?The next day, Yu Wenwen slept until noon before getting up. Yesterday's experience was too exciting and consumed a lot of his energy, so he slept in a rare sleep. Of course, in order to avoid the extracurricular problems, everything he should do was safe.

First of all, he had to "report peace" to the palace and the Prime Minister's Mansion. The noise he made in the Qiu Guan Mansion prison was quite a bit of. Prime Minister Yuchi Jiong could not know it, and the little emperor in the palace would also know it sooner or later, so he had to take the initiative to avoid unnecessary misunderstandings.

Then he arranged someone to investigate the mastermind behind the scenes. He was almost privately asked to be tortured in the cell, so the prison officers needed to "greetings" and all the people involved had to be caught in one go.

Then he placed two alchemy masters and apprentices. Taoist Master Liu Yang accidentally caused a big explosion while refining the alchemy. In order to avoid someone who is interested in finding out the secret, he was supposed to take care of it. Originally, Yuwen Wen's father-in-law Chi Shun was responsible for this, but Yuwen Wen volunteered to take on this job after having an "adventure".

Liu Yang tried to smelting the zinc smelting technique and then accidentally developed spectrometry. Although this spectrometry is very primitive, it may be barely qualitative (to determine whether there is a certain metal in the sample), and it is unlikely to quantify (how much is the content), but it is also valuable.

Yu Wenwen would not let go of such a strange character. He not only had to strictly guard him, but also had to "pack" the other party back to Bazhou.

While having lunch, Zhang Yu entered. He saw Yuwen Wen still having lunch. He hesitated for a moment before saying that Master Liu was looking for a meeting outside, and he had been waiting outside the yard since the morning, asking from time to time, "Don't Mr. Yuwen have time?"

"Let him come in."

"yes."

When Zhang Yu exited the room, Yuwen Wen couldn't help but shake his head when he remembered what happened yesterday. At that time, Master Liu held his legs and cried, "Mr. Lang, I want to learn chemistry." At that moment, he remembered another classic line: "Coach, I want to play basketball."

Since you want to learn sincerely, I will teach you reluctantly. God knows what grades you have learned.

The footsteps sounded from far to near, and then the door was pushed open. Liu Yang, dressed in clean clothes, ran in. Seeing Yuwen Wen having a meal after eating, he slowed down and sat down: "Langjun, can you start now?"

‘The master sat down without letting him sit down. He was so unrestrained. Yuwen Wen was a little helpless. This Taoist Master Liu really didn’t understand the world and human relationships, similar to a nerd who was not good at communicating with others when he read.

Seeing the other party's expression of anticipation, Yuwen Wen was not in a hurry. He asked questions while eating. He first asked Liu Yang and his apprentice how they were eating, living and dressed in the residence last night. He also asked if he had lunch today. After confirming that everything was normal, he turned to the topic.

This alchemist who has been in the industry for more than 30 years has to learn chemistry, and the first thing he has to do is to learn wrong knowledge. It is impossible to write something on paper full of words, so he wants to 'empty' the other party's head and throw away the inexplicable alchemy knowledge behind his head.

If you want to have a good effect, you must be a wake-up call, so Yuwen Wen decided to "pull the snake out of the hole" and asked Liu Yang to introduce the principle of alchemy. Then he "shot seven inches" and hit the key points directly, refuting the most basic alchemy theory one by one.

Speaking of alchemy, Liu Yang is still full of energy. Although he has learned that there is the wonderful method of "chemistry", he has been practicing alchemy for decades, so the "feeling" is not something that is gone.

Listening to Liu Yang talking, Yuwen Wen didn't understand the various nouns at all. While nodding and pretending to be listening, he was thinking about the core idea in his alchemy experience.

The alchemists in the Central Plains pursued the refining of elixirs with fairy energy, and then they became immortals after taking them. Because of immortality, they were obsessed with gold that had not decayed for thousands of years, and their longing for immortals led alchemy astray.

Alchemists believe that the immortals and heaven and earth are together with the sun and moon; they sit thousands of miles away, and they use ghosts and gods to control their families; they rise to the empty space, fly without wings, ride on clouds and ride on dragons, and go up and down, and travel around the eight poles in the celestial world.

In other words, the biggest characteristic of immortals is to fly into the void and travel, so people always associate immortality with ascension.

Therefore, those substances that are easy to fly when they see fire and remove light weight (easy to sublimate) are considered to be supernatural things in the eyes of alchemists. After eating them, they may be infected with spiritual energy, change their bones and lighten their bodies, and then ride on clouds and control dragons and travel around the universe.

According to this theory, besides gold, alchemists like cinnabar and mercury the most. In their minds, this is a magic pill, because "cinnabar burns into mercury, and accumulates into cinnabar."

Cinnamon and mercury convert each other, "the longer it is rosy, the longer it accumulates, the more wonderful the change, it can fly, powder, essence, snow, fire, water, it can be transformed, it can be dissipated, and it can be buried, it can be damaged." It is really amazing.

Then there are various statements, such as after eating cinnabar, "the fog dissipates like wind and clouds, and the fumigates to the limbs", and some people say "the mud balls are filled, the dantian is full, the three gods are happy, and riding on the clouds is like a dream."

