In the autumn of this year, a sudden bad news came from Pingyuan County that surprised Liu Zhi.

Liu Shuo committed suicide.

He suspected that this guy was suffering from depression, and his illness became worse, and finally he felt that he had nothing to love, so he took an extreme way and hanged himself.

He was relieved, but he left Liu Zhi with a bunch of trouble.

First of all, this incident hit the Empress Dowager Yun very hard, and she fell ill all of a sudden, and secondly, almost everyone thought that he was afraid of the emperor's sanctions, so he committed suicide.

Especially after only half a year of Liu Kui's incident, it is difficult for people not to associate with that aspect.

There are even rumors that Liu Kui has actually died a long time ago, and the emperor has belittled him for thousands of miles, just to hide people's eyes.

In and out of the words, there was a vague implication that the emperor was too harsh.

It is estimated that modern people will find it very strange, this is a crime of rebellion, and any generation in the Tang, Song, Ming and Qing dynasties will be killed to death.

Even if it is a brother, it is already incredible to be able to leave a life, how can there be public opinion gossiping?

This has a lot to do with the social environment of the Eastern Han Dynasty, since Emperor Guangwu has paid attention to benevolence and filial piety to rule the world, and from top to bottom he attaches great importance to reputation.

Liu Xiu originally said that he would rule the world with scholars, so in the Eastern Han Dynasty, he treated scholars and nobles very favorably.

Even if it is a felony of rebellion, it is rare to kill them all, and in many cases, even the mastermind will not be killed.

Therefore, after he overthrew Liang Ji, he did not dare to publicly execute him because of his unstable foothold, so as not to arouse public opinion attacks.

Now, of course, he has this confidence, but Liu Kui is a clown who jumps off the beam and can't pose any threat.

For the sake of his mother's face, he was too lazy to take the other party's life, not afraid of being discussed.

Now that he has been misunderstood, Liu Zhi just laughed when he heard it, he only cared about his mother's attitude, she didn't want to listen to slander.

Speaking of which, he crossed over and had nothing to do with the Empress Dowager Yun in his soul, but Liu Zhi had never enjoyed maternal love in his previous life, so he was shocked.

As soon as he crossed over, he got typhoid fever, and it was the Empress Dowager Yun who took care of her carefully, so she picked up a life.

Moreover, the Empress Dowager Yun has a gentle and kind personality, and she is single-minded and loving to Liu Zhi, which meets all his expectations for a mother.

It is precisely because of these many reasons that Liu Zhicai attaches great importance to this mother-son relationship, and has always been careful to maintain the relationship between the two.

The Queen Mother's illness gradually sank, and the Tai Hospital also sent a luxurious lineup to take turns to consult.

It's a pity that heart disease still needs heart medicine, and the Empress Dowager Yun's illness is not eradicated, and she is depressed and unhappy, so it is naturally difficult to completely heal.

Liu Zhiyi named Liu Shuo's young son Liu Ying as the king of the plains, and saw that his parents were dead and there were no relatives to take care of, so he specially asked his uncle Cen Xi to be the minister of the plains.

Empress Dowager Yun was very satisfied with this arrangement, and as for Liu Kui's side, he had no choice but to move him from the desolate Haizhou to the more prosperous Jinzhou area.

It can be regarded as a comfort to the Empress Dowager Yun.

In view of the increasing size of the country, the transmission of information mainly relies on post stations, even if Long Linwei's flying pigeon transmission is relatively fast, it is not very safe, and the loss is large.

Liu Zhi remembered the convenience of communication in later generations, such as satellite phones, the Internet, etc., which could transmit messages instantly.

But now, alas!

He suddenly remembered the mainstream of communication during the Industrial Revolution in the nineteenth century, the telegraph, or the wired telephone.

If satellite telephones are as difficult as they are now, then telegraphs and wired telephones are feasible.

But all of this has a premise, that is, there must be electricity first.

A long time ago, when he started tinkering with biogas lamps, he thought about researching generators, but after some hesitation, he finally decided that the conditions were not ripe and gave up for the time being.

Now it seems that it is time to start again, after all, after more than ten years of industrial development, the popularization of physical fundamentals has also reached a certain scale.

Whether it is production technology or knowledge reserves, it is not the same as more than ten years ago.

When the industry develops to a certain stage, it will be difficult to make a big breakthrough without the participation of electricity. Therefore, the emergence of electricity has become an inevitable trend.

Many years ago, while his memory was still not declining, he drew drawings of ordinary generators.

