In the early spring of 1629, Ezo Island in the far north arrived very late, and the ground was still covered with a thick layer of snow.

People can still only stay in the warm room, can not do anything, but Yang Wenli did not dare to waste precious time, after a few months of teaching, he asked some people to engage in theoretical research, and he took Wang Rucheng and some people to start applied research.

"Listen, our task is to develop a water turbine, but now we are poor and have no conditions, and our task is very difficult.

In order to speed up the development time, I decided to split the staff, take care of each one, and proceed simultaneously.

First of all, the most important thing is copper wire, which is not our common brass, but pure copper, which is purple in color and soft in texture, so it is also called copper.

The best way to make copper is electrolysis, but we don't have electricity right now, so we have to find a way to get electricity first......"

Before Yang Wenli finished speaking, Wang Rucheng whimsically said: "Your Majesty, do we want to use the thunder and lightning in nature?" ”

"Of course not, the thunder and lightning are too violent for us to control for the time being, and we can't use them.

In fact, there is another way to obtain electrical energy, that is, chemical batteries, also known as lead-acid batteries, the raw materials are very simple, we all have, that is, lead and sulfuric acid.

Lead-acid battery is a chemical energy battery made of lead and lead oxide as positive and negative electrodes and separators, generally one grid is two volts, a total of six grids, the voltage of a battery is 12 volts, and two parallel connections are 24 volts.

However, the battery needs to be recharged, and at first it does not carry much power, but when we study hydroelectric generators, we don't need much copper, and we can ignore the cost. ”

"Your Majesty, how do you electrolyze copper?"

"The extraction method of electrolytic copper is actually to make blister copper (containing 99% copper) into thick plates as the anode, pure copper to make thin sheets as cathodes, and use a mixture of sulfuric acid (H2SO4) and copper sulfate (CuSO4) as the electrolyte. After being energized, copper dissolves from the anode into copper ions (Cu) and moves to the cathode, where electrons are obtained and pure copper (also known as electrolytic copper) is precipitated at the cathode. Impurities in blister copper, such as iron and zinc, which are more reactive than copper, dissolve along with copper into ions (Zn and Fe). Since these ions are less likely to precipitate than copper ions, they can be avoided from precipitating on the anode by properly adjusting the potential difference during electrolysis. Impurities such as gold and silver, which are less reactive than copper, are deposited at the bottom of the electrolytic cell.

The copper plate produced in this way, called "electrolytic copper", is of extremely high quality and can be used to make electrical products. ”

"But what if we don't have pure copper for the time being?"

"If you don't have it, you can use the brass sheet first, and then find a way to divide the brass sheet, the solution is to come up, you can try to do it!"

"Alright! This is relatively easy to make, and two people will come out to be responsible for making pure copper! ”

Immediately, two traitor scholars raised their hands and applied: "Your Majesty, count me in" "Your Majesty, count me in as one." ”

"Good! It's just the two of you! Hurry up and act, don't drag everyone back, if you don't understand, ask me again. ”

"Yes," the two of them bowed, and then went to the side to prepare for the officer.

After the two walked away, Yang Wenli continued: "The next task is more difficult, that is, insulating glue, copper wires need to be wounded, and between the copper wires, they must be insulated, so insulating glue must be used."

Insulating glue is a synthetic polymer compound, only shellac has the same properties in nature, but shellac is far away in the southwest mountainous area of China or the Nanyang region, far from water can not quench the thirst, so we must synthesize insulating glue.

Synthetic insulating adhesive is composed of resin, toughening agent, curing agent, thinner, etc., when applying resin is liquid, through the other two liquid curing agent and toughening agent, it can quickly become solid, playing the role of wrapping copper wire and insulation, and the last diluent is to adjust the concentration of liquid, so that it does not solidify quickly.

I don't know the exact ingredients, but I can give you a hint that you can use the chemical components in resin, wax, and coal tar to synthesize, which requires you to do a lot of experiments, so I said that it is more difficult to make insulating glue.

Finally, there are two materials to be developed, the first is silicon steel, silicon steel is very widely used, it has high permeability, low coercivity, large resistivity and other characteristics, so hysteresis loss and eddy current loss are very small. It is mainly used as a magnetic material in motors, transformers, electrical appliances and electrical instruments.

There are several types of silicon steel according to the use, generally the silicon content and processing technology are different, its advantages and disadvantages are mainly determined by the purity of the material, as well as the flatness when made into silicon steel sheets, as well as the quality of insulating glue.

The silicon steel we currently need, the silicon content should be greater than 0.5% to 5%, the carbon content is less than 0.08%, it is a non-oriented cold-rolled silicon steel sheet, and the thickness is required to be between 0.35 mm and 0.5 mm, which is the core material for large and medium-sized generators and motors.

It is also necessary to develop a silicon steel material for transformers, with a silicon content of between 3.5% and 4.5%, which is hot-rolled high-silicon steel with a thickness of between 0.35 mm and 0.5 mm.

The second material is permanent magnets, magnets in nature, which have low magnetic strength and brittle material, and are not suitable for high-performance motors.

We also want to develop a strong magnetic alloy material, the best strong magnet is a rare earth magnet, the strength of the magnet determines the performance of the motor.

Magnetic material is a very important basic material, which will be used in electricity, electronics, communications, etc. in the future.

There is also a carbon brush that needs to be developed, which requires graphite materials, and we don't have it yet, so let's put it aside.

All right! It's these materials, let's act quickly! This time, I will not personally participate in the development, I will only examine your progress and solve some problems that you can't solve. ”

In this way, the Far Eastern Kingdom entered the research of basic science and technology, which laid a solid foundation for the rapid development of science and technology in the future.

From here, it can be seen how far-sighted Yang Wenli was when he came to Ezo Island, only here can he engage in scientific research without distraction, if he is still on Changsheng Island, he doesn't want to fight Jiannu, and the court will force him to fight Jiannu, how can he have time to do research for him!

At this time, he either joined the ranks of the anti-court court, or went to suppress the peasant uprising, there was no third way to choose, which way was not what he thought, because then he would have to stain his hands with the blood of his compatriots, which would cause hatred among the people.

When he arrives here, he is out of sight and out of mind, and is bent on basic scientific research to build a strong foundation for the Chinese nation; when the time comes, he will crush all the powerful and powerful people with absolute strength and quickly end the chaos in the country, so that the Chinese nation will suffer less and more.

……