After Yan Xiu taught his master, the method of breaking the formation of Qingyun Dao Chief, Wu Xiaoqing temporarily gained some freedom. He was allowed to be followed by Yan Xiu and move around the Nine Heavens Island.

Nine Heavens Island is one of the outermost islands on the entire planet, and the sects around it are actually very rare. Because the main zone of electromagnetic wave transmission is the core of the planet, the "aura" here is a thin desire for immortal cultivators. On the one hand, this thinning greatly reduces the energy utilization rate of immortal cultivators, and on the other hand, it can be regarded as a natural defense - immortal cultivators rarely visit this kind of place if they have nothing to do.

This makes Wu Xiaoqing's safety a little guaranteed.

Wu Xiaoqing is now on the crust of this planet, and the crust here is not the concept of the earth's crust, but the shell in the real sense, the shell of the eggshell.

The entire planet, which is several times larger than the earth, has a shell that is only a thin layer of more than ten meters thick, and for a planet, this thickness is not even the concept of "shell", at best it can only be regarded as a membrane.

In fact, the entire shell is indeed membranous.

The material composition of these membranes is similar to that of the boundary material in the 3D projector before, but it is not identical.

Wu Xiaoqing is now standing on the edge of this membrane.

Although it is only a dozen meters thick, there are many layers in the middle of these membranes. Some of them are luminous, and they provide the light source that the planet needs on a daily basis. Looking out from the inside of the planet, it is blue during the day and stars at night - but according to Wu Xiaoqing's observation throughout the day, all he sees during the day is artificial light source, and only at night is real - this film will become completely transparent at night.

He could reach out and go through the membrane itself, and the membrane would not cause him any harm. He could even try to swim in it – and if he wanted to, even go through the membrane to the other side.

But Wu Xiaoqing definitely didn't dare to do this.

The flyers didn't dare to do that.

In fact, when Yan Xiu saw Wu Xiaoqing put his hand into the membrane, he would subconsciously worry about him and feel scared - in Yan Xiu's eyes, this membrane is the junction of the Ascension Realm and the Void Realm.

Although most of the legends of these flying people are nonsense, this statement is true.

The outside of the membrane is space, which is a complete vacuum, and people who go out without wearing spacesuits will naturally die very ugly because of the difference in internal and external pressure.

This time, the search and rescue team came to observe the state around the planet, which may be able to gather some information that is of positive significance to the mission.

Indeed, quite a few have been collected.

A very simple example - around this planet, the search and rescue team did not see the stars, not even the other planets. But there are very regular meteorite belts.

On the top of Wu Xiaoqing's head now, it is the light emitted by these meteorite belts. They were neatly arranged in the night sky, shining with a very faint light. If you don't have professional observation equipment, you may not notice at all. But when Wu Xiaoqing looked at these stars through the perspective glass, he was almost a little surprised.

There is a high degree of regularity in these meteorites.

It is like a pattern decorated on the surface of a building, showing a completely regular pattern. The spacing between each two meteorites is exactly equal, and their orbits are at the same distance. The relative velocity of each other is almost zero, but they are moving very slowly around their planet.

The absence of stars probably means that the original owner of this civilization has completely surpassed the stellar civilization, and the entire star has been demolished.

Yes, demolished.

According to the search and rescue team, in the universe, stars are like forest fires struck by lightning in the forest. Primitive people can rely on forest fires to occasionally eat one or two barbecued delicacies, but only the people who have really evolved to a certain level know how to preserve the fire, and even take the initiative to extinguish it when other fires appear around the living area.

The star is first present, then extinguished, its mass is split, and then dispersed for storage.

It's as if the earliest humans learned to cut wood, store the fuel, and light it when needed.

This method of dealing with the stars is a sign of an advanced civilization, just as the use of fire is a sign of a wild to a civilization. The principle is the same, as it means a high degree of control over the use of energy.

From Yan Xiu's memory world before, they had seen the appearance of the flying machine. According to the search and rescue team's guess, these vehicles should have automatically flown back from space, and the fuel he brought back was probably the mass of the stored stars. Strictly speaking, the planet should not shut down for a "considerable period of time" due to lack of energy.

Yan Xiu had never noticed that there were faint and regular "dark stars" in the sky, and they had only paid attention to those flashing, irregular natural stars at night.

