"No need. This person is no longer threatening me!" Zhang Qian smiled and shook his head, looking at the two junior brothers with gratitude. "Besides, you may not be able to kill him. He had discovered you just arrived."

"We are in the front yard and have reserved manpower. We are all around..." Guo Nu frowned, not understanding why Zhang Qian was merciful to a person who was difficult to distinguish between us and us and could leak secrets at any time. If his father had been standing in the same position as his elder brother, the surname Luo would have been stuffed into a sack and sank to the bottom of the Wei River as early as the night of the shelling altar, and this person would not have been left until now.

"Second Brother, what the eldest brother said is, there is no need!" Ren Cong had been dating Zhang Qian for a long time, and was much more sensitive to the changes in him than Guo Nu. He gently pulled the latter's tripping silk ribbon and interrupted in a low voice.

"No need?" Guo Nu turned his head, looked at Ren Cong with confusion, and repeated in a low voice. Then, a burning light also emanated from his eyes.

The eldest brother is soft-hearted and even has some good people. Both he and Ren Cong knew this clearly. However, if it were the case tonight, the eldest brother would definitely say, "Don't kill him" instead of "no need". Although these two sentences can achieve the same effect, the speaker's mentality is completely different.

The former is only a kind nature, while the latter reveals the ability to control dangers within a limited range.

"Let the brothers go back and rest. Thank you all for your hard work tonight. You two, please settle down, change your clothes, and go to the study to find me. I have something for you!" Just as they were surprised and happy, Zhang Qian's words came into his ears again, and they still sounded full of confidence and calmness.

"Yes, senior brother." Guo Nu and Ren Cong agreed and hurriedly took the servants down to settle down. After a quarter of an hour, they each changed into their daily clothes and came to Zhang Qian's study. Their senior brother had been waiting in the study, facing a concave sketch full of numbers, and the recollections on their faces were clearly visible.

"Senior Brother!" Ren Cong stood beside Zhang Qian and looked at the concave sketch for a while, but he still couldn't understand what was written on it, and called out nervously.

Guo Nu was convinced that the eldest brother was preparing to teach the new master's unique skills tonight, and his face turned red with excitement and his eyes were as bright as candles. "Senior Brother, I just checked it, and I guarantee there is no fourth person around..."

Before he finished speaking, the door was gently pushed open outside. Zijuan walked in carefully with tea and snacks in a lacquer plate. "Young man, have some midnight snacks. They are all made by my maid."

Now, Guo Nu immediately caught the blind man. He wanted to drive Zijuan away, but he was worried that he would be blown by the pillow in the future. If he didn't drive, the secret of the master's sect would be at risk of leaking, and the cowhide he had just blown was really ugly.

Fortunately, Zijuan just came to deliver tea and snacks. After putting it down, she gave Zhang Qian a gift and slowly retreated. Zhang Qian didn't seem to be concerned about the leak. She took a few sips of tea and then picked up the white paper with the sketch and handed it to Ren Cong, "This is for you."

"Thank you, Senior Brother!" Ren Cong's nervous voice changed, he took the sketch with both hands and bowed to thank him.

"This one is exactly the same for you." Zhang Qian smiled, picked up the second white paper with a concave sketch from the desk, and handed it to Guo Nu casually, "You two will hold it away first, and then find time to memorize it. This is one of the three unique skills of the master, the advanced content of physics, and the composition of the world's matter. The master calls it the periodic table of elements."

"Thank you, Senior Brother!" In an instant, Guo Nu's face was filled with ecstasy, and his body trembled slightly because of excitement.

The eldest brother once said that Qin Mo has three unique skills: philosophy, mathematics and physics. Philosophy can make people smart, mathematics can calculate everything in the world, and physics, when you learn it to the depths, you can move mountains and seas and change the world by waving your hand!

Originally, he and Ren Cong thought this might have been a bit exaggerated. However, on the day the solar eclipse appeared, he witnessed the elder brother sending a huge altar and the monks in the altar to the West together with at least one hundred steps away from the sun. He and Ren Cong no longer dared to have any doubts about the power of the master's unique skills!

