do you believe in the 4th dimension?
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Forth Dimension - Another Dimension?\n\nMay be you meant another dimension than our so called reality. \n\nScience knows that there is no atom as a material item, there is only energy. Energy can be rough or fine in frequency and nature.\n\nEnergy goes far beyond our so-called natural world. Thoughts are energy, intuition is. I often had a feeling about something without knowing the details. Many times it turned out that my feelings were right on. Everybody has this ability, some are more aware of it than others, some use it more often than others.\n\nScience is challenged by the crop circles. As hard as science tried to imitate the crop circles with their intricate patterns, it did not succeed. No observation brought proof that some students would bend the corn plants. Furthermore, when bent by means of earth, the plants were sharply bent, yet, when made as supernatural crop circle, they were gently bent, as if steamed. Science has no answer as to how the crop circles are made, unless it would admit that there are some otherdimensional forces at work, which have skills that go far beyond ours. It seems that intelligences without a body are at work, able to express themselves in symbolic messages, many of which resemble the stone age messages (see Professor Herman Wirth Roeper Bosch's books).\n\nMany people have reported contacts with those who had left the earth plane, and Pete Sanders (an MIT graduate) teaches otherdimensional skills, some named in his bestseller book "You Are Psychic!"\n\nBy the Bio*Chakra Light MeditationTM we can change the past and brighten the future, tapping into the brighter dimensions (see www.biochakra.com, Hilites).\n\nIs not the Cabbala Tree of Life rooted in heaven, in the other dimensions, and its branches reach to earth? What are the ancients telling us? The roots of all events on earth are in the other dimensions; and what comes down to earth as the fruits of the tree, are the worldly facts we experience. If we want to change the fruit, we have to change the roots. Here is where spirituality and religion come in. Our thoughts are of the other dimensions and can create here on earth. Should not we better have good thoughts, experience harmonious sounds, colors and events -  rather than feed our lives with detrimental thoughts, destructive noise called music and nasty scenes, which may get stuck in our unconscious and create in our lives?\n\nI think that the other dimensions make life on earth more meaningful as a school to learn our true powers.\n\nMay be you want to read Carlos Castanedas' books, especially volumes 3 and 4. Events as described in these books have been known from other cultures and areas of the world.\n\nIn naturally altered states (Alpha State and beyond) we can reach these other dimensions and potentially may know everything, for all is one. It is a question of focus without doubt.\n\nHappy interdimensional journeys.\nCordially, India.Magica
1101802
Refering to the four dimensions, I assume you mean three spatial dimensions, and one of time.  This is correct.\n\nString Theory, which is a possible candidate for the Ultimate Theory of the Universe, demands that there actually be ten spatical dimensions!  Four spatial dimensions is impossible for our brains to comprehend and picture let alone ten.  \n\nYou might be wondering why we aren't aware of the extra seven dimensions if they do exist.  The reason: they are curled.  Let me explain what that means.\n\nImagine looking at a clothesline.  From afar, it looks like the clothesline only has two dimenions: you can either go left or right.  Now when you move closer, you are able to see the third dimension of the line, which would allow say an ant to crawl around (up and down) as well as left and right.  You couldn't see that dimension from afar because it is curled up and very small.\n\nThis is the same principle with the other seven dimensions.  They are curled up, and can only be seen if we were able to probe to a small enough distance.  This distance is actually a millionth of a billionth of a billionth of a billionth of a centimeter!  That is way too small for us to be able to see today, and probably for quite some time.\n\nThere are some tricks though for getting a feel for 4 dimensions.  You consider an example that relates 2-D to 3-D, and then apply that to relating 3-D to 4-D.\n\nFor example: imagine a table top is a 2-D Universe, and on that Universe lives a being shaped like a square.  If you were above this 2-D plane and were to talk to the square, he would hear you, but not see you.  If you decided to show him a sphere, would have to pass the sphere through his 2-D Universe.  The only problem is, he wouldn't see the 3-D sphere.  He would see at first a point, followed by a succession of circles that kept growing until you reached the mid-point of the sphere, which would be the biggest circle.  Then as you continued to move the sphere through the plane, he would see a succession of circles that got smaller until he saw a point, and then nothing.  The point is, he would only see cross sections of the sphere, which are circles.  \n\nNow apply that to our Universe.  If a being were in the fourth dimension and tried to pass a hypersphere (a 4-D sphere) through our Universe, we would only be able to see cross sections of that hypersphere.  What would we see?  We would see a succession of 3-D spheres that kept growing, reached the largest size, and then shrunk back down to nothing!  So, the cross section of a 4-D sphere is a 3-D sphere.\n\nHere is another really cool example.  Going back to the square being, let's say he had a safe.  His safe would have four walls, in which one of the walls would act as a door.  It would basically be a hollow square.  Since there are four walls, a 2-D being in that Universe would have no chance at getting any money out of the safe without opening the door.  However, you being in the third dimension above the 2-D plane, could simply reach in and grab the money coming from the top. It would be a complete magic trick to the square.\n\nSimilarily, a 4-D being could reach in our 3-D safe reaching in from the fourth dimension, and take our money without opening the door!\n\nHope that helps.
