After analyzing and explaining in detail the information he had collected, especially the information about the forest, Qiu Yu entered the use of civilization points.

As expected, there were a number of new redemptions. After thinking twice, Qiu Yu exchanged for a first-order safe house. The description is simple - one-room dwellings scattered throughout the city.

Two hundred civilization points isn't cheap, but it's a solid lifesaver for those thousands of players scattered around the city. Players who are able to do so can also use these safe houses to increase the range of their activities.

Second-order safe houses still only cost 200 civilization points, which means that the functions of the houses are more complete and the number is more.

Qiu Yu hadn't even seen the effect of the first order, so naturally it was impossible to change to the second order immediately. As for other exchanges, on the one hand, they did not find the necessary ones, and on the other hand, because they were determined that there would be new exchanges in the future, there was a need to save civilization points.

There was still a little time before the end of the strategy meeting, and Qiu Yu had planned to talk to Nine-Tails and Li Ningfeng, but whenever his eyes swept over, Qiu Yan would keep pointing at himself.

Qiu Yu is proud, since he has made up his mind not to use any of Qiu Yan's strength, he will not trample on his determination at will.

But the ball of light, which should have tried his best to prevent the balance of the game from being destroyed, kept nagging in Qiu Yu's ear, asking him to support the work of Qiu Yan's memories, otherwise his work would not be easy to do, and if he was fired, he would no longer be able to shelter the earth and other nonsense. It seems that the pressure Qiu Yan has created on him is indeed quite large.

Qiu Yu thought about it and asked Qiu Yan two questions that he thought were insignificant, but very technical.

"What are scattering crystals and strong effect alloys?"

I don't know how much knowledge there is in the multiverse, and I don't know if the strongest computer in the universe has the ability to store that almost infinite knowledge and retrieve it in an instant. Anyway, Qiu Yan didn't take the time to reminisce about the problem at hand.

A polygonal diamond appears in front of everyone.

"This is a magnified scattered crystal particle under three-dimensional vision."

Qiu Yan waved his palm lightly, and the diamonds in the air quickly split into countless identical diamonds. However, in Qiu Yan's mouth, this is not a split, but a ......

"This is the inside of a scattered crystal particle in three-dimensional vision."

The split diamond is once again reduced to a single diamond.

"Now we see the interior under four-dimensional vision. Everyone, got it? ”

Li Ningfeng said honestly, "I don't understand." ”

Qian Xiao on the side also nodded quietly.

Seeing Qiu Yan's brows furrowed slightly, the ball of light hurriedly said, "Stupid, you don't understand it so simple?" What Sister Qiu Yan means is that scattered crystal particles are four-dimensional. From the outside, it looks like a small particle, but the space inside is very large in terms of three dimensions. The practical application is that the more condensed the laser attack, the higher the power, if it is launched as a three-dimensional weapon, it is only one centimeter in diameter at first, but after encountering scattered crystal particles, the energy will be dispersed to a range of ten meters, one hundred meters or even more, so that there is no power. However, although the energy intensity per unit area of the laser light is infinitely weakened by the scattered crystal particles, the total energy irradiated on the scattered crystal particles is constant, and even if a lot of it is scattered in other directions, it still retains considerable power. These forces can only be absorbed by the crystal particles themselves, which are externally three-dimensional. If the limit is exceeded, the three-dimensional state of the scattered crystal particle will collapse, and the four-dimensional state confined in it will instantly dissipate in space, resulting in physical destruction. Therefore, although not perfect, the scattered crystal particles are indeed the strongest defense means for mid-level civilizations against laser-type weapons. In addition, the best way to use scattered crystal particles is to disperse them directly into space to cover the targets that need to be defended. But limited by the high cost, generally

Scattered crystal particles are mixed with other transparent objects to make armor or walls. ”

Qiu Yan was a little confused, and it seemed that his words just now did not contain so many things. However, seeing that everyone had a look of sudden realization, she was no longer entangled, and began to answer the next question in the way of a ball of light.

The diamonds in the air faded into a huge metal ball several meters in diameter.

"It's normal metal."

Qiu Yan's palm was weak, and the metal ball with a diameter of several meters became only the size of a ping-pong ball.

"The strong effect is a misunderstanding of this phenomenon in intermediate civilizations, and the correct name should be string vibration...... Woooooooo ”

The ball of light once again covered Qiu Yan's mouth, "As an excellent reminiscence, you can only answer the questions raised by others, and you can't just deny it. ”

Qiu Yan hugged the ball of light into his arms, tilted his head and thought about it, and agreed with this statement, but still clarified the premise first, "In the eyes of intermediate civilizations, the four basic forces can be transformed into each other. Among them, the intensity control of the intermolecular electromagnetic force achieves a similar effect of strong interaction. However, the object of the strong interaction force is hadron and quark, while the strong effect is the controllable weakening of the strong interaction force, which is only aimed at the gaps between molecules or atoms. ”

The metal ball in the air instantly disintegrated into a mist.

"The essence of reducing voids is to increase the density of matter per unit area. Aluminum alloys that have been strengthened can easily cut through titanium alloys that have not been hardened. However, the disadvantage is that the great quality is difficult to put into practical use. Building a starship in the universe doesn't have much effect, but on the ground, if the increased mass and strength is not great, it might as well be replaced by other ordinary metals. However, if the increase is too large, it will bring a lot of inconvenience. In order to solve this problem, the intermediate civilization uses an element numbered 311, which has anti-gravity properties. ”

In the metal mist in the air, some different colors of fog appeared.

"As long as element 311 is added to the strong effect metal, its mass will be greatly reduced according to the proportion. When the proportion of element 311 exceeds half, the mass of the strong effect metal will be infinitely close to zero. But in doing so, the metal structure will collapse. Therefore, intermediate civilizations will control the ratio of substance 311 to strong metals as necessary. ”

The mist mixed with Element 311 recondensed into three metal balls in the air.

"Civilizations that use element 311 will set a scale standard. The use of this standard ratio is generally referred to as a standard strong effect alloy. It is mainly used in industrial and military applications with high requirements for the standardization of goods. In the standard proportion, adding more 311 elements and sacrificing strength to reduce the mass is called a lightweight strong effect alloy, which is mainly used in construction or small parts. With little or no 311 elements, it is a strengthened strong effect alloy. With the exception of a small number of special uses, it is mainly used in the construction of starships. After all, there is no need to worry about things being too heavy in the universe. ”

The three orbs of metal vanished, revealing a large circular profile with ring-like traces of trees.

"Strong effect technology is an important indicator to measure the degree of development of an intermediate civilization. Civilizations that have just entered the intermediate level have only 2 to 10 times the proportion of strong effects of the universal type. After that, the compression capacity that can be carried out by the strong effect will gradually increase as it develops. When entering the super civilization, it will reach the level of real strong interaction force, and create a strong interaction force matter with a degree of compression at the quark level. Its main application is ......"

The ball of light suddenly shouted, "The strategy meeting is coming to an end. We use this last time to give a round of applause to the excellent reminiscences who have perfectly answered everyone's questions. ”

Except for Li Ningfeng, who responded to the call and applauded, everyone else ignored the ball of light for various reasons.

However, Qiu Yan was quite easily satisfied, and happily accepted the applause of only two people.