A high-dimensional space exists......

Han Qiu couldn't help but be a little shocked, although he had watched Interstellar in his previous life, it was only a movie after all, and he still couldn't understand what kind of existence the high-dimensional space was.

"Headmaster, what exactly does the high-dimensional space look like?" Han Qiu wondered.

"Didn't you create a five-dimensional space in the outer space zone?" the headmaster asked rhetorically.

"That's just my imagination, and I don't know what the real five-dimensional space looks like..."

"Hehe, I told you this, and you don't understand. The principal said, "In fact, theoretically speaking, the high-dimensional space is hidden in the universe, but we can't see it. ”

"Uh....." Han Qiu looked confused.

"What dimensions do you think the world we live in?" asked Xiao Zhang.

"Three-dimensional. ”

The principal nodded, and shook his head again: "That's not complete, we live in a three-dimensional space, but we also live in a four-dimensional space-time. ”

"Four-dimensional?" Han Qiu was even more confused, "Isn't this three-dimensional, how can it become four-dimensional?"

"Pay attention to my rhetoric, space and space-time! Take this room, for example, it's three-dimensional space, to be precise, it's four-dimensional space-time!"

"Uh.... And what is one dimension?"

"Time!" the headmaster smiled, "Time is also a dimension, but a pseudo-dimension, and its units are different from spatial units. So it can be attached to any space. We live in three-dimensional space, and when we add time, we become four-dimensional space-time. ”

"Oh~~~" Han Qiu understood a little, "Does it mean that if the anime is a two-dimensional space, plus time, it becomes a three-dimensional space-time?"

"That's pretty much it. The principal nodded: "Time is an indispensable dimension of space, without time, space is static. Like you said anime, without time, it's the equivalent of a pause. ”

The principal continued, "The anime characters on paper are two-dimensional creatures living in three-dimensional space-time, and we humans are three-dimensional creatures living in four-dimensional space-time. ”

Three-dimensional biological .....

Hearing this, Han Qiu always felt a little weird. A three-dimensional creature yourself?

Suddenly, he thought of something, his face changed, and he exclaimed: "That.... Could it be that there are higher-dimensional beings, such as four-dimensional beings living in five-dimensional space-time?"

The principal looked at Han Qiu in surprise, but he didn't expect this kid to think of this.

"This is theoretically possible, but there is no actual evidence. "No one knows what form a four-dimensional creature exists in, and even if it does, even if it appears in front of you, you can't see it." ”

Han Qiuhu looked at the principal suspiciously, Nima, I'm not blind, how could I not see?

Seeing Han Qiu's expression, the principal knew what he was thinking. "Hehe, don't believe it, I mean it, even if a four-dimensional creature appears in front of you, you can't see it. ”

"I don't believe it. ”

The headmaster was not in a hurry, and slowly explained: "Do you know what our three-dimensional space looks like in the eyes of two-dimensional creatures? It is a flat surface, and we humans are like a compressed pie in their eyes. They have no way of knowing what we humans are really like. ”

"In the same way, we humans look at four-dimensional creatures in the same way, and even if it appears in front of us, we have no way of knowing what it looks like. To put it simply, they don't just look at them. ”

The principal bit the word "look" very hard.

Han Qiu also understood a little, "Okay, but I still don't understand, why do we humans go to great lengths to think about these high-dimensional spaces. According to the theory, we are three-dimensional creatures, what do those high-dimensional spaces have to do with us?"

The principal glanced at Han Qiu: "You are a director, of course you don't care about this." Because we human beings want to use a unified theory or formula to explain all the natural phenomena that occur in the universe. But it can't be done now, for example, some theoretical formulas are applicable on the earth, but they are not applicable when they are put into wormholes. Modern physicists study high-dimensional space in order to explain all of this with a unified theory, so that the same formula can be applied in all environments. ”

The principal said word by word: "In the eyes of these physicists who study high-dimensional space, they believe that only by standing in the highest dimension of the universe can there be a formula that can solve all natural phenomena. Some formulas don't work for wormholes because the level is too low. ”

The principal wanted to continue, but Han Qiu's eyes were already in gold.

