How many dimensions are there in space, how many dimensions can we see, and what are they like?

Take a three-dimensional look at this multi-dimensional universe.

One. As the simplest form of motion in the universe, it should be a linear motion, and we regard the movement of a point in 1-dimensional space as a straight line.

Two. A point in 2-dimensional space can move in two vertical directions at the same time at most, like a "circle".

Three. We are more familiar with the three-dimensional space, which is the three-dimensional space, which allows a point to move in three perpendicular directions at the same time, and the operation is like a combination of one-dimensional and two-dimensional space-time movement, that is, the spiral linear movement.

Four. The four-dimensional space is unimaginable for human beings in three-dimensional space, and the four-dimensional direction is at right angles to the front and back, left and right, up and down, etc., I can't show you what direction it is, but this direction does exist, because it can be expressed by the movement of the point in the four-dimensional space. It's amazing!

A three-dimensional spiral linear motion is like a vertical motion in its straight direction (plus one dimension), isn't this a four-dimensional space with (four perpendicular directions)?

Three-dimensional space is real, but humans can only understand three-dimensional, because human eyes can only see three-dimensional, so it is difficult to explain more than three-dimensional. The space above three dimensions needs to be constructed mathematically, but it is difficult to understand it carefully. On the basis of quantum mechanics, it is believed that the maximum dimensional space in the universe is 11 dimensions.

Dimension is a measure, which can be understood as direction, simply put: 0 dimension is a point, and there is no definition of length, width, or height. One dimension is a line made up of countless points, only length, no width and height.

A two-dimensional is a surface made up of countless lines, with length and width but not height. Three-dimensional is a body composed of countless faces, both in length, width and height.

On the three-dimensional spatial coordinates, plus the interconnection of time and space-time, the four-dimensional space-time can be formed. The four-dimensional space mentioned in daily life is a concept of time and space, and our universe is made up of time and space. Due to the relationship between time and space, an additional timeline is added in the spatial structure in addition to the three axes of length, width and height of ordinary three-dimensional space, and this timeline is an imaginary number axis.

The space that human beings currently live in is three-dimensional space, and there are three measurement coordinates, just like there are three measures in space: length, width, and height. Scientists speculate that there may be many dimensions in the vast universe, and aliens may exist in higher dimensional spaces.

Albert Einstein once mentioned in the Theory of Relativity that there is a huge gravitational force in the universe, and under the interaction of gravity, the universe is distorted and stretched into a number of different dimensional spaces, and different levels of organisms live in different dimensional spaces. Due to the low level of human civilization, they can only live in three-dimensional space.

Add a timeline to the four-dimensional space, and that is the five-dimensional space. For example, Schrödinger's cat, between opening and closing, you can see the life and death of the cat, but you can't see the life and death of the cat at the same time, that is to say, the problem of parallel time and space can be seen in the five-dimensional space. The six-dimensional space can control the parallel universe, just like the Flash went back to the past to change the world, which means that the six-dimensional space can directly control and change the situation in the parallel space.

The spatial dimension has a long history, the earliest can be traced back to independent parameters in mathematics, in the long era of physics after World War II, in addition to the theory of "three masters", theoretical physics also gave birth to a string theory, string theory believes that all microscopic particles are caused by different modes of energy strings.

Among the dimensional spaces, the highest is the 11-dimensional space. Scientists have deduced that the universe is divided into 11 dimensions based on string theory, and humans currently only exist in three-dimensional space.

The concept of "space" can be understood from multiple perspectives, but usually we understand space from a three-dimensional perspective.

First of all, we humans live in three-dimensional space.

can easily perceive one-dimensional, two-dimensional and three-dimensional space, but it is relatively difficult to understand more than four-dimensional space.

But theoretically, space can be arbitrary, but we can't easily understand it yet. Taking the four-dimensional space as an example, on the basis of the three-dimensional space, we add the time dimension to enter the four-dimensional space.

Conception. We can understand that there are countless three-dimensional spaces in the universe that are similar to our here and now, one at each point in time, so the three-dimensional spaces at all these points in time are superimposed, and it is a four-dimensional space. This is also a basic background for the current popularity of various time-traveling dramas.

