Li Ji traveled to modern times this time, although it was only four days, and most of the time was busy for Du Fangying's hospitalization and childbirth, but he also did many important things.

For example, he downloaded the drawings of the steam engine from the Internet, and the steel production is endless, if the steam engine is built, it will be a goddamn crookedness.

Li Baoguo, a bastard, is very powerful, Li Ji feels that if this guy is put into modern times, he will definitely be a hegemon, and he is really wronged when he was born in the Tang Dynasty.

Li Baoguo was also one of Li Ji's protégés, and when Li Ji handed him the production drawings of the steam engine and some manufacturing materials, he immersed himself in the study.

At the same time, there were also Zhang Sanzhu, Zhao Xianhua, Ding Bao, Cao Lan, Shangguan Huixing, Hai Dafu and others who were born in arithmetic, and they were all transferred by Li Ji from various ministries to jointly study the steam engine.

In fact, with drawings and steel, it was not difficult to build a steam engine. As long as you build a steam engine, everything else will be solved.

A steam engine requires a boiler that boils water to produce high-pressure steam, which can use wood, coal, oil or gas, or even combustible garbage as a heat source. The steam expansion pushes the piston to do work.

Some people will wonder, why not just let Li Ji go back to modern times and bring back a steam engine?

Yes, but there are a lot of troubles to do so. First of all, you have to explain the source of this steam engine, and Li Ji can also say that this steam engine was shipped from overseas.

But there will be another problem in this way, first of all, there are no accessories for the breakage, and no one will fix it. Then there is technology, Li Ji wants Datang to build a steam engine with his own ability. Only in this way can we continue to develop science and technology by mastering the core technology.

Datang has the ability to build a steam engine, and then to generate electricity. Even in the future, it may be possible to build internal combustion engines and steam turbines.

Because Li Ji found that the more developed and advanced Datang is, the stronger the system capability will be. It is so powerful that the system can do whatever it wants, and immortality does not dare to say, there should be a way to prolong life.

And it is in this parallel time and space that Li Ji can make the descendants of the Tang Dynasty for thousands of years. In the near future, conquer the four seas and dominate the world. Let the banner of Datang be planted all over the seven continents and eight oceans.

Li Baoguo's guy was originally a big spicy chicken, a big liar of an alchemist. But since he got mixed with Li Ji, he not only changed his name, but also became an important minister of the court.

Importantly, most importantly, Li Baoguo has found his purpose in life. In the past, when he was called Qingxuzi, he would not do anything else except pit meng and abduction. Now that so much science and technology have made him obsessed with demons, he can't wait to separate ten bodies and thoroughly study all the things that Li Ji handed over to him.

The steel mills already had the capacity to make large quantities of steel, and Li Ji gave them a book on alloy manufacturing. This let these talents from arithmetic know that it turns out that various alloy technologies can make different materials.

Li Ji was busy, in the past, the Tang Dynasty only had an early dynasty, which was opened in the Hanyuan Palace. After the morning pilgrimage every day, in addition to reviewing and reviewing, you can rest for a day.

Now, for the development of science and technology, Li Ji opened the Evening Dynasty. The evening dynasty can only be attended by arithmetic students, and it is held in the Ming'an Palace. They often quarrel over a certain scientific and technological research, and even fight loudly.

Li Ji has an order, involving academic research, and there is no distinction between monarchs and ministers. So some people are bold, especially this Zhang Sanzhu, who often argues with Li Ji on reason, and sometimes the angry Li Ji can't wait to beat his ass.

But he has a word first, and there is no distinction between monarchs and ministers in academics, and Li Ji can only stare dryly. Fortunately, in this Tang Dynasty, there are no other entertainment activities except for nesting in the Lizheng Hall and the queen's creation.

Although the night market is prosperous, Li Ji is the identity of the Son of Heaven, and it is not suitable to leave the palace at night. Besides, it's just like that after a long visit to the night market. So the late dynasty of the Ming'an Palace became Li Ji's compulsory course every night.

"Well, I don't ask for anything else, but when will this steam engine be made?"

In the evening of the Ming'an Palace, Li Ji asked.

Lifting a stone to shoot himself in the foot, the late dynasty of this Ming'an Palace really has no distinction between monarchs and ministers. Li Ji did not sit on the dragon chair, but imitated the modern era, and let the German king Li Yu make a long table, and Li Ji sat at the top like the company's CEO and discussed with the arithmetic ministers.

There is no projector, there is a big blackboard behind Li Ji, and things like triangular rulers and compasses are all at hand.

