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It is generally believed that four-dimensional space exists. The real world we live in is a three-dimensional space, which, together with dimensional time, constitutes a four-dimensional space in a broad sense. According to Einstein's theory, the universe is also made up of time and space.
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It should not exist, and now no one has confirmed this, and the earth we live on is a three-dimensional space.
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The four-dimensional space was first proposed by Albert Einstein, and the four-dimensional space is space-time. No one has yet confirmed the existence of a four-dimensional space.
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The four-dimensional space was confirmed.
In fact, the four-dimensional space has long been confirmed by the German mathematician Bonhard Riemann to be real, Bonhard Riemann is a hypochondriac, usually very like to be alone, he has made important contributions to mathematical analysis and differential geometry, she created Riemannian geometry, to Einstein's general theory of relativity to provide a mathematical basis.
Later, he studied differential geometry and established the concept of Riemann space, and also proved that four-dimensional space is real, and that four-dimensional space is different from three-dimensional space, which refers to standard Euclidean space and can be extended to n-dimension. However, human beings are not yet able to enter the four-dimensional space, if human beings want to enter the four-dimensional empty plexus search room, then first of all, human beings need to adapt to the living environment of the four-dimensional space, and there is a clear difference between the four-dimensional space and the three-dimensional space.
Conceptual significance of four-dimensional space
In addition to the three-dimensional world that human beings live in, there is also a four-dimensional space, and the human organs, limbs, brains, etc., all operate according to the laws of the three-dimensional space, and at the same time, they are also greatly restricted.
According to his reasoning, there is no left, right, back, back, up and down in 4 dimensional space, and there is no direction. Therefore, with the full development of intelligent computers, scientists can use supercomputers to build a four-dimensional space and perform high-speed computing on it. Then the biggest difference between the 3-dimensional world and the 4-dimensional space may be the problem of time and space.
Normally, we are in a three-dimensional space, and everything is presented in three dimensions: width, length and height, so once a person breaks into the four-dimensional world, it is possible to break free from the rules of three-dimensional space and become a time controller, who can know the past and the future and the present, and no longer have a wide length and height to look at things.
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The true existence of the four-dimensional space is not yet known.
Four-dimensional space, also known as "Euclidean four-dimensional space", is the standard Euclidean space. It is a mathematical concept that can be extended to the n-dimension; The fourth dimension of four-dimensional space refers to the dimension of space with the same properties as x, y, and z.
In physics and mathematics, a sequence of n numbers can be understood as positions in an n-dimensional space. When n = 4, the set of all such positions is called a four-dimensional space. The four-dimensional space is different from the three-dimensional space that people live in because there is one more dimension.
Through the evolution of one-dimensional, two-dimensional, and three-dimensional space, some conjectures about four-dimensional space have been proposed. Although these conjectures cannot be proven correct now, many scientific theories are started by conjectures. Nowadays, scientific theories are generally based on the summary of phenomena, and there is no accurate and clear understanding of the phenomena in the four-dimensional space, or the phenomena are seen but do not think that the phenomena are caused by the four-dimensional space.
Axial symmetry of four-dimensional space
For four-dimensional space, it is generally accepted that space is axisymmetric, or centrally symmetrical. For example, if a person in three-dimensional space enters four-dimensional space and "rotates" it in an appropriate way and then returns to three-dimensional space, he will be "axisymmetric" (which is of course not possible in three-dimensional space, unless a three-dimensional version of the Möbius strip is used).
Of course, since no one has entered the four-dimensional space, this is only an analogy from the two-dimensional space and cannot be verified. But the idea of the timeline and the phenomenon of the moment of disarray of time and space are consistent with this.
A figure from a two-dimensional space cannot be symmetrical in two-dimensional space, but when entering three-dimensional space, it can be flipped back to two-dimensional space by entering the shed, and symmetry can be achieved, because it cannot be flipped in two-dimensional space, only rotated or translated. Therefore, we can speculate that the three-dimensional object enters the four-dimensional space, and then returns to the three-dimensional space, and the object may be "axisymmetric".
The above content reference: Encyclopedia - Four-dimensional space.
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