This kind of generator, which is the most common small diesel generator in later generations, is still available in small enterprises in remote towns and villages where electricity is scarce.

Of course, there are no fuels such as diesel, gasoline, etc., but there is biogas, and natural gas can also be extracted as fuel.

After all, it is not technically difficult to convert a natural gas generator with a diesel generator.

To this end, he found several main leaders of the Academy of Sciences, all of whom were cutting-edge and had a strong interest in the development of science and technology.

With the exception of Fang Zhi, the others were all young people, all of whom had been apprentices to craftsmen and had studied systematically.

At the beginning, they were selected by Liu Zhi to set up a steam engine research and development team, and in the process of research and manufacturing, they grew rapidly.

Among them, the best of them contributed to the research and development of the steam engine, and by virtue of this, they broke away from the category of ordinary craftsmen and became the backbone of the Academy of Sciences.

In particular, a young man named Meng Jian, who was so talented that he stood out and became the vice president of the Academy of Sciences, second only to Fang Zhi.

But in fact, he is the leader in charge of scientific and technological research and development, and Fang Zhi became the dean because of his qualifications and prestige, and his responsibilities are more inclined to administration and education.

As for the "electricity", they already know a little bit about it through Gezhixue, and they have also carried out similar small experiments.

Therefore, Liu Zhicai felt that the time was ripe for power development.

Facing the drawings of the generator, Meng Jian's eyes lit up, as if a tiger who had been hungry for three days saw the food and wanted to pounce on it directly.

He is a tech maniac, with the rigor and fanaticism of a developer, and he is hungry for every new technology.

Of course, now they are not surprised that His Majesty has any strange drawings, and they will not go to the bottom of it.

"Your Majesty, this is the generator?"

"Yes, that's the fuel generator."

Words such as gasoline and diesel are not easy to explain for the time being, and it is relatively accurate to replace them with the word fuel.

Immediately afterwards, Liu Zhi introduced the structure and working principle of the generator in detail.

To sum up, it can be summed up in one sentence: the fuel generator is composed of a fuel engine and a generator, and the fuel engine is used as the power to drive the generator to generate electricity.

Its basic structure is composed of cylinders, pistons, cylinder heads, intake valves, exhaust valves, piston pins, connecting rods, crankshafts, bearings and flywheels and other components.

In order to understand the working principle of the fuel engine, we must first understand its basic structure.

Modern fuel engines are generally single-cylinder or multi-cylinder four-stroke, and the machine starts by rotating the crankshaft by manpower or other power, so that the piston reciprocates up and down in the cylinder closed at the top.

The piston completes four strokes in motion: intake stroke, compression stroke, combustion and work stroke, and exhaust stroke.

When the piston moves from top to bottom, the intake valve opens, and the fresh air filtered by the air filter enters the cylinder to complete the intake stroke.

The piston moves from bottom to top, the intake and exhaust valves are closed, the air is compressed, and the temperature and pressure are increased to complete the compression process.

When the piston is about to reach its peak, the injector sprays the filtered fuel into the combustion chamber in the form of a mist, and mixes it with high-temperature and high-pressure air to immediately ignite and burn itself.

The high pressure formed pushes the piston to work downward, pushes the crankshaft to rotate, and completes the work stroke.

After the work stroke is finished, the piston moves from the bottom to the top, and the exhaust valve opens to exhaust the exhaust to complete the exhaust stroke.

Each stroke crankshaft rotates half a turn, and after a number of working cycles, the fuel engine gradually accelerates into work under the inertia of the flywheel, and the crankshaft rotation drives the generator to rotate to generate electricity.

Generators include DC generators and alternators.

DC generators are mainly composed of generator shells, pole cores, magnetic field coils, armatures and carbon brushes.

Working power generation principle: When the fuel engine drives the armature of the generator to rotate, due to the remanence of the pole core of the generator, the armature coil cuts the magnetic field lines in the magnetic field.

According to the principle of electromagnetic induction, the current is generated by magnetic induction and the current is output through the carbon brush.

The alternator is mainly made of magnetic materials, with multiple permanent magnets arranged alternately at the north and south poles.

It is composed of armature coils made of silicon cast iron and wound with multiple sets of series coils.

Working power generation principle: the rotor is driven by the fuel engine to cut the magnetic field lines axially, and the alternating magnetic poles in the stator form alternating magnetic fields in the coil core.

When the rotor rotates once, the direction and magnitude of the magnetic flux change many times, and due to the transformation of the magnetic field, an induced current of both magnitude and direction changes is generated in the coil and the current is transmitted by the stator coil.

