Change the Tang Dynasty Li Yuanba

Chapter 38 Magical Chemistry Experiment

After all the students arrived, Li Cha started his first class of changing Datang.

"Students, before the teacher gives you the first class, the teacher will do two experiments for you to let you see how amazing what the teacher will teach you in the future. Now that the teacher is doing it, you are optimistic about it. .” Li Cha said.

In yesterday's speech, Li Cha just wanted to plant a root in the hearts of the children, making them feel that he is not as useless as their parents said, but a person who is very useful to Datang.And today's class is to fully mobilize their enthusiasm for learning.

"Take care of the teacher's operation, you will see the magic of science." After finishing speaking, Li Cha took out the two buckets of ten catties of low-quality salt that Meng Huhu bought from Chang'an City yesterday.

Why did you buy it from Chang'an City? There's no way. The entire Shiqiao Village doesn't have this kind of inferior salt. Li Shimin has never treated the Xuanjia Army who accompanied him through life and death badly. The worst salt in the village is his belly. Such a large amount of coarse salt, and Li Cha demanded that the lower the quality of the salt, the better, so Meng Huo could only go to Chang'an City and buy two buckets back.

Li Cha divided the two buckets of salt into two parts, and directly called Cheng Chumo and Yuchi Baolin to come over. Who made these two tall and burly people stand out in the crowd, they have strength at first sight.

"Crack these salt cubes into pieces. You two are in charge of that bucket, and I'm in charge of this bucket." After speaking, Li Cha picked up a small hammer and smashed the big salt cubes into very small particles.Cheng Chumo and Yuchi Baolin on the side also followed suit and smashed the big salt block into small particles.

Then Li Cha put the low-quality salt that he smashed into the wooden barrel, continuously added water to it, and kept stirring with a wooden stick until the water dissolved all the salt.Cheng Chumo and Yuchi Baolin followed suit, repeating Li Cha's movements.Two buckets of inferior salt were all made into a saturated solution of salt.

Then there is filtering, which is low-quality salt that can be eaten, so Li Cha didn't bother too much.He directly found two other wooden barrels, covered them with four layers of sackcloth and fixed them, and slowly poured the saturated salt into them.

After all the solution was poured into the other two wooden barrels, Li Cha found that although these large salt blocks were inferior salt, there were really very few impurities in them, leaving only a sparse layer on the linen, which was unnecessary at all. secondary filtration.

Next, it was time to remove other substances other than sodium chloride. As for the principle, Li Cha didn't understand, he only knew that activated carbon was used in the experiments of later generations, and he could only use crushed charcoal here.

He took a huge funnel and smashed the charcoal into pieces. Li Cha wrapped the charcoal grains in four layers of linen and stuffed them into the funnel, squeezing them tightly. He found a shelf, fixed the funnel on the shelf, and poured the solution into the funnel. After a while, the light blue solution slowly flowed out and flowed into the wooden barrel under the shelf. I dipped a little bit with my finger and tasted it. Yes, it only had a salty taste and no bitter taste.

Then Li Cha poured the two buckets of solution into the two large iron pots that had already been set up, lit a fire and boiled it up. Li Cha was in charge of stirring one of the pots, while Cheng Chumo and Yuchi Baolin were in charge of stirring the other pot.

In fact, not much table salt was lost in the whole process. Although these large pieces of salt are inferior, they are still edible, so there are very few impurities.Most of the lost salt was stained on the sackcloth.

With the evaporation of water, the saturated solution of table salt slowly precipitates fine salt crystals, until finally, all the water evaporates and the powdered green salt spreads a thick layer on the bottom of the pot.Li Cha picked up a piece with his hand, crushed it when he squeezed it, and the broken table salt was exactly the same as the green salt that dignitaries usually clean their mouths.

The whole process was carried out under the noses of Meng Huo and the students, even Cheng Chumo and Yuchi Baolin did it by themselves, but the green salt at the bottom of the pot stunned Meng Huo and the students.

what's the situation?The low-quality salt that they never eat at home has turned into green salt that they are reluctant to use at home just by cooking it like this?

"Do the students understand what's going on?" Li Cha asked.

All 71 students shook their heads, it seemed to them that it was magic.They understand the specific process, and they can do it, but they all know that the teacher is not asking about this, but about the principle, how can they understand?
"Hahaha, this is the knowledge that the teacher will teach you in the future." Li Cha laughed, and then Li Cha said seriously: "But from now on, put everything you have learned from me in your mind Here, you can’t tell anyone, including your parents and elders, you can’t say it until I allow it, have you heard?”

