, solid, gas, plasma....i was confused as the dimension thing.....i think carl sagan knows more than me

Exactly xD, that's what I thought. Those aren't dimensions heh.

Well technically speaking liquid,soilid,gas, plasma are dimensional matter, but they are not 4d or 4d matter for that matter

In mathematics, four-dimensional space is an abstract concept derived by generalizing the rules of three-dimensional space.

There are different discipline definitions for four-dimensional space.

In Algebra, its generated by applying the rules of vectors and coordinate geometry to space with four-dimensions.

In Physics, space and time are unified in a four-dimensional "Minkowski" continuum called spacetime, whose metric treats the time dimension differently than the three spatial dimensions.

Thus, spacetime is not a Euclidean space. Minkowski spacetime is the mathematical setting in which Einstein's theory of special relativity is most conveniently formulated.

In layman terms, three ordinary dimensions of space are combined with a single dimension of time to make a four-dimensional manifold for expressing spacetime.

Hope this helps clear any confusions. All the Best~

Minkowski space is 4 dimensional.

ds^2 = c^2*dt^2 - dx^2 - dy^2 - dz^2, bitches. Oh, and c = 1.

You guys are really confused. The dimensions are human-made. You can define whatever dimension however you want. It is simple a tool to represent the coordinates of a certain object in space.
Man has found that 3 dimensions give an accurate and friendly representation of space. Heck, you can even represent an object's coordinates by using 1 dimension only, in other words, we live in 1 dimensional (curvy) universe.

4th dimension could be time if you want it to, or it could be a dimension we cannot comprehend. Remember that these are all theories and you can manipulate them as you wish, there are many uses for dimensions, but it is globally accepted that the first 3 dimensions are x, y and z and that the fourth dimension is (generally) time.

Manipulation lead to Mathematicians finding a way to fill both 2d and 3d space with a 1d space filling curve.

There is nice ways and there are utter dickhead ways to say things^^^^^^

So who are you airwavez to label others as confused? After all, your behind a computer screen hiding behind a screen name blabbing whatever comes to your noodle like you got a license to judge whomever.

Its better to remain silent and be assumed the fool, then to open your frontal fuck hole and remove all doubt. Maybe next time you will learn to be nice to others Airwavez?????

Edited by SkunkManSam420, 21 July 2012 - 10:55 PM.

4D is when the movie theater is set up with effects you can feel (fans that blow when there is wind in the movie, sprinklers when there is rain, fire when there is fire).

4D is when the movie theater is set up with effects you can feel (fans that blow when there is wind in the movie, sprinklers when there is rain, fire when there is fire).

I lold xD