In addition to Sihan, Grandpa Kong and they often come to visit the door, and the number and frequency of the visit make me very unaccustomed. It's okay, and I send some gifts every time, so I don't know what to do. I asked about this situation, and she laughed at me. Let's see if you're usually very smart, why are you confused this time, our ancestors on the earth are very particular about courtesy, they just like to give gifts when visiting others, unlike us modern people who don't have the concept of giving gifts. Even so, I didn't expect to bring gifts when I visited Grandpa Kong, after all, in modern society, except for some special occasions or time points, no one will give any gifts when I visit others, and it is still difficult for me to change this habit.

One day, I was talking with Grandpa Kong and Sihan about some of the conditions of the earth in ancient times at the Lanyue Restaurant, and I, who is also interested in history, listened with relish. I received a lot of information about the earth in ancient times, and I recorded it as I listened. I find this information completely undocumented in history particularly interesting. For example, the details of the formation of a unified Earth Alliance are eliminated by each country on the earth, and the disposal of people's former homes when the population is decreasing. Speaking of the state of the earth a thousand years ago, Grandpa Kong's living history of that era is better than any historian.

"Tick! Backbite! The transmitter rang again, and when I saw it, it was from Yun Hao, and it said, "Where are you?" Something important is looking for you! ”

I'll get back to you right away and let you know where we are. Yun Hao has deliberately transferred from the Ancient Cloud Continent to work in Lingzhou since I disappeared, and he is currently engaged in mecha improvement work at the Lingzhou Institute of Mechanical Sciences. I was especially touched by the fact that during the period of my disappearance, he spent a lot of energy to find the reason for my disappearance, trying to find the answer from the source. Of course, the result was a disappointment for him. Yun Hao came over not long after, and sat down as soon as he greeted Grandpa Kong and Sihan, still panting slightly.

"What's the hurry?" Seeing my friend in such a state, I couldn't help but be a little curious.

"The mecha is going to be overhauled!" Yun Hao looked at me, and after only spitting out six words, he was in a hurry to find something to stuff into his mouth, as if this trip had consumed too much of his energy.

"Oh! What overhaul? "I suspect I've heard it wrong, if it's a mecha improvement, I'm not surprised!

After eliminating some food, Yun Hao smacked his lips with satisfaction and said: "It's basically confirmed, it will be announced soon, and the Eighth District Security Department of the Alliance will hold an indiscriminate mecha competition." Anyone can design a mecha to participate in the competition, and in the end, they will learn from the advantages of the participating mecha and improve it, and I am ready to participate. ”

"Yes! Then this mecha may really have a big change! "Although I have always had the idea of improving the mecha, the Alliance's action this time is still a bit big, and generally the mecha are designed by professional organizations, and the improvement is also carried out by them. It's surprising that anyone can now participate in the competition, and it's clear that they want to attract the specialties of various mechas.

"How big can you be?" Grandpa Kong was also very enthusiastic about this, in fact, this is also my question.

"There are no restrictions on participating mechs except that they cannot exceed 3 meters in height. After all, the mecha we are talking about now are all small mecha used as infantry, not medium and large mechas. Yun Hao explained.

"Tell me the details!" I put my chin in my hands, as attentive as a student listening to a teacher's lecture.

"The maximum number of mecha for each team in this competition is 15, and the number of mecha participating in the competition can be 15 for those who are not specialized in mecha design or manufacturing, and the maximum number of mecha for professionals is 9. The competition is divided into preliminary rounds and semi-finals, and the competition method of the preliminary round is to participate in the way of two-by-two lottery battles, and whoever cripples the opponent's mecha first or admits defeat will be considered a winner. A total of 32 teams will enter the final semi-final, and the semi-final will divide the 32 teams into eight groups, and the group will face off against each other, and the winning group will receive the best battle award. Or an award is the best design award, but it is not necessarily awarded to the champion, it is awarded to the most creative and reasonable designer. ”

Yun Hao looked at us while explaining, especially in the face of the old and the young, he also lowered the speed of his speech, for fear that they would not understand. But those who don't understand still don't understand after all. I also nodded secretly, it seems that the alliance has really made up its mind to make a big change this time, otherwise there will be no best design award in addition to the best combat award.

"Brother Jingtian! Can you tell us more about the structure and function of the mecha? I still don't quite understand what a mech is. Sihan's eyes flashed with fascination, and his face was full of anticipation. Yun Hao and I looked at each other and smiled, for the ancients, they really didn't know about modern mechas, and it seems that they still have to explain it well. I motioned to let Yun Hao, a mecha expert, tell the story, and Yun Hao didn't shirk it and explained.

