shock!The vase in the entertainment industry was reborn to become a god of learning
Chapter 331: Can I Really Travel Through Time?
When IQs are at the same level, the only thing that determines the winner is often these insignificant details.
As soon as Xie Feng finished speaking, the whole class fell silent.
Those who were originally a little unconvinced now have nothing to say.
They were all smart people, so they understood what Xie Feng said without him having to say everything.
Perhaps it is not just the details that determine success or failure.
Most of them have been the "other people's children" in the eyes of their neighbors since they were young. They are gifted and have never caused their parents any worries with their studies, so they have a hint of pride in their characters.
But after coming to this class, which gathers the most talented and smartest students in the country, perhaps the former top student has now become the last one, and the psychological gap is difficult to accept for a while.
Compared with Shen Youan and Liu Runxi, are they just missing details?
Gu Bichen was trained by the Gu family, so why didn’t he get full marks?
Perhaps this one point is the gap that they cannot make up even if they spend their entire life.
Admit it, they think they are smart, but in fact, they are just so-so. There are always smarter people, just like the dimensional world. They live in the three-dimensional world, and higher dimensions are beyond ordinary people's cognition, but they still exist, waiting to be discovered by the advancement of science.
Xie Feng picked up the chalk, turned around, drew a straight line on the blackboard, and then dotted at a certain position on the line.
"what is this?"
Cheng Xuyuan answered quickly: "A straight line."
Gu Bichen replied: "In a one-dimensional world, a point on a straight line is a one-dimensional object."
Xie Feng showed an approving expression: "Not bad, the response is very quick."
Cheng Xuyuan smiled awkwardly. He must be mentally ill. He made a huge fool of himself.
Xie Feng drew a long vertical line based on the original straight line, and drew a flat rectangle based on the two points of the two lines intersecting each other.
"what is this?"
At this time, someone answered: "Two-dimensional world."
"The two-dimensional world is an infinite flat plate. If we want to find a point in this world, we use X and Y to determine it."
Xie Feng used X and Y to represent coordinate axes.
Then he drew a circle on the lower right. "If you want to find the area of this circle, how do you do it?"
Gu Bichen replied: "It is impossible to calculate, because our vision is limited to a plane, and we can only see line segments without thickness."
"Yes, our vision limits our thinking."
Xie Feng picked up a piece of paper on the desk, folded it in half and then opened it again. "Suppose there is an ant on the right side of this paper. Let's consider the ant as a two-dimensional creature. If we want it to crawl from one side of the paper to the other, the ant has to walk across the entire paper. But if we roll up this paper."
Xie Feng rolled up the paper and turned it into a cylinder, a three-dimensional object. Xie Feng pointed at the seam and said, "The ants only need to walk through the seam to reach their destination. The two-dimensional space is bent to obtain a three-dimensional space."
"The curling creates new dimensions, which is the theory of wormholes in physics."
Shen Youan, who had been silent all the time, suddenly raised his head.
Xie Feng smiled slightly, put down the paper, picked up the chalk and turned around. Based on the two intersecting lines, he drew another intersecting line. Using the three lines as a basis, he outlined various objects.
This time, before Xie Feng could ask, someone answered: "This is three-dimensional space, composed of three mutually perpendicular axes. We, as human beings, are all three-dimensional objects."
"Very good. Colorful three-dimensional objects make up this complex world. They can be as thin as clouds or as strong as iron. There are also chemical and physical laws that are born on the basis of all this. Do you feel satisfied and proud of this?"
Cheng Xuyuan said: "Of course. Humans have spent tens of thousands of years evolving to the top of the food chain and have mastered the laws governing the operation of the world. Our lives have been getting better and better, so we certainly have the right to be proud."
Xie Feng shook his head and smiled: "Your pride ultimately comes from your ignorance."
Cheng Xuyuan was stunned for a moment, and then Gu Bichen said, "Because there is a world with higher dimensions."
Xie Feng turned around and drew two simple figures on the blackboard. He pointed to the figure on the left and said, "This is me one minute ago."
Then he pointed to the little man on the right and said, "This is me now."