Meng Jian and several other technical backbones nodded frequently when they heard this, and while taking out a charcoal pen to shorthand, they kept asking Liu Zhi for some details, very seriously.

This situation looks like a meeting of technology companies in later generations, without the slightest feeling of monarchy and ministers.

This meeting lasted for a day, after all, the scientific and technological background of people at this time is too poor, although it is easy to say, it is really difficult to understand the principle of it.

In this way, there is still a foundation for more than ten years of industrial development, otherwise he will come up with the drawings, it will be useless, and he will not be able to manufacture it at all.

It seems that he made a wise choice to postpone the generator in the first place.

Since that day, Liu Zhi has shifted his focus to the research and development of generators.

Except for the regular court meeting once every five days, he spent most of his time in the Academy of Sciences, conducting experiments with Meng Jian and others.

For convenience, the address of the Academy of Sciences is very close to the Imperial Palace, which is in the original Taiwei Mansion.

Since the abolition of the system of three princes and nine secretaries, it has become the office of the secretary of the province for a time.

When the Academy of Sciences was formed, Liu Zhi took the opportunity to move the secretary province to the imperial city and placed it in the Zhangde Hall side by side with the Chongde Palace.

The Yutang Hall, where the secretary province is located, and the Lantai, where the Hanlin Temple is located, are all around the Chongde Hall, the highest administrative center of the country.

The military aircraft mansion is located in Yuntai, and there are five or six palace groups around it, such as the Xianqin Palace, the Mingguang Palace, and the Xuanshu Palace, all of which are the office areas of the Seven Shangshu.

Among other important state institutions, only the Imperial History Institute is in the palace but not the palace, and the rest such as the Admiral of the Nine Gates, Dali Temple, Honglu Temple, Gyeonggi General's Palace, etc., are all in the East and West Markets.

The Sangong Mansion, which was previously close to Miyagi, was vacated as the location of the Academy of Sciences, the School of Medicine, and the College of Agriculture.

It can be seen that Liu Zhi's attention to these three special colleges can be placed alongside the national administrative agencies.

The first medical school was already on the right track, and in theory, Liu Zhi could not help for a long time, so he could only let them develop freely.

Since the founding of the Agricultural College, he has personally supervised and led it for more than ten years, and now he has already taught it with all his money, and there is nothing left to teach.

After all, all he knows is some theoretical knowledge, and he can only play a guiding role, and the real practice still depends on them.

In recent years, his focus has been on the development of science and technology, and the maturity of the steam engine process is the greatest achievement of this teamwork.

Nowadays, the steam engine has begun to be widely used in all walks of life, bringing a subversive revolution to the development of mechanization.

The ideological impact of this incident on the people of Dahan was very strong, and more people began to be interested in Gezhixue.

Schools everywhere have made it one of the regular courses, and a group of scholars have even emerged who have studied the theory of Gezhi in depth.

For Liu Zhi, this is of course a good thing to see, and theoretical research is indispensable if Dahan Technology wants to make great progress.

After all, he had only received nine years of compulsory education, and the knowledge of physics and chemistry he knew was too simple and simple.

In the Han Dynasty, where there was no foundation, his knowledge reserves seemed to be very rich, and there was a cultural gap of nearly 2,000 years.

But at the current rate, this knowledge will be far from sufficient in a few decades at most.

Therefore, those theoretical researchers will be precious, just like in modern times, if there were no theorists such as Newton and Einstein, there would be no glory today.

Up to now, as a traverser, he thinks that he is still qualified, at least he has tried his best to sow the fire of science and civilization.

As for what will develop in the future, he can't control anything other than providing a suitable environment.

At the beginning of his crossing, all his energy was spent on the proposition of how to survive, and later, after he became in power, he began to think about how to control power.

Then, his goal was to make the country rich and the people strong, although this goal has not been truly achieved so far, but it is finally developing step by step.

Now, with one goal after another, his attention is focused on the development of science and technology.

That's why this time he attaches so much importance to the research and development of generators, "electricity" is the soul of modern industry, without it, it is not worth saying that he has developed the scientific and technological civilization of the Han Dynasty.

After all these years, he still misses the splendor of modern lights and the convenience of electrification.

As long as there is electricity, maybe in his lifetime, he can still see the birth of some simple electrical appliances.

Liu Zhi's drawings are very simple, and it is not easy to do, the Academy of Sciences has made every effort to tackle tough problems, from the autumn of the sixth year of Jianning, until the summer of the second year, before developing the first generation of products.