"Boom!"

A loud bang came, and Li Weiguo and his party, who were inspecting the electrical department, were startled.

"What's going on?"

Xu Shou shouted, and soon a patrol guard came to report that an electrical room had exploded.

"Your Majesty, it is a dereliction of duty ...... the minister"

"You don't have to do everything for yourself! Let's check it out! ”

Li Weiguo was very curious, what the hell was going on in the electrical room, it could explode, he wanted to see what was going on.

Soon, everyone came to the laboratory where the accident occurred and saw that the sign was a battery pack.

This is a laboratory specializing in batteries, which are currently used exclusively by trucks and ships, but this time it is not, and the battery that exploded is a submarine project.

The core equipment of the Holland submarine, if you want to improve the diving speed and diving time, you can't do without a large-capacity battery.

Knowing that the Imperial Academy of Sciences was established, thousands of scientists and engineers gathered, and Holland thought that there would be capable people to help develop large-scale battery packs, and it turned out that someone really took Holland's order and undertook the development of large-scale battery packs.

This man's name is Plante, a French physicist, because of the Franco-Prussian War, his hometown was affected by the war, so he brought his family to China to pan for gold, after being hired by the Imperial Academy of Sciences, he found that there were too many talented people, and the competition was fierce.

When Holland sent the order for battery research to the Imperial Academy of Sciences, many scientists were afraid to intervene because such a large-scale battery project appeared for the first time in the world, and Plante had some knowledge in this area, and he invented the lead-acid battery in 1859. Although it is a small battery, it is similar to a large battery.

In particular, I learned that there is a scientific research fund of 500,000 yuan, and a bonus of 50,000 yuan after the successful development. For him, who was short of money to settle down, he immediately took it.

However, large batteries are not small batteries and can be dangerous if you are not careful.

No, Plante was so careless that one of them burst the battery and injured several assistants.

"Being able to blow up the battery is also a talent!"

Li Weiguo was curious. Call in Plante and his assistants to inquire about the situation.

Soon, Li Weiguo figured it out.

It turned out that although Plante was the inventor of the lead-acid battery, it usually only developed small lead-acid batteries. When it comes to large batteries, one of the key problems overlooked is the exhaust problem and the problem of distilled water replenishment, as well as the lack of circuit protection devices that cause the electrodes to be unstable and expand, which also leads to explosions.

Li Weiguo told Plante these reasons and helped him design a simple overload protection device. The explosion problem was successfully solved.

For Li Weiguo. It's just a little common sense at the high school level, but for Plante, it's an unattainable height.

The academic knowledge of this era is far inferior to that of later generations, and the junior high school students of later generations can become university teachers in this era, and Li Weiguo's bachelor's degree is enough to be called a professor in this era.

However, Li Weiguo does not put his mind on this, so he can only "mention a little bit" at most.

Li Weiguo told Plante what he knew about large lead-acid batteries. And reminded him that he didn't need to make the battery too big, after reaching a certain capacity. If you go any further, the danger will increase exponentially, and you can use the battery pack to increase the capacity, voltage, and current intensity.

Plante was immediately instructed and praised again and again.

"Your Majesty, you are so powerful, I want to worship you as a teacher!"

"Uh......" Li Weiguo was also drunk, this Plante was a little too excited, and he wanted to worship him as a teacher, so he quickly refused.

What kind of joke is it to let Li Weiguo accept apprentices, it is definitely a "misguided child"!

However, if you want Li Weiguo to point out Plante, you can still drop.

Batteries are very important, not only widely used by the civilian population, but also vital to the military.

At present, only China has an automobile industry in the world, and there is no battery that can not be automatically ignited before, but now Plante is in the Imperial Academy of Sciences, and his lead-acid battery patent has been transferred to China, and the small-capacity battery he has successfully developed is enough for the car, so that China's automobile battery can be easily solved.

Because batteries need to be used in many equipment, especially military ships, batteries are indispensable. In particular, the battery for submarines is almost a decisive key piece of equipment for the performance of submarines.

Li Weiguo attaches great importance to submarines, because in the next five-year development plan of the Imperial Navy, if it wants to defeat the British Royal Navy and gain sea supremacy in East Asia and the Pacific, the certainty of relying on the 99th Fleet alone is not very great, but if there are submarines that can sail in the deep sea, then the certainty of victory will be even greater.

Fortunately, the large lead-acid battery developed by Plante has basically taken shape, and this time Li Weiguo helped him solve several key problems, and then only needs to carry out a series of improvements and experiments, and I believe that it will soon be equipped for submarines.

At the thought that the submarines of the Imperial Navy could be able to dive for a long time, Li Weiguo was very happy.

Throughout the day, Li Weiguo stayed in the electrical department, surrounded by a group of electrical scientists and engineers, discussing this knowledge and future prospects.