He drew a line between the two little men: "We have been living in the same space since we were born. We often say 'as time goes by', which actually means that we are moving forward along the timeline, and this timeline ..."
Xie Feng pointed to the line between the two little men on the blackboard: "That's the line in the four-dimensional space. In other words, we in three dimensions have been moving forward along the timeline in the four-dimensional space."
"As mentioned before, two-dimensional creatures can only see the cross-section of three-dimensional objects. As three-dimensional creatures, we can only see the cross-section of four-dimensional space. Therefore, we cannot see the past or the future. We can only see the world at this moment. The great physicist Einstein once described the fourth dimension as time, from which he derived the concept of "space-time". As three-dimensional objects, we exist in the four-dimensional world, but our position is not high enough, so we cannot see the whole picture of this world."
"So you think that just because humans are at the top of the food chain, you think you control the entire world? What you can see with your naked eyes is just one side of the multidimensional world, nothing more."
The clear questioning voice made the scene fall into silence.
Gu Bichen said: "Using mathematical methods, scientists can find many characteristics of high-dimensional objects and even successfully prove some conjectures by using dimensional transformation. However, so far, we still have no way to fully understand and imagine the full picture of the high-dimensional world."
Xie Feng raised his eyebrows with approval in his eyes. Although Gu Bichen was not as good as Shen Youan and Liu Runxi, he was humble, studious and diligent in thinking, which was very good.
Yuan Tingfang looked at Gu Bichen with a bit of admiration, as he was the only one who could follow Teacher Xie's train of thought. "If we were creatures in four-dimensional space, we could see ourselves in the past, present, and future, but there is only one timeline. So now, based on the four-dimensional timeline, I will add another timeline to intersect with this timeline."
Xie Feng drew another cross line on the blackboard representing the fourth dimension.
"If countless time axes are combined, they will form a time plane, which is the five-dimensional space."
All the students listened attentively.
"For example, you were born, went to primary school, and now you are a member of the Young Talents Class. In the four-dimensional space, you can only see yourself on the timeline from birth to entering the Young Talents Class. However, suppose you dropped out of school after graduating from junior high school to work, and now you are an assembly line worker in a factory. Then this assembly line worker is you on another timeline. In the five-dimensional space, you can see yourself in the Young Talents Class, and you can also see yourself as an assembly line worker. In the five-dimensional space, you can see the different branches of your future under different choices."
Cheng Xuyuan said excitedly: "The movie Interstellar uses five-dimensional space to travel through time. Teacher Xie, is it really possible to travel through time?"
Shen Youan's eyes were deep as he quietly watched Xie Feng speaking eloquently at the podium.
Xie Feng said slowly: "In four-dimensional space, time is linear, and its direction and progress cannot be changed. Theoretically, only in five-dimensional space can the direction and progress of time be changed."
Xie Feng picked up the piece of paper he had used for the ant experiment and rolled it up into a cylinder. "We just talked about the wormhole theory. It is considered to be a space-time tunnel connecting two different dimensions and different regions. Through the wormhole, you can reach the overlapping side from one side, which is the space-time travel in the science fiction movies that Cheng mentioned just now. Theoretically, it can be realized and presented in a surreal film style to bring everyone a novel experience. However, the concept of wormhole was first proposed by physicists Einstein and Rosen in the general theory of relativity more than a hundred years ago. They believed that through the method of curvature of space-time, the curvature of space-time can be achieved, thus forming a wormhole. The scientific community has been conducting research and discussion on the theory of using wormholes for space-time travel. More than 30 years ago, famous physicists Michael Morris and Kip Thorne proposed the theory of time machine. If we can control the position and time of entering and exiting the wormhole, we can achieve space-time travel through the wormhole, thereby realizing travel to the past or future."
Everyone listened with great interest.
"Although the theoretical concept of a time machine is very interesting, its realization faces great difficulties and technical challenges. First, the stability and existence time of the wormhole itself is a difficult problem. Current theories believe that the wormhole may continue to shrink and eventually disappear due to quantum effects. Secondly, in order to realize a time machine, we need to control the entry and exit of the wormhole, which requires huge energy and technical support. Thirty years ago, a physicist proposed a feasible model of a wormhole..."
