The Fifth Dimension...

[punk4ever]

Everything past the 4th dimension has been thought to be even below the subatomic level, so it would be impossible to perceive by just 'seeing' therefore it can only be theorized. Same thing with time, the 4th dimension, which cannot be seen but we perceive it to be 'there'. If anyone wants to learn more, check out the Kaluza/Klein theory. I think I spelled that right :P

[runesmithie]

Odd thought, but maybe we would understand atoms more if we could see in pure 3d? :P

[anonimu]

 

i believe string theory has up to 26 dimensions

 

 

 

 

 

 

 

string has 10 but M theory has an 11th. and the 11th is full of membranes floating around then when the membranes crash into each other they make a new universe (if they sepreate would that mean that the universe goes poof?)

 

 

 

 

 

 

^ 6th dimension objects in 2d space(i think)

 

 

 

http://www.pbs.org/wgbh/nova/elegant/program.html

 

 

 

 

 

 

 

Never heard of the string and m theory... I'll look it up on wikipedia...

 

 

 

 

 

 

 

If you think about it, if you live in a 2d world you can use the same reasoning as I did to prove that time is the next dimension... So maybe time isn't the 5th dimension, it's either the last one or the first one... It could be like the 0.5th dimension... So we live in a 3.5d world... and if there would be no time we would be living in a 3d world... But that would be impossible since nothing would ever change...

[punk4ever]

Odd thought, but maybe we would understand atoms more if we could see in pure 3d? :P

 

 

 

 

 

 

 

Of course that's when it would all start to piece together, but for now we're years away from that sort of technology (as far as I know).

[MadSpyder]

Interesting points. Got confused somewhere along the line but i think i've got most of the stuff mentioned.

 

 

 

Just a few questions related to time.

 

 

 

 

 

 

 

Do you notice how you can't 're-live' the past seconds? You can memorize it of course, but can you 'define' that very moment? That few time might feel like hours away, or is it just me being wierd?

 

 

 

 

 

 

 

And i also read somewhere that there was this idea that the Universe was destroyed and created at the same instance the whole time, so time might be the very essence of Universe.

 

 

 

I had some theories on that, but it's a bit late and i do need my beauty sleep after all.

[bjbj1991]

Odd thought, but maybe we would understand atoms more if we could see in pure 3d? :P

 

 

 

humans can see in 3d with one eye we only see in 2d and computers can easly think in 4d but i think there is no limmet on how many dimensions an array can have in a computer

[Lime_Mercury]

As for the multidimensional extensions and those of you that still don't get them, let me try to explain.

 

 

 

 

 

 

 

Imagine a point.

 

 

 

 

 

 

 

. (a point- no dimensions)

 

 

 

 

 

 

 

now select a point outside of that point.

 

 

 

 

 

 

 

(point 1).___________________. (point 2)

 

 

 

 

 

 

 

those determine a line, one dimension

 

 

 

 

 

 

 

now select a point outside of that line

 

 

 

 

 

 

 

point 1._____________________. point 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

point 3.

 

 

 

 

 

 

 

those determine a plane, two dimensions

 

 

 

 

 

 

 

 

 

 

 

select a point outside the plane, and you have a 3 dimensional object.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

now the hard part is taking a point outside a 3 dimensional space, which is where time comes in.

 

 

 

 

 

 

 

in the sense that a line is flat compared to all the lines that would make up a plane, a "snapshot" of time is flat compared to all the snapshots that make up a hyperobject (a 4-dimensional object).

[homer806]

correct me if i'm wrong, but is it not impossible to physicaly represent the first or second deminsions sense everything has a width, length, and depth? And for that matter, you can't even represent the 3rd deminsion unless you can stop time.

 

 

 

just a thought

[bjbj1991]

correct me if i'm wrong, but is it not impossible to physicaly represent the first or second deminsions sense everything has a width, length, and depth? And for that matter, you can't even represent the 3rd deminsion unless you can stop time.

 

 

 

just a thought

 

 

 

yes

[homer806]

so, there is only one real deminsion and many other theoretical deminsions. Unless you can prove the existence of the others by stopping time or discovering an alternate universe.

[runesmithie]

 

Odd thought, but maybe we would understand atoms more if we could see in pure 3d? :P

 

 

 

humans can see in 3d with one eye we only see in 2d and computers can easly think in 4d but i think there is no limmet on how many dimensions an array can have in a computer

 

 

 

 

 

 

 

Humans can see in pseudo-3d... not true 3d

 

 

 

If we could see 3d with one eye then we could see pseudo-4d (treating it as a spatial dimension)

 

 

 

Although I'm really not sure if you were proving or disproving what I said? :? You should word it better next time

[Phyllarski]

Heard something interesting when I studied physics

 

 

 

We can percieve 2d objects in a 1d field (i.e. we can make a shape out of lines)

 

 

 

we can see 3d objects in a 2d field. (i.e. we can draw cubes on a flat piece of paper)

 

 

 

Now if us humans see the world as 3d, that means we can theoretically percieve the 4th dimesion, which if presumed to be time, that is true, we humans can percieve time.