Li Weiguo is still very interested in this regard, and discussed with everyone the development direction of the future power revolution. He said that the head of the road, the future development direction of electrical is very clear, so that all the experts in the electrical department are full of fighting spirit.

"Your Majesty, you said that the future will be the era of electricity, but how can we make electricity resources cheaper?"

"Yes, the current electricity price is too high, and we have tried many ways to increase electricity production, but it still doesn't work."

The crowd raised one of the most important questions to Li Weiguo, that is, if we want to see an electric revolution, we must at least solve the problem of large-scale industrial production of electric energy.

It's no wonder that they have this question, before alternating current proved its economic value, humans used direct current. The biggest disadvantage of this direct current is that the cost is too high, and it cannot be transmitted over long distances, and the construction of thermal power stations must adopt the principle of proximity, as close as possible to the urban power units. Otherwise, the cost of electricity transmission alone is enough to swallow up a wealthy middle-class family, let alone ordinary people, who simply cannot afford it.

If ordinary people can't afford electricity. Then the so-called electric revolution is empty talk, **** the same.

Li Weiguo has long been prepared for this problem.

Isn't it alternating current, the difficulty of middle school physics is not a problem at all for Li Weiguo.

He then said: "DC power must not be used for large-scale industrial construction and civil electricity, that is too expensive." But we can use alternating current and develop alternating current appliances, so we can solve this problem of electricity cost. ”

Staley as an expert in electric motors. He has been researching DC motors and has achieved great success, so he asked, "But how can AC motors solve the problem of continuous power supply?" After all, the alternating current is intermittent. Too much damage to the motor! ”

Li Weiguo replied: "You only need to control the alternating current at the rated frequency. For example, alternating current of about 50 hertz can replace the constant supply of direct current, and the damage to the motor itself is limited and within the tolerable range. ”

Everyone was stunned for a moment, and one of them Deppler suddenly asked, "Your Majesty, what does Hertz mean?" ”

"Hertz is ......" Li Weiguo said to his lips, and suddenly realized a problem, although Nima was already born at this time. However, he did not discover electromagnetic waves, and Hertz is also the name of the unit that was later prescribed by later generations to commemorate Hertz's discovery of electromagnetic waves in 1887. At this time, it has not yet appeared.

Fortunately, Li Weiguo stopped his mouth in time and corrected: "He Zhi is a friend of mine, surnamed He Mingzhi, it was he who discovered electromagnetic waves, but unfortunately he died before he could announce his results to the world, I miss him very much, so I used He Zhi to express the unit of frequency to commemorate He Zhi's discovery of electromagnetic waves." ”

Well, Li Weiguo was very witty and quick-witted, and directly replaced Hertz with He Zhi. Poor Hertz child, his achievements were distorted by Li Weiguo as someone else's.

"I can't imagine that His Majesty's friend is so powerful that he actually discovered electromagnetic waves, which is simply the most significant discovery in the world of physics."

"Yes, we have always deduced the existence of electromagnetic waves only theoretically, and we have not found electromagnetic waves in nature, Mr. He Zhi actually discovered the existence of electromagnetic waves, he is too powerful!"

"It's a pity, Mr. He Zhi's untimely death is a great loss to the world's physics community!"

Finally, Xu Shou said: "Your Majesty named the frequency unit after He Zhi, which shows that Your Majesty misses He Zhi deeply, and affirms He Zhi's achievements until the ministers have deep respect!" ”

When everyone said this, Li Weiguo, who was known for his thick skin like a city wall, felt embarrassed.

Do you dare to be shameless!

Well, Li Weiguo said that he didn't mean to, and silently apologized to the Hertz children in his heart.

Ending the topic of He Zhi, everyone returned to the issue of AC motors.

Starley, who had studied electric motors and was an expert in this area, was very interested in AC motors, and hurriedly asked: "Your Majesty, you must have a lot of experience in AC motors, and please give me advice." ”

Li Weiguo is still very generous to his own people, although Staley is a foreigner, but Staley's family has immigrated to China and joined Chinese nationality, so Li Weiguo decided to tell him some knowledge about alternating current.

The AC motor is very simple, and it is also a problem for junior high school students, which is not difficult for Li Weiguo at all.

"My friend named He Zhi is actually close to completing the development of the AC motor, and I am fortunate to have obtained some information in this regard, which I can tell you, and I hope you will make persistent efforts to develop it."

Starley and the others' eyes lit up, and they were immediately overjoyed, and hurriedly pricked up their ears to listen, not daring to leave a word or a half.

