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for comparison, lets think like thisOn a paper, draw X and Y coordinates, then put A on 0,0 and draw a line to B 10,10lets see, if A try to reach B, the distance is square root(((10-0) * (10-0)) + ((10-0) * (10-0)))which is square root(20) or 4.47But as we know that, this 2 dimension things can be imagine, because it is inside a 3 dimension! That's why we forget that the piece of paper th... read more.
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Most people consider the 4th dimension to be time or change, as this is another way to measure something. For example, a book could be 21cm wide, 30cm high, 6cm deep and 6 months old. 4 measurements, 4 dimensions. Some people then derive a theory that we can resize things along the x, y and z axis, so why not along time, so theories of time travel are then linked in.
There are also theories of a 5th dimension, but this gets incredibly complicated and confusing, and there are still a lot of people that believe we couldn't get as far as a 5th dimension.
I've heard a bit about the fourth dimension in my Math Applications class. I haven't heard much of course because there isn't much on it, you see. I saw how they were using computer data and binary coding to make the hypercubes and I even tried my hand at trying to create a hyper cube, (not pretty,) but I never actually heard the full method to creating one. The fourth dimension- sounds like something you would hear about in a science fiction movie doesn't it? I think that if we could access this rare and hard to find dimension, that we could open up a whole new method of seeing things and we might be able to access better technologies. What do you think could be helped by this discovery? I truely am not sure.
I agree with the time thing. I dont think there can be another physicall dimension on an object, unless its because we probably cant see it, and if we could I suppose everything would be different than how we used to see it. Maybe it could be something relatively equal to the shadow of things. Like we can see the object has a shadow but when we touch it, we cant. Aaaa, Im confused already.
And yes , the fouth dimension has to be time. For those that know about einstien's special relativity theory, time isn't constant, so we can consister it as a dimension. Imagine if you were to live in a 1 dimension world, you might not be able to see anything (other 1 dimension creature) or move around freely, you will stuck in one place forever. In a 2 dimensional world, all you can see are lines and you can only move up, down, left, right. Those are the only direction a two dimensional creature can move. Next comes the 3 dimensional work, this time, you don't need to imagine because you could already see 3 dimensional objects now and can move freely everywhere you want. In all 3 worlds (1, 2, and 3 dimensional worlds), you won't be able to do much since time is not one of the varible. Time describe movement of objects, since there is no time, creatures that live in a 1,2, and 3 dimensional world cannot move or possibbly exist since they cannot think or do anything. The fourth dimension world is what we are living in right now. As i'm typing my thoughts right now, you can probably guess that i have to move my fingers inorder to type. This shows that time does exist in our world and therefore we are living in a 4 dimensional world. LOL... i hope what i just typed is coherent.
I guess 4 D is the next step after 3 D. LOL It all sounds very interesting. I like to think that there could be further dimentions that we can not see. It just makes some of the crazy things that we imagine all the more possible.
the fourth dimension, according to einstein i think.. is time
it's kinda weird, because we can't see time, but we can see 3D things..
There are two theories for the fourth dimension, as I understand it:
1) A Spatial dimension. Which is the theory relevant to your example of a hypercube. I don't believe this as much as I do the other theory, because I don't see the hypercube! I've seen pictures of it, I mean, but I don't understand how it is more than three dimensional. This is probably because It's presented to me in a 2dimensional format: on a piece of paper. But because I haven't taken the time to figure it out and haven't seen it as of yet, I don't imagine the fourth dimension as being spatial. 2) A non-spatial dimension: Time. Einstein, and others, have considered the fourth dimension to be time, as in change. When talking about graphs, or planes, with this dimension I picture it as more than one graph. The X, Y, and Z spatial dimensions are easily depicted on a graph, but when you change time the graph grows or decays in some way, thus turning into a new graph. so yes... =p A good example for why I think that (multiple graphs - time as fourth) is an example that was given in a discussion on these forums. Suppose we lived in a 2 dimensional world. Now, suppose we add a third dimension into our two dimensional world. As we go up the newly added z-axis, we have a new world in it of itself. When talking about the fourth dimension, I imagine a new graph for every spot on its axis. Not sure how correct this is, but it's how I imagine it.
