The Ming Dynasty took an unconventional approach

It was the first time for Hongyan and Xiaohong to go abroad. Under the night sky, a fox and a man were clinging to the edge of the pot, screaming towards the outside.

Hongyan felt very unhappy and urged Pan Yun: "Hurry up and open the formation, I want some fresh air!"

Pan Yun: "Xiaohong is so light that she will disappear in the wind. Are you going to look for her?"

Hongyan made the next best choice: "Then lower the edge of the pot. This pot is too deep. I want to get down to my waist."

Pan Yun: "Please calm down. Can't you see that everyone is tired? Are you ready to rest?"

Hongyan looked down and saw that the space in the pot was very large. Pan Jun also opened the space formation of the Three Treasures Tripod, making the space inside even larger.

Tao Yanbai, Miaozhenmiaohe occupied a corner, took out pillows and quilts, and spread them out, yawning and getting ready to go to sleep.

Xue Shao, who was standing next to him, had a small desk with a lamp on it. The wick was a yellow talisman that was burning fiercely.

He laid out the four treasures of the study and was slowly grinding a piece of ink.

Seeing Hongyan looking at him, he raised his head and smiled slightly, glanced at the ink pool, and felt that it was almost done, so he spread out the white paper, picked up the pen, and nodded slightly to Pan Yun: "Go on."

Then Pan Yun started reading and he took notes.

Hongyan opened her mouth wide and murmured, "You are sick~~"

Miaozhen closed her eyes and listened, trying to fall asleep. She had a rough idea in her mind that the junior master brought them to Japan probably to refine silver.

Sure enough, when we arrived at Omori Township and looked into the mountains, we saw thick smoke. Everyone was wearing masks, but it still couldn't cover up the unpleasant smell in the air.

Pan Yun said: "First, we need to find a way to reduce pollution; second, we need to increase the silver refining rate. We can't waste it like this."

Miao Zhen: "I wonder how the silver refining technique in Japan is?"

Wang Cong said, "I have inquired before. Their silver refining skills are worse than ours. They can only extract less than 40% of the silver in the mine. We can at least extract 50% to 60%."

Pan Yun handed them the two books Xue Shao had written down and said, "Take a look. The book says that you can use a fire of about 800 degrees to pre-roast and desulfurize before blowing the ash to increase the reactivity of the silver ore."

Miaohe: "Eight hundred degrees of fire?"

Pan Yun said: "It is fire refining, but the details still need us to experiment and master."

This is so wonderful and so familiar to her. She has been burning the furnace for her uncles and masters since she was a child. The temperature for refining medicine is different from the temperature for refining tools.

There are gentle fire, strong fire, refining fire, hidden fire, red fire, white fire, etc.

Due to the complexity of records in books, there are different descriptions of the same kind of fire.

In order to do a good job of making fire, Miaohe even looked up ancient books.

She also knew that the fire of their Taoist talismans could have a temperature ranging from scorching hot to instantly reduced to ashes, depending on their skills and techniques, like lightning.

Miao He rolled up his sleeves and said, "If we want to pre-roast and desulfurize, we have to start a new furnace. Is there any furnace recommended in the book?"

Pan Yun said: "It really exists, a horseshoe furnace."

Xue Shao, who was standing by, had already turned the booklet to the page that recorded the horseshoe furnace.

Several people came over to take a look.

In the following time, they studied the two books, while Pan Jun was still looking for relevant records in the spiritual realm. He copied them himself first, and when he got tired, he asked Xue Shao to copy them.

Xue Shao did not ask where she got the information from and why did she recite it as if she were reading a book? She had to read it once before she could remember it and understand it thoroughly.
Anyway, their knowledge continued to grow, and the designs they produced became more and more numerous and more and more complex.

Miaozhen thought that since the ore was pre-roasted and desulfurized, the previous ash blowing method could no longer be used and had to be improved. So Pan Yun searched for various ash blowing methods for her. As soon as she found them, Miaozhen had already drawn a diagram, thinking of dividing the desulfurized ore into two types: the best, fine ash blowing to become silver, and the inferior ore went into another smelting furnace to be mixed with lead for re-refining.

In order to distinguish the grades more clearly, Miaozhen also thinks that it should be roasted and screened once more.

"Based on the amount of silver that is mined now, the amount of ore that is mixed with lead for refining is reduced by half, and the pollution is also reduced by half."

Pan Yun also found the issue of pollution treatment in the spiritual realm, and his eyes lit up: "Add another furnace before and after the lead refining furnace. In the front one, add saltpeter and borax..."

Xue Shao: "Isn't it too complicated? It would take too much manpower. To refine silver, you have to crush the stone."

Pan Yun touched his chin and said, "This is indeed a problem."

Wang Cong on the side seemed to be hesitant to speak.

Pan Yun glanced at him and said, "If you have something to say, just say it."

Wang Cong: "Uncle Master, do you still remember the washing machine you worked so hard to make?"

Pan Yun: "...What do you mean?"

"Can't the initial version be used as a stone crusher? And the intermediate version can be used as a stone screener."

Pan Yun was silent for a long time: "Then what's the point of me taking so much effort to remove it?"

Wang Cong whispered, "At least it's used. Washing machines... really no one buys them."

Even a genius like him couldn't sell them all. The three that he asked craftsmen to make are still piled up in the warehouse of Guangxin Prefecture.

Pan Yun had gotten out of his complicated emotions and thought quickly: "If it is used for crushing and screening stones, then we have to change to other materials."

Wang Cong had already thought it through: "Let's use clay to burn it like a furnace."

Pan Yun: "But this 'furnace' must be oval and able to rotate..."

Pan Yun instantly sketched out the drawings of the crusher and stone screen in his mind.

The group immediately got busy, and without the help of the workers, they could mix the mud themselves.

A new silver refinery was built at another location nearby.

Xue Shao helped everyone, and after a few days, he finally figured out the various principles involved. He also finally knew that the power of the crusher and stone screen actually came from formations and talismans.

Xue Shao stared blankly at the talisman drawn by Pan Yun.

Pan Yun occasionally looked up at him and asked, "What are you daydreaming about?"

Xue Shao slowly folded up the talismans and said in a deep voice, "I finally understand why the Tianshi Mansion strictly prohibits cultivators from spreading the mystical arts among the people. Even if they occasionally leak the mystical arts, they will be severely punished."

Pan Yun smiled and said, "Because there are not many people in the world who have the talent, time, and ability to practice Taoism. If the people were to follow suit, agriculture, commerce, and industry would wither, and the fate of the country would be shaken."

"No," Xue Shao said, "If such a sharp weapon is destined not to be used by ordinary people, then it should not be used in the first place. Otherwise, all the wealth in the world will be in the hands of a few people, and before people in the world rush to learn Taoism, the world will be in chaos."

Pan Jun was stunned and seemed to be thinking about something.

Pan Xiaohei even raised his cat head and meowed, "Is this a sudden enlightenment? Do you think you are the only one in the world who has realized the use of talismans, and others have not realized it for thousands of years?"

Pan Yun put down the talisman brush and looked at the talisman written on it: "So everyone uses it secretly and never leaks it to others..."

Xue Shao glanced at Pan Xiaohei who was speaking, and said to Pan Yun: "Can you use other power?" (End of this chapter)