Instead of a brush, there was a pencil and rice paper on the table. Fountain pen ink Xishan glaze factory is in production, it is said that significant progress has been made, I believe that the pen will be placed on the desk of the Datang office in the near future.

Li Baoguo leaned on Li Ji recently: "Your Majesty, this steam engine minister and others have already seen the drawings, and everyone here basically understands the principle." But as for when this can be done, I think it will take at least two years, and three years before it can be applied to the train. ”

Li Ji frowned: "Two years, I will give you two years, I want to see the railroad tracks of the Tang Dynasty open to Luoyang City."

"This," Li Baoguo was a little embarrassed: "Your Majesty, although the principle of the steam engine is simple. But we have no experience in production, especially this steam boiler, which also needs a barometer, piston, cylinder, etc., and many accessories, all of which have to be researched and produced with manpower and material resources. ”

"Well, then I will give you a year, and if you can't build a steam engine within a year, I will dismiss you Li Baoguo and demote you."

Next to him, Zhang Sanzhu smiled: "Your Majesty, this Lord Li is the national treasure of our Tang Dynasty." Are you willing to remove his officials? ”

Li Ji said angrily: "What is there to be reluctant to, this kind of waste wood, if it can't even be made with a steam engine, what is the use of keeping him."

Li Baoguo is used to it, Li Ji is ruthless and soft-hearted. In fact, Li Baoguo was more anxious than anyone else, and he gritted his teeth: "Okay, Your Majesty, a year and a half." For a year and a half, the minister will let you get on the train! ”

"Hahaha!" Li Ji laughed: "You fucking said that, don't I feel relieved." I also brought a treasure this time, and I will show you the knowledge today. Promising, take it! ”

I saw Youwei holding something that looked like a shield, Fuquan, holding two round balls and an iron box in his hand.

"Let me introduce, this is the Pearl of the Oriental Night, a good treasure I got back from overseas."

Li Ji tinkered with the iron box, only he connected the two wires of the ball to the iron box, and there was a button next to the iron box.

The ministers of the arithmetic department looked at each other, what kind of treasure is this?

I saw that as soon as Li Ji pressed the button, the indoor lights were bright. The two balls shone and shone white and bright.

Fortunately, the people sitting here are all courtiers of the arithmetic department, where is this night pearl, they know how much the principle of electric light is, it turns out that this is electric light.

This is a solar-powered lamp, and the 60-watt LED bulb illuminates the Ming'an Hall as bright as day, which is many times brighter than a candle. If it were replaced by Hanyuan Palace's Dugu Loss, the old ministers would have been scared to the point where they saw this posture.

The courtiers were surprised and delighted, they had only seen the drawings, but had never seen the real thing. To be honest, some people can't help but be skeptical about these steam engines, trains, etc., after all, they are all theoretical things. But when I really saw this solar lantern, everyone believed it.

Li Baoguo salivated: "Your Majesty, is there anything else?"

Li Ji Hubao was anxious: "I'm just this one, don't even think about it."

It turned out that when Li Ji came back with Du Fangying, he still brought a cardboard box. In addition to various science and technology books, it is this solar lantern.

Because Li Ji really can't stand the night of the Tang Dynasty, how can the candles compare to these electric lights.

The ministers gathered around and were amazed, they were really full of curiosity about this solar lantern.

"This is electricity, formless and substantial, but full of energy."

"Good baby, it's so bright, it's just a little sun."

"How can there be so many treasures overseas? Your Majesty, how the hell do you know so many things? It was Shangguan Huixing who asked this question, and he asked the question that everyone wanted to know.

Some people have asked before, and they all wonder how the emperor learned so much knowledge.

Li Ji didn't answer before, but this time he just smiled: "This, I can't know from outsiders." You just need to know that there is a kingdom of God overseas, and this country has unlimited technology. ”

The ministers immediately believed it, because what Li Ji taught them was definitely not theology. It is unbelievable that there are countries overseas that can have such a level of science and technology. In Li Ji's words, every household in this country has electric lights, and steam locomotives are all over the country, which makes people excited to think about it.

"Do you want it?" Li Ji looked at Li Baoguo.

Li Baoguo nodded like a shrimp: "Think about it, Your Majesty wants to reward Weichen?"

"If you can build a steam engine, I will give it to you."

Li Baoguo was overjoyed: "Thank you Your Majesty for the reward!"

"Okay, scatter, get out." Li Ji hurriedly put away the solar lamp and said to Youwei: "Youwei, take it back."