Think of it this way.... we see a point. That's the first demension. It's not actually 1D, it's just a symbolic representation that we would use on a map for example. Now, what ways are there to duplicate that point on the same area? Another point right? Now we have 2 points, on the same area... 2 demensional! 2 Axis now exist. Now, lets think... What ways are there to have another point, on top of the original point? Add another axis! Now we have 3 axii, and they would have overlapped if it was 2D or 1D. Now, how can we have the point overlap in a 3D axis? We can't add another axis.... that's impossible! But we can duplicate the axis. Imagine a cube with a point in it. How can we have the point in the exact location of the cube, but not actually overlapping? That's the concept of the 4th demension... time! Using different time, we are able to have 2 points in the same space, without overlapping each other.
Imagine the transparent cube with a point in it. Suddenly that point disappears. 1 minute later, another point replaces it. We have achieved having 2 points in the same space without overlapping each other by having them there in different times. That's the same as having 2 points in a cube, one closer and one farther, but having the same distance to the 4 edges. While they don't overlap, they are the in the same y and x coordinates. But what changes it, is the z coordinate, which allows 2 points to have the same space, in a different dimension. The 5th demension? Think this: How can we have 2 points, in the same space, and same time? Alas, that is currently not possible, unless the 5th dimension compromises the concept of overlapping... QUOTE(Dooga @ May 31 2006, 08:06 PM)  Think of it this way.... we see a point. That's the first demension. It's not actually 1D, it's just a symbolic representation that we would use on a map for example. Now, what ways are there to duplicate that point on the same area? Another point right? Now we have 2 points, on the same area... 2 demensional! 2 Axis now exist. Now, lets think... What ways are there to have another point, on top of the original point? Add another axis! Now we have 3 axii, and they would have overlapped if it was 2D or 1D. Now, how can we have the point overlap in a 3D axis? We can't add another axis.... that's impossible! But we can duplicate the axis. Imagine a cube with a point in it. How can we have the point in the exact location of the cube, but not actually overlapping? That's the concept of the 4th demension... time! Using different time, we are able to have 2 points in the same space, without overlapping each other. Imagine the transparent cube with a point in it. Suddenly that point disappears. 1 minute later, another point replaces it. We have achieved having 2 points in the same space without overlapping each other by having them there in different times. That's the same as having 2 points in a cube, one closer and one farther, but having the same distance to the 4 edges. While they don't overlap, they are the in the same y and x coordinates. But what changes it, is the z coordinate, which allows 2 points to have the same space, in a different dimension. The 5th demension? Think this: How can we have 2 points, in the same space, and same time? Alas, that is currently not possible, unless the 5th dimension compromises the concept of overlapping... i don't feel the fourth demension has to do with time. i feel that has to do with the fifth and time travel is only a means to reach the fifth demension. the fouth i believe has to do with location and something that isn't solid matter. while the fifth has to do with location and time. all demensions incorporate all other demensions and you can't reach 1 demension without going through all others before it it's true we don't use the majority of the resources our mind has to offer. in fact we use very little and believe it's our mind that is the tool to reach the 4th and 5th demensions. i believe the fourth has to do with being in two locations at once. one location being contstant, the other location NOT constant in and at the same time. the third is what we live in. it allows us to be in one location only that is not constant. i'm getting confused now haha whatever.... Latest Entries
for comparison, lets think like this
On a paper, draw X and Y coordinates, then put A on 0,0 and draw a line to B 10,10 lets see, if A try to reach B, the distance is square root(((10-0) * (10-0)) + ((10-0) * (10-0))) which is square root(20) or 4.47 But as we know that, this 2 dimension things can be imagine, because it is inside a 3 dimension! That's why we forget that the piece of paper that we used to draw A and B is in fact a 3D object. That's why, we can actually clamp or warp this paper so that A and B can be met in one point so the distance is 0. By this assumption, we are just like A and B, if we were them, we will need to travel from A to B using the coordinates defined, which is 0,0 1,1 2,2 and etc until 10,10. There is not other closest path. But if we used another dimension which is Z, we can just warp this paper so A and B is met without having to travel any bit of distance. So, if we are 3D objects in this current world, then if the fourth dimension is exist, that means that we may not know 'other shortcut path' from my place to liberty statue, maybe what I know is from drawing a line from my place to liberty statue on a map, and fly according to this distance. But what if another entity exist in fourth dimension, which just like we 3D things compare to A and B (2D things)? If they exist, they might know that we can go to liberty using the t coordinate which is believed to be time. So the Einstein states that if something can travel faster than light, so they could go to warp in our 3D space to another space! Which the key is the light, you know why? In spiritual view, light is a matter that comes from love, to love is to light, such as enlighten in Buddhism. If we love than we can defeat time, that's why true love is beyond time limit.