1118502
I might be able to answer more fully if you reword your question and put some thought into exactly what it is you're looking for.  For example, string theory predicts extra dimensions beyond the four we experience.  Is that it?  Or are you referring to the Branes explanation, where there are extra dimensions as well as additional universes removed from our own?  Get some additional details and I'll edit.
158992
sorry i must really correct the first answer before i continue;living in a 10 dimensional world is just a theory,known as string theory,and that is all it is,there is no proof\n\n(and the theory ACTULLY states that there are 11 dimensions)\n\na 2d object could not even physically exist because even if you had the smallest possible object that could exist indepdantly(an atom) it still has dimensions of length width and height,however small it may be it is not 2d\n\nIn writing the answer im kinda curious as to Could you theoretically stack and infinate number of 2d objects on top of each other and it still remain 2d?? anyone know?
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Our universe has 4 dimensions of space-time, and the domain of these domains is finite.  However, the expansion of that is in a larger dimensional space--meaning more than our four dimensions, with higher dimensions orthogonal to our four.\n\nThink of the 2-D surface of a balloon.  If you were a 2-D being on the surface on that balloon, you'd have no concept of the 3-D space inside and outside the balloon--your entire existence wouldbe contained on that 2-D surface.  But if the balloon inflated, you 2-D reality would grow in the context of the larger 3-D reality which was beyond you.
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You must think about the 3d visualization of 4d objects as partials projections or perspectives (as well as when you represent a cube drawing it on a paper sheet, you only describe some of its properties by analogy): so you cannot "see" 4d objects: you can only describe them.\n \n\nSee this link for a rough idea of an hypercube (there would be much more to say about it ...)\nhttp://answers.yahoo.com/question/index;_ylt=Apvwu5u3VyjMZfW_mDnnJUnsy6IX?qid=1006012001214\n\nSee this other one (expecially the links in all answers) for the so-called "Klein bottle"\n\nhttp://answers.yahoo.com/question/index;_ylt=As6vB06qMWLWdUaS3dhCfW_sy6IX?qid=1006013107146\n\n\nfour dimensions is interesting in maths because (they say: I'm starting now to study it) that there are many different "regular solids" which you can hypotize counting sides, vertexes and faces. From 5th dimension on, there is only one kind of regular solid, so it is not considered an interesting field of study.
484105
Yes I do. Think of how big we can honestly say we know that space is, then think a million times that size. There are probably millions of different universes out there.
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Yeah, we can't even envision what a 5D world would be like (here I'm talking four coordinate and one spatial dimensions).  Seriously, can you seriously envision what the equivalent of a sphere would be in 5D?  All points equidistant from a given point, but we have no idea how to "view" it in our minds.  However, we can use definitions and theorems to prove things about the other dimensions via differential geometry.  That's what is so incredible/awesome about math.\n\nBy the way, the 5D equivalent of a sphere (or 4D coordinate space equivalent) is called a hypersphere.  Go figure....
110094
Yes, definitely multiple postings... \n\nwell... a fourth dimension is time... so anything that changes over time is a fourth dimensional object. But that isn't what you are really asking.\n\nWe can only perceive four dimensions with our senses, so perceiving it is difficult. To us it would look as if it were a regular three-dimensional object, perhaps changing over time in some subtle way. Jack L. Chalker did a good job of describing such a structure in his "Quintarra Marathon" books. This is similar in idea to how you would describe a three-dimensional object such as a pencil to a person living in a two-dimensional world, at best they could only see a cross-section of the pencil, or if the world they were living on were curved they would see multiple cross-sections and not realize they were the same object (put a pencil through a folded piece of paper).\n\nIf you are looking for a way to visualize it to help with problem solving I recommend thinking about it in terms of computer arrays, or a group of three dimensional objects, each can be looked at seperately.\n\nGood luck with your conundrum :-)
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Alot of people pinned down 4 dimensions pretty good, but nobody has explained the dimensions beyond 4 very well, except to say that they exist. Let me take a shot:\n\nOPE did the best job of explaining the first 4 dimensions, I'll summarize and then move into the other ones.\n\n0D: Imagine a point, the smallest little dot with no length. There is only one point in this dimension, 0.\n1D: Imagine a line that can have any length in 1 direction but no length in any other direction. We can describe a point on this line with one coordinate, x.\n2D: Imagine a sheet of paper that is infinitely thin (you hold it sideways you see nothing). We can locate a point on this plane by (x,y).\n3D: This one's easy. You find a point in 3D space by (x,y,z)\n4D: Harder. In 3D, your point cannot change. You cannot move around because in order to change position you need one more dimension, time. For a point to move from one place to another (dx,dy,dz) it requires a change in time (dt). To locate this point now you need to define its position as (x,y,z,t) or else you won't find it. If you imagine your point is a person you want to meet, you would have to be told where in space (x,y,z) they will be and when (t) they will be there, or else you are not guaranteed to find them (unless you both have cell phones).