Li Feng was also quite sad. He avoided studying at Master Xue's house, but when he arrived at Master Yu's house, he did not hide and was escorted to write for an afternoon.

He didn't have to worry about Master Yu. He could live from the Chen Dynasty of the Southern Dynasty to the Sui Dynasty, and then live smoothly to the Tang Dynasty. Moreover, he lived a very comfortable life. Not to mention anything else, his ability to save lives was absolutely first-class, and he was almost a tumbler.

It does not mean that Yu Shinan lives by doing things smoothly and pleasing the power. On the contrary, people follow the path of traditional literati, do not admire the powerful and noble, are noble, and even their family is a little poor.

It was this kind of reputation that became his amulet. In contrast, his brother Yu Shiji took another path to flatter the king. Although he was a powerful minister, he was finally killed during the Jiangdu mutiny. Yu Shinan was also in Jiangdu at that time, but nothing happened.

But Li Feng could not be the same as his master, so he gave the copy of papermaking method to Master Yu in a thousand words.

Although Yu Shinan's personality is also noble, it is still fundamentally different from Xue Daoheng who is ignorant of the flexibility. The method of making paper was not mentioned to the emperor, but instead kept it silent and made a fortune. Of course, half of Li Feng's fortune would definitely be indispensable in this.

The Yu family is a family in Jiangnan, with a lot of connections. The south is rich in bamboo and used to make paper. It is most appropriate. Yu Shinan is noble, but he is not willing to be poor. He is of course happy to have such a way to make money by his ability.

The profit of papermaking is probably second only to salt and iron. After all, in this era, papermaking technology is still very backward. I haven’t seen it. Even the memorials of officials use bamboo and wood slips?

"Master Yu, please sit down. Yes, let's take a pose. I'll take a photo for you - what is pose? It's the pose you are most used to, the most handsome one!" Li Feng was tired of writing, and suddenly had a whim and decided to take a photo for Master Yu.

From now on, there are also historical celebrities around you, and Li Feng is going to leave a picture. It should be fun to read it when you are fine.

If you want to say that Yu Shinan is worthy of being a great man, he has a posture of writing and writing, and he is definitely a middle-aged and handsome man.

Li Feng also came to Master Yu and took a photo together. After the photoshoot, Yu Shinan asked him: "Danxin, what is your intention to stretch out two fingers?"

It was not until the next afternoon that Li Feng returned home. After entering the door, he was thrown into his arms by Nu Nu: "Brother, Nu Nu misses you!"

Seeing the little girl's eyes flashing with bright golden beans, Li Feng quickly pasted her little face: "It's the eldest brother's, it's the eldest brother's, it's the eldest brother's, you see, what did the eldest brother buy for you?"

"Wow, candied fruit, I haven't eaten candied fruit for a long time!" Nunu cheered, took the oil paper bag from his elder brother's hand, took out a candied date from it, and stuffed it into his mouth.

Then he realized something and quickly took the candied dates out of his mouth: "Hehe, grandma, you eat first. And brother, you eat first."

Seeing that the candied dates were still stained with crystal saliva, Li Feng couldn't help but smile and reached out to rub the little girl's head: "Nu Nu, remember to brush her teeth before going to bed."

"I know, brother." The little girl put the candied dates back in her mouth and slowly chewed them with her small teeth. Her face looked full of happiness.

Li Feng and his grandmother looked at each other with a smile in their eyes. Then Li Feng also took out his cell phone and left a smiling face for Xiao Nannan to eat snacks. Of course, he did not forget to take a photo with his grandmother and the other three.

The child is still more able to accept it quickly, and Nunu also imitates his elder brother and sets up scissors hands.

When he was running the next morning, he ran directly to Qingyun Temple, but Xie Yingdeng told him that Master Sun had also gone to Daxing City these days, saying that it was a matter of running and enrollment. He also said that Master Sun seemed to be more concerned about forming a medical team than Li Feng.

Li Feng had no doubt about this. With Master Sun's heart to save the world, he wished that everyone in the world would be free from illness or disaster.

Seeing that Xie Yingdeng's uncle, Master Xie Hong was able to move slowly in the yard, Li Feng checked his wounds and recovered well, so he removed the thread.

As long as you don’t engage in intense activities in the past few days, you will definitely be fine in the future.

By the way, I also gave a photo with Xie Hong and Xie Yingdeng.

Xie Hong was also very happy and took a gourd like a treasure: "My nephew Danxin has a pair of wonderful hands, I can't thank you. Here are a few refined Nine-Turning Golden Elixirs. The elders in the family can take it to prolong their life."

