Provincial capital, academician community.

In February, the heating in Horryen's house was also turned on sufficiently, and it was as warm as spring.

As a city that has long been classified as a southern city, the provincial capital has not been heated for the past few decades, but with the completion of controlled nuclear fusion, the use of waste heat has allowed the provincial capital to have a heating system for northern cities.

At present, the International Energy Organization has reached a consensus that the controllable nuclear fusion power station on the earth should be dominated by deuterium-tritium fusion reaction, supplemented by helium triple reactor.

The premise of this consensus is that, on the one hand, deuterium-tritium fusion has made a huge breakthrough in tritium breeding, reaching a self-sustaining recovery rate of more than 99.8%, and more importantly, because helium is currently the only fusion fuel for space travel - compared with deuterium-tritium fusion engines, it is not only cheaper, but also safer, and more suitable for building power stations in space.

After all, helium triple fusion can be done without boiling water.

Therefore, the utilization of waste heat from deuterium-tritium fusion reactors is a very important topic.

Old man Huo Laien took the fruit plate handed over by his wife, and then put it in front of Ye Ming: "Come and taste it, this is a fruit grown with reactor heat." ”

There were mangoes, grapes, bananas and other tropical fruits in the fruit bowl, Ye Ming smiled and picked up a grape and put it in his mouth: "Well, it's quite sweet." ”

"I heard that there is also a fruit planting base on the Asterisk?"

"Yes, there are not only fruit planting bases, but also breeding bases."

"Hmm......" Professor Huo Laien hummed, and then looked at Ye Ming with a smile. After the latter ate a few grapes, he said softly: "If our theory is correct, we can disguise three-dimensional solid matter as information, although it can achieve accurate instantaneous communication in artificial wormholes, but it still can't hide the fact that we can't get rid of wormholes." ”

Ye Ming picked up another banana and nodded slightly.

"I share your view of what's behind the wormhole." Professor Holion was silent for a few seconds, then said with a little seriousness: "We really can't expect that every wormhole we make a space-time jump is safe behind it, or there is no civilization, or civilization is terminated. ”

Ye Ming hummed again.

Professor Hollyon pondered for a few seconds and continued, "We are now trying to confirm whether time makes sense in the high-dimensional space. It's a pity ......."

Ye Ming immediately said, "I can't be sure." ”

"Yes, can't be sure. But what do you tend to think? Old Man Huo looked at Ye Ming, his eyes full of anticipation.

Ye Ming put down the banana and frowned slightly.

Before returning from the Space City, he was invited to his home by Old Man Huo, and he must have known that this old man had something to discuss with him, or a problem to discuss with him.

Moreover, he could probably guess what the old man was thinking.

In the past few years, the old man has been committed to the research of high-dimensional space - to be precise, the old man has been thinking about establishing a coordinate system between different dimensions, and even he is still lamenting that if he can do it in his lifetime, he will die without regrets.

Don't underestimate the establishment of this coordinate system between different dimensions - it is not a purely mathematical model, but a theory with practical significance, even great practical significance!

Because once the coordinate system is established, it means that the position can be moved instantaneously through the operation of ascending and decreasing the dimension.

But until then...... The meaning of time needs to be determined.

At this time, Professor Penny walked into the living room with two cups of tea, and saw that her husband and Ye Ming were a little anxious at the same time, Professor Penny smiled slightly, put down the teacup and sat to the side.

"What kind of problem can stump Professor Ye Ming?"

When she interrupted, Ye Ming also raised his head, thanked him and glanced at Old Man Huo and said with a smile: "The professor gave me a problem, he wanted me to design a device that could teleport to any location." ”

Professor Penny is an economist and knows nothing about theoretical physics, so she was stunned when she heard this, and then looked at her husband: "Your physics has developed to this extent?" Is teleportation similar to the world of Harry Potter? ”

"Hahaha, of course not!" Old man Huo Laien laughed: "We have a theoretical basis!" ”

Ye Ming also smiled, he saw that Professor Penny was confused, so he picked up a blank piece of paper under the coffee table. Seeing this, Professor Hollyon immediately pulled out a pen and gave it to him.