\n5D: The hardest. Go back to 0D (a single point). If we were able to shrink down to the size of this point, instead of seeing a point, we would see a tiny circle. So if you were trying to locate a point in 5D, you could not locate it exactly unless you placed it in (x,y,z,t) and w, it's location on that circle. So you now have (w,x,y,z,t). The radius of this 5th dimension is so small that we can't see it, but we should be able to perceive its effects when our technology improves. It makes a lot of sense mathematically because it explains why we can't explain gravity at tiny (quantum) levels. The math doesn't work unless we add dimensions and wrap strings around them. Note that dimensions 5 and up have a property called compactification. That means that anything operating on the compactified radii of these dimensions moves in a complete circle, always returning to its original position. The radii are so small that we cannot percieve a change in position at all; a particle changing position along one of these dimensions seems to not move to us.\n6D and up: Very hard to imagine. Your point can now be found on two circles. The easier way to think of this is a point on the surface of a sphere, which will give it two coordinates on a tiny round surface (like longitude and latitude on the Earth's surface). Now you can add as many compactified dimensions as mathematics permits given whatever theories you are trying to incorporate. Your compactified radii can be given upper and lower limits to allow them to be plausible.\n\nI saw some people say infinite dimensions and another say 27. The reigning theory has 11 dimensions. 27 dimensions comes from a part of string theory that claims that matter does not exist and that there exists a fantasy particle with very strange properties, called a tachyon. This theory ties in to the most prominent theory, M-theory, which says only 11 dimensions is needed to explain everything.
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We observe four dimensions everyday, three spatial and time.\nBut...theories such as string theory predict that the space we live in has in fact many more dimensions (frequently 10, 11 or 26), but that the universe measured along these additional dimensions is subatomic in size. As a result, we perceive only the three spatial dimensions that have macroscopic size.\n\nThis is not so strange as it sounds, which I'll show with an example. Imagine you are in an airplane, flying over sea. Seen from a height, the sea looks flat, two-dimensional. But when the plane looses height we start to perceive the waves, that move in a third direction we could not see before.\n\nThe universe could be the same. Four macroscopic dimensions and a few more, hidden ones. We can only perceive them for instance, by the small effects their existence might have on subatomic particles.
522362
In our three dimensional universe, time is considered the fourth dimension.
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Before we take on the four-dimensional Universe first a two-dimensional example. \n\nImagine a two-dimensional plane. An ant walking on it can go in any direction, without finding a boundary. Secondly if it keeps walking in one direction, it will never come back on the same place. The plane is infinite, without bounds.\n\nNext the surface of a two-dimensional sphere. This time the walking ant again will not come to a boundary, but he will, after some time, come back to the some place. The sphere is without bounds, but finite.\n\nWe see that these two ant Universes are different, although a shortsighted ant, would never be able to distinguish the two.\n\nNext lets move to our Universe. We are short-sighted ants too. Our telescopes can not see far enough to distinguish if we are in the three-dimensional equivalent of the sphere of the plane. \n\nAnd it is even worse. As we are living in three dimensions  more complicated space are possible. Imagine we are living in a cube, a special one with the following property. As soon as we leave the cube through one side, we enter it again on the side opposite where we left. This space is the 3-dimensional equivalent of a torus.\n\nYou see were we go: in three dimensions more complicated space are possible. One is the dodecahedral universe you mention. It has the shape of a dodecahedral, again with the property that if we leave through one side, we enter through another.\n\nImplausible? Maybe. Maybe not. At present we really have no way to tell. Just as the short-sighted ant.
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There are heavenly many dimensions.\n\nYours sincerely,\nThe Immortal God.
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If your legs lived in, say, the 4th Dimension - how would your brain be aware of them since it exists only in 3 Dimensions? We are physically in 3 dimensions (time is an illusion made to mark the difference between one state and another) - we can comprehend of separate parts of our bodies being in different dimensions as much as a stick man drawn on a piece of paper can imagine moving freely around the room in 3 dimensions.  We can only visualise higher dimensions using tricks such as looking at the shadows cast when a 4 dimensional object is illuminated inside a computer program.  What would it matter how big the sock was to be pan dimensional? Good question though.
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Our universe consists of four dimensions: three of space and one of time.  This leads many people to think that the "fourth dimension" refers to time, and higher dimensions must be associated with something else.  That isn't true.\n\nTheoretically, there is no limit to the number of possible dimensions, whether spatial or otherwise.  Another universe might have six dimensional space and two dimensional time, for instance.  We can't imagine such a place, but using math, it's pretty easy to describe its properties.
926992
Well, isn't that what we're doing right now?  Traveling through time?  Living in the 4th dimension as it were?