"In the past week, there is no word that is hotter than interstellar navigation and space folding. Even the front lines of Nia are not as noticeable as these two words. When people are extremely surprised, some people must always remain sober and rational, and objectively look at the advantages and shortcomings under the current situation, that is us."

"Before starting today's class, we start with interstellar navigation and space folding, and analyze the hidden dangers buried behind an optimistic mood."

Wu Chen, like an ordinary college student, chose a front seat in the staircase classroom with textbooks and notebooks. The old professor who was teaching the lecture glared at him in dissatisfaction, then ignored him and continued to face the circular staircase classroom and talked freely.

"The practical application of space folding has been successful. People seem to have entered the interstellar era at once, and the calls for entering the Milky Way are rising one after another. So why, for the past week, the official attitude has been calm and has not announced the ambitious interstellar navigation plan? Only one Mars development project has entered the formality?"

"The reason is inseparable from our courses, that is, we are currently facing a huge shortcoming - materials!"

"Why do you say that?"

"Students who are paying attention to that practical application experiment may remember that the output power of the nuclear fusion reactor exceeded the maximum volume of the magic matrix unit, and the energy overload reaction reached 500%. Under normal circumstances, this experiment has failed here. The essence of gold and mitrene that constructs the magic matrix will definitely be ablated, and the planarization energy used for two points will definitely overflow. Under the chain reaction, other mechanisms inside the spacecraft will definitely be destroyed by huge energy..."

"Why does this cause?"

"The reason is that the purification of two special substances, the essence gold and Mithril, has been unable to achieve a breakthrough!"

Wu Chen wrote down three keywords in his notebook, namely gold, mitral, and purification, and then looked thoughtful.

"Yes, these two special substances are fundamentally different from our Earth's original matter. The smallest unit that constitutes them is not the arrangement of molecular formulas, but the solid state formed by energy combined with a special tiny molecule. Under a high-magnitude microscope, these two substances are in an energy-efficient fluid state. In this state, there are about 20-40% of impurities. These impurities are difficult to extract by current technical means. With the highest purity of only 80%, the magic matrix unit built in the integrated circuit mode, perhaps the size of a fingernail, integrates thousands of magic arrays. Just like ordinary circuits, huge energy flows through it, which will cause loss of unit area. Under the loss of energy and conversion, it can cause local huge high temperatures, which may cause burning and short circuits of unit circuits..."

"Why should I emphasize this point? It is because, during the process of space folding, the further the distance between the two points AB, the more huge energy is needed to act in the magic matrix unit. The three-dimensional space based on two points AB is to planarize the energy level. The farther the distance, the higher the energy and the greater the power... Look, everyone understands that under the existing purity of the pure gold and Mithril, it is very dangerous to fold space beyond safe power. This practical application is successful. What about the next time? What about the next time? It is important to know that the distance of the space folding this time is only 450,000 kilometers. It seems extremely far away, but it is only the degree that light can reach within 1.5 seconds. This is already the limit we can achieve with space folding technology!"

"Everyone with a little common sense knows that the highest folding distance of 450,000 kilometers is far from enough to support humans to enter the Milky Way. Even a thousand times or ten thousand times is useless. The minimum speed ruler for interstellar navigation should be positioned as light years, and now we can only be 1.5 light seconds!"

Wu Chen frowned when he heard this. He rubbed the sun with a headache, and felt very difficult for a moment!

His Majesty's power seems to be unable to solve this problem. He can produce 100% pure gold and mitral, but he cannot easily purify all the gold and mitral from the legal level.

His Majesty's power is not infinite, especially when His main realms and power are still limited to the situation of Nya.

"This is the huge shortcoming we are currently facing in the material field. Is this shortcoming only reflected in the folding of space?"

"No, no!"

"As we all know, those so-called interstellar spacecraft are still using backward rocket boosting to escape gravity. Do they do not have more advanced power engines? No, no, there are also controllable nuclear fusion reactors that can provide power far exceeding rocket engines. However, the alloys that build spacecraft cannot withstand such huge energy output, even the lowest power cannot do it!"

"Professor!" A student raised his hand and stood up to question after being allowed. "Two days ago, the latest space shuttle that the International Space Administration had announced had its power device seemed to have abandoned the rocket engine and directly used a nuclear fusion reactor as a reusable power. Moreover, it can directly locate the moon from the Earth base, and even without taking off, it can use the space folding engine to teleport from the Earth to the moon!"

The old professor smiled and signaled the students to sit down while explaining, "Space shuttle? I wonder if you have noticed that the size and volume of this space shuttle are good. With the reduction of volume and increased mass and density per unit area, this space shuttle can offset the huge stress overload of the nuclear fusion reactor to the maximum extent. But this space shuttle, which is only the size of a space shuttle, may be a space fighter or something like that. Can it serve as a huge transport aircraft and cargo spacecraft?"

"No, if the shortcoming of materials is not solved for a day, it will never appear."

"There are many examples like this. Now, our foundation in mystics is still too shallow and far from being able to rest assured. Students, don't be too ambitious. There are still countless difficulties ahead of you in the future. Okay, now we are in normal classes. Please turn to page 105 of the textbook. Today we are going to talk about the correspondence between magic materials and molecular formulas."

The buzzing discussion stopped, and a student seemed unwilling to accept it. Finally, he couldn't help asking: "Professor, can the interstellar voyage now be like a mirror or a moon?"
Chapter completed!