Ye Ming quickly drew a small dot at one end of the white paper, and a circle at the other end.

"Professor Penny, look, let's assume that this side of this blank sheet of paper is a two-dimensional world. And this point is the spaceship of the two-dimensional world, and its destination is this circle. ”

Professor Petunia nodded, "According to the principle of the shortest straight line between two points, it can move over at the fastest speed if it maintains a straight line distance, right?" ”

"Yes. But how fast is this fastest speed? Ye Ming looked at Professor Penny with a smile.

Professor Petunia was slightly stunned, looking thoughtfully at the blank paper.

"The speed of this two-dimensional world is up to us – for now, I'm going to stipulate that it can't move more than 0.1 centimeters per hour."

Professor Penny hummed lightly, and immediately looked at Ye Ming: "This corresponds to the speed of light in the three-dimensional world that cannot be surpassed?" ”

Source change app】

"Yes." Ye Ming nodded with a smile: "Back to the paper, we now visually measure the distance between the point and its purpose is twenty centimeters, then its minimum time is not less than 200 hours." ”

"Now, how many ways do we teleport this point to its purpose?"

Professor Penny was stunned again, she was also a professor after all, and her husband was also a great physicist, how could she not understand it at all, and immediately picked up the white paper when she heard this, bent the paper, and aligned the small dot with the circle.

"Won't that be instantaneous?"

"That's right!" Ye Ming laughed: "This is the model of the wormhole, the space is curved." ”

"Hmm......" Professor Petunia knew that this was clearly not what the two were talking about, when she saw her husband looking at her with a smile on her face. But after thinking about it, she still gave up: "What else is there to do?" ”

"Another way is that we put this point ...... Pick it up. ”

Ye Ming tapped the dot on the white paper with his pen, and then quickly dropped the tip of the pen into a circle twenty centimeters away.

"Just put it in again."

"That is, to upgrade the two-dimensional spacecraft to three-dimensional space, so that it does not follow the upper limit of the speed of the two-dimensional world, to be precise, the upper limit of space displacement, so as to move quickly in three-dimensional space, and finally return to the destination of the two-dimensional world."

Professor Hollyon added: "What we are talking about is that we are going to send the three-dimensional spacecraft to the fourth dimension, and then return to the designated location in the third dimension. ”

Professor Penny: "What's the difficulty now?" ”

"There are two difficulties now, the first is that we are not sure whether the time of the four-dimensional space has nothing to do with the three-dimensional space, in other words, whether the spacecraft that enters the four-dimensional space can be dislocated in space in an 'instant'."

"The second is how we can determine that when the spacecraft comes out of the four-dimensional space, its position is the destination we want in the three-dimensional space."

Professor Penny: "...... Okay, you guys talk, call me if you need to. ”

Ye Ming and Professor Huo Laien glanced at each other, and then laughed.

……

"Professor, if you ask me, I tend to think that three-dimensional time is meaningless in four-dimensional space." After laughing, Ye Ming replied cautiously: "Or to be more precise, when a three-dimensional object is displaced in a four-dimensional space, the time of our three-dimensional world has no perceptual meaning. ”

Old Man Huo Laien was stunned for a moment, and then joy rose in his eyes: "That is, theoretically, as long as the coordinates are established, it is feasible?" ”

"Yes. Moreover, we also need to find a way to carry out the displacement in the high-dimensional space - the displacement brought by the thruster has no meaning in the four-dimensional space. ”

Professor Huo Laien nodded heavily, and looked at Ye Ming with burning eyes: "So, Ye Ming, what are you waiting for?" ”

——Years of research have made Old Man Huo know that he may be the person in this world who is most eager to figure out the dimensional universe, but ...... People who really have a deeper understanding of the dimensional world and are more able to look at their own desires......

He knew very well that this person should be Ye Ming.

The professor knows that time is one of the most irresistible physical essences, and in the past two years, as he has grown older, he has increasingly felt that he is unable to exert energy and thinking, so much so that he now often makes heuristic summaries at academic conferences.

And the one who comes closest to revealing the truth of the universe......

But he has always called himself an engineer......

Run to build some kind of space city, spaceship.

Yes, he admits that these make sense.