But the concept of space is by no means limited to three-dimensional and four-dimensional, you can use your imagination to imagine the construction of high-dimensional space.

Three-dimensional space and 11-dimensional space, that is all space, space has included all dimensional space.

Three-dimensional space is our current space, and the eleventh and twenty-sixth dimensions are both true in string theory, but it is generally believed that there are eleven dimensions at the highest.

At present, the spatial dimension that has been explored by human beings is four-dimensional space, which is three-dimensional space and a timeline.

The dimensionality formula is that the dimensionality of sum space is equal to the sum of the dimensionality of space, which subtracts the dimensionality of intersecting space. dim(v+u)=dimv+dimu-dim(v u), for example, in three-dimensional space, the sum space of the two-dimensional space where the xoy plane is located and the two-dimensional space where the yoz plane is located are three-dimensional space, and the intersection space of the two is the one-dimensional y-axis.

If the intersection space is zero space and its dimension is zero, then the sum space can be decomposed in a straight sum: dim(v u)=dimv+dimu, for example, the direct sum of the one-dimensional Rattan space of the x-axis and the two-dimensional space of the yoz plane is a three-dimensional space.

The theorem asserts:

The theorem asserts that there is ind r for any natural number n"=ind r"=dim r"= r"=n is Lebesgue, h l.

In 1911, Brouwer, L. Brouwer e. j.

Proved separately in 1913.

ind r"=n is Brouwer, L e. j.

Proved in 1913ind r"=n is Menger, KIn 1924, Uresund (YPMCON, II

c.Separately proved in 1925.

One dimension has only length.

The two-dimensional flat world is only long and wide.

Three-dimensional length, width and height Three-dimensional world The world we see with the naked eye Three-dimensional space is the space where the position of a point is determined by three coordinates. The objectively existing real space is three-dimensional space, with three measures: length, width, and height. The concept of multi-dimensional space introduced in mathematics, physics and other disciplines is a scientific abstraction based on three-dimensional space.

The Concept of Four-Dimensional Space-Time Most of the "four-dimensional space" mentioned in daily life refers to the concept of "four-dimensional space-time" mentioned by Albert Einstein in his "General Theory of Relativity" and "Special Theory of Relativity".

Our universe is made up of time and space. The relationship between time and space is that a time axis is added to the structure of space compared with the three axes of length, width and height of ordinary three-dimensional space, and this time axis is an axis of imaginary values. According to Albert Einstein's theory of relativity:

The three-dimensional space we face in our lives together with time constitutes the so-called four-dimensional space.

There are four dimensions of space. In the four-dimensional space, time proceeds linearly, although the future cannot be **, but there is only one source, and there is only one future, no matter what will happen in the next second, there is only one future that will happen. Ignoring the 3D properties as well, we will see that any 4D object behaves as a line segment on the timeline.

Dimension is the number of abstract concepts that are "connected" to things, and the abstract concept of "connected" refers to an abstract concept that is connected by multiple abstract concepts, and any abstract concept that composes it is related, and the number of abstract concepts that make up it is the dimension it changes, such as area.

The three-dimensional world is stationary, when the three-dimensional world changes in time, the four-dimensional space is generated, if time is regarded as an axis, then any point on this axis is a three-dimensional space, that is to say, countless three-dimensional spaces are set according to the time axis, constituting a four-dimensional space.

One dimension refers to straight lines. Two-dimensional refers to the flat surface. Three-dimensional refers to three-dimensional space. The four dimensions refer to dimensions. Wushandong Xiaowei refers to the space where time is one-dimensional, hierarchical and three-dimensional, and the traditional three-dimensional space is unified.

An object in one-dimensional space has only length, no width and height. For example, if we want to lock up a one-dimensional object (which is actually a line segment), we only need to add a quiver point at each end of it. There are an infinite number of points in a straight line, which is actually a one-dimensional space.

If there are "people" in one-dimensional space, then their image is a point above the straight line.

Actually, a point is also a one-dimensional (two-dimensional, three-dimensional) space, but this one-dimensional (two-dimensional, three-dimensional) space is infinitely small.

