<h1 class="pgc-h-arrow-right" > what kind of space do we live in? </h1>
From the early ape-man onwards, we have evolved, and the content of our thinking has begun to shift from the primitive how to survive to the exploration of the universe. With the development of science and technology, technological innovation, we are no longer satisfied with the current situation, and began to explore our living space - three-dimensional space.
Three-dimensional space, also known as three-dimensional, 3D, translates these technical terms into daily life, meaning a space composed of three dimensions: length, width, and height.
The first discovery of three-dimensional space is the quantum Hall effect, according to this technology, human beings have developed 3D film and television technology, such as the once-blockbuster movie "Avatar", which uses 3D technology with strong visual effects.
We continue to make breakthroughs in the field of scientific exploration, but there is still very little exploration and understanding of four-dimensional space above the three-dimensional space. In fact, the German mathematician George Bernhard Riemann proved that four-dimensional space really exists.
Therefore, many conjectures related to four-dimensional space have been derived since then, such as what will happen if humans enter four-dimensional space? Today, Xiaobian will take you to understand what people will become after entering the four-dimensional space.
<h1 class="pgc-h-arrow-right" >What is a four-dimensional space? </h1>
For the concept of space, scientists in the world have opened their minds and integrated through practical and theoretical knowledge to divide space into five dimensions, namely zero-dimensional, one-dimensional, two-dimensional, three-dimensional, and four-dimensional.
The first is the zero dimension, which refers to the world of points. It exists at the bottom, but it is its existence that contributes to the emergence of later dimensions. Just like in our mathematics, points lead out of lines, lines lead out of faces.
The second is one-dimensional, which refers to the world of lines, only length.
Again, it is two-dimensional, which refers to the flat world, only long and wide.
From the second is three-dimensional, indicating the three-dimensional space world, that is, the space in which we now live.
Finally, there is the four-dimensional space, a concept of space-time, that our universe is made up of time and space.
The so-called four-dimensional space, also known as the "Euclidean four-dimensional space", is the standard Euclidean space. It is a mathematical concept that can be extended to n-dimensional; and contains X, Y, Z, and other dimensions in three-dimensional space.
However, many people misuse the concept of four-dimensional space, confusing four-dimensional space with four-dimensional space-time. The so-called four-dimensional space-time actually refers to the concept of time.
As objects in three-dimensional space, we can only see the continuous passage of time, but we cannot accurately identify objects that exist in time.
If we use the "dimensionality reduction strike" to describe, just like the characters we draw on paper, the anime we make, we call it the second dimension, that is, the two-dimensional space, they have no Z dimension, only exist in the plane.
As a three-dimensional being, we can control and clearly see every object that exists inside. On the contrary, as time in the four-dimensional space, it can control our lifespan, but we cannot get rid of and recognize.
At present, we can't break through in space, but that doesn't mean we humans can't understand four-dimensional space and explore it, so the elite and top scientists in the mathematical community have finally defined this after continuous efforts.
That is, a space with four spatial dimensions, or a space with four orthogonal directions of motion, is a four-dimensional space. This definition is a great progress of our human exploration of four-dimensional space, and it has a strong role in future development and application.
< h1 class="pgc-h-arrow-right" > how to discover four-dimensional space? </h1>
After talking about what a four-dimensional space is, let's talk about how four-dimensional space is discovered.
The first to propose this concept is Einstein's "Theory of Relativity", in which Einstein said that we human beings are very small for the earth, so we feel that time is relatively slow, but the movement of time will not be slowed down because of the smallness of human beings.
For example, if we take the time of human survival as the axis, then animals that are smaller than humans, such as cats, dogs, rabbits, and other creatures, have survived for less time than humans, so it can be seen that on the same timeline, the time that objects feel is different, and the consciousness generated by time will be different.
Einstein once proposed the concept of the speed of light, which is about 299792458m/s, which is also close to the speed of the cosmic wormhole. After this, Einstein successfully listed the equation E=mc² and relied on these basic concepts to elicit entrances to four-dimensional space.
If we humans sit in a spaceship and its speed is close to the speed of light, then we will break through three-dimensional space and enter four-dimensional space, and the time we feel will also change, different from that of humans on Earth, which will greatly extend our lifespan.
Later, the German mathematician Georg Bernhard Riemann also analyzed four-dimensional spaces. He wrote On the Hypothesis of the Foundations of Geometry through knowledge of mathematics such as geometry, and talked about spatial dimensions in the book.
His thinking jumped out of the original two-dimensional space and three-dimensional space, integrated the two basic dimensional spaces, and finally expressed the meaning of four-dimensional space in the form of equations, confirming the existence of this space.
After reading it, experts in the relevant field were greatly inspired, and through the team of mathematicians, they finally came up with a three-digit equation: ax+by+cz+du+e=0.
The emergence of this equation not only prints the space that we cannot touch and touch on the two-dimensional plane, but also briefly expounds such a complex concept.
