Wentang

Chapter 682 A necessary textbook for historical travelers
Cong Ma?

Mentioning the name Yue Shan gave him a headache. The dean of Gewu was really tormenting, chasing him every day to ask him about physical chemistry.

He does know a lot of bits and pieces, but with the current level of technology, those things are useless even if they are said, and they cannot be tested.

A large part of the reason why he doesn't like to come to the academy is that he doesn't want to be bothered by Ma Cong. I don't know what kind of mess this guy has made, and even Wang Ji can't bear to sue him.

Originally, I wanted to drop by to have a look, but thinking about it, I would hold him back and talk endlessly, so I simply waited another day.

He asked the people in the glass workshop to make a lot of experimental vessels, and it is estimated that they have almost been made, and they will be brought back later.Having these things should make Ma Cong rest for a while.

Thinking of this, he turned around and left the academy to go home.

What he didn't know was that as soon as he left Ma Cong, he rushed to Wang Ji to block him, and the two almost had a fight.

After returning home, Li Lizhi dragged him to pay the public rations for half the night. When he got up the next day, Yue Shan covered his waist with a look of panic, and even canceled the morning exercise that he had persisted for more than ten years.

Dude, let's find an excuse to go to the city for a few more days, that little bitch is crazy.

The food in the Princess Mansion has recently become richer. In the early morning, the chicken stewed with mushrooms.Gritting his teeth and drinking three bowls, Yue Shan finally decided to leave today.

But before leaving, I still have to go to the academy to see what happened to Ma Cong.

Bringing the three baby carriages that came back from Jinglila overnight, Yue Shan came to Gewuyuan.Before entering the door, there was a strange smell, a little sour and like something was rotten.

This is... a very familiar smell.

He opened the door and went in, and he saw that the ground was full of oranges, many of which were broken.

This is not because of the convenience of logistics in the previous life. Eating fruit in this era is very difficult.What's more, we still eat oranges from the south in winter...Ma Cong's annual salary can't buy so many oranges.

Seeing Ma Cong and others busy around the oranges, Yue Shan asked, "What are you doing? What are you doing with so many oranges?"

Seeing it was him, Ma Cong immediately became excited, and said: "Dean, you are finally willing to come to Gewuyuan. I have been looking for you for several days, but I have not found you."

Yue Shan thought to himself, I know you are looking for me, but I am hiding from you, of course I can't let you find me.But he said: "Tell me first what to do with so many oranges?"

Ma Cong wiped his hands on the front of his clothes, not caring about the already blackened clothes, and said: "Didn't you say that only by making three acids and two bases can we study the way of material change? I will try to make acid. At first I wanted to purify the vinegar, but I found it was not possible.”

Purified vinegar?Yue Shan was quite speechless, what is going through your mind.But... "Then what are you doing with so many oranges?"

Ma Cong said: "Don't worry, listen to me. I found out that purifying vinegar is not good, so I thought oranges are sour. Is it okay to purify oranges? If oranges are not good, then find something else... I don't believe it can't be sour."

There was a black line on Yue Shan's forehead, it was too nonsensical.But I also feel admiration. This kind of exploration and trial spirit is what scientific researchers need most.

Although he didn't want to dampen their enthusiasm, he still shook his head and said, "Although your idea is good, this method can't create the sourness I mentioned."

Ma Cong's face collapsed in an instant, and he said helplessly: "I also know that this method won't work, but I really can't think of what the sourness you mentioned is. I can only try it with a just in case mentality, but it still doesn't work. "

After finishing speaking, he said to the experiment assistants: "Okay, don't mess with it. Send all these sentences to the cafeteria, and say that our Gewuyuan invites everyone to eat oranges."

Those assistants and students immediately showed a relieved expression, saying that they would be sent there immediately, obviously they had had enough of this kind of work long ago.But there are also some people who are frustrated. Ma Cong's words herald the failure of their experiment.

At this time, a [-] or [-]-year-old student came over. This person Yue Shan knew Zhou Shifang who had officially discovered the saturated salt washing method.He was specially recruited by Yueshan to join Weishui Academy, and then chose to come to Gewu Academy, and worshiped Ma Cong as his teacher.

Zhou Shifang saluted Yue Shan first, and then said to Ma Cong: "But Master, you spent all your savings to buy these oranges. What if you give them to someone else?"

"It's okay, my salary is high, and I will have money in a few days." Ma Cong waved his hand.

"Wait, did you buy these oranges with your own money? Don't you have experiment funds?" Yue Shan asked.

"It's okay, it's okay." Ma Cong waved his hand quickly.