"The mecha we're talking about now are all used for combat, and robots that do everyday business don't count. The mecha is mainly composed of five parts: the observation and sighting system, the central control system, the energy supply system, the weapon system, and the walking system. Most of the mecha designs are similar to us humans themselves, so they are also called humanoid mechas. Its head is the sighting system, which is generally composed of three telescopes arranged at 120 degrees, so that there is no blind spot at any time, unlike us humans who can only see ahead. It can also rotate horizontally, and if the one in front of it is broken, it will rotate automatically, and it is generally the first priority to ensure the observation of the field of view ahead. At this time, the rear will not be able to observe from time to time for the time being, but the situation in the rear will be observed every once in a while. The entire sighting system can also be raised like a periscope, unlike us humans who have to risk our lives to stick our heads out when observing the enemy's situation, and even if it is attacked, it will at most be damaged by the telescope! That's much better than us humans. The telescope usually has an arc-shaped protective cover on the outside, and although this protective cover is very strong, it still cannot block the laser irradiation. ”

Sihan nodded while listening, his eyebrows stretched for a while, and converged for a while, he was a very good listener. And Grandpa Kong also listened attentively to things that he was not very familiar with, and he could only be regarded as a qualified listener in comparison. Looking at the focused appearance of the old and the young, Yun Hao was quite satisfied with his story.

"Its central control system is located in our human lungs, and if this part is damaged, it loses its life, so this part is also constantly attacked, and it is the component that wears the most. The largest energy supply system occupies all the space of the entire torso except for the central control system, and if this part of the mecha is damaged, it still has a certain ability to move, depending on the damage. The energy storage medium is a high-energy optical pool, and because it is white, we call it white crystal. ”

"Huh! Scold! Sihan suddenly laughed for some reason, and the bright voice turned our attention to him.

"What's wrong?" I was puzzled.

Sihan also felt a little out of shape, covered his mouth and said, "I think there is someone named Bai Jing, is there also a name for Huang Jing!" ”

"Citrine! Yes! Yun Hao smiled dumbly: "The color of the high-energy light pool of the laser gun is yellow, so it is called citrine." ”

"Ahh There's really citrine! This time it was Sihan's turn to open his mouth wide in surprise, and he could stuff it into a bottle.

Everyone burst into laughter, and Yun Hao easily stopped and continued: "Mecha generally has two hands and two legs, its legs are the same as us humans, and there is still a little space in the legs that is used as a storage box, in addition to storing the indispensable accessories of the mecha itself, it can also be designated by the commander of the mecha to carry some items. ”

Yun Hao basically introduced all the situation of the mecha, and immediately stuffed something into his mouth after finishing speaking.

"Then these mechs can only walk on two legs!" Sihan rolled his eyes and asked another question.

"Oh! It has a jetpack on its back and can fly for short periods of time. Sihan nodded, looking like this was right.

"And what weapon does it use?"

The little guy has a lot of problems, this time it's my turn to explain, I introduced the weapons of the ordinary one, two, and three machines, and finally said: "The weapons of ordinary humanoid mecha are like this, and nothing has changed for many years, and the alliance should want to find some good ideas that are conducive to improving the performance of mecha through this competition." In the light era, those who are engaged in mecha design may be bound by habitual thinking for too long, and they don't know where to change if they are asked to improve, but some people who are not specialized in mecha design may have new ideas. ”

"yes!" Grandpa Kong nodded and made a rare sound, looking at Sihan on the side and showing an extremely pitiful smile: "Habitual thinking is sometimes really deadly, Sihan has been very interested in new things since he was a child, his ideas are sometimes unconventional, very creative, or he has the potential to be an excellent scientist, but he is really trapped in Green Star and has not been able to learn modern knowledge systematically." If he is given time to study systematically, he may be able to make his own suggestions for many of the current practices. ”

"Oh!" Yun Hao and I looked at each other, and we both saw doubts in each other's eyes, is this kid really as creative as Grandpa Kong said? But even if there is, it will only be done after he has mastered some relevant modern knowledge! Looking at Sihan now, he looks like he is a matter of course, and with his still immature face, it looks both cute and ridiculous.

Looking at his appearance, I wanted to frustrate his spirit, and said, "Based on the structure of the mecha I just told you, what do you think is the biggest problem with the mecha at present?" ”

Sihan rolled his flexible eyes, but instead of showing the timidity we wanted to see, he said, "Hey! Hey! smiled, narrowed his eyes at me and said, "Brother Jingtian, do you really want me to say it?" ”

I nodded, not believing what he could say. Unexpectedly, he opened his mouth and spat out four words, almost startling me.