It was only when he put on the glasses that Wu Xiaoqing gave him that he realized that there were so many facts around the world he thought he was familiar with, that he had never discovered.

The rumors are all false, and there is nothing left in the void.

There is no so-called higher cultivation of the immortals, let alone the immortals, in the entire Void Realm, there is not even a small island where you can rest. There was no man, no sword, nothing but darkness and the void.

"How's that breaking the formation going in your door?" When he returned to the Nine Heavens Gate, Wu Xiaoqing talked to Yan Xiu about the matter.

"Most of them have already been practiced, and the master said that we can leave at any time, but I still want to wait a few more days," Yan Xiu hesitated, "The master only asked us to take away two spirit stones, if it is just for self-protection, these two spirit stones are more than enough for me." But to protect Mr., I'm afraid I still can't catch it. ”

"How long will it take to set off from the Nine Heavens Gate to the Soul Examination Conference you mentioned?"

"If the journey is smooth, it only takes three days. But this is ...... all the way," Yan Xiu said, taking out a few small bean-like things from his pocket, placing a static three-dimensional topographic map in the air, and then worried, "The Nine Heavens Gate is a small faction in the borderlands, I'm afraid no one has heard of it, and there will always be some trouble when passing through the territory of other factions." ”

The search and rescue team asked again: "You said before that your master only asked you to bring out two spirit stones. I have checked in the Nine Heavens Gate before, and there are no less than hundreds of spirit stones of all sizes, so what's the use of keeping them? Why don't you go back and I'll talk to your master again. ”

"Sir misunderstood," Yan Xiu explained, "I said that the two spirit stones I said can only bring two full of spiritual energy. The spirit storage cabinet in the Nine Heavens Gate is limited, and no matter how many spirit stones there are, they can't be replenished, but they are no different from waste. There are quite a few disciples in the sect, and if an ordinary disciple wants to get a full spirit stone to use, he will have to wait for several months to get it. Compared with the two spirit stones and the others, it has been half a year of cultivation, which is indeed a lot. ”

The search and rescue team said: "Since you can bring empty batteries, then you can take more empty batteries with you, remember, the more the merrier." ”

Yan Xiu was curious about this: "I don't know what is the use of Mr. asking for so many ethereal stones?" ”

Wu Xiaoqing smiled: "Don't you remember the spirit storage cabinet in your sect?" Since you immortals can charge everywhere, why can't this spirit stone do this? ”

After all, people in this world subconsciously think about problems based on local thinking patterns. In his opinion, since the aura is "spiritual", it naturally needs something with a soul to capture, although the spirit stone is also stained with a spiritual word, but the essence is just a stone. A stone can store aura, which can already be said to be extraordinary, how can you "cultivate" aura by yourself.

But if the aura is really as Wu Xiaoqing said, it is an electric field everywhere, then Wu Xiaoqing's statement will naturally make sense. Whether it is people and stones, they are just supplemented by electricity, and there should be no difference.

Then why can't the spirit stone replenish the aura by itself, and it also needs to be specially put into the spirit storage cabinet - why can it be replenished in the spirit storage cabinet?

In scientific research, there is a saying that when a problem is discovered, it is not far from being solved.

Yan Xiu only knew the general principle from the search and rescue team, and he was already able to subconsciously start thinking about every detail of his original life. If he were given a hundred years, maybe the first scientist in the world would appear. Anyway, they have a long lifespan – which is an absolute advantage for doing research. Many things that originally sound incredible can easily become reality as long as you change the angle or think about it carefully.

For example, the spirit stone is automatically charged.

Shen Changwen has already determined the frequency of the electromagnetic field in this world through experiments. It took his Ph.D. supervisor more than two hours to solve a problem in the world that has existed for at least 1,500 years, and possibly more.

The principle of wireless charging is actually very simple.

On Earth, there are already similar products. However, it is only because this mode of electricity supply itself is not economical enough, or that it is not suitable for the living conditions on the earth, that it has not become a realistic mainstream electricity use scheme.

The main reason for limiting wireless power supply is that energy on Earth is too expensive – there is no way to produce energy from burning dead animals and plants to generate electricity. But this problem does not exist in this world, because here, energy is almost free.

A fusion reactor that has been in operation for thousands of years, and the energy in it is almost entirely free.

If energy efficiency is excluded, the other biggest problem facing wireless power supply for public use on the earth is that it cannot be charged.