Get the resurrection scroll, and eat melons and meat after entering the book

Wu Qing first drew two cross-section diagrams for Helian Han and showed them to the man.

The man tilted his head, looking as if he understood something, frowned, and carefully traced the lines drawn by Wu Qing with his fingers.

Wu Qing lifted Helian Han's hand and explained, "This is a vertical cross-section of the river. Here, simply building a wall in the river can play a role in flood control. In fact, this wall is a weir..."

When Wu Qing was passively instilled with this knowledge by his grandfather, he learned that heavy rainfall in the rainy season would cause the river water level to rise and flood nearby land. To prevent this from happening, just build a dam at the appropriate location of the river to lower the water level downstream, thereby reducing the probability of flooding.

She was very eager to understand the principle behind this: according to the principles of fluid mechanics, the total energy of the fluid is conserved during the flow process.

When the water level rises upstream, the kinetic energy of the water is converted into potential energy, and the water downstream is converted from potential energy into kinetic energy, causing the flow rate to increase.

Due to the law of conservation of energy, the energy of the upstream and downstream water is the same, so the speed of the downstream water will increase and the height will decrease.

When her grandfather gave her an experiment in the sink at home, she saw the following results:

The water level flowing over the weir reached two centimeters, while the water level downstream was only 4 millimeters, which was nearly 80% lower than the rising water level upstream.

What she cares about now is not only how much the water level has been reduced, but also how the river flow rate has greatly increased.

So what she wants to use now is this result, which is enough to carry away the silt that was originally settled due to the slow flow of water.

What appeared before Helian Han was just such a simple blueprint.

Helian Han was very surprised, "Really?"

Wu Qing looked into Helian Han's eyes, nodded, and said firmly, "Seriously. This weir is not easy to build. You can make a model first and try it out. And you can put sand and gravel at the bottom of the weir to see the effect of scouring and silting. Then you will know that I have played with this water since I was a child."

Helian Han looked up at Wu Qing with deep eyes.

He unfolded another piece of paper, held it down with a paperweight, and quickly drew another one based on Wu Qing's drawing, blowing the ink dry. "Someone come here."

Xiao Luzi immediately walked in and said, "The servant is here."

Helian Han ordered: "Send this to the Imperial Household Department and have the finished product delivered tomorrow. I want to use it as a test, so it must not leak."

"Yes, I'll go right away." Eunuch Xiaoