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The landlord may have misunderstood, let me tell the landlord, I am the most proficient in my side.
Landlord, you may have read a book about the universe to confuse the 3-dimensional space and the 4-dimensional world, I will first tell the landlord about the dimension of space, as for what the dimension means, it is inconvenient to explain, 1-dimensional space is a line, 2-dimensional space is a surface, 3-dimensional space is three-dimensional, we are three-dimensional, living in 3-dimensional space, as for the 4-dimensional world, it is 1-dimensional time plus 3-dimensional space, the modern universe is formed, and then as the 1st floor said, if it is a 4-dimensional space, you can travel through time.
The universe in our lives (remember, the universe in our lives, there are other dimensions in the universe, for example, the singularity has 14 dimensions) is composed of time and space, time = 1 dimension, space = 3 dimensions, and together it is a 4-dimensional world.
====Thank you***************====
Despise the Ignorant Race of the Copy Stream.
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It must be a three-dimensional space.
Because if it's a four-dimensional space, then people can travel through time.
Now it is said that three-dimensional space plus the dimension of time constitutes four-dimensional space. Since we perceive time on Earth to move slowly, we will not perceive the existence of four-dimensional space obviously, and if your speed is close to the speed of light, the energy of matter will change with the speed.
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3. Theoretically, all spaces do exist, but the current level of science and technology has not yet discovered the four-dimensional space, so in a sense, the four-dimensional space may exist in the ideal. This is for me most of the time so the space does exist, and it is also possible in tourism, but in its actual situation, we will find that because of the lack of scientific and technological support, people often find four-dimensional space, which is also the reason for sports, because of this, the thinking space needs people's scientific and technological development to help people better understand the world.
Most of the time, human beings living in three-dimensional space can adapt to free space, and can also live in four-dimensional space with the support of science and technology, but because of the lack of technical support, people have not yet discovered four-dimensional space.
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Popular science: Does the four-dimensional space exist, and what kind of creatures live?
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No. Because humans live in three-dimensional space, they cannot survive in four-dimensional space. At the same time, the four-dimensional space violates the laws of nature, so it does not exist.
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No, because people are three-dimensional, and four-dimensional space may really exist, but now humans have not discovered it.
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Because so far, there has been no strong scientific proof of the existence of four-dimensional space. Then there is no way to prove whether human beings can survive in the four-dimensional space.
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The creatures in the four-dimensional space are the ghosts agreeing to the thumbs up.
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Three-dimensional space. Three-dimensional space, in daily life, can refer to the space composed of three dimensions: length, width and height. Moreover, the term "three-dimensional space" used in daily life often refers to three-dimensional Euclidean space.
A space where the location 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 made on the basis of three-dimensional space.
It is also called three-dimensional space.
Four-dimensional space is different from three-dimensional space, which refers to standard Euclidean space, which can be extended to n-dimensional; Four-dimensional space-time refers to a misunderstanding of Minkowski's concept of space. As three-dimensional objects, human beings can understand four-dimensional space-time (three spatial dimensions and one temporal dimension), but they cannot recognize and exist in four-dimensional space, because human beings belong to the third spatial dimension. Usually speaking, time is the fourth dimension, that is, the time dimension under the fourth dimension of space-time.
The fourth dimension of four-dimensional space refers to the dimension of space with the same properties as x, y, and z. However, four-dimensional space-time is not a standard Euclidean space, and the essence of time is to describe the speed of motion.
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Now suppose there is a curve in the two-dimensional world. The protagonist of this line is Ant A. In fact, the ant has always lived on this curve, but for it, its journey is a straight line.
You'll never feel like you've turned a corner. Now, ants living in two-dimensional space have to think that they are lying, and even think that ants are stupid, and ants think so. However, the truth is that ants really can't feel that the path they have walked countless times is crooked.
No matter what you think, you can't imagine what this bend is. For an ant, two-dimensional space is where his brain cannot reach because his brain is also one-dimensional.
Four-dimensional space and four-dimensional space-time are not the same concept. In addition to the well-known three-dimensional space (length, depth, and height), there is also a fourth dimension in three-dimensional space! Three-dimensional space-time means that our three-dimensional time + time is another dimension!
Four-dimensional space-time is a real existence that we can't hear every day!
But in three-dimensional space, no one can explain it clearly. The fourth dimension is in **? Moreover, according to a concept called string theory, there are not only fourth dimensions in the universe, but as many as ten dimensions.