When he thought of the pill with severe mercury content exceeding the standard and he took it into his stomach, Yuwen Wen couldn't help but feel chills all over. He looked at Liu Yang and saw that it was just a 'intermission break', so he began to 'counterattack'.

"I wonder if the respected teacher took the pill he refined?"

"This is natural. The master has to take pills for decades of practicing elixirs."

"Uh, I have a question, of course there is no intention of disrespecting the teacher." Yuwen Wen was considering the words. He used the words to talk to Master Liu to claim that he was ‘me’. Yuwen Wen felt that this person seemed a bit ‘stupid’, but he didn’t know what his feelings for his master were. In order to avoid stimulating the other party, he made a statement before asking questions.

Seeing Liu Yang nodding, Yuwen Wen coughed and asked, "Is it easy to be excited, or moody or irritable before the teacher left?"

"Uh, there are indeed some."

"Did the Master's limbs tremble at that time, unable to hold chopsticks, dressing, walking, and even speaking with a strange pronunciation?"

"Yes, my teacher was unable to dress on his own at that time, and I was taking care of my daily life."

"So, does blue-black short-term appear in the mouth of the teacher and in the subgingival mucosa?"

"How did the husband know?" Liu Yang was quite surprised when he heard this. The symptoms Yuwen Wen mentioned were the same as those of his master before his death. "When I was driving, I gave the teacher a decoction, but my teeth were closed and I couldn't open it. At that time, I saw a short blue-black line appearing in the mucosa of his undergums."

Yuwen Wen played the trick of trying to get, asking Liu Yang if he wanted to know how he guessed this symptom. Liu Yang naturally asked why. Yuwen Wen then gave the answer: This is a typical symptom of chronic mercury poisoning.

According to chemical terms, cinnabar is mercury sulfide. It undergoes a reduction reaction when heat occurs, sulfur and mercury separate, and the sulfurization into gas disappears, leaving silver-white liquid mercury, so the elixir refined from cinnabar has a high mercury content.

Master Lao Liu took this pill for a long time, so he gradually became poisoned by mercury and became seriously ill in the later stage, which caused all the above symptoms.

"This...this is impossible!" Liu Yang expressed his disbelief.

"It is mercury poisoning. Mercury enters the human body and cannot be ruled out. Over time, it accumulates more and more. It will cause people's nerve disorders. The place where they gather is near the gums, so there will be short blue and black lines!" Yuwen Wen said firmly, his tone unquestionable.

Liu Yang was stunned when he heard this, wanting to say something but unable to say it. Since he came into contact with alchemy, his master taught me how strong the cinnabar is and how wonderful its effects are.

Now Yuwen Wen said that this is poison, and Liu Yang's mind could hardly turn around. Just like a person who had eaten rice with corn for decades, suddenly someone said that this is poison that would kill people. How could anyone believe this statement?

But he couldn't believe it. The other party said the symptoms of his master before his death, such as trembling limbs, moody, and wrong pronunciation of speech. Many ordinary old men also showed this. However, the blue and black short-term lines appearing under the mucosa of the gums have never heard of any elderly person in the mouth.

"Isn't this true that you will get mercury poisoning sooner or later when taking the elixirs refined by cinnabar?" Liu Yang asked with difficulty. He thought that he also took the pills when he was refining the elixirs, so sooner or later he followed in the footsteps of his master and eventually died of poisoning.

"That's true. As the saying goes, it's not too late to repair the sheep. Mercury poisoning does not occur in one day. Taoist priests should not take that pill from today."

Liu Yang nodded murmly. He had not recovered from the shock. However, Yuwen Wen's unquestionable tone made him feel trust inexplicably without any doubt in his heart.

"Master Liu, please talk about the technical system of alchemy next."

"Technical System? What is a technical system?"

"Uh, it's the kind of yin and yang that harmonizes."

"Oh, then I'll be ugly..."

Yuwen Wen continued to listen to Liu Yang explaining the theory of alchemy. Alchemists took a fancy to gold and cinnabar, and called the artificially cultivated "gold preparations" gold liquid, and called the cinnabar that had been refined several times as a divine pill, and the two were collectively called the golden elixir.

How to combine the golden liquid, divine pills and various strange medicines, alchemists continued to study. The result of the study was "Yin and Yang Change", and applied the theory of Yin and Yang to specific alchemy. Specifically, it was to divide the medicines used for alchemy into yang medicines and yin medicines.

Wei Boyang, a famous alchemist in the Eastern Han Dynasty, wrote a purely theoretical work on alchemy, "Zhou Yi Shen Tongqi", which used the Yin-Yang theory of "Zhou Yi" to explain alchemy.

There are a lot of "sun and moon" and "men and women" in the book, which use metaphors to clarify that the basis of alchemy is the intercourse between yin and yang. When the sympathy is in line with the routine, the cultivation of golden elixir will be successful.

‘The relationship between Yin and Yang is in harmony, and this is enough to make up for it…’ Yuwen Wen sighed in his heart. In order to pursue immortality, ancient alchemists had all kinds of strange ideas and ideas. However, the starting point was wrong, so the result was naturally wrong.

"My husband seems to be dissatisfied with the 'harmony of yin and yang'?" Liu Yang asked. When it comes to alchemy, he felt very sensitive. Seeing Yu Wen Wen's face showing contempt, he stopped explaining and preparing to 'fight for reason'.
Chapter completed!