Ahhh

"Stop, stop, stop. Han Qiu immediately shouted: "Principal, you don't have to talk to me about these things, let's talk about something related to the movie." ”

The principal was speechless: "Yes, I've said so much in vain. ”

Han Qiu was speechless, I had heard so much in vain.

"Headmaster, can you tell me about the fact that the protagonist of the movie changes history through the five-dimensional space, is it really possible?"

"Who knows? This kind of thing can only exist in science fiction movies at the moment, at least not in reality. The headmaster didn't completely dismiss Han Qiu, "But there's nothing wrong with the direction of your idea." ”

"In five-dimensional space, time is quantified into observable existence. Just like you wrote in your line, going up the mountain is going to the future, and going down the mountain is going back to the past. Perhaps, four-dimensional beings do have the ability to change history. The headmaster said, "If you think about it, you can't take it seriously." ”

"Oh. Han Qiu nodded.

As he spoke, the principal picked up a piece of paper, marked A and B at each end, and drew a line to connect A and B.

"Remember the script you wrote, right?"

"Of course I do. Han Qiu replied. In fact, after seeing the headmaster do this, he knew what the headmaster was going to do.

Isn't it just a wormhole folding jump?

"It's okay in your script, if there was a two-dimensional creature going from A to B, it would have to go this far. The principal pointed to the AB line segment, and then folded the paper at once, so that AB overlapped, and at the same time poked a hole in the overlapping letters with his pen. "But fold it up, through this wormhole, it's undoubtedly much faster, almost instantaneous. ”

"In the eyes of two-dimensional creatures, the wormhole is a flat hole, and in the eyes of our three-dimensional creatures, the wormhole is a ball. The principal glanced at Han Qiu approvingly, "The explanation of this in your script didn't misunderstand the audience. ”

"Huh. Han Qiu tugged at the corners of his mouth and laughed speechlessly.

"But have you thought about it...."

"What's that?"

"I mean hypothetical, hypothetical. The headmaster swallowed, he pointed to the paper and said, "Our three-dimensional creatures can distort and splice their space against two-dimensional creatures, so that they can go directly from A to B, and the four-dimensional creatures can also distort and stitch the space of our three-dimensional creatures." ”

Han Qiu nodded: "Yes, that's what I wrote in the script, the future human beings went to the high-dimensional space, created wormholes in modern times, and helped modern humans get out of trouble." ”

"Have you ever thought about it, the high-dimensional creatures created a wormhole in the past world to help the humans in the past get out of trouble. That is, they can distort not only space, but also stitching time. "This provides a basis for changing history and traveling through time and space." ”

After speaking, the principal laughed dryly: "Hehe, of course, this is just a hypothesis. Isn't there a lot of TV dramas that travel back in time to ancient times? Maybe this theory can give an explanation. These traversers may be high-dimensional creatures who help them behind their backs. ”

"Uh.... Headmaster, do you look at these things too?" Han Qiu looked stunned.

"I haven't seen it, I've heard a lot. The headmaster shook his head.

"This is also the same as the TV series, I heard some people say, doesn't it mean that you can't go back to the past? That changed history, wouldn't it have an impact on the present? This is a paradox!"

"Time and space! It's a combination of time and space!" The headmaster said angrily: "There are more than five dimensions in high-dimensional space? In the fifth dimension of space-time, time can be distorted. Just like your outer space zone, in the five-dimensional space, isn't it just a time point linked together? ”

"We three-dimensional creatures can only see a scene at a certain time, while four-dimensional creatures can see scenes at all points in time in the past and future. And what about the higher dimensions? Not only can they see all the points in time, but they can also see the points in time of other planes. ”

"That is, parallel space!"

The principal smiled and said, "Don't you young people like overhead and TV dramas? Four-dimensional beings can travel back and forth between the past and the future of a certain time and space. Higher-dimensional beings can walk in different planes, in the past and future of each plane. ”

"Perhaps, those who have traveled to the past, or to other parallel planes, which you young people call the Otherworld. I wonder it's those high-dimensional creatures who are behind it!"

Rumble!

Hearing this, Han Qiu's heart was shocked!

Grandma's, Lao Tzu is a time-traveler, and he has also traveled to a parallel world with a slightly different trajectory in modern times.

Damn, it can't be those high-dimensional creatures who did it, right?

Thinking of this, Han Qiu suddenly raised his head......