I only heard Li Weiguo say: "The alternator is actually not complicated, and the general principle of its construction is similar to that of the DC motor, which is to use appropriate magnetic and conductive materials to form a magnetic circuit and circuit that conducts electromagnetic induction with each other, so as to generate electromagnetic power and achieve the purpose of energy conversion." ”

Li Weiguo paused and continued: "The alternator is usually composed of stator, rotor, end cover and bearing. The stator consists of a stator core, a wire-wrapped winding, a base, and other structural parts that hold these parts in place. The function of the stator is to generate alternating current. The rotor is composed of rotor core (or magnetic pole, magnetic choke) winding, retaining ring, central ring, slip ring, fan and rotating shaft. The function of the rotor is to generate a magnetic field. I install it in the stator. The principle is that the stator and rotor of the generator are connected and assembled by the bearing and end cover. The rotor can rotate in the stator and cut the magnetic field lines, thus generating an induced electric potential. It is led out through the terminal block and connected to the circuit, and an electric current is generated. ”

This is how an AC motor works?

Isn't it easy?

Starley and the others were stunned for a moment, but then understood. It's not that they haven't studied it, but they have been taking detours, and when they heard Li Weiguo say this, they suddenly became enlightened.

In fact. Many inventions are very simple, but human beings lack the inspiration and opportunity to do so, and many inventions that can change the course of history. It originally existed in the world, but it has not been noticed and discovered by human beings.

"Thank you, Your Majesty, I think I'll be able to build an alternator soon!" Starley said happily that it was for him. It's not too hard.

Xu Shou asked, "Your Majesty." Since the alternator is fine, I believe that Academician Staley should be able to develop it soon. The problem is that in order to carry out large-scale industrial construction and implement the power revolution, it is necessary to solve problems such as large-scale power plants, power transmission losses, and conversion of industrial AC motors. ”

Li Weiguo nodded, this Xu Shou still has some foresight in looking at the problem.

"To put it bluntly, the AC motor is to make the rotor rotate constantly to cut the magnetic inductance line to generate current, which can use the steam of the steam boiler to push the rotor all the time, which is the basic principle of thermal power station. Meantime. The waterwheel driving the loom is also a reference, which can be used to set up dams in the river. Using the potential energy of the water drop to propel the rotor of the motor to generate electricity, I call it a hydropower station, and even by drawing inferences, you can also build a power station by using the tides! ”

Everyone nodded one after another, they had been surprised from the beginning, and now they are no longer surprised, in their eyes, Li Weiguo is a sage who is powerful, omniscient and omnipotent, and everyone is happy and convinced.

If Li Weiguo didn't say a word before, everyone would die to save face and debate to the end, then now everyone no longer needs to doubt it, just like students will not doubt the content of the textbook taught by the teacher, they believe Li Weiguo's remarks almost 100%, even if they don't understand or understand it for the time being, they won't question it, but wait to explore it slowly themselves.

This is the cult of personality, especially in the scientific world.

can make these scientific cattle worship so much, one can imagine how proud Li Weiguo is at the moment.

Deppler then asked: "Your Majesty, the problem of the power station has been solved, so how to achieve the loss of long-distance transmission of electricity?" After all, thermal power stations, hydropower stations or tidal power stations are unlikely to be too close to the city, and the loss of intermediate power transmission will directly affect the problem of electricity prices. ”

"Good question!" Li Weiguo snorted lightly and said, "The power transmission problem is the biggest problem!" But I really know that my friend He Zhi has also thought about this problem, and he has come up with a solution, that is, high-voltage transmission lines can reduce current loss. ”

High-voltage power lines?

The crowd fell silent.

Soon, Depler slapped his thigh and said in surprise: "Yes, when the resistance is constant, the higher the voltage, the smaller the current, which can reduce the power transmission loss!" ”

"It's just that how can you increase the voltage significantly?"

Li Weiguo smiled bitterly, okay, he has to talk about the problem of voltage devices in junior high school physics textbooks.

Fortunately, the structure of the voltage device is simpler, and it is difficult to defend the country.

"It's very simple to solve the voltage device, I have seen He Zhi's design, and the voltage delivery problem can be changed with a coil."

Well, Li Weiguo can only use the name "He Zhi" all the time, he doesn't want to be too amazing.

So, Li Weiguo explained the basic principle of the transformer and simply drew the circuit diagram, which everyone understood at a glance.

Of course, they don't know this principle of the electromagnetic coil, and they have to go back and certify it themselves.

However, they believe that what Li Weiguo said must be right, so the transformer problem has been solved and long-distance power transmission can be carried out.

As for the last question, it is the electrical equipment, which is not difficult, just change the DC motor to an AC motor.

Until then, a complete set of power processes has been formed, and the two key problems of power generation and power transmission have been solved, so there will be no problem in the future power revolution.

The only problem is how to develop alternators and transformers as soon as possible by Starley, Depler and others, as long as they are successfully developed, then Li Weiguo can directly implement the power industrial revolution.

The steam engine industrial revolution carried out in Britain in 1840 established the position of the world's largest industrial power in the British Empire, but as time passed, Britain was being overtaken by emerging countries such as the United States, China, and Germany, and will soon be surpassed.

Therefore, before the next industrial revolution - the electric revolution, if China seizes the opportunity, then it will also lay the foundation for China to become the world's largest industrial power. (To be continued.) )