Three packs of black medicine powder, three pottery jars filled with medicine powder, the medicine twists were rubbed by their brothers, and the fire was also lit by them. They had no reason to suspect that the situation was false at that time. It was precisely because they participated in the entire shelling process from beginning to end that the impact on the two of them was even stronger after the altar was blown to pieces, so strong that the two of them dreamed that they would carry a fire-breathing copper bell and kill all directions. The point of the clock mouth, whether it was a god or a ghost, was destroyed!

Now, the elder brother is actually preparing to teach the knowledge of changing the world. How can Guo Nu and Ren Cong not be excited? Unfortunately, this feeling of excitement lasted less than ten breaths and disappeared. Instead, it was a deep sense of frustration.

They could hear every word the elder brother said clearly. However, only the first few words were only able to understand them, and the next one was like hearing the heavenly book!

"The world is material, and matter is not only the five types of "gold, wood, water, fire and earth", but can also be subdivided. The Master has found 92 elements, all written on the table in the hands of you two, and more can be found in the future. At present, the Master has summarized these 92 types into the Seven Main Tribe, the Seven Deputy Tribe, the Eighth Tribe and the Zero Tribe..." (Note: Currently there are 119 types, and 92 is a number that can be found in nature.)

Leaving some time for the two junior brothers to be confused, Zhang Qian picked up the tea and drank it in big mouthfuls. In just ten minutes of class, he was even more tiring than an hour before the two intrigues with Luo Huaizu.

Although in another time and space, he studied at a normal university and also specialized in psychology and teaching skills classes, he found that he was really not suitable to be a teacher.

When I was in junior high school, the teacher talked about the periodic table of elements, and it didn't take long for the whole class to listen clearly. But I prepared the class in advance, but I even stared at Guo Nu and Ren Cong, who were not stupid.

However, after thinking about it, Zhang Qian looked at Guo Nu and Ren Cong's eyes again with sympathy.

In another time and space, a junior high school student from China may have been with TV and the Internet, and he should master the knowledge he should not master. Every day from morning to night, it surged into his mind like a tide. In the eighth century, China had less than 10% literacy rate and read more of the Confucian classics. People's understanding of the world almost stopped in the Western Han Dynasty. How could it be possible to understand the concept of elements and the chemical properties of elements of the same clan at once?

However, Zhang Qian was sympathetic, but he was not anxious for Ren Cong and Guo Nu. Compared to the junior high school students in another time and space, the amount of information they had come into contact with was the weakness of the two. However, learning Confucian classics since childhood was a child was entirely due to rote memorization, and their memory was trained to have the potential to be a top student. Things that they could not understand for a while will not delay them from memorizing them. After memorizing them, it would not be too late to learn while understanding them in the "experimental class"!

Zhang Qian had already prepared the test class. Although the fine-mouthed glass bottles and curved-neck steamer customized from the Liuli Wang family were not colorless and transparent, and the bottle was too thick, the paper used to demonstrate the lack of oxygen and extinguishing of oxygen and the existence of oxygen in the burning paper can still meet the requirements. (Note: There were unearthed cultural relics in ancient China and were invented very early. It was just because of price and quality issues, and it was not popular.)

As for the materials that heat the oxygen, it is better to find them. Sun Anzu, who has been here to treat Zhang Qian's wounds and drink wine for free, is a descendant of Sun Simiao. There are not too many cinnabar, lead elixir and three immortal pills hidden in this hometown. In order to figure out the difference between these medicines, Zhang Qian also secretly conducted several heating tests and finally found that the cheapest lead elixir has the best effect. He finally decided to choose it as the main material to demonstrate the existence of oxygen. (Note: cinnabar is mercury sulfide, but when Taoists refining elixir, they cannot distinguish between mercury sulfide and mercury oxide, so it is basically a mixture of two substances. Lead elixir is a mixture of lead peroxide and lead oxide, while the three immortal pills are a mixture of mercury oxidation and other impurities.)

