Zhu Chao accompanied me to watch short videos

"Sister Man, did you hear everything?" Seeing Li Man staring at her, Luo Li swallowed subconsciously.

"Yes, I heard everything." Although Li Man's face was still pale, her expression was very serious.

"Listen to my explanation. It's not what you think..."

"How come it's not what I thought? You still want to quibble after all this, right? Tell me who that man is? Is he from our school? Do I know him?" Li Man threw out three fatal questions in a row.

man?

What man?

Luo Li was stunned for a moment, then realized that Li Man was cheating her.

I guess she saw me sneaking around behind her back and thought I was in love.

After thinking this through, Luo Li no longer felt guilty and said confidently, "Of course you know that man, he's my dad. My mom saw that my green bubble steps hadn't changed, so she asked him to ask me if anything happened."

"Really?" Li Man looked at Luo Li suspiciously.

"It's true." Luo Li replied confidently.

Seeing that Li Man still seemed to have some doubts, Luo Li quickly handed over the newly bought medicine and tried to change the subject.

She poured a cup of hot water, walked to Li Man, and said delicately, "Da Lang, it's time to take the medicine."

"Screw you!"

As expected by Luo Li, after being teased by her, Li Man immediately stopped worrying about what happened just now.

After taking the medicine, Li Man lay back on the bed, looking a little depressed: "I'm so annoyed. I finally got out to play, but I got sick."

"I guess we played too hard yesterday, or maybe I caught a cold after playing the rapids." Luo Li didn't care.

"I'm sorry, Lolo. I know you've always wanted to see Dugu Xin's multi-sided print. It's all my fault." Li Man's voice was a little dull.

"What nonsense are you talking about? I'll come back later if there's a chance..."

Before Luo Li finished speaking, she turned around and found that Li Man had fallen asleep again. Luo Li sighed helplessly and tucked the quilt for her.

Seeing nothing to do, he lay back on his bed and opened the fighting game.

Ever since she knew that ancient people could also see the videos she watched, Luo Li planned to watch more videos that were helpful about ancient times. As for those "untidy-dressed" men, she could only say that she would never have the chance to be favored by them again.

After a brief loading time, the title of the video appears in the center of the screen.

[Steam family steam engine steam train steam spinning machine]

In the picture, an iron kettle is steaming on the stove, accompanied by the sharp sound of the water boiling, and the lid of the kettle is constantly jumping due to the water vapor.

Seeing this scene, ancient people from all time and space were confused and did not understand what the video was trying to express.

At this time, the narration sounded.

【Did you know? The energy technology that humans have developed so far, in the final analysis, is actually the art of boiling water. 】

[If there really are Trisolarans, from their perspective, the people of Blue Star have not changed from thousands of years ago to the present day, except that they are boiling water in various ways.]

[For example, Watt first came up with the idea of ​​improving the steam engine while boiling water.]

——"Watt boils water, and I boil water, so I = Watt."

——"Top level understanding!"

——"I boiled water so that my girlfriend could drink more hot water, and she called me a straight man. Straight man = me = Watt. In summary, Watt is a straight man."

——"I boil water, Watt also boils water, so woman = me = Watt, so Watt is a woman?"

[In 1831, American scientist Faraday discovered the phenomenon of electromagnetic induction and invented the world's first generator based on this principle.]

[But the generator also uses boiling water to generate steam, which then drives the flywheel to move, cutting the magnetic field to generate electricity. ]

[In the 20s, people began to study nuclear fission, nuclear reactors were built in the 30s, and nuclear power plants were built in the 40s. Nuclear energy development technology has become increasingly mature.]

[However, most current nuclear reactors use uranium 235 as the main nuclear fuel, which releases a large amount of heat energy in a short period of time through a chain reaction of nuclear fission, and then uses water to absorb energy to generate water vapor to drive the turbine group to achieve the purpose of power generation. ]

[In short, such high-end nuclear energy is essentially just boiling water. ]

——"OK, I get it. I boil water = researching nuclear energy, and let my girlfriend drink more hot water = using nuclear energy. Let's see who dares to say I'm straight in the future! This is called scientific research!"

——"It only takes a few seconds. It's faster to solve problems with a formula."

[Friends who often travel through time know that even if you travel back to ancient times with nothing, as long as you understand the basic principles of the steam engine, you can easily make a steam engine by hand and become a winner in life. If you know more, it will not be a problem to lead an industrial revolution.]

"Can this steam engine be made in our time?" Upon hearing this, the ancient people suddenly became excited.

Although the specific use of this thing is still unknown, the fact that it is praised so highly by later generations shows that it must be very useful.

[In fact, the structure of a steam engine is very simple. It consists of only two parts: the boiler and the engine. ]

[The function of a boiler is to boil water and produce superheated steam. ]

[The engine uses this steam to push the piston, converting the steam's thermal energy into mechanical energy to drive the machine. As long as the boiler continues to produce steam, the engine can continue to work.]

[Does it sound simple? In fact, it is indeed simple. As long as you understand this principle, you can easily make it even in the Qin Dynasty. ]

[The boiler for boiling water can be made of iron, while the piston and cylinder are made of cast iron. The only difficulty is that the diameter of the piston is slightly smaller than that of the cylinder. This size is not easy to grasp, but considering the craftsmanship of the Qin bronze chariot, this difficulty is simply a free point. ]

——"Nonsense, if you don't answer the easy questions well, it will become a fatal question. Guess which is more difficult, this craft or the Nine Clans Elimination Game?"