Zhou Shifang defended his master and said: "Master said that the purification of vinegar and oranges was his own idea and had nothing to do with the academy, and he couldn't use the experimental funds, so he bought the vinegar and oranges with his own money. Because of this, my wife was so angry that she ignored him."

"You..." Yue Shan wanted to scold him a few words, but he was so ashamed that he couldn't say anything, and finally sighed: "Shifang, how much money did you spend? I will hand over the money to your mistress."

Zhou Shifang said happily: "Here, Xie Yuehou."

"Hey, hey...how, how good is this." Ma Cong was even more ashamed, but in the end he did not refuse the reimbursement.

It's not that he is greedy for the money, but that the family is really going to be out of control.

In the past, he was alone with no attachments and no worries, and devoted himself to Taoism.Last year, Fan Xin was moved and married a daughter-in-law, so there was also concern.

It's not that his wife doesn't support his career, but that the time just happens to be during Chinese New Year.He used all his savings to buy vinegar and oranges. This year, his daughter-in-law pawned all the dowry money to avoid embarrassment when he left his mother's house. Now he urgently needs money to redeem the things.

And strictly speaking, although his behavior looks a bit stupid, it is really for experimentation, and he did not embezzle a penny, so it is no problem to use the public account for reimbursement.

"Okay, that's it." Yue Shan didn't bother to listen to him, and said, "I have someone make some experimental tools, and you take them down. Handle them carefully, they are full of colored glaze."

"Ah?" Ma Cong was a little curious about what was in the three carriages. He heard that they were tools for experiments, or made of glass. He showed a surprised expression: "What kind of tools should be made of glass?"

And how much is that much glass worth?

"Don't you want to study the way of material change? Those experiments must use glassware." Yue Shan said.

"How to study without three acids and two bases..." Ma Cong originally wanted to say how to study the way of material change without acids and bases, but he stopped suddenly in the middle of the sentence, and said in disbelief: "How do you think of three acids and two bases?" Made it?"

Yue Shan nodded and said: "I thought of a method of making sulfuric acid. As for the other two acids and two bases, you need to study it yourself. But with this kind of acid, it's just a matter of time to research the others, so don't worry. "

Ma Cong said ecstatically, "Okay, okay, that's great. Let's go, let's make acid now."

"Don't worry, the production of sulfuric acid will take a lot of time. Don't be in a hurry. Besides, you need these experimental equipment to make it. Let's put these equipment away first." Yue Shan said.

"Okay." Ma Cong said reluctantly.

In order to make sulfuric acid as soon as possible, he immediately called his assistants and students to move the three trucks of equipment into the house together.

At first, the students wondered what these equipments were. When they opened the box and saw beakers, measuring cups, glass rods and other things made of glass, they were all stunned.

This is glass. According to legend, a single glass can be sold for dozens of bottles. Now they have more than a dozen boxes in front of them. How much does it cost?And these things are for their experiments.

Too rich and too extravagant.It would take more than ten years to sell any one of them.

Not to mention the students, even the dean Ma Cong showed a fascinated expression.

"Cough cough." Yue Shan woke everyone up with a light cough, and said, "These are all experimental equipment, and each one has a number on it. They will be put in the warehouse later, and anyone who needs to use it must register and sign to get it. After use It must be returned to the warehouse."

"I will send people over to check regularly, I hope you will not let me down."

Hearing this, some small thoughts in everyone's minds were immediately dispelled. These things are hot, and it's hard to say whether they will be of any use if they are taken.

Ma Cong said: "President, don't worry, I will definitely take good care of these equipment, and I will never lose any of them."

Yue Shan said: "Just know what you have in mind."

At this time Zhou Shifang asked: "Yuehou, glassware is not strong, and it is inevitable that it will be damaged during use. What should I do if it is damaged? Do I need to pay for it?"

Others also looked over one after another, yes, everyone has heard that glass is fragile, what should we do if it is damaged.They can't afford it.

Yue Shan said: "Don't worry, there is no need to compensate for the damage, but the glass fragments must be handed over to the warehouse to sign and explain. At that time, I will have the fragments taken away and replaced with new containers for you."

Only then did everyone let go of their worries, and looked excitedly at the glassware in front of them.

Although you can't take it home, you can use it casually in the laboratory, which can be regarded as an alternative enjoyment, and you can also have the capital to brag with others when you go out.

"Let me tell you about the uses of these vessels first." Yue Shan said.

Ma Cong and the others quickly took out their notebooks and listened.

"This is a beaker, which can hold liquid... This is a measuring cup, to measure the volume of the required liquid... You see, there are scales on these glasses, and a scale is one milliliter..."

