Space Physics explains the meaning of dimension, one, two, and three N dimensional spaces.

It is space, the degree of space is different, so there is different space, the degree is the dimension, for example, a point, this is a one-dimensional (degree) space, the line in the plane is a two-dimensional space, the three-dimensional space is a three-dimensional space, and the set of time and three-dimensional is a four-dimensional space.

The space composed of space-time parameters in n-dimensional space should be a five-dimensional space, which is difficult to understand when it comes to black holes and wormholes in science fiction.

Definition: Lines are one-dimensional and parameters are points.

The surface is two-dimensional, and the parameter is a line.

The volume is three-dimensional, and the parameter is the surface.

By analogy, the space composed of body parameters is four-dimensional space, which is usually understood as time and space (or "space-time"), and similar statements can be seen from many science fiction **.

Regularity: The one-dimensional East and West are capable of accommodating the so-called zero dimension (straight lines are made up of points).

Two-dimensional things can accommodate one-dimensional things (you can draw a straight line on paper).

Three-dimensional things can hold two-dimensional things (a piece of paper in a box).

Then the four-dimensional thing of the head of the basket will naturally accommodate the three-dimensional. That is to say, our entire three-dimensional space can be placed in a four-dimensional space, and there is an infinite continuous three-dimensional space that can be placed in a four-dimensional space. From this point of view, different moments correspond to a different three-dimensional space.

Therefore, "ancient and modern, Chinese and foreign" can be understood as a part of the four-dimensional space.

Very simple. It's just that because we're in three-dimensional space, measurements larger than three-dimensional are not easy to perceive.

Let's start with three-dimensional, for example, vectors can be decomposed into x1, x2, x3}=x1+x2+x3 in three-dimensional space

These three component guesses are linear and independent. And it's orthogonal. In this way, the spatial Cartesian coordinate system has a basis.

These three components can be expressed linearly in any three-dimensional way to the macroworld. So the geometric space composed of 3D vectors can actually be expressed in these three bases for any 3D vector. Of course, the vector corresponds to the point, and the three-dimensional tardination quantity is actually a point corresponding to the three-dimensional Cartesian coordinate system.

This is true for n-dimensional vectors = x1+.xn

In fact, in n-dimensional space, it is a linear combination composed of n bases. In other words, it is also a point in its n-dimensional Cartesian coordinate system. Of course, the meaning of the right angle here is that n bases are orthogonal in pairs.

As you asked, I'll make it clear that an n-dimensional vector is actually a point in an n-dimensional Euclidean space. It's just that there are n vectors.

One dimension refers to length, two dimensions refers to length and width, three dimensions plus thickness, and four dimensions plus time.

So the one-dimensional space is a line, the two-dimensional space is a surface (i.e., the plane space), and the three-dimensional space.

It is a three-dimensional (three-dimensional space), a four-dimensional space.

It is a space to join the passage of time.

The graph defined by the function f(x,y) 0 is a two-dimensional space graph, and the space in which its graph is located is two-dimensional space.

The graph defined by the function f(x,y,z) 0 is a three-dimensional space graph, and the space in which its graph is located is three-dimensional space.

It is ,.. by the functions f(a1,a2).an) The graph defined by 0 is n is a spatial graph, and the space in which its graph is located is an n-dimensional space. (a1,a2,..an) is called an n-dimensional vector.

Here, only 2D and 3D have practical significance. Multidimensional space.

It's a branch of mathematics and it's very difficult. A lot of people study 4-dimensional space.

I hope to allow time and space to intersect, so that human beings can see the past and the future, but unfortunately, no one has succeeded.

High-dimensional space originated from a well-known hypothesis in the last century, "superstring theory", and if confirmed, it will be a new breakthrough in the history of our science. When it comes to the scientific development of mankind today, it is really by leaps and bounds, and the brilliant achievements we have made in the past 100 years cannot be finished in three days and three nights.