——"Why are you going into so much detail? You don't really think I can travel through time, do you? No way, no way, no one really thinks they can travel through time, do they?"

Seeing this comment, Luo Li silently gave it a thumbs down.

——"That's not right. What about the rubber? Also, how can I rub it by hand without parameters?"

——"Rubber is natural, and it can also be replaced by beef tendons or something like that. As for the parameters, we have to experiment slowly. But didn't the original steam engine have parameters either?"

Qin Dynasty.

When Ying Zheng heard the voice from the sky mentioning that his Great Qin had the ability to make steam engines, his worries immediately disappeared.

What he was most worried about was that the future was too far away and some technologies were not mature enough. Even if he knew the principles, he would be powerless to do anything about it. Now it seems that he was worrying too much.

However, although this thing has an ingenious structure, what is its use?

……

tomorrow.

Zhu Di vaguely guessed the use of the steam engine. Since this thing can run continuously, then are the vehicles running on the road in later generations, as well as the high-speed train that Miss Luo took, all driven by this kind of machine?

Thinking of this, Zhu Di's heart felt hot and his eyes were full of anticipation as he looked up at the sky.

Qing Dynasty.

Qianlong stood in front of the window, with his hands behind his back, thinking, while Heshen served him carefully.

Seeing Tianmu explaining the principle of the steam engine, Heshen asked cautiously: "Your Majesty, are we still going to build this steam engine?"

In fact, he could see from the fact that Qianlong arranged for people to study in the West that Qianlong still wanted to learn these "strange and clever skills".

But these past few days, Qianlong was really in a bad mood due to the arrangement of the sky curtain, and his thoughts became more and more unpredictable, so he asked this question.

"What do you think?" Qianlong asked back with a hint of amusement in his tone.

He Shen lowered his head and pondered for a while. He was a little unsure, but he really had to answer, so he had to answer according to Qianlong's previous thinking: "I think there is no need to manufacture it. This machine is obviously used to replace human labor. If people save labor, the people will have nothing to do and will make trouble out of nothing."

"Do you mean that when people are well fed and well clothed, they will think about sex?" Qianlong looked at Heshen expressionlessly.

"Your Majesty is wise. As the saying goes, when the machine starts to work, people's hearts will be scattered. It's better for people to be busy."

Qianlong chuckled, with a hint of sarcasm in his tone: "Your Excellency has his own opinions, so is this the reason why all the people on this list are good-for-nothings?"

Qianlong threw the list of students going to study abroad in the West in Heshen's face.

"Pfft!"

He Shen immediately knelt on the ground and kowtowed: "I deserve to die, I deserve to die, it is because I don't know people well, but, but these people are definitely loyal people."

Heshen did not explain whether he accepted the money or not, but emphasized that he selected the personnel strictly in accordance with Qianlong's requirements.

What was Qianlong’s request?

loyalty!

These two words sound simple, but in fact they are the highest requirements.

Loyalty is not absolute, it is absolutely disloyal.

How can we guarantee the absolute loyalty of these people?

First of all, he has to be a Manchu. Just being a Manchu is not enough, he also has to be a descendant of the Eight Banners.

But let’s not talk about how useless the Eight Banners descendants are. Even if there are some good seedlings, they are not willing to go all the way to a foreign country to suffer, so those who are picked out are all defective.

Qianlong also understood this, so he just took the opportunity to warn Heshen, but did not really make things difficult for him.

Oh, damn, why is it so difficult to do something?

……

The marquee continues to play.

[Once you master the secrets of the steam engine, you will open the door to the world of machinery. ]

[Take the steam locomotive as an example. The principle of this thing is not complicated. It is also burning a boiler. Adding some high-quality coal in the boiler will generate a lot of heat, which will be continuously transferred in the pipe. ]

[The water around the pipes will be heated to boiling by this heat, and a large amount of water vapor will be produced. This water vapor will be collected in a dome container at the top and transported back to the boiler through pipes for reheating, thereby increasing the temperature and pressure of the water vapor. ]

[When the temperature and pressure of the water vapor reach a certain level, they will be transported to the inside of the steam engine through specific pipes, thereby working outward, driving the machine to operate, and providing a continuous source of power for the train. ]

After the narration ended, a dynamic simulation of a steam locomotive working was played on the sky screen, transforming the abstract theory into an intuitive animation.

The ancient people were originally confused by the theory, but after seeing the simulation animation, they suddenly understood a lot more.

——"The person who invented the steam locomotive is a genius. What's wrong with his brain?"

——"I'm from the Northeast, and sometimes when it snows you can still see the old green trains."

——"What you are talking about is not the same as the one in the video. Green trains are usually diesel locomotives, while the one in the video is a steam locomotive. It is the grandfather of green trains."

——"I'll teach you a way to distinguish a diesel locomotive from a steam locomotive. The sound of a diesel locomotive is 'pants...pants...pants...woooo~', and the sound of a steam locomotive is 'naked...naked...naked...woooo~'. Now you can tell them apart, right?"

……

Three Kingdoms.

Zhang Fei watched the animation for a while, and suddenly felt that his clever brain had gained the upper hand again. He shouted to Liu Bei: "Brother, I understand. Isn't this just putting the kettle sideways?"