On the way back, Wang Yong passed by Lei He's room, and saw that the oil lamps and torches inside were still on, Wang Yong thought to himself: "I guess this guy Reagan got Rook's notes and can't wait to start researching." Wang Yong smiled and pushed the door into Regan's room.

Lei followed Wang Yong in, put down the note he had just gotten and said, "You haven't slept yet?"

Wang Yong said proudly: "I am energetic now, and I will be fine if I don't sleep for a few days." But you, aren't you tired of traveling overnight? Studying the magic array can't be completed in a while, and it's not too late, right?"

Ray smiled and said, "Hehe, don't you know me? By the way, tell me about the Composite Magic Array. Wang Yong understands Regan's temper, as long as it is something he is interested in, he can last a few days without sleeping, and he must figure it out.

Wang Yong reluctantly relayed what Luke said about the compound magic array to Lei He, and also showed the two spatial magic he had learned.

After seeing this, Lei said excitedly: "I have now researched a few single magic arrays, if the method that Luke said is effective, we should be able to make a composite magic array that meets your requirements." ”

Wang Yong asked with a blank face: "What do I ask?"

Lei said angrily: "You told me last time that you wanted me to research a magic array that can control the temperature of the flame and regulate the temperature, have you forgotten?

Wang Yong patted his forehead and said, "Damn, I really forgot, there have been too many things in the past few days, and I can't remember many things." Lei He just snorted and ignored Wang Yong anymore.

Wang Yong hurriedly went over to curry favor, and after Lei was angry, Wang Yong said: "In this way, I'll tell you my plan, you just study the magic array according to what I want to do, so that I always forget what magic array I want to use." Lei Xiang nodded, rummaged through a pile of miscellaneous items, and finally took out a pen and paper, waiting to write down all the plans Wang Yong said.

Wang Yong thought for a while, and then said after sorting out his thoughts: "It's almost December now, and the climate here is warm, and we can start building the city in March next year at the latest." But the city I want to build is not like other cities, they use stone, and building a city with stone is very difficult for us in terms of transportation, maintenance, and strength. ”

Ray asked in surprise, "What do you use without stones?"

Wang Yong said confidently: "We use reinforced concrete structures to build a city, as long as the quality is good, the solidity is much better than that of stone, and it is easy to repair after damage." ”

Lei asked curiously: "What is reinforced concrete?" Wang Yong was very satisfied with Lei He's cooperation, if he was the only one who said, no one cooperated to ask questions, I'm afraid he would feel bored, let alone the current sense of superiority.

Based on the information in his mind, Wang Yong introduced in as much detail as possible: "Cement is the lime powder we used in our fights, to be exact, those are not real lime. Cement is to add some lime and some other materials to stir evenly, press into a cake, and then calcinate in a flame of 1,500 degrees for about half an hour, and then reduce the temperature to 1,200 degrees, and finally take out natural cooling, and the gray powder obtained after grinding is cement. It's just that the time to make lime is probably longer, and I need to build a kiln, put the kind of stone I use to grind lime powder into the kiln, use coal as fuel, heat it to 800 to 1,200 degrees, and keep it for about three days, and then grind the powder to make real lime. ”

Lei asked puzzledly, "What is a fire kiln?"

Wang Yong replied: "It is a building that is basically sealed and can be well isolated from temperature loss, and it can be heated with fuel." We need to build more of this kiln, and it can also be used to burn pottery and bricks in the future. ”

Lei said to Wang Yong that there were many things he didn't understand, so he asked, "How hot is that 1,500 degrees or something?"

Wang Yong asked curiously: "Isn't there also a temperature measurement unit here?"

Lei nodded and said: "There is a temperature measurement unit, but each country has its own national standards, and they are not uniform, and other measurement units are the same, and our empire and other empires are basically not the same." ”

Wang Yong frowned and said: "This doesn't work, the unit of measurement is not uniform, so how can the technology be circulated?"

Lei said as a matter of course: "All empires hide their technology for their own use, who will let others learn technology?"

Wang Yong pouted and said, "No wonder the technology here is so backward. Since there is no unified unit of measurement, let's experiment slowly, and then let's make our own unit of measurement. Wang Yong felt that the unit of measurement here was different from that of the earth anyway, and it was better to set a new standard by himself.

Lei He was very much in favor of Wang Yong's proposal, thought about it, and then asked: "You mean that you want to engrave the magic array in the furnace you said, and use the magic array to control the temperature and time inside, right?"