The astonishing discoveries of the two "giants" laid a solid foundation for us to continue to explore the four-dimensional space later. If we humans break through the limitations in the field of technology and eventually enter the four-dimensional space, what kind of changes will we have.
<h1 class="pgc-h-arrow-right" > what will people become when they enter the four-dimensional space? </h1>
First we make assumptions about speed, when our speed is close to the speed of the universe, we can enter four dimensions of space, at which point our speed will approach or reach the speed of light.
This speed is on the earth's surface, which can cross the Atlantic Ocean in just a few seconds, while also seeing everything around it, almost at rest.
Just like in "The Flash", when the hero's speed reaches a certain level, he can not only cross, but also enter the unknown space, and constantly shuttle in this infinitely extended space.
So according to this idea, we can enter the four-dimensional space with speed, in which we can not only control the past and the future, but also choose the time node and space at will.
But at our current level of technology, the speed cannot reach the speed of light, so simply entering the four-dimensional space may make us stay in the silent space, like an astronaut drifting in the universe.
The second is that when our body shape changes, so that when we reach the timeline of the universe, we feel the time change differently.
In the above, we elaborated on the different feelings of small objects such as cats and dogs and humans about time, so that the minute we exist may be their few minutes. For smaller objects, it can reach a day or an hour.
In the movie Ant-Man 2, as the first-generation Ant-Man wife shrinks, while the husband remains in a normal body, the result is that the husband gets older and the wife gets older. Therefore, when an object shrinks or becomes larger, the movement of the molecules and quanta existing in the body also changes, thus changing its own conception of the realm of time.
In the end, we enter the four-dimensional space without any change, and we will become "dolls" in space. The reason for this is because we are currently unable to break through space through the realm of consciousness. Like the characters in the anime and the portraits on the drawing board, they do not have a consciousness higher than their own spatial realm.
Further, as they do, they think they are voluntary, but they are manipulated by objects in three-dimensional space.
In this case, we can understand it as a "dimensionality reduction strike", that is, we cannot speculate on all the motives of the four-dimensional space, nor can we predict what will happen after that.
It is precisely because the four-dimensional space has one more timeline than the three-dimensional space, so the time in the four dimensions can be infinitely extended and infinitely reduced.
So we are in the three-dimensional space, it is impossible to reach the four-dimensional space, even after the breakthrough in the field of science and technology, we can not quickly understand the mystery in consciousness, and will eventually be locked in the four-dimensional space.
<h1 class="pgc-h-arrow-right" > four-dimensional space is a concept of time </h1>
The space we are in is a three-dimensional space, part of both a two-dimensional world and a four-dimensional world. In the research and exploration of many scientists, it can be understood for the time being that each layer of space will be superimposed accordingly, from points to lines, from lines to surfaces, each layer of space controls both the content of the previous dimension space and the control of the higher dimensional space, just like the set in mathematics.
Each layer of space has its own unique characteristics, the first dimension exists in the length, the second dimension exists in the length and width, and the superimposed combination between them creates a three-dimensional space and a four-dimensional space. Therefore, scientists extract the unique properties of space, and thus simplify the four-dimensional space into the concept of time.
The development of this theory can be said of Minkowski, who fused independent space and time and, in electrodynamics, carried out four-dimensional treatments, and then went to the equation of space-time concept S² = r² + (ict) ². The emergence of this equation was developed by Einstein into general relativity, which in turn led to the concept of the timeline.
<h1 class= "pgc-h-arrow-right" > whether four-dimensional space can be used in life </h1>
If the concept of three-dimensional space can be applied to film technology, can the concept of time in four-dimensional space also be integrated into life?
I believe that you have seen "Inception", and the concept of time is described in the movie. One minute in the dream state is equal to six seconds in the real world, and according to the superposition of the number of layers in the dream, the time in the dream will be even more different from the current world.
Based on this principle, we combine the theoretical knowledge of four-dimensional space and apply it to medicine, in a limited time, infinitely stretch the unit of time, so as to improve the probability of successful surgery.
Of course, the ideal is very full, the reality is very bone, and now everything is a hypothesis, but it does not mean that we cannot succeed. The reason is that our current technology and human consciousness have not reached the threshold of four-dimensional space, so we can only hold the courage not to be afraid of difficulties to explore this unknown everything.
<h1 class="pgc-h-arrow-right" > conclusion </h1>
Our current scientific and technological development has been on the rise, from the beginning of the exploration of the moon and the earth's operation, to the current lunar probes, satellites and other emerging technologies.
The continuous exploration of unknown areas, on the one hand, promotes the continuous updating of science and technology, on the other hand, makes the human mind consciousness gradually improve.
For the breakthrough of four-dimensional space, it will not stop here, after all, in the exploration of the concept of space, we already have the corresponding theoretical knowledge and practical operation. Even in the face of the limitations of the level of science and technology, human potential can still create infinite possibilities. Finally, the pace of human progress will eventually enter the field of four-dimensional space.