First of all, there is no need to talk about it, we normal people know it. Then there is the 4 dimension, we explain it through a coordinate axis, the so-called dimension, that is, there are different corresponding values on the corresponding axis or direction of the dimension. For example, length, width and height, you can reach any point at will, any three-dimensional coordinate.

In a word, change creates new dimensions.

Time can be a direction in the fourth dimension. However, time is just an understanding of human beings, a way of saying that, in fact, the time we humans define may be nothing more than the "length, width and height" in the "eye" of higher-dimensional organisms, which can be measured by units of length, and can be deduced from modern scientific research theories, 1 second is equivalent to the length of a light-second measured by higher-dimensional organisms, which is the famous time distance conversion formula. The so-called 4 dimensions are the superposition of infinite three-dimensional spaces, like countless pieces of paper piled up into a book.

Like the working principle of cinema, human consciousness travels at the speed of light in this "paper", resulting in the illusion of time. These four dimensions, in our human definition, are space-time bodies.

Then 5 dimensions, it's easy to say. With time and space, there is a timeline, a world line, like a movie line. Is it too monotonous, the beginning, process, and ending have all been decided.

Thus the 5th dimension was born, and again, the metamorphosis dimension. Draw a straight line on a piece of paper and set a line between two points, that is, you can determine a timeline if you determine the state and position of objects in all three-dimensional spaces at two points in time. What about that many timelines?

You can think of the multiverse, the parallel universe, this whole paper, you can draw countless lines. Each point corresponds to a point in time, a kind of descriptive coordinate of the position and state of all objects in three-dimensional space. Lines move into planes, just like 1D becomes 2D.

6 Dw? It's easy to say, it's easy to say.

In the above five dimensions, it is still the same situation, a past corresponds only to a future, a fixed destiny, and only a speculative world line. However, will there be such a structure, many-to-one? There is no necessary cause and effect?

Yes, that's 6 dimensions, multiple cause and effect, no process necessarily leads to the same result, and all cause and effect are scattered and ordered. Is it that at this point, the world is huge? That's not enough.

The higher dimensions are difficult for humans to understand, so I won't go into them one by one. In short, there is also the idea of infinite dimensionality, which can also be understood as relative dimensionality. For example, if you look at an object with a velocity of 1m s, others may see it at 2m s, or more precisely, it may be a variety of outcomes.

So what about the three-dimensional in our eyes, perhaps a point in other dimensions (zero-dimensional). As I said, time is a human illusion, and higher-dimensional beings may see it as a component of space. Then the higher-dimensional beings also have the illusion of time, and the higher-dimensional ones are regarded as space.

The cycle goes on and on, stretching to infinity. Such a world can already be said to be infinitely infinite to the infinite power.

That's it, there are many such literatures, and those who have doubts will learn more, and eventually they will have their own system.

One by one. It's just a matter of your own vision, lie to yourself.

One, one point, one line and one side belong to things, and things will move.

Two, you yourself will move.

Third, when things move, you also move.

Fourth, the movement of things and yourself depends on the movement of other things. For example, when a car is moving, you look at an object.

I don't know how to continue reading.

Think of dimensions as a box.

Two-dimensional is a big box with multiple one-dimensional boxes.

Three-dimensional means that there is more than one two-dimensional box.

One-dimensional space. 1.What is eternal and unchanging is the physical object.

There is no time, no power, no speed, no movement, all is just an area when you are at rest. None of them will change. It's all dead two-dimensional space.

A change in a single object is physical object + time.

Three-dimensional space. There are multiple two-dimensional spaces at the same time.

There are many individual objects that change in different ways.

Four dimensions exist at the same time, and four dimensions of the same kind.

Four-dimensional ones can only change at the same time in galaxies.

The fifth dimension is when multiple universes change at the same time.

The six dimensions should add man's own fantasy space to each universe.

。Explain the crossing.

Crossing is theoretically possible.

But the crossing cannot be backward and forward. Only parallel traversal.

That is, you are still you. It's just that you're in a different dimension.

When there is a degree, the dimension changes.

In fact, gossip is a kind of dimensional interpretation diagram.

Let's talk a little bit about the above theory, borrowing from the multi-dimensional arrays of programming. Butterfly effect. Gossip. If you don't understand, you can ask, but don't spray. Don't get to know.

Always want to squirt others. It's really complacent.