Nine-turn Golden Pill? Li Feng almost thought that he had traveled to a world of cultivation.

This thing is absolutely impossible to eat. What are silver, red copper, black lead, sulfur, etc., heavy metals are seriously exceeding the standard, so you don’t need to think about prolonging your life. Eating this thing is equivalent to chronic suicide by taking poison.

From this point of view, the history of drug use is still very long.

Li Feng didn't want to see Xie Hong, who was quite fairy-like, take drugs again. However, if you persuade him, it would probably be of little use. The inherent concepts cannot be changed in just a few words.

Just like Li Er later, he was very talented and had a great strategy and could be called the emperor of the ages. As a result, he took pills and finally passed away with great age.

Li Feng was still very curious about the ancient Taoist priests' alchemy, so he told Xie Hong that he wanted to visit. Of course, Taoist Xie happily led the way and went to the alchemy room.

Then he introduced how precious his alchemy furnace was. Li Feng felt that he was almost praised as the alchemy furnace of Taishang Laojun.

However, he was also very eye-opening. When Xie Hong introduced the raw materials for alchemy, Li Feng saw a lot of minerals, such as hardware, eight stones, three yellows, etc., many of which were rare. When Li Feng was traveling around the east and west markets, he didn't even come across it, and he didn't expect it to be hidden here.

Do you dare to eat the things refined from these raw materials? They are all compounds such as arsenic, mercury, lead, etc., and the toxins are seriously exceeding the standard. It would be strange if you don’t become an immortal after eating them?

Xie Hong also intended to show off, so he told Li Feng what the Nine-Turn Golden Pill is: "According to the records of Master Ge in the immortal book Baopuzi, the longer the golden elixir is a medicine, the longer it is burned, the more wonderful the changes it changes, and it cannot be eliminated by a hundred refinings. Bi Tian is immortal. If a person takes it, it can make people immortal without ageing."

Seeing his longing look on his face, Li Feng was also glad that he had not persuaded him just now: I am all possessed by the devil, I guess even nine cows can't pull them back, and my little arms and legs are definitely even worse.

Xie Hong continued to talk: "My Nine-Turn Golden Pill uses a secret method to refine cinnabar into mercury, and restore mercury to cinnabar. This is a one-turn. This is a nine-turn. Unfortunately, I have limited talent and can only barely refine 3-turns, which is a deep regret."

Li Feng also listened with relish: Of course he knew that cinnabar was mercury sulfide, and of course he could extract mercury. The easiest way was to burn it directly. If you are not afraid of mercury poisoning, you will be able to do it;

As for refining mercury back to cinnabar, then adding sulfur can turn it back to mercury sulfide. Haha, this is alchemy. Why do I feel like doing chemical experiments in the laboratory?

Chemistry? By the way, these alchemy Taoists were the earliest chemists in ancient times. Together with Western alchemists, they set a precedent for chemistry.

Thinking of this, Li Feng seemed to have caught a trace of inspiration: It is definitely impossible to persuade Taoist priests who are obsessed with alchemy. Do you advise others to abandon the hope of immortality? It would be strange if you don’t play with you?

So, why not change the blockage into loosening, and directly take out modern chemistry knowledge and guide them to study. Perhaps, it can really be refined into the "golden elixir" that changes the world.

These golden elixirs are definitely not something to eat, but are the same chemical products that improve people's lives and promote the progress of this era.

At present, there is no one who is more suitable for learning chemistry than these alchemy Taoists.

As for whether they are willing to study. With these guys' enthusiasm for alchemy, Li Feng believes that as long as they help them open the brand new door of chemistry, these alchemy Taoists will definitely move forward bravely. Who can resist the temptation of immortality?

With this idea, Li Feng's mind became more and more active. He spent some time to sort out basic chemistry and first compile the junior high school students. It was easy to start from simple to difficult. After thinking about the title of the book, it was called "Golden Alchemy Book".

Why do you feel like the Sunflower Book? Or, change your name?

Before leaving, Li Feng took away the small gourd that was pretending to be a golden elixir. Although it was not the Nine-turn Golden Pill, it was just a three-turn, outsiders didn't know.

This Taoist Master Xie is quite famous in the alchemy world of this era. It is said that the golden elixir he refined is hard to find.

If anyone dislikes Li Feng in the future and causes trouble for him, Li Feng doesn't mind giving this little gourd to the other party. If you can't kill you, you will also be chronically poisoned.
Chapter completed!