Change the Tang Dynasty Li Yuanba

Chapter 49 Discussion of the Steam Engine
Li Cha couldn't help being surprised when he saw the small steam engine that was gurgling and steaming, driving the small wooden cart around the stove.The kids are now tinkering with the initial prototype of the steam locomotive.

"Have you fiddled with this thing now? Can you understand it?" Li Cha asked.

As soon as the students heard Li Cha's voice, they immediately stopped discussing and collectively said, "Hello, teacher."

"Well, students, can anyone answer my question?" Li Cha replied.

"Teacher, isn't it a matter of energy conversion? Isn't this what you taught? You said that the industrial revolution started with the steam engine. Then we studied steam and converted the heat energy generated by steam into kinetic energy. Let Yuchi Baolin build For this steam engine, we can’t find a suitable sealing material now, so the energy is wasted. Also, how many gears are suitable, how big are suitable, and what to burn to heat water in the future is more affordable, isn’t that what we were discussing just now.” Qin Huaiyu, who specializes in physics, said.

"Teacher, I have studied petroleum. The heat energy produced by the combustion of petroleum is much more than this steam. If it is sealed well, we can completely replace this steam with petroleum. This steam engine is simple, but it is too troublesome to use. It's just me I haven't found the right entry point yet, and I haven't thought about how to ignite the oil from the inside of the container. Teacher, do you have a way?" said Wang Jianye, a classmate who majored in chemistry.

"This, um... um..." What can I do about this?I can't get the spark plug out now, so you should ask your classmates who study electricity.Li Cha was speechless for a while.

"It's better to use my black gunpowder than to use oil. I guarantee that the car will run fast, but it burns too fast and the cost is a bit high. Hehe, I still think the trinitrotoluene that the teacher said is better. My black powder is good." Fang Yiai, a war fighter, still can't forget his TNT.

Li Cha got dizzy for a while, others were discussing issues, you are here to make trouble, you also use black powder, the car runs fast, why don't you use it to push the shells?Trinitrotoluene is better, why don't you use nuclear energy directly.

"It's useless not to talk there, you'd better stabilize the performance of the black powder for me before you talk about anything else." Li Cha said angrily.

"I don't know, I don't know, it's like this every time, let's discuss it among ourselves, the teacher doesn't know anything." Fang Yiai muttered suicidally.The classmates around me also laughed.

They are really not afraid of Li Cha now.This kind of scene has happened many times, and Li Cha is often left speechless by their questions.So, when they couldn't get a definite answer from Li Cha, they really put Li Cha aside and started discussing on their own again.

Li Cha, who was left alone, asked the sky speechlessly.What kind of monster is this.

In fact, what Li Cha didn't know was that they weren't really so evil, it was just that Li Cha pulled them back from the road of dandies waiting to die. They cherished this opportunity very much, so they worked harder.

What's more, the 20 years that Li Cha's later generations have learned is a comprehensive study, and they only focus on one subject.

The last point is, in fact, all of this is an illusion. They are just taking out what Li Cha taught them and trying to apply it. The starting point that Li Cha gave them is too high.For these children, the road of rejuvenating the country through science and technology has just begun. Li Cha has just handed over the foundation to them. There is still a long, long way for them to walk on their own.

"Teacher, you really just stand there and don't care about anything? Come and give us some advice." Cheng Chumo yelled without hesitation, waking up Li Cha who was caught in a beautiful imagination.

Just kidding, Li Cha is omnipotent in the hearts of the students. Although Li Cha has taught them almost everything he can think of, it is still possible to give them some directions for future research.

"You guys, let's put this thing away first. It's still a little early. First of all, we can't solve the problem of airtightness. The teacher knows that there is a material that can achieve good airtightness, but we don't have it in Datang. Take it from a far away place. The problem of sealing needs to be studied by your students who are majoring in chemistry. Wang Jianye said that it is feasible to use oil. But ignition is another big problem. This also requires your students who study electricity. Let’s talk about the results. The development of science and technology can never be completed by a single subject, it needs all subjects to cooperate with each other. Wait, see you are so good, the teacher is proud of you. The only thing the teacher can do now is to build a real college Get up and call together strange people from all over the world to advance together with you. When you teach batch after batch of students, you support each other and conduct research together. At that time, the flower of science and technology will officially bloom in our Tang Dynasty. "Li Cha said.