"I would like to obey the order of the master." The students who had received Li Cha's terrifying image from their parents did not dare to have the slightest thought of disobeying Li Cha's order.

"Brother Meng, bring a bucket." Li Cha called Meng Huhu.

Meng Huo hurriedly ran to the back room and took out a bucket for weighing. Li Cha carefully crushed the boiled green salt and poured it into the bucket. One bucket was full and the other was half full.Of course, this is not how much salt is lost, but the gap between the large pieces of salt is too large, so the salt seems to have lost a lot. If it is weighed, it will not be so obvious.

"One bucket and a half, one bucket brings more than half of the bucket, this is too amazing." Meng Huo said excitedly.

"Brother Meng. Do you think my business can make money?" Afterwards, Li Cha said to Meng Huo.

"Brother Li, this is green salt. By cooking it like this, you can turn the low-quality salt eaten by ordinary people into green salt that usually costs a bucket of green salt?" Meng Hu's eyes were straightened.

"That's right, this is the first lesson I taught them. This is chemistry. Simply turn low-quality salt that costs less than ten cents a bucket into green salt that usually costs a bucket." Li Cha said proudly .

"However, Brother Li, the green salt produced by the salt well in Guanzhong Road is enough for the nobles of the Tang Dynasty to clean their mouths. Who are you going to sell the green salt you make? Ordinary people don't know how to use it. What about ordinary people? There are so many exquisite people here, they never clean their mouths." Meng Huo said worriedly.Meng Huo has not turned the corner until now, never thought that this green salt can also be used for eating.

"Hahaha, brother Meng, just put your heart in your stomach. This salt is definitely not sold to ordinary people. I can't explain it to you. I'd better talk to the emperor tomorrow. Anyway, you just wait. Someone treat you to dinner. Hahaha." Li Cha laughed loudly.

"Students, isn't it amazing? This is the science that the teacher will teach you. This science has many branches, such as chemistry, physics, biology, machinery, etc. The process of making salt just now is the simplest in chemistry. The process from saturation to precipitation. Next, the teacher will let you see what magical things will happen in the process from distillation to condensation."

"Brother Meng, go get three jars of wine, Cheng Chumo, Yuchi Baolin, you two go get two barrels of cold water." Li Cha ordered.

After a while, Meng Huo and his two children brought three jars of wine, and Cheng Chumo and Yuchi Baolin also brought cold water.

Li Cha first poured the wine into the large iron cylinder. The three jars of wine were about [-] catties, accounting for about a quarter of the capacity of the large iron cylinder. Then Li Cha poured cold water into the empty space in the middle of the next set of barrels. part, used as condensate.Finally, Li Cha started to light the fire.

This time Li Cha didn't borrow someone else's hand, because there is no thermometer, so Li Cha can only slowly burn the fire according to his own feeling, if the temperature is too high, the steamed wine will not meet Li Cha's requirements.

As time slowly passed, the evaporated wine, after condensation, began to drip down from the wine outlet at the bottom, and the speed became faster and faster. Finally, it changed from a drop to a small stream of water.Li Cha had already put it in the vat that received the wine.When the water started to flow down slowly, Li Cha took out the small bowl that he had already held in his hand, stretched it over, and took half of it.

Then he took a sip immediately, "Haha, it's done." Li Cha suddenly became excited and laughed.

As more and more spirits flowed out.Bursts of strong wine fragrance overflowed, [floating all over the yard.

The three brothers of the Cheng family, together with some dudes who are fond of wine, smelled the aroma of the wine, stared eagerly at the vat that received the wine, swallowed silently, and tried their best to restrain their legs that wanted to get close to the vat. Cha and Meng Huhu are here, if they were other gentlemen, they might really ignore it and step forward to try something new.

Meng Huhu was even more greedy, but he was too embarrassed to ask for it, and he hesitated to speak.The reason is the same as that of the students, who told him to face Li Cha, if it was someone else, drink first and then talk.

For people who are good at wine, they don't need to taste it at all. They can tell when they smell the wine. Only the emperor Li Shimin, and only Li Cha, can suppress their own behavior.

Li Cha took another bowl, handed it to Meng Huhu, and said, "Come on, Brother Meng, have a taste."