Facts have also proved that whether in the 21st century in another time and space or the 8th century in this time and space, experimental classes are far more popular than theoretical classes. When Zhang Qian ordered Ren Cong and Guo Nu to put away the periodic table of elements, copy the text he prepared and take it back to recite, their mouths twitched into buns. When Zhang Qian took out a small alcohol lamp, glass bottle and bent neck steamer from the bookcase, their eyes immediately began to shine brightly.

The test process is very simple and the results are easy to accept. Especially when Zhang Qian corresponds to the yang energy, nitrogen and other gases claimed by Taoism and the yin energy claimed by Taoism, Guo Nu and Ren Cong were so excited that they danced with excitement.

This time, they understood without any effort. And they vaguely felt a joy that revealed the secret of the world.

"The things are all in the study. If you two want to operate them yourself, you can come in at any time. Just be careful not to cause a fire!" Thanks to the two junior brothers for coming to rescue each other in time tonight. At the same time, they also remembered the requests they proposed a few days ago to guide their respective families to make money. Zhang Qian, Guo Nu and Ren Cong, put away the curved neck steamer and the narrow-mouthed glass bottle in their reluctant eyes. Then, they took out a small iron pot, a funnel and a large bowl.

"The next thing I will teach you is called coarse salt purification. After learning this trick, you will find that the expensive green salt on the market is easy to make." While saying that, Zhang Qian directed the two to take action, melting the black and dirty officials who were mixed with sand into the water. Then he directed the two to repeatedly filter out the impurities in the salt water with kudzu cloth until the salt water was almost as clear as cold water, and then put it into the iron pot. When Guo Nu and Ren Cong lit the alcohol stove with their own hands, they watched the salt water in the iron pot dry up and finally turned into a pile of pure white powder. The two were so excited that their fists were clenched, and the veins on their foreheads were jumping around.

In the Tang Dynasty, the green salt with excellent texture has always been sold as a luxury product. Even the Ren family and the Guo family dared to use it to brush their teeth for their owners and would not use this item to cook. Today, the two of them personally turned the coarse salt sold by the official into a luxury product with a quality far better than the green salt! (Note: Qing salt, a crystalline salt from the salt mineral of Qinghai generation. Because of its pure content and good taste, it has always been expensive.)

The official sales of salt in the Tang Dynasty were not allowed to be involved in it. However, the Guo family and the Ren family had enough ability to buy coarse salt in large quantities. After purifying the coarse salt and selling it as a luxury product, it not only could bypass the ban on monopoly sale of salt and iron, but the profits that could be obtained would also be a scary number.

"You can teach this trick to your family. As for how the elders in the family make money, don't get involved." Zhang Qian didn't feel too surprised when he saw Guo Nu and Ren Cong's expressions. He smiled and whispered a reminder.

"Really?" Guo Nu and Ren Cong could not believe their ears. The questioning words blurted out.

When they saw Zhang Qian nodding slightly, and there was no sign of pain on his face. The two of them both clenched fists loosened, and they all squatted beside the alcohol stove as if they were exhausted.

"Did you remember it? If you didn't remember, just do it again by yourself!" Zhang Qian reminded him thoughtfully, turned his head, began to wash his hands and clean up the stall, and prepared to rest. "If you don't understand, you can ask me anytime!"

This method of making money is actually much simpler than that of cauliflower. However, he had not had the courage to take it out before. The reason was that he did not have enough strength, but he was involved in salt trading, which was equivalent to seeking death.

Now, his business of Hualushui has gradually stabilized. With his status, it is not so easy for others to snatch Liushen Commercial Bank. The method of purifying salt, which requires excessive political resources, is very useless to him.

Therefore, Zhang Qian did not do it himself, but passed this idea to the Guo family and Ren family through his two junior brothers, which is the most appropriate.

First of all, the Guo family and the Ren family, or the Guo family and the Ren family, have enough strength and political resources to resist and resolve the risks brought about by the transaction of purifying salt...

Secondly, in the conflict with Buddhism some time ago, although the Guo family and the Ren family did not stand publicly on his side, they did not hinder Guo Nu and Ren Cong from bringing their servants to help. This kind of kindness is worthy of reward.