Having said this, Xie Feng paused obviously.
In the spirit of seeking truth from facts, Cheng Xuyuan asked relentlessly: "Who is this physicist? What is this model?"
Xie Feng said gently: "If you are interested in this theory, you can go to the school library to check the information. Remember to bring your student card. You have more access rights than ordinary Naruhito students."
It can be said that Naruhito's library has collected all the precious documents in the world. This is a resource monopoly. Naruhito's students have won at the starting line from the very beginning. However, some more advanced academic and documentary materials cannot be accessed without a certain identity and level.
Cheng Xuyuan wondered why Teacher Xie avoided his questions. Wasn’t his question worth answering?
"The vastness of the universe, the minuteness of particles, the speed of rockets, the ingenuity of chemical engineering, the changes of the earth, the mysteries of biology, the complexity of daily life, mathematics is everywhere. This sentence comes from the mathematician Hua Luogeng. I hope that everyone will not be arrogant or impatient on this path in the future and create more possibilities."
Xie Feng glanced at the time and realized it was already noon. "get out of class is over."
After Xie Feng left the classroom, Cheng Xuyuan asked Gu Bichen, who was sitting next to him: "Student Gu, who is the physicist who proposed the wormhole model that Teacher Xie mentioned?"
Gu Bichen was influenced by the academic atmosphere since childhood. He knew everything from astronomy to geography.
Gu Bichen's eyes flickered slightly, and after a moment's deliberation, he said calmly, "Yu Yisen, Professor Yu, he is Professor Michael's student. Professor Michael's research team abroad has been studying the direction of space-time physics."
When Shen Youan heard the name, he lowered his eyelids slightly, hiding the emotions in his eyes.
Cheng Xuyuan murmured, "Professor Yu Yisen, what achievements has he made in scientific research? Why haven't I heard of his name before?"
Gu Bichen turned his head and looked at him, sighed, and shook his head: "There are some things you'd better not know."
Cheng Xuyuan scratched his head. "What? It's like a riddle. If you don't tell me, I'll go to the library to check it out. If the time machine is really successfully researched, it will be so amazing. Wouldn't it mean that I can go wherever I want? It's even more powerful than Doraemon's treasure bag."
Liu Runxi gently tapped on Shen Youan's desk. Shen Youan was immersed in his thoughts and did not come back to his senses.
Liu Runxi narrowed his eyes and glanced at Gu Bichen calmly. He was not in a hurry and waited patiently.
Shen Youan came back to his senses from his thoughts and looked up at the handsome young man standing in front of him.
Liu Runxi's eyes were filled with smoke, and he was indifferent and elegant. "Let's go eat."
Shen Youan put the pen into the pencil case, "Okay."
The other people in the class just watched the two of them leave one after the other. They acted generous and relaxed, and there was nothing much to say. They just silently added in their hearts, "They're a good match."
What else can I say? They are not gossipy little girls. They don't have to think about that when young men and women walk together. Teacher Xie just taught them that vision limits thinking, which is called ignorance. The good thing about the top students is that they can draw inferences from one example and correct their mistakes.
Gu Bichen chased after them naturally: "Runxi, An'an, wait for me."
Yuan Tingfang gritted her teeth and unconsciously drew a cross on the draft paper, with such force that it went through the back of the paper, as if she wanted to cross someone out.
Leng Yunyang observed this scene, raised his eyebrows slightly, threw his coat over his shoulders, and went out humming a song.
"Hi beautiful lady, may I have the honor of having lunch with you?"
When Leng Yunyang met Jiang Yumo who was walking from the other direction at the door, his romantic nature was revealed.
Jiang Yumo avoided him like a snake or scorpion, quickening his pace to leave him behind.
"Master Leng."
Yuan Tingfang came over with a smile, "I'm very familiar with Deren Middle School. Let me lead the way for you."
Leng Yunyang curled his lips: "Forget it, I suddenly have no appetite."
After saying this, he walked away with a swagger, and the last look in his eyes seemed to be full of disgust.
Yuan Tingfang's face turned blue with anger.
If it weren't for the fact that he was the heir of the Leng family, she wouldn't bother with this peacock. (End of this chapter)
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