Meng Huo couldn't bear it anymore, took the wine from Li Cha, and drank it in one gulp.That's how he usually drinks.

"Oh, I said Brother Meng, take it easy, you can't drink this wine like this." Li Cha hurriedly stopped Meng Huo's behavior.

This is not what they usually drink.It hasn't been long since it was heated, and the alcohol content in the few kilograms of wine that has just come out is quite high.How can there be more than sixty degrees.After pouring it down, the taste is no small matter.

This is also a loss because it has produced a few catties. If you dare to start with the half catty of wine, it is estimated that the alcohol concentration can reach [-] degrees.It is not an exaggeration to say that it is highly alcoholic.

However, Li Cha's reminder was too late. Meng Huo, who had been drinking a bowl of wine, suddenly opened his one eye, protruding scary, and then his expression became very weird. that expression.

"Brother Meng, are you okay?" Li Cha asked with concern.This person who was cultivated by low-alcohol wine suddenly drank a bowl of high-alcohol wine in one gulp. This feeling is really uncomfortable.

"Brother Li, this wine is really strong. Good wine, good wine."

After a long time, Meng Huo finally regained his composure and choked out such a sentence.

"Brother Meng, I want you 300 Wen for this wine, do you want to drink it?"

"Drink, definitely drink. I have the salary of the Duke of the state, and I still have a good drink. What do I do with the money? I definitely drink it. I think all civil and military officials will grab it. 300 Wen is less, and 500 Wen will be enough." grab."

"Hahaha, Brother Meng, you are getting more and more good at doing business. If you like me, I will set the price at 500 Wen."

"You don't have to look around. Drinking is not allowed during class. Today is after school. I'll give you a good drink. Now install the altar, and I'll bring it into the palace tomorrow." Li Cha looked at the students around him eagerly looking at the wine. Said.

"However, you have to remember the teacher's words. This drinking should be done in moderation. Anyone who gets drunk and acts like a drunkard will be severely punished. Also, this wine can only be drunk at school, and you are not allowed to take it out, and you are not allowed to leak this steamed wine." During the process, when you get home, you are not afraid that you will not be able to drink, and when you go home with Huo Mu, you should have it at home." Li Cha warned.The folk custom of Datang is good wine, and Li Cha has no intention of changing this, as long as there is no delay.

Li Cha would taste the concentration of the steamed wine every once in a while, until it was not so strong, about [-] degrees, Li Cha closed the wine outlet, and let out the remaining bad wine in the vat.

After finishing all this, Li Cha turned back and said to Meng Huhu: "Brother Meng, you have seen all the process just now, now you go to find some villagers, I will tell you the precautions, and you will steam here Bar, I went in to teach the students. Blacksmith Lao Jia knows how to make this thing, you can ask him to make a few more sets and steam some more, it will be useful to me and the emperor, and it can be considered as a benefit for the villagers of Shiqiao Village .”

After Meng Huo heard what Li Cha said, he went out to find someone.This shows that it is inconvenient. When Meng Huo lived by himself, one groom and one cook were enough. Now that Li Cha and the students live in, it is really inconvenient not to have a few servants around.Meng Huo also planned to recruit some servants and maidservants.

"Okay, students, you have also seen the magic of science. Now that we are disbanding, you can move around freely. It should be convenient and convenient. After a quarter of an hour, the school will gather and start formal classes." Li Cha arranged.

After Li Cha and the villagers brought by Meng Huhu finished explaining the precautions of the distilled liquor in detail, they walked into the school where the students had already prepared and waited for Li Cha to come to class.

"Students, it's still the same sentence that the teacher said before. The things the teacher teaches you are messy and disorderly. You can learn whatever you are interested in, but you must remember that as long as you are interested in such a subject, you must study hard. .You are not playboys lying on the merits of your parents and waiting to die. You will also become a person who is useful to the Tang Dynasty and will be famous in history. Now we are in class." Li Cha first emphasized.

"The first class the teacher will teach you today is mathematics. This is the most basic thing. You must learn this subject well, because no matter which subject you specialize in in the future, this mathematics must be mastered. The methods of arithmetic such as folding rope logging, Han Xin’s ordering soldiers, chickens and rabbits in the same cage, and Jiugongge are all child’s play for the teacher. Some basic things taught by the teacher are much more advanced than those. Below we Beginning to unravel the magic of mathematics."

Li Cha started teaching Arabic numerals, and also opened the first lesson of Datang's technological progress.

(End of this chapter)