It is impossible for any far-sighted and wise man in ancient times to imagine the way of life of mankind in the twenty-first century. However, there are still many imperfections in our scientific theories, and many hypotheses have not been proven.

Take, for example, the so-called "high-dimensional space". In fact, the theory of high-dimensional space originated from Einstein's "general theory of relativity". Albert Einstein, a famous physicist in the last century, regarded time, space, and gravity as a geometric relationship, and human beings are in three-dimensional space; The highest level of structure in the universe is the four-dimensional space.

In the four-dimensional space, people can see the changes in time and space, which is the so-called "knowing the past and the future". Later, with the death of Albert Einstein, the physics community was leaderless, and various theories were divergent, and a group of scholars invented the so-called "superstring theory" in order to combine the "four powers" with some emerging scientific theories.

The superstring theory holds that everything is composed of invisible and mysterious "strings", and the highest level of structure in the universe is the "ten-dimensional space". From here, the term "high-dimensional space" finally took shape.

In this system, it is said that the four-dimensional space allows us to see the "linear structure" of time and space, but human beings cannot intervene in it, otherwise it will cause the "grandmother paradox"; In the five-dimensional space, human beings will lose their fixed form and become "omnipresent", shuttling through parallel worlds at will.

In the ten-dimensional space, all changes will stagnate, and the ten-dimensional life can flatten the universe in a flash, reshape the dimensions, and modify the laws of physics, almost as if it were the "Creator". Legend has it that a god-level civilization exists in the ten-dimensional space.

High-dimensional space points out that the universe we live in is actually an 11-dimensional space, which is made up of a vibrating plane.

High-dimensional space is a multi-dimensional quantized space, just like a plane is two-dimensional, a box is three-dimensional, a point in time in the past or future is four-dimensional, and so on.

Chen's model of the universe: It is a beautiful conjecture. Of course, the universe is not that complicated, although the human mind can run at will.

If it is space, it is three-dimensional, if it is consciousness, it is n-dimensional, and the imagination of consciousness is infinite, just as human greed is infinite!

To use an analogy: an ant walks on a piece of paper, and it can only walk to the right or left, forward or backward. Neither high nor low means to it, which means that the third dimension of space exists, but it is not recognized by ants.

It seems to be thinking, but there is not thinking, if there is thinking, there is nothing to think ....... What does high-dimensional space look like in the minds of modern people? Like a writhing square?

Like a cooling tower in a power plant? Like strips of paper twisted end to end? Or is it the neck of a flask that bends and threads from the side of the body into the bottom of the bottle that attaches to itself?

Or when an object's speed exceeds the speed of light, space will actively change its dimensional ...... for itAnd so on and so forth. Cosmic physics students exist in their own fairy tale world, and the dream is gloomy and long.

Spatial dimension = 1 possible number of worlds in the world.

The origin of all things is briefly described as follows:

All things are born in one, divided into two, formed in three, existed in four, and expanded in five. One, that is, the ontology. Second, that is, time (existence) and space (possible states). Three, that is, materials, laws, and existential forces. Four, that is, the four possible worlds, free, self-willing, self-denial.

The free possible world, which solves the problem of the coexistence of all things in the same world and the reason for the existence of a large number of identical atoms, protons, neutrons, electrons, and photons in the universe; The possible world of freedom solves the problem of the mechanism by which an ontology produces an infinite number of substances and the multi-layered, ever-moving problem of the material system in reality. The possible world of self-Ken solves the cause of the observability of matter itself, solves the full-space validity of matter to remain constant in time and the laws of physics, and solves the full-space material wave dispersion phenomenon of photons and particles of all wave-particle binary images in photon double-slit interference quantum experiments. The problem of the possibility of self-denial solves the problem that matter is constantly changing in time, that matter monopolizes space in space and thus produces an external hard shell boundary, that time occurs in one direction, and that any number of substances can coexist in the same external space.