I was watching short videos and was seen by ancient people

Chapter 249 He is the pioneer of Chinese chemistry ()

"Cockroach Mantis: My grandparents' generation still called soap alkali [sobbing] [sobbing] [sobbing]. 》

People in various dynasties realized when they saw this. It turned out that the alkali was the plant ash when they made soap.

But looking at the introduction on the marquee, they felt that there must be something different.

After all, the soap they made was different from that of later generations in Tianmu Mountain.

Not only are there more impurities, but the decontamination effect is not that good.

Moreover, in order to make soap, the nearby vegetation ash is no longer enough. They are also eager to learn the process of making alkali on the sky screen again, so that they will have no worries when making soap.

Some people saw the sky and said that alkali can make steamed buns white and sweet. They filtered the plant ash many times and boiled the water in it for a long time before using it to make noodles.

It's just that the results are not as white and sweet as what is said on the sky screen.

They felt that Tianmu was lying. After all, the alkali produced from the plant ash did not have such effect.

At the same time, when some people recalled what they had done, they realized that the plant ash was not equal to alkali.

After emperors of various dynasties saw the comments on the marquee, they realized the role of this alkali. It turned out that it not only made steamed buns white and sweet, but could also make soap.

But if it only had such a role, the person introduced on the curtain should not be praised by the court.

And now that it is praised by later generations of courts, it must have other functions.

They hope that the function and production method of alkali can be explained in detail on the marquee, so that they can make and use it easily.

By that time, they can also eat white and sweet steamed buns.

"Kekekai: I have a large alkali-making factory here with more than 10,000 employees. They use Hou's method of making alkali. There is always a statue of him in the factory. Half of the people in the district rely on this factory. Life. 》

This……

After people from all dynasties saw this comment, they were shocked. They did not expect that a mere method of making alkali could feed a factory.

What surprised them even more was that there were so many employees in this factory! If converted into households, almost every county has people working in this factory at this time.

If this is the case, this person needs to be praised. After all, he can be said to be the food, clothing and parents of more than 10,000 people.

At the same time, people in various dynasties slowly understood that factories could not only have dozens or even hundreds of people, but could also have such a scale.

They also hope that there will be a factory of this size in their own era, so that they will have jobs to earn money, or to make their families live a better life.

The emperors of various dynasties watched the video on the sky screen. Some of them did not understand that the merchants of later generations had such strength and were able to support so many employees.

They still don't understand, are the later courts so trusting of those merchants? Aren't you afraid that they will cause chaos?

After all, at this time, they did not dare to give those merchants such great rights. If they were in trouble, it would be very troublesome for the court to vindicate them.

《飞天螳螂：NaCl(饱和)+CO2+NH3+H2O=NaHCO3↓+NH4Cl=2NaHCO3=Na2CO3+H2O+CO2↑，条件为加热。》

"Heavy Snow Falling: Saturated brine is first passed through ammonia gas and then carbon dioxide to produce precipitated ammonium bicarbonate and ammonium chloride. 》

When people from various dynasties saw the comments on the sky curtain, some of them could not understand the words in the sky, and they did not expect that there were such words in this world.

And even for the comment below, they can recognize all the words in it, but they don't know what it means when connected together. It was just a discerning person who still recorded the formulas and words on the canopy.

They are waiting for Tianmu to teach them how to make alkali, and then slowly understand these formulas and words.

At the end of the Ming Dynasty, Zhu Youjian also recorded it. This was not because he had any vision, but because he had a habit of copying homework!

At the same time, he was also waiting for the specific meanings of these formulas and words, so that he could apply these things to his Ming Dynasty and allow the people of his Ming Dynasty to eat white and sweet steamed buns.

Moreover, he had seen the letters above from Xu Guangqi and knew that they were characters from a Western country.

Although he doesn't know the specific meaning now, he believes that Xu Guangqi will definitely know.

The emperors of other dynasties were also aware of the role of these words and formulas, and they also had people record them and wait for their technical officials to study them in detail.

"The Unknown: Hou's Alkaline Method" The Fujian College Entrance Examination takes place every now and then. The textbook only contains a rough outline of the process. When the exam asks you to explain one of the processes, you don't know what to write. 》

"are you bored? : Reaction conditions, temperature, catalysts, everything is a matter of knowledge.

To be more advanced, consider chemical thermodynamics, the density of the reaction solution, and how long to stir for.

How to separate the product and how to industrially purify it.

How to recycle waste liquid from an environmental protection perspective? How many kilowatt-hours of electricity is required for each kilogram of soda ash? 》

When emperors of various dynasties saw the future generations on the horizon, they actually took the test on Hou's alkali-making method every once in a while. They once again realized the role of these formulas.

And looking at the comments above, they also realized once again why later generations were so developed.

This is not only because of the large population of later generations, but also because they are so eager to learn, which makes the lives of later generations slowly get better.

"I Love the Motherland: The Chinese nation is so great!" It all depends on these national backbones. 》

"Follow the Wind: I am guilty. In the chemistry book back then, I painted bangs on his forehead [tears]." 》

Tang Dynasty.

Du Fu looked at the comments on the marquee and felt uncomfortable. After all, the last time he saw the portraits of later generations of students on the marquee being magically altered was himself.

And now that he saw a person's portrait being magically altered, he felt a little better.

When teachers from various dynasties saw the comments on the marquee, they were very angry.

None of the portraits in the textbook are saints, how could they be insulted like this?

If they were placed in their time, such students would definitely be punished!

As for the students of various dynasties, when they saw the comments on the marquee, they looked at the gentleman in front of them and drew according to his figure.

It's just that the drawn avatars have been modified by them, changing their outfits and turning them into a real woman on paper.

After they were sent out, they were watched by students studying together and shared their portraits, making the boring school life more joyful.

(End of this chapter)