 

 

 

Hence in order to understand a 5th dimension, we might have to view the world in a 4 dimensional field, which we do not do, or have no way of representing.

[Scruffy5389]

so, there is only one real deminsion and many other theoretical deminsions. Unless you can prove the existence of the others by stopping time or discovering an alternate universe.

 

 

 

 

 

 

 

When someone says "we live in the 4th dimension," that means we live in all of the four dimensions, length, width, depth, and time. I think.

[Cloaked_Shadow]

I'm reading a book right now called "the universe next door". It says that theorists are saying that the fifth dimension is incredibly tiny: smaller than atoms. The book says that some radical scientists are saying that the fifth dimension consist of small loops of...uh, time. Time strands bent back on eacother to create knots smaller than an atom...the concept is really strange and i dont understand it very well. Ill try to explain when i find out myself...

[bjbj1991]

I'm reading a book right now called "the universe next door". It says that theorists are saying that the fifth dimension is incredibly tiny: smaller than atoms. The book says that some radical scientists are saying that the fifth dimension consist of small loops of...uh, time. Time strands bent back on eacother to create knots smaller than an atom...the concept is really strange and i dont understand it very well. Ill try to explain when i find out myself...

 

 

 

that sounds like string theory

[assassin_696]

 

I'm reading a book right now called "the universe next door". It says that theorists are saying that the fifth dimension is incredibly tiny: smaller than atoms. The book says that some radical scientists are saying that the fifth dimension consist of small loops of...uh, time. Time strands bent back on eacother to create knots smaller than an atom...the concept is really strange and i dont understand it very well. Ill try to explain when i find out myself...

 

 

 

that sounds like string theory

 

 

 

 

 

 

 

Indeed it is, string theory allows for about 20 dimensions, but we cannot experience or see them because we could not live in a universe if the other dimensions aside from the four we know are flat, because the conditions would not be right and atoms would self-destruct.

 

 

 

 

 

 

 

Space is time because space and time are interconnected, time is not continous and unchanging, it varies in different gravitational fields.

 

 

 

 

 

 

 

According to general relativity we could never reach the speed of light, since as we approach is we would need more and more energy, and since we have mass according to e=mc^2 the amount of energy is infinite, which is an impossible irregularity for us in an expanding universe. If we could however, we could facilitate time travel, but the only way of really doing this would be through wormholes, which are only possible with the negative energy density that quantum mechanics talks about. According to relativity it's not possible but now we know that quantum mechanics could allow this as long as there was an overall positive energy density.

 

 

 

 

 

 

 

[/incoherrant ramble]

 

 

 

 

 

 

 

Alright, here's my lil explanation:

 

 

 

The way I think of it is like this: picture a cylinder. It has length, width and depth (3 dimensions). If you take a cross section, you now just have length and width. These two dimensions are frozen somewhere in the third.

 

 

 

 

 

 

 

Going up a level... Put that cylinder in your basement for a week. Now it is a three dimensional object moving along through time. If you look at it for one instant alone, it only has the standard three dimensions. But those three dimensions have a place somewhere within the week. That one instant is like a cross section of time.

 

 

 

 

 

 

 

Given that little analogy type thingy, time is the fourth dimension.

 

 

 

 

 

 

 

 

 

 

The slight problem with this is that there is no such thing as an absolute time, so the point at which it is frozen cannot be defined with a given value that everyone can accept. Sorry it's a naggling little point that is probably irrelevant to your good explanation, but i just thought i could bring some Einstein in

 

 

 

 

 

 

 

Interesting stuff really, i wish i'd seen this topic earlier. :P

[Scruffy5389]

 

]Alright, here's my lil explanation:

 

 

 

The way I think of it is like this: picture a cylinder. It has length, width and depth (3 dimensions). If you take a cross section, you now just have length and width. These two dimensions are frozen somewhere in the third.

 

 

 

 

 

 

 

Going up a level... Put that cylinder in your basement for a week. Now it is a three dimensional object moving along through time. If you look at it for one instant alone, it only has the standard three dimensions. But those three dimensions have a place somewhere within the week. That one instant is like a cross section of time.

 

 

 

 

 

 

 

Given that little analogy type thingy, time is the fourth dimension.