Finally, based on the current happy cooperation between the two parties, Zhang Qian is willing to let the two families have an extra shortcut to make money, and thus bring their relationship closer together. In this way, when Zhang Qian encounters trouble in the future, the two families will have more motivation to help.

"Filter it again. Although the eldest brother asked us to filter it three times just now, the color of the water is clearer than this time!"

"I just filtered it three times, and if it is too much, it will be a slight increase."

"Ding! Ding!"

...

The whispers and the sound of metal collision sounded under Zhang Qian's feet. However, Guo Nu and Ren Cong did not dare to take it lightly. Before he left, they began to repeat the entire coarse salt purification test process.

"Yes!" Zhang Qian smiled and nodded easily.

As a teacher, he is not afraid of students' slow reactions, so he regards students as lazy and have good face, and insists on not knowing it. As for the motivation to motivate Ren Cong and Guo Nu to be so serious and easy to learn, he doesn't care.

Both junior brothers were born in merchant families, and it was strange that they could not see the interests hidden behind the coarse salt purification experiment. As for Ren and Guo’s family, just like investing in the Fengyoujing industry, Guo Nu and Ren Cong had a tacit way to deal with it, and there was no need for Zhang Qian, the senior brother, to intervene.

However, this relaxed and comfortable feeling was not even over the second test, and it was stirred up by the sudden sound of footsteps in the yard.

'"Who?" Guo Nu jumped up like a lion who had been passively rushing to the door step by step. Ren Cong walked tacitly to the window and pulled the sword out of the scabbard.

The two brothers can share the interests and be polite. If a third person wants to spy on it, they will definitely give a fatal blow. Even if this person enters the inner courtyard, he does not alarm the big goose in the courtyard.

"Mr. Guo Shaolang, it's me! Ren Quan!" The answer quickly came into the room, which made Ren Cong breathe a sigh of relief immediately.

However, the next sentence immediately followed, his heart was raised to his throat, "Is Mr. Ren also in the study of the owner of my house? His family sent someone to send an urgent letter. The Liuli workshop located in Xinfeng County caught fire and burned several friends to death. King Liuli himself was arrested and the Xinfeng County government office!"

"What?" As soon as he finished speaking, not only Ren Cong was anxious, but Guo Nu also had his eyes on fire. He walked forward and grabbed Ren Quan's arm, "What did you say? What happened so long? Why did the Xinfeng County Government arrest Wang Fugui?"

"The Liuli King's Liuli Workshop is going to explode the kiln, just tonight. Why did Xinfeng County Government arrest Liuli King? It should be that many of the workers in the workshop died. I was afraid that he would not be able to explain to the victim after he ran away!" Ren Quan gasped and responded quickly, his face so anxious that he was covered in sweat.

It’s not that he was panicked. As Zhang Qian’s butler, he knew the production process of Liushen Flower Dew in the village. It was also a liquid that emitted fragrance, Liushen Flower Dew could be sold more than ten times more expensive than Fengliu essence, and it was also popular. The beautiful glass bottles played a great role in it. It made people know that the things in the bottle were very high-end, and they were definitely not as good as Fengliu essence in porcelain bottles.

Because of the low demand, the glass bottles used by Liushen Workshop to distribute flower dew have always been exclusively supplied by Liushen King. The style and size of the bottles are also strictly regulated. Now, the workshop of Liushen King's family has been burned by the fire, and Liushen King himself has been arrested by the government. Liushen Workshop will definitely suffer heavy losses because the word "Glass Bottle" is not available.

"Don't panic first. Our workshop has not been rebuilt yet. It will be a matter of the New Year to put it into production." The only thing that remains calm in the yard is Zhang Qian, the last one who walked out of the study. He stepped forward and patted his next Ren Quan on the shoulder, and comforted him with a smile. "It's not difficult to make glass bottles. If you really can't find someone to provide them, we can build them even if we open our own workshop."

"Master, do you know how to make glazed glass?" Ren Quan was surprised and happy, and the anxious look on his face disappeared in an instant. "That's good, that's good. The roads and canals in the village were repaired soon, and a glass workshop was opened, which just happened to allow the patriarchs to do something."