To add to what Lightning73 so rightly said above (which I would have said if Lightning73 had not gotten there first). The two dimensional line that people are talking about also has width, giving it a third dimension also. Everything that we can perceive with our eyes is three dimensional. Even when somebody uses a picture on a page as an example of a two-dimensional image, you can ask yourself how thick the page is.
But here is the trick. If you take a three dimensional object, let's say our classic 3D cube for instance and place it within another 3D cube, a room for instance, and you move it from one location to another, then you are said to be moving it in three dimensions right? You can move it up/down, left/right, and in/out. But, consider, that when you move the cube it moves through a fourth dimension at the same time, because it is also moving through time, which travels at a constant velocity. We measure time in seconds, minutes, hours, etc and no matter where in the world you are, the length of one second is the same, the length of time that a minute takes is constantly 60 seconds. While measuring systems for the other three dimensions can vary (how many centimeters are there in an inch, for instance?) time is measured the same all over the world. Going back to our cube within a cube example, when you move the cube positionally in the three dimensions, the time that it takes to travel from one location to another must also be taken into consideration, as the cube exists in a series of 3D coordinates along the path from the original position to the new position, and for each period of time that it spends in every one of those various locations on the way to its final resting place, you can say that it is already at a new location anyway! However if while moving the 3D cube you cause it to cease to exist, and then you create a new 3D cube at the new location within your spatial area of the room, then have you really moved the cube from one location to the other, or have you simply created a new cube? No matter how much the new cube resembles the old one, isn't it just a new cube? What's more, if you don't move the cube at all, if it stays exactly where it is, then it is still moving. Huh? How can it still be moving if it is not moving? It moves through time, which, as I stated before, is moving at a constant velocity. Given enough time, if our 3D cube were made of wood, or iron, or Swiss cheese, it would eventually decompose, and thus the shape, the three-dimensionality of the cube object itself would change as it corrodes with time. This, I believe, is proof that time is the fourth dimension.
People are forgetting that 1D can't be displayed (as a dot) because even a dot like this one: . , it still has a height and width of 1 square pixel.
forth dimention
What Is The Fourth Dimension? If shadows live in the second dimention and we live in third it only leaves one to beleave that we must evolve in order to comprehend a forth and as we have only been here for 7 million years (so they say) we may have a wile to wait. But considering all the speculisum suronding this topic and the fact the dinosaurs were here 5,6,700 million years it leads one to beleave it may already have a more evolved race/races living there.For it is arrogance to beleave we are the only ones in the known universe. -reply by tony
Wow, reading these replies just confuses me. You're all explaining the "fourth dimension" using a scientifical point of view.
The only type of "fourth dimension" I have heard of is like those at Disney World. "A Bugs Life - 4d!" where the fourth dimension means the ability to feel and smell, not just see. I'm not completely sure if this is what it is really supposed to mean or anything, but that's what they call it,  .
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