The ministers were reluctant to give up, and they all wanted to continue to study the principle of this solar lamp. It's a pity that Li Ji was reluctant to put it away after a few glances.

After dispersing, Li Ji looked at the solar lantern: "Pack the box and get me to the Lizheng Palace."

Youwei was taken aback: "Your Majesty, will it scare the queen mother?"

"What are you afraid of, the queen is also my protégé, send it over, don't open it yet."

In the Lizheng Palace, Zhang Wanxi is pregnant and has been three months old. But she has some vague pain in her abdomen recently, but fortunately, the pain is not severe, and she is thinking about letting the imperial doctor come to take a look tomorrow.

"Niangniang, Your Majesty asked the slave to bring this box over." Youwei led a few eunuchs to carry a wooden box and put it into the hall.

Zhang Wanxi was a little uncomfortable, she frowned: "What is this?"

"Your Majesty said that he would tell Niangniang when he came back."

Zhang Wanxi's curiosity rose: "What's wrong with him again, open it."

Youwei shrunk his neck: "This, the slave doesn't dare."

"What are you afraid of, let you open it, just say that I asked you to open it." The more this is the case, the more curious Zhang Wanxi becomes.

Youwei shook his head: "Niangniang, this key is not on the slave maid, it is in Your Majesty's place, Niangniang should wait for Your Majesty to come and open it."

Fortunately, the wooden box is locked, but it's a pity that Zhang Wanxi's eyes fell on Youwei's waist. I saw a copper key hanging from Youwei's waist, and there were no three hundred taels of silver here.

"You said the key is with Your Majesty, what is it?" Zhang Wanxi asked.

was told through his heart, Youwei's face turned red: "Niangniang, slave, this slave and maid forgot, it turned out that His Majesty gave the key to the slave and maid for safekeeping."

"Turn it on." Zhang Wanxi ordered.

Youwei had no choice but to take out the key to open the wooden box, and then Zhang Wanxi saw the solar lamp.

"What is this?" Zhang Wanxi strangely stepped forward to take a look.

"It's an electric light, I gave it to you." Suddenly, a voice came from behind him, and Li Ji didn't know when he had come.

"Electric light, this is electric light?" Zhang Wanxi had listened to Li Ji and the arithmetic students and knew what an electric light was.

Li Ji nodded: "This is a solar lamp, the difference is that it uses batteries."

"Oh, it's DC." Zhang Wanxi blurted out.

Li Ji was surprised and delighted: "Amazing, queen, you actually know what direct current is."

"Didn't you say it, the solar batteries are all direct current." Zhang Wanxi scoffed, she didn't quite believe in Li Ji's theories.

"Yes, go, hang up this electric lamp for me."

Youwei hurriedly instructed the little eunuch to bring a wooden ladder, hang two light bulbs in the Lizheng Palace, and put the solar panels on the roof to fix them.

Li Ji took the switch: "Queen, wait for me to press it like this, and this room will be as bright as day."

Zhang Wanxi was a little expectant, but she didn't believe it: "Then you press it."

Li Ji pressed it, and as soon as the red switch was turned on, the two light bulbs did not respond.

Zhang Wanxi pursed her mouth: "Wow, it's so bright, the concubine thinks it's noon."

If someone else had spoken like this, Li Ji would have killed him a long time ago. Zhang Wanxi laughed at herself, Li Ji was still angry, he raised his head angrily, only to see Zhang Wanxi with a smile on the corner of his mouth, looking at him playfully.

Although she is said to be an old husband and wife, Li Ji still thinks she is very beautiful, very beautiful.

Zhang Wanxi grinned: "The concubine is wrong, she shouldn't make a joke about Your Majesty." He stuck out his tongue as he spoke.

Youwei hurriedly walked over: "The slave should be damned, the slave forgot to wiring."

Soon, the light wire was connected. When the switch was turned on again, the entire Lizheng Hall was brightly lit up, and it was lit up brightly.

This time it was Zhang Wanxi's turn to be taken aback: "It, it's ......"

The palace maids and eunuchs in the Lizheng Palace were even more frightened, they had seen such strange things there, could this be the night pearl in the Dragon Palace of the East China Sea? They fell to their knees in fright, bewildered.

"Hahaha, what's the matter, I didn't lie to you." Li Ji was proud.

Zhang Wanxi looked at these two light bulbs curiously, she couldn't believe that there was such a bright thing in the world. Looking at the whole room again, I don't know how many times brighter than the flickering candles.

"Queen, you like embroidery, so I let this electric light hang it here, so that you can see more clearly at night." Li Ji said softly.

.。 m.