"Senior Brother, King Liuli is my friend. I must go to Xinfeng to see what's going on." Ren Cong's face did not show any relaxed expression, and he bowed to Zhang Qian and solemnly requested.

Seeing that he could even give up the benefits of purifying coarse salt for a while, Zhang Qian immediately understood the weight of Wang Fugui's friend in Ren Cong's heart. He smiled and nodded slightly, "It's so late, you can't see the magistrate of Xinfeng County. Why not first find a way to send someone to the Xinfeng County prison to clear it up so that King Liuli will not suffer in it. As for the pension and other after-care issues, you will arrive at the Wang family early tomorrow morning and respond to him first. Since he is one of the shareholders of our Liushen Commercial Bank, the business bank cannot ignore it when encountering trouble!"

"Yes! Senior Brother!" Ren Cong was confused, but he knew that Zhang Qian's arrangement was more reasonable. He thought about it and nodded vigorously.

"I'll send someone to clear the affairs of the yamen. I'm more familiar with you!" Seeing his ignorant look, Guo Nu didn't care about continuing to purify the coarse salt. He thought about it and whispered to the side.

After saying that, without waiting for Ren Cong to respond, he quickly turned his head to Zhang Qian, "Senior Brother, King Liuli is a talent. Even if he doesn't support it this time and his business is over, it's worth our efforts to help him."

"Okay! You brothers are discussing it!" Zhang Qian believed that he was not as good as Guo Nu and Ren Cong in the specific operation in the business world, and nodded decisively, "If King Liuli had never done anything bad, his reputation would be acceptable. When needed, he would also put out my sign. In the Xinfeng County Government, he might give me some face!"

"Thank you, Senior Brother." Ren Cong finally smiled a little on his face when he heard this, and he couldn't wait to salute Zhang Qian.

"I just knew that Senior Brother Xie, I, the second senior brother, deserved to work for you, right?" Guo Nu immediately became jealous, pushed Ren Cong and protested in a low voice.

"Thank you, Senior Brother," Ren Cong was so amused that he had to thank him again. After he straightened his waist, the anxiety in his heart was dispelled a lot.

The two brothers did it as soon as they said, and immediately started their actions separately. Originally, they thought that it was just a simple workshop that caught fire. As long as Wang Fugui, nicknamed Liuli King, was willing to pay for the family of the guys and fished out the man out of the prison, it would not be too troublesome. Unexpectedly, after three consecutive days, the two brothers failed to get what they wanted. In the end, Guo was helpless and simply moved out his father, Guo Ju, first to come forward to guarantee, so that Wang Zude, magistrate of Xinfeng County, could let go, but forced the Wang family to leave three thousand hushed deposits to prevent Wang Fugui from escaping.

Although Wang Fugui himself was not guilty of any serious crime in prison, he was also torn to pieces. After getting on the carriage specially prepared by Ren Cong for him, he immediately collapsed in the carriage with a "thump". At the call of his wife and children, the man finally recovered for a while. Then he ordered someone to stop the car and chased him to escort him home in three steps and two steps, and knelt on his knees: "Second brother, Xiaowu, I dare not thank you for your kindness. In the next life, Wang will definitely repay you as a cow and a horse!"

"What are you talking about, Fatty Wang! Who can we brothers follow whom? Do you need to be so polite?" Ren Cong and Guo Nu became officials not long ago, but they had not yet got rid of the smell of a playboy. Seeing that Wang Fugui actually gave such a big gift, he quickly jumped off the horse and helped him with a smile.

"I won't go home. Second brother, Xiaowu, please send me to Jingzhao Mansion. I want to sue the magistrate of Xinfeng County! The workshop was not burned by a fire at all. He arrested me just to protect the arsonist and give this person a chance to escape!" Wang Fugui refused to get up, gritted his teeth, and tears fell like rain. "I don't want the workshop anymore. The remaining wealth is enough for my wife and children to survive. I have fought for this life and want to seek justice for myself and the guys!"
Chapter completed!