"Teacher, we can solve the problem of airtightness. The one you see is just a rough experiment made by myself. If our skilled blacksmiths in the Tang Dynasty make it carefully, we can build a steam engine that doesn't run out of steam. Can you Don't underestimate the craftsmanship of our blacksmiths." Yuchi Baolin interjected.

"Hehe, Baolin, have you ever calculated how long it takes for a skilled blacksmith to build such a sophisticated steam engine? How many such skilled blacksmiths do we have in Tang Dynasty?" Li Cha asked back.

"Well, but my precision machine tool is about to be produced. When the machine tool is produced, can't we make a large number of machine tools, and a large number of steam engines that don't run steam?" Yuchi Baolin replied.

"Then what energy do you use to drive your machine tool? Manually?" Li Cha asked again.

"Ah? My first thought was to use this steam engine to push it. Isn't the power of steam stronger than that of a human?" Yuchi Baolin continued.

"Baolin, the teacher told you that the steam engine cannot move your precision machine tool. Your machine tool is used to process pig iron or even refined steel. The steam engine will definitely not be able to move it. The best way is to use electric energy to drive it. "Li Cha replied.

"What about the oil? Is the oil head office?" Yuchi Baolin was in a hurry. He didn't want the thing he developed with painstaking efforts to become a waste before it was born.

"Oil can indeed, so let's go back to the question just now, how do we ignite oil in a well-sealed cylinder? Still need to use electric sparks. Your precision machine tool is destined to not be used in a short time. "Seeing Yuchi Baolin's anxious look, Li Cha really couldn't bear to hit him, but the facts are the facts, so Li Cha still said it out.

As soon as Li Cha's words fell, Yuchi Baolin scratched his head anxiously, wanting to refute Li Cha's words, but there was no reason.Yuchi Baolin's mind is very simple, all his knowledge was taught by Li Cha, so he believed when Li Cha said that the steam engine could not move the machine tool, and he also believed that the precision machine tool could only become a decoration in a short time.

Regardless of age, Li Cha felt a little distressed by the fact that a 1.8-meter-long burly man was so aggrieved that he wanted to cry in front of him, but he didn't know how to comfort him.Li Cha could only step forward and pat him on the shoulder lightly to express his comfort.

There was no discussion at the scene, and it fell into silence.Everyone was in a sad and desolate state, feeling sad for Yuchi Baolin.

It was at this time that the little fat man Li Tai said: "Teacher, what you said is wrong. You have taught us that there is a solution to everything, but we haven't thought of it for the time being. You just put Yuchi Baolin's It’s definitely not right for the results to fall into the cold palace, and we must be able to find a way. I’m not a physics major, so I can’t think of a specific way, but I have an idea, maybe I can help Yuchi Baolin.”

"Oh, Qingque, come and listen to me." Li Cha was very surprised, he couldn't solve the problem himself, Li Tai would think of a way?

At this time, all the students turned their attention to Li Tai, quietly waiting for Li Tai's solution.

"Teacher, I remember you said a word when you first taught us about the 'action of force' in physics. You said that if you give me a lever long enough, I can move the earth. That is to say, through the principle of leverage, the force It can be enlarged infinitely. So as long as Yuchi Baolin and the others can find a suitable method, then there is no such thing as a steam engine that cannot drive a precision machine tool. I believe they will find a way." Li Tai said confidently.

"Yes, I have figured out a way. As long as there are enough gears, the front gear is small enough and the rear gear is big enough, all the power can be stored on the big gear, and then pass through another set of gears, which is enough to drive the machine tool Thank you, Li Tai." Yuchi Baolin danced and hugged Li Tai who was beside him, and turned around three times on the spot.