 

 

 

 

 

 

 

 

 

 

The slight problem with this is that there is no such thing as an absolute time, so the point at which it is frozen cannot be defined with a given value that everyone can accept. Sorry it's a naggling little point that is probably irrelevant to your good explanation, but i just thought i could bring some Einstein in

 

 

 

 

 

 

 

Interesting stuff really, i wish i'd seen this topic earlier. :P

 

 

 

 

 

 

 

Yeah, I've decided that I don't understand Einstein. I got into special relativity and got to here:

 

 

 

 

 

 

 

Picture big empty space. At some given point, there is a flash of light. The light travels outwards at the speed of light. You can visualize it as an expanding sphere.

 

 

 

 

 

 

 

You are at the point that emits the light. It flashes, and you are now at the center of an expanding sphere of light. The point and you are at the center. Now start moving in any direction at half the speed of light, away from the point. Because the speed of light is always constant, you will remain at the center of the expanding sphere of light. So will the point. You and the point are moving apart at half the speed of light, and you are both at the center of the same sphere of light.

 

 

 

 

 

 

 

...and the universe as we know it is all shot to hell :lol:

 

 

 

 

 

 

 

Maybe I'll put in the effort and understand it later, but for now I'm comfortable with my four-dimensional universe :lol:

[bum_co]

Well as we all know time is the 4th dimension... One way to prove that is this:

 

 

 

 

 

 

 

Two different points form a line.

 

 

 

Two different lines form a plane.

 

 

 

Two different planes form space.

 

 

 

Therefore two different spaces form something... But there's only one space... So two different spaces must form time...

 

 

 

 

 

 

 

But what's the fifth dimension? Two different time-lines form two different alternate universes... But they're only supposed to form one thing... What is the fifth dimension? Why did I just wake up and think about this? Why don't I eat breakfast? What's Nairb168's tip.it username? What is the fifth dimension????????????????

 

 

 

 

 

 

 

i have a book on time travle and the different posabliltys, it expains the dimmensions very well, i think its titled "Time travle in Einstienes Universe" or something like that, and they are not even sure their are other dimmensions, you guys seem to be talking like there are for sure, although we will know by 2007-2010 because in some country (i forget where not us, bnritten, russia or anywhere like that) they are building a machine to send protons at each other a near the speed of lite (186miles per second) whitch if other dimmensions exist will tear through space or something like that (see popular science most recent issue)

[Adolpha]

i think the most widely accepted version of the string theory allows 11 dimensions

 

 

 

 

 

 

 

but string theory is just a mathematical formula, there is really no proof to what the dimensions are and how they really look like if they did exist. i think string theory is only accepted because there is so much mathematical beauty in it that it must be true to some extent. and if you can get the equations to match up using different types of variables, i think there are actually an infinite numbers of dimensions to be found using string theory.

 

 

 

 

 

 

 

hmmm....if string theory is true (which i personally doubt), would it even be possible to visualize all the dimensions? i think they would just exist, but as human beings, we would never have the capability to tell what they look like. i mean, if you have never seen something, how could u tell what it looks like? its like trying to find a color that is off the visible spectrum.

 

 

 

 

 

 

 

back to the 4th dimension though, i understand using a 4th variable to define time would give you another dimension in that sense. but i dont understand how you could jump from space to time...how can 2 overlapping spaces form time? lak;jdflkadsjf;laksdjf?? :?

[willyhenriksen]

Well as we all know time is the 4th dimension... One way to prove that is this:

 

 

 

 

 

 

 

Two different points form a line.

 

 

 

Two different lines form a plane.

 

 

 

Two different planes form space.

 

 

 

Therefore two different spaces form something... But there's only one space... So two different spaces must form time...

 

 

 

 

 

 

 

But what's the fifth dimension? Two different time-lines form two different alternate universes... But they're only supposed to form one thing... What is the fifth dimension? Why did I just wake up and think about this? Why don't I eat breakfast? What's Nairb168's tip.it username? What is the fifth dimension????????????????

 

 

 

 

 

 

 

these are questions who never will be answered.

[assassin_696]

i think the most widely accepted version of the string theory allows 11 dimensions

 

 

 

 

 

 

 

but string theory is just a mathematical formula, there is really no proof to what the dimensions are and how they really look like if they did exist. i think string theory is only accepted because there is so much mathematical beauty in it that it must be true to some extent. and if you can get the equations to match up using different types of variables, i think there are actually an infinite numbers of dimensions to be found using string theory.

 

 

 

 

 

 

 

hmmm....if string theory is true (which i personally doubt), would it even be possible to visualize all the dimensions? i think they would just exist, but as human beings, we would never have the capability to tell what they look like. i mean, if you have never seen something, how could u tell what it looks like? its like trying to find a color that is off the visible spectrum.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wondering about why we can't see the extra dimensions is like living in a rich area and wondering why you don't see any poor people.