Wang Yong nodded and said, "Yes, how about it?"

Lei He thought that Wang Yong's idea was very good, and after thinking for a while, he replied: "The temperature meter is fine, make a blank thermometer first, and mark the scale on it after determining the temperature." As for the magic array, I probably have some ideas, and I guess there is no problem, but the magic array needs to use magic crystals to provide energy bands to operate, and if you want to use a lot of them, the consumption of magic crystals will be very large. ”

Wang Yong nodded and said, "I have already asked Mo Li to buy more magic crystals by the way this time, how many magic crystals do we have captured from the bandits?"

Lei replied: "There are still more than 20 of them, and you have killed so many bandits this time, and the contents have not had time to be counted, because there should be a lot of them." ”

Wang Yong nodded and said, "Then let's use these first, and when we research a magic array that can charge the magic crystal, these problems are nothing." ”

Lei grabbed Wang Yong and asked, "What is that cement? Wang Yong thought for a while and said: "This cement, that is, add a small amount of sand and water when you use it and stir it evenly, which can be used as a binder for building materials, or it can be used alone." When the cement is dry, it will not be less harder than ordinary stones. Lei He thought for a while and said, "Do you want to do any shape of building, so you don't need to find stonemasons to process it?" Seeing Wang Yong nodding, Lei Xiang said happily: "That's great, I'm still thinking, where can we find so many stonemasons when we build the city." If there is cement, the problem is solved. By the way, let's talk about what rebar is. ”

Wang Yong thought for a while, organized the language, and explained: "Let me talk about steel first, this steel is the product of iron after deep processing. First of all, the iron is melted into molten iron, and then the impurities in it are burned at a higher temperature, and then the oxidation in it is removed, and the resulting metal is steel, and the strength of steel is much higher than that of iron. By the way, is there any gas in this continent that can raise the temperature of the flame?"

Lei thought for a while and said, "It doesn't seem like it, at least I haven't heard of it, but even if there is really that kind of gas, it will be very expensive, and we can't afford it." ”

Wang Yong frowned and walked around the room, how to practice steel without oxygen, how to realize his plan without steel.

After thinking about it for a long time, Wang Yong suddenly thought that using oxygen is to increase the temperature, I don't know if the magic array can do it, if it can, it is much more convenient than using oxygen to raise the temperature, and the deoxidation of the molten steel in the back can also be saved.

Wang Yong asked expectantly, "How much can the magic array raise the temperature?"

Ray replied, "It can't improve much." After thinking for a while, he continued: "It's hard to say if you can make a compound magic array, several magic arrays that increase the temperature are combined, and after the effect is superimposed, it should be able to increase the temperature a lot." ”

Wang Yong asked eagerly, "How many do you have?"

Lei recalled for a moment and said: "This kind of magic array is very simple, I will have the best effect of the three kinds, and I know several of them, but because the effect is not very good, I have not studied it." ”

Wang Yong said urgently: "Then let's try it now and see if we can make a composite magic array." ”

Lei He also said excitedly: "Okay, then let's start, if it really succeeds, then the day when we can charge the magic crystal is not far away." ”

Wang Yong asked curiously, "How do you say this?"

Lei said disdainfully: "You still want to learn to practice gold, and you don't even know the most basic common sense." Let me tell you, with Emily's gold training notes, I found a few lost magic arrays on it, as long as you can use space magic to combine them into a composite magic array, you can theoretically charge the magic crystal. The reason why the current level of gold practitioners is not high is because there is no way to combine a single magic array, if your method is feasible, then our gold training technology can be improved to the top level of the entire continent. The more Reagan spoke, the more excited he became.

Wang Yong said with some concern: "This method was told to me by Luke, so the Eternal Empire has successfully researched the compound magic array. No, I'll have to ask him how far the Eternal Empire's compound magic array has been studied. Wang Yong was a little worried, he didn't want the enemy country to research any secret weapon but he didn't know it, so he would be very passive when the war started, so it was better to find out first.

Reagan also felt that this matter should be clarified first, he didn't think about the research of weapons, Reagan wanted to know more about other people's research directions, which could expand his closed thinking for him.

Because many alchemy problems are not difficult to solve, as long as you find the right direction, it will naturally come to fruition, but most of the problems encountered by Reagan are because of too little knowledge and experience, so they have not been able to solve them, so just take this opportunity to open their eyes.

After a long time, Lei Xiang said, "Don't think so much about it first, let's try to combine the magic array." Wang Yong nodded, and followed Lei into an empty room.