But is it more meaningful than figuring out the truth of the universe?

Isn't that a joke......

As long as Ye Ming was willing to focus on dimensional theory, he believed that maybe he would be able to see the day when the "teleportation magic" would be realized.

Meeting Professor Horryen's gaze, Ye Ming fell into a long silence.

After a moment, he exhaled slowly.

"Professor, I know what you think. But...... I'm missing tools right now. ”

"What tools?"

"A spatial gauge." Ye Ming bit his lip and said softly: "In the past hundreds of years, those ancestors have created countless classic spatial gauges for us to explain the world and refine theories...... But it also caused us problems. ”

"To unify coordinate systems in different dimensions, we need to establish a spatial scale that can adapt to any dimension." Ye Ming said and looked at Professor Huo Laien: "I once wanted to try, but first, my energy is limited, and second, I ...... It's hard to be engineered, so I'm hoping to find inspiration from an extraterrestrial civilization. ”

"Now it seems that the civilization of the Blue Star ...... Perhaps this level of knowledge has not been touched. ”

"You've actually completed the scale of the four-dimensional space, right?"

"Yes, but it can't be used in three-dimensional space at the moment." Ye Ming nodded and said regretfully: "Now I lack the parameters to be transmitted. ”

What the old man thought, of course he thought about it.

But as the old man said, this kind of artificial wormhole still can't get rid of the upper limit of the speed of light and the wormhole that exists in reality.

And those naturally occurring wormholes...... It's dangerous.

Don't look at the exploration of the blue star is in full swing, and even a manned scientific expedition team has been dispatched.

But everyone knows that this is actually a risk - the bet is that "the cannonballs will not land in the same crater", destroying the civilization of the Blue Star, and not coming back to take a look at it when the humans arrive at the Blue Star.

However, what if?

Therefore, now the Dalian shipyard is building a star finder that can generate a high-dimensional space membrane at full capacity, which is used to plug the wormhole of the galaxy where the blue star is located.

Anyone who has played RTS games knows that the first thing to do when opening a mine is to block the road first.

While space exploration isn't a game, defensive thinking is the same.

So...... If the technology of "full map transmission" can be mastered, it means that humans will no longer have to worry about frequently crossing wormholes or facing unknown wormholes.

The idea of "artificial wormhole" that he proposed in the space city before is already an unimaginable "great prospect" for ordinary people.

But if such an arbitrary coordinate transmission could be realized, it would be ......

The ultimate ultimate dream!

"Moreover, I also believe that if we want to establish the coordinate system of the entire universe, we must first figure out our universe. Right now, we don't even have a model of our universe. How can coordinates be established? Ye Ming exhaled again and looked at the white paper on the coffee table.

A dot and a circle on the white paper are exceptionally clear and clear at a glance.

"Perhaps only by standing in a higher dimension can we recognize our three-dimensional world."

Professor Huo Laien nodded silently, and then looked at Ye Ming: "That probe, maybe it's an opportunity?" Otherwise, how many more probes should we send to the higher dimensions? ”

"Hmm...... OK. Ye Ming paused: "If possible, maybe we can send a wormhole teleporter in." ”

Seeing that Old Man Huo's eyes lit up, Ye Ming immediately patched it.

"But not now!"

- Now that Director Niu is rushing to the provincial capital, I want to meet him in person and let him explain clearly in person how much money he still needs to prepare.

It's not that the money can't be spent, and I dare not spend it. But what does that mean? The landlord's family has no surplus food!

In recent years, countless huge projects have been launched, even if it is to liberate the productive forces, obtain the resources of the moon, and solve the energy problem......

But it still takes time to improve productivity.

And the improvement of productivity, in addition to the establishment of those great mega projects, but also reflected in...... Above people's livelihood!

You can't be so poor that the common people are 1b and still build in space, right?

It's okay in wartime, but it's not a threat now!

Therefore, Director Niu, or the highest decision-making level of the country and even the entire human race that he represents, is indeed a little anxious.

You say, how dare he make any promises to Old Man Huo.

And then...... Before leaving Old Man Huo's house, Ye Ming immediately received a call from Director Niu and asked him to wait for him in the office.