Becoming a stepmother of three children gives me space

Outside the classroom,

The emperor was very interested. He guessed that this phenomenon was related to onion water, but he didn't know the specific principle.

“Who can understand this?”

The guards were all rough men, and they were just curious. Asking them to explain the reason would be embarrassing for them.

The commander-in-chief frowned and said:

"It's a sleight of hand."

It is true that listening to your words is like listening to a conversation. He has brought nonsense literature to its fullest extent. Are we fools that we cannot see it?

"Remember the burning point problem the teacher talked about?"

The children stretched their necks and shouted at the top of their lungs:

"Remember....."

Xiao Yunxi handed the experimental papers to the first group of students and circulated them throughout the class.

"Did you see anything wrong?"

They all shook their heads, and a few smart children boldly spoke out their discoveries.

“The part where the words appear is a bit dry.”

"It looks like it's burnt."

"It's burning."

Xiao Yunxi praised the children who spoke bravely.

"Onion juice forms a transparent film. Its ignition point is lower than that of paper, so it gets burned first when heated. Therefore, the brown writing is the scorch mark. The student who discovered it is very good and very careful. For those who didn't, don't be discouraged. Be more careful next time... Many substances have special properties that we can use to write secret messages without being discovered... The teacher's homework for the students is to find substances in nature with properties similar to onion juice... get out of class dismissed."

"stand up."

Daya stood up and took the lead in bowing to Xiao Yunxi:

"goodbye teacher."

The crowd outside the classroom dispersed, and the children left with their schoolbags on their backs.

Their schoolbags were the backpacks that Xiao Yunxi distributed to all of them. They came in various styles, including Q-version tigers, cute cats, and big-eyed squirrels.

The emperor was very curious and stared at the schoolbag in deep thought.

If it were really possible to write a letter without leaving any trace, it would require special processing methods to be displayed, which would indeed be very suitable for spies to pass on information.

And what about the flash point that Xiao Yunxi mentioned?

He didn't understand what it was, but the children seemed to understand.

"Grandpa Huang?"

Dabao brought Xiaobao and Niuniu out and was quite surprised to see the emperor. Xiao Yunxi heard the sound and chopped over: The dog emperor came really fast!

The industrial park behind Xiaojiazhuang.

Xu Chengzhi, the prince of Ruiguo, Shen Cong, the heir of the Shen family and Zhou Jin's cousin, and Zheng Tianming are checking the strength of the cement wall.

They arrived at the village in the morning and built the wall with their own hands, watching the cement dry and become extremely hard.

"Cousin, cement is a magical tool, but I wonder how much it costs to make it?"

"The road outside the village is 4 inches thick and 6 feet wide. One li requires 200,000 jin of cement, which costs 400 liang, or 1 wen per jin."

There are lime mines and clay in the back mountain of Xiaojiazhuang. The cost of burning cement is currently negligible due to the low labor cost, and the cost of coal is even lower.

There are abundant coal resources around the capital and the price is relatively low. One pound of coal costs only 4 cents, and the cost of burning 20 pounds of cement is at most 4 cents.

Zhou Jin's quotation,

The price increase is based on the market price of limestone and clay, taking into account the changes in the supply and demand of raw materials caused by the large-scale firing of cement.

As well as future expansion, investment in the research and development of new cement, and Xiao Yunxi's individual profits are all included.

The cost price of 2 wen per catty, even if the selling price is 3 wen, although the profit is large, it will not make people have bad intentions, especially since the initial supply of cement must be from the court.

The price is increased to facilitate negotiation.

Even though the Zhou family reported a high cost for cement production, Xu Chengzhi and Shen Cong still saw an unlimited and broad prospect.

Ordinary people can use it to build houses, and the imperial court can use it to build cities, official roads, and even river embankments in the future. The benefits are huge.

The Zhou family asked Xu Chengzhi and Shen Cong to come to discuss cooperation.

The way of cooperation is simple and crude.

Xiaojiazhuang is responsible for providing cement, with each bag of cement (100 jin) costing 250 wen, while Qinwangfu, the Shen family, the Xu family, the Zheng family, the Zhou family, and the Murong family are responsible for sales.

The final profit was 3% for the Qin Palace, 2% for the Zhou, Shen, and Xu families, and half for the Murong and Zheng families.

The Qin Palace has a veto power, and shares cannot be bought or sold. If you want to sell them, you can only sell them to the Zhou family or the Qin Palace.

"What is a veto?"

"Business decisions are made jointly, but when there are disagreements on major decisions, the Qin Palace has absolute decision-making power. This will be written into the contract."

Xu Chengzhi and Shen Cong looked at each other.

There is no free lunch in the world, only traps. If their two families were not closely related to the Zhou family, the two of them would probably have stayed away without asking the reason.

“Cousin, this is giving us money for free, what should we pay?”

The Zhou family really wanted to give away money for free, with the goal of tying the Shen family and the Xu family to the chariot, while the Zheng family and the Murong family were simply there to take advantage of it.

The effect of cement will definitely attract the emperor.

All land under heaven belongs to the king, and all the people in the world are his subjects.

The world and its people belong to the emperor. If the emperor wants the cement manufacturing technology, shouldn't he selflessly donate the formula to others?

Although Daxia has patent protection, the law is just a decoration for what the emperor wants.

The Qin Palace took the lead, with the participation of the Shen, Xu and Zhou families. Even the emperor could not rob it openly because the impact would be too bad, so he could only buy it with money.

Xu Chengzhi and Shen Cong thought, it is really hard to get the money.

Knowing the function of cement, the emperor would definitely want to take it for himself. Their cooperation with the King of Qin was equivalent to directly resisting the pressure, which would make the emperor disgusted.

When the crown prince died, Duke Rui demanded a thorough investigation, which angered the emperor. He was forced to feign illness and stay at home, keeping a low profile as much as possible to prevent the emperor from causing trouble.

The Shen family is walking on thin ice because of the tense relationship between the Queen and the Emperor.

They support Dabao in their hearts, but publicly taking sides is related to the survival of the two families, which is not something Xu Chengzhi and Shen Cong can decide.

The two men hurriedly left Xiaojiazhuang and rushed back to the capital to discuss with their family. They didn't even know that the emperor was in Xiaojiazhuang.

The emperor observed the reception room of Xiaojiazhuang curiously from the moment he entered. The decoration was very different from the traditional decoration, simple yet solemn.

"Did you design the house?"

The emperor looked over, and Xiao Yunxi nodded:

"When I have nothing to do on weekdays, I like to think about these things."

"Did you invent cement while you were bored?"

"Your Majesty, you are so kind to me... His Royal Highness the Prince of Qin and Master Tianji played a leading role in the development of cement."

You're kidding me.

Tianji Taoist used the emperor's letter, what role can Dabao play? This is to increase Dabao's merit.

No one believed the truth, Xiao Yunxi felt helpless.

The person who played the biggest role in burning cement should be Tianji Taoist, followed by Dabao. Xiao Yunxi's biggest role was to provide theoretical support.