Li Xiang did this, naturally not to see the privacy of other girls, but to control Zhao Mengyao, and one more, Li Xiang also felt that this Zhao Mengyao was not an ordinary Mongolian girl, her performance was extraordinary, and she must be a nobleman. Pen % fun % Pavilion www.biquge.info

Zhao Mengyao still didn't understand the meaning of his words, wasn't she afraid that she would run away without permission, glared at him coldly, ignored him, and pushed the door in.

At this time, Li Xiang turned around and saw that Huan'er's door was opened a small crack, and then looked at him with a pair of thief eyes, Li Xiang smiled, knowing that she was looking at Lu Xiu'er's absence.

I saw Huan'er whispering: "Young master, does that sister who can ride a horse live in this house?" He pointed to the door that was still open behind Li Xiang.

Li Xiang nodded, the little girl's eyes widened, excitement flashed, and she immediately bypassed Li Xiang and ran towards the room, she had been observing in her room for a long time, but just now she saw the white-shirted sister walk into this room, as for asking the young master, it was just to be sure.

Li Xiang shook his head and let the little girl communicate with Zhao Mengyao, but I don't know if I will call out the title of Sister Yao at the dinner table for a while, and in this case, I don't know what Xiu'e, who has been very good with the little girl recently, will think.

Although there are often sparks colliding at the dinner table, with Li Kang, the head of the family, Zhao Mengyao, as an outsider, temporarily integrated into this big family and began to officially become the "coolie" of their father and son.

According to the official system of the Great Song Dynasty, a state and a government should set up a military department, and there is no clear regulation on the number of garrisons, which belongs to the local army and is controlled by the state government yamen, Li Kang has the right to recruit troops, and now there is a lot of money, and at the same time artillery is also preparing for production, so he began to expand the army again.

As for Zhao Mengyao, he has successfully integrated into hundreds of soldiers, Li Xiang has been to the Chengnan campus to see, although it is only a few days of work, but it is undeniable that the kung fu of hundreds of soldiers on the horse can make people see that they have grown, at least he, a layman, can see it.

On this day, Li Maru was about to go to the artillery factory to check the manufacturing progress of the artillery, but Li Xiang asked him about sulfuric acid, and he didn't know what his son wanted these things for, so he thought about it and said: "Sulfuric acid is said to be made by calcining it in a distillation kettle with green alum as raw material, and it is mostly used by Fangshi, in fact, this kind of thing is usually called alum oil, and it is only called sulfuric acid in "Mengxi Bi Tan". ”

Li Xiang hurriedly asked, "Father, do you know where to get this kind of thing?" ”

Li Kang said: "There should be this kind of thing in the copper factory, I heard that there will be green alum occasionally produced after copper smelting, but the specific situation is unknown, if Xiang'er wants to go, he can let Wang Lin lead the way." ”

It turns out that Li Xiang wants to make generators and batteries, after all, whether it is to produce artillery or steelmaking, as long as it is industrialized, it needs electricity, and batteries are also very useful, but it is not possible to use super 3D printers to print in batches at present, because the materials in super 3D printers are limited, and those live broadcast points are also very valuable, and they can't be changed casually, so he thought of using soil methods to let craftsmen produce generators and batteries.

Although Wang Lin is a fellow acquaintance and older than Li Xiangguan, he was also a little excited when he heard that he was going to be Li Xiang's assistant, after all, in these days, he has deeply felt Li Xiang's power, he is very knowledgeable, and it is naturally impossible to help him do things.

Li Xiang immediately gave Wang Lin the first task: to order a porcelain container with a length, width and height of 40 centimeters.

After explaining the task, Li Xiang was still not at ease, and thought that if this battery could be successful, how to measure its capacity and voltage? At present, there is no voltmeter, no light cannon to use, and printing some electrical equipment does not dare to plug in and charge casually, so a simple load is needed to make the battery work.

Li Xiang also wanted to make the electric lamp, according to Li Xiang's idea, if you want to make an electric lamp, it is not difficult, just like the biogas lamp, he has not made it yet. Of course, electric lights still need to use a printer to print some filament materials, as for glass blowing, it is easy.

The speaker is easy to manufacture, at least the production of dynamic speakers is not too difficult, and the materials required are only permanent magnets, paper cones, and some copper wires, but this can not measure the battery capacity, there is a way to try, that is, to make a simple heating wire to heat water, so that you can calculate how much work is output through the specific heat of water, and you can also estimate the power by time, and you can even find information to get the resistivity of the heating wire, so that you can also calculate the voltage and current, but this method is too troublesome, And the error of the obtained results must be more than half, so Li Xiang immediately denied this method.

But what if you make an electric motor? The raw materials of DC motors are actually easy to find, and only permanent magnets and some enameled wires are needed, and ferrosilicon cores can be made. Magnets can be found ready-made natural permanent magnets, and the iron core can also be superimposed with ordinary iron sheets to make do, but enameled wire is a problem, but Li Xiang quickly came up with a way, which can be directly wound with copper wire at a certain interval, and then use oil paper as an insulator between the layers.

Thinking of this, Li Xiang was a little relieved, and he decided to use a simple motor to measure the capacity of the battery. But there is still one thing that needs to be implemented, that is, copper wire should be able to be manufactured in batches.

Wang Lin listened to the copper wire described by Li Xiang and said with a smile: "Lord Li, please rest assured, the manufacture of copper wire is not difficult, copper factories often produce some copper wire to supply craftsmen for decoration, and some people use copper wire to make strings and other things." ”

Li Xiang was overjoyed when he heard this: "This is very good, it seems that I still have to go to this copper factory once." ”

Li Xiang also asked Wang Lin to prepare a 30-centimeter-square, 2-centimeter-thick copper plate, and another zinc plate of the same size, which was cast with binding posts, and designed a bracket of the same material at the bottom so that it would not fall to the side when placed in a flat-bottomed container.

At this time, it was noon, Li Xiang did not rest, the two had lunch indiscriminately, and hurried to the Sichuan Copper Factory with Wang Lin.

The copper factory is about 20 miles away from Chengdu Mansion, and when Li Xiang and Wang Lin came, the person in charge was also quite polite, after all, Li Xiang has been famous recently, and he is a celebrity in front of Master Lu, the Sichuan system, so he naturally has to try his best to cooperate with Li Xiang's work. Even if others want to stammer, they don't have a chance, but he's good.

Li Xiang first asked about the current copper production method, and it turned out that the Song Dynasty had already had a mature chemical copper production method. In fact, in many works of the Han Dynasty, it is recorded that "stone gall can turn iron into copper", and in the Jin Dynasty, there is also a record that "iron is coated with Zeng Qing, and iron is as red as copper". (To be continued.) )