This stunned Li Tai, you beat me not long ago, it wasn't you who was locked up?Are you so close to me now?But looking at the students around him who were full of smiles and shouting happily, Li Tai also showed a smile on his face.It's a great feeling among my classmates.My eldest brother may never experience this feeling in his life.

And Li Tai's words also made Li Cha fall into deep thought.

Yes, I took it for granted. I was used to the diesel engines and electric motors of later generations, so Li Cha naturally looked down on this steam engine.He also naturally thought that the power of the steam engine could not move the lathe, or that he never thought of using the steam engine, but only wanted to develop the internal combustion engine in one step.But after hearing the discussion of his classmates, Li Cha felt that it was time for him to reflect.

Seeing that his students are so outstanding, and his theories have become new products one by one, Li Cha is a little carried away.I always feel that I can lead this group of children to the sky.But I forgot the saying, it is impossible for a person to become fat with one bite.

Regardless of whether Yuchi Baolin's set of gear concepts works or not, whether it can drive his lathe to work, but their research direction is always correct.It is definitely not empty talk that the steam engine drove the industrial revolution.The internal combustion engine is still a long way off, and the steam engine will play a huge role in that time.

Thinking of this, Li Cha cleared his throat, and said to the elated students: "Students, your conclusions are correct this time, and the teacher is self-righteous. Today, you taught the teacher a lesson. You have already done it in many ways. Better than the teacher, the teacher is proud of you. You continue to study this steam engine, it will be of great use. The teacher supports you."

"Oye!" the students yelled proudly.It is their greatest pride to be recognized by Li Cha.Li Cha was also full of pride when he looked at the group of energetic children in front of him.

After being lively for a while, Qin Huaiyu in the crowd shouted to Li Cha: "Teacher, when will our college be built? We have too few people and too few things we can think of. We need more Like-minded people join us and discuss it. We can't wait."

"Yes, teacher, the money in the money bank in the school is rusted. If there is not enough money, we will go home and ask for it. At worst, I don't want anything at home. I leave everything to my elder brother. All I want is money." , I will let my father divide the family property now." Fang Yiai booed.

"How much money can you share with the second son? If the money is not enough, the three of us go back and empty the money bank of Duke Lu's mansion. Anyway, sooner or later it will belong to the three of us." Cheng Chumo shouted.

"And me, our family has money too. I'll ask for it when I go back, and my dad will give it to me." This was Yuchi Baolin, the big black man.

"Well, count me in." The gentle Qin Huaiyu also joined in.

"There's still me", "There's still me", "I'll go home and share the family property." The remaining students were not to be outdone, and expressed that they wanted to go home to divide the family property and use the money to build the college.

The uproar made Li Cha both want to laugh and be moved.If you just go home and take money like this, there is no need to build this college.It's strange that your fathers don't go to the emperor to cry together.

"Students, the college will be built soon. You don't need to worry about money. You have already helped the teacher a lot. Now you need to prepare well, put away all the experiments in your hands, and put your theories to good use." Sort it out, whether it is mature or immature, as long as you think of it, record it. There will be more time for experiments in the future. If there is no accident, at this time next year, you will step into the gate of the academy and become A glorious teacher who has taught batch after batch of students, and they will work with you to improve your immature theories and change our Tang Dynasty with you." Li Cha said impassionedly.

"Ow!" The excited shouts of the students greeted Li Cha.

Looking at the passionate children in front of him, a knowing smile appeared on the corner of Li Cha's mouth.He is full of hope for the future of these children, and also for Datang's future.Perhaps with these first batch of pioneers, after all, the giant Richard is taller than the giant Newton said.Many of the knowledge theories taught by Li Cha are already mature, which can save them many detours.

Now Li Cha is not going to wait any longer.He is going to start preparing to start building a comprehensive university.Find some helpers for these children early, so that they can support each other and advance at full speed on the road of technology.

(End of this chapter)