When can be the fourth dimensional world visible to us?

Answer 1

String Theory, which is a possible candidate for the Ultimate Theory of the Universe, demands that there actually be ten spatial dimensions! Four spatial dimensions are impossible for our brains to comprehend and picture let alone ten.

You 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.

Imagine 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.

This 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.

There 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.

For 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.

Now 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.

Here 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.

Similarily, 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!

So, to answer your question: we won’t ever be able to see the 4th dimension.

Answer 2

The so-called extended dimensions of our known universe are four: time, and x, y, and z in Cartesian coordinates. When we specify a velocity, for example, we invoke all four dimensions.

The x, y, z dimensions (which we can call left right, forward backward, and up down) are used to indicate the distance (S)something travels. Time (t) passed while traveling S tells us how fast we had to go to cover S. Thus, velocity = v = S/t.

Without invoking direction of the travel, we can still find the speed of something, like your car. When going 60 mph, we are saying your car travels sixty miles in sixty minutes. Once again time, the fourth dimension, is used, but without specifying a direction.

Bottom line, the fourth dimension is "visible" or used by us all the time. We live in a four dimensional world. We cannot precisely specify the location of anything without specifying when that anything was at x, y, z. That's why we are a four dimensional world, which we can indicate by S(t) = f(x, y, z, t) where x, y, z, and t are our four dimensions.

Answer 3

4 Dimensional World

Answer 4

The fourth dimensional world is already visible to us. The four basic dimensions that we currently live in are length, height, width, and time. Although we usually only recognize the first three, we must not forget that with the absence of time, we would not move forward. We would be stuck in the same era for eternity.

Answer 5

This Site Might Help You.

RE:
When can be the fourth dimensional world visible to us?

Answer 6

http://en.wikipedia.org/wiki/Fourth_dimension


The concept of a fourth dimension is one that is often described in considering its physical implications; that is, it is known that there are three dimensions: length (or depth), width, and height. The fourth dimension is orthogonal to the other three spatial dimensions. The cardinal directions in the three known dimensions are called up/down (altitude), north/south (latitude), and east/west (longitude). When speaking of the fourth dimension, an additional pair of terms is needed. Attested terms include ana/kata (sometimes called spissitude or spassitude), vinn/vout (used by Rudy Rucker), and upsilon/delta. The fourth dimension is often identified with time, and as such is used to explain space-time in Einstein's theories of special relativity and general relativity. In this case, the concept of an additional spatial dimension would be referred to as the fifth dimension. In this article, however, we discuss the implications of considering the fourth dimension as another spatial dimension.

Answer 7

As the Einstein referred 4Th dimension as time, this dimension is visible to us but we can not control it.

Answer 8

you cannot see the fourth dimension because it is time, but it is not the only dimension that is invisible to us, if string theory is correct there could be eleven dimensions

Answer 9

If we knew the answer to that, then we would have the means to make it possible. As we do not have the means we can only speculate.

Answer 10

we CAN see the fourth dimension, it causes gravity, though i guess you can SEE gravity but you can obviously tell the effects