"Milliliters?" Ma Cong immediately grasped the crux of the problem and asked, "What is the conversion ratio to liters?"

"One thousand milliliters is equal to one liter. The standard of one liter is based on water, and the volume of two catties of water is one liter...The reason why water is used as the standard is that it is the most common and closely related to people's lives..."

"You know the density. One catty of alcohol and one catty of water and one catty of oil have different densities and volumes..."

"This is an alcohol lamp, which can heat objects under laboratory conditions. This is a balance scale, with weights on one side and the object to be measured... This is the weight, one money, two money, five money, one tael, two taels ..."

"This is a filter tube. Heating, evaporating, filtering and condensing can be carried out together... save a lot of time and steps, and can do some more precise experiments..."

Yue Shan imitated all the utensils that can be used in the chemical laboratories of later generations, hoping to create convenient conditions for chemical experiments.

After he finished introducing the usage of these things one by one, everyone showed expressions of sudden realization. It turns out that these utensils have so many functions, and they have learned a lot.Compared with their previous experiments, it was too crude.

Afterwards, it was time to count the utensils and put them into the warehouse for registration. Naturally, Yue Shan and Ma Cong didn't need to watch over these matters. The two came to the side to discuss the matter of making sulfuric acid.

"The method of making sulfuric acid is very simple. Heating and calcining pyrite until it is burned to ash, this process takes more than ten days. Then dissolve the ash in water and stir thoroughly, and then let it stand for precipitation." Yue Shan said:
"Evaporate clear water to get some crystals, these crystals are ferric sulfate...Put ferric sulfate in a sealed bottle to calcine and condense to get high-concentration sulfuric acid..."

"With sulfuric acid, you can try to do experiments on material changes, and study the other two kinds of acids and bases by the way."

Ma Cong was surprised: "Sulfuric acid can be produced so easily? Why didn't you mention it before?"

Yue Shan said: "I forgot before, but I just remembered, is there a problem?"

Ma Cong said quickly: "No, no, no problem, I'll send someone to find pyrite."

Yue Shan stopped him, and said seriously: "Don't worry, I have some precautions to tell you. This is not a joke, sulfuric acid is very dangerous, and it may kill people."

Ma Cong also knew the seriousness of the matter, and said solemnly: "Say it."

Yue Shan said: "Sulfuric acid is highly corrosive. If it touches the skin, it can completely corrode the flesh. There is no way to treat it. Do not touch it with your hands."

"It is also very dangerous during distillation. If you inhale the sulfuric acid in the mist state, you can choose to commit suicide directly to avoid suffering."

"This kind of thing can only be stored in a glass bottle, and other things will be corroded. And it is also very volatile, so it must be plugged with a glass bottle stopper..."

Yue Shan explained all the dangers of sulfuric acid and the precautions when extracting it. Ma Cong listened to it with a serious face, afraid that he would forget it, and even took out his notebook and wrote it down.

After confirming that there is no problem, Yue Shan let him go, and Ma Cong went to find pyrite to make sulfuric acid as quickly as possible.

It was only thought of that pyrite can make sulfuric acid mountain some time ago. This kind of technology is not learned from textbooks, but from a novel.

The name of the novel is The Mysterious Island.

He had read this book several times in his previous life, and he was very envious of the adventure described in the book and the construction process from scratch.

It’s just that he ignored this book when he was compiling the Gewu textbook at the beginning. After all, it is an adventure novel. Who would have thought that there are so many treasures hidden in it.

It was also some time ago that the imperial court decided to carry out the great development of the South China Sea. He recalled the various knowledge points he had read in his previous life and collected as much useful information as possible, and then thought of this book.

After carefully reviewing the contents of the book, I realized that this is simply a textbook for time travelers to climb the technology tree.

It can be said that without any knowledge of physical chemistry, memorizing this book can build a simple modern technology system from scratch.

Then he began to try to recall the knowledge in it, and it really reminded him of many useful things.

The production of sulfuric acid is one of them. Who would have thought that it can be obtained by simply incinerating and distilling pyrite without any complicated means.

Not only sulfuric acid, but also many other things, such as nitroglycerin... The book gives a detailed tutorial, and it is a very simple production method that can be produced with only one pair of hands.

However, in the short term, Yueshan has no idea of ​​bringing this kind of thing out. For this era, gunpowder and super-era cannons are already invincible artifacts, and there is no need to engage in more expensive nitroglycerin.

As for some other things, there is no need to take them out for the time being. If the steps are too big, it will be nonsense. Take them out bit by bit, so that people of this era can slowly digest and absorb them to establish a system that conforms to the times.

When the foundation is solid, come up with new things, step by step.

(End of this chapter)