The concept is even more elusive! Currently, the three-dimensional interpretation holds that three-dimensional space is made up of an infinite number of three-dimensional spaces. Assuming this description is correct, who can draw an infinite number of three-dimensional spaces?
We can't really understand the three-dimensional space in the three-dimensional universe. All efforts to represent three-dimensional space can only be based on our understanding and imagination. While many people think the painting is more "how", who can prove its true "how"?
It is also argued that three-dimensional space uses the same unit of measurement, and that the essence of time is the division of the process of material motion (time is the process of material movement). Therefore, the fourth dimension should also be measured in the same units as the three-dimensional space. This statement of three-dimensional space + time is actually three-dimensional space-time (three-dimensional space-time can be directly called space-time because it is three-dimensional).
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It's because the thinking space is relatively difficult, and because there is no basis, people can't think of a four-dimensional space.
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Human beings are three-dimensional creatures, in the space where we exist, a flower, a leaf are all in the same dimension as humans, some people say that a piece of paper is very thin, it has no thickness, only length and width, so it is two-dimensional. But in fact, it is still three-dimensional, although a piece of paper is thin, but the molecules and atoms in the fibers that make up the paper are still three-dimensional. All the objects that we can see in this space are three-dimensional, and it is impossible for human beings to see two-dimensional or four-dimensional creatures, because the light we observe with the naked eye is also three-dimensional, and each dimension has its own physical laws of the world, and each dimension is independent of each other, so no matter what method you use to prove it, in the end you find that you are using three-dimensional matter to prove the matter of other dimensions, which is unscientific in itself.
Theories of higher dimensions cannot be applied to lower dimensions, and the two-dimensional world we speculate about today is based on three-dimensional cognition. From an observational point of view, it is impossible to see and difficult to understand imagining four-dimensional space.
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Because human beings live in three-dimensional space, according to the current level of knowledge and technology, ordinary people cannot imagine four-dimensional space.
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Because many people think that four-dimensional space does not exist, and four-dimensional space is something that many people dare not imagine.
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Because three-dimensional space is a space that human beings can already see, four-dimensional space has never been seen, so it cannot be imagined.
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Dimension is a proper noun used by scientists to describe space, one dimension is defined as a line, and two dimensions is a plane with only length and width definitions. Three-dimensional is a three-dimensional world, and it is not difficult for us to find that the world in which we humans live is such a three-dimensional environment. As long as these three dimensions are clearly explained, I believe it is not difficult for everyone to understand.
Some people may wonder what kind of existence is the four-dimensional space I am talking about.
What is the Fourth Dimension Human Being? Can you survive in dimensional space?
There is no standard definition of four-dimensional space, some are conjectures of countless scientists, and in the mathematical community, there are also so-called Klein bottles that can describe four-dimensional space.
However, in the four-dimensional space, there are many elements that can be defined as the standard of the fourth dimension, so as human beings, it is really difficult for us to imagine what kind of space can be considered four-dimensional. So what will happen to us humans when such an uncertain world is in?
Although we can't define the four-dimensional world exactly, we can reason through the two-dimensional world we are familiar with, that is, the two-dimensional world, that if the two-dimensional people with only the length and width appear in our human world, then no matter how powerful they are, they will not be able to get rid of their paper-like bodies.
There are many ways we humans can kill them, and even the world we live in can cause them a lot of inconvenience. It's hard for us to imagine what other abilities creatures in the fourth dimension have, maybe all kinds of shrinkage in the eyes of us humans, and superpowers for 10,000 years at a glance are very normal things in their world.
But from a biological point of view, our abilities are gradually derived in order to adapt to the environment of the world, if the creatures in the four dimensions will have such superpowers, perhaps the requirements of the four dimensions for themselves are also unimaginable to us, just like those birds that can walk in the sky, in order to allow themselves to soar in the sky, gradually evolved wings, and if we have no wings of human beings, suddenly appear in mid-air, the only possibility is death.
Therefore, the consequences of human beings entering the four-dimensional space can be imagined, even if we do not encounter higher-dimensional life, the chance of us surviving in the high-dimensional environment is very small. Perhaps the organs in our body will be deformed or even displaced by unknown dimensional forces, and they will lose their lives the moment they step into the fourth dimension.
Although the four-dimensional space is very incomprehensible to us now, every discovery of our human beings starts from conjecture, and if the four-dimensional space really exists, I think we humans will be able to discover it sooner or later. At that time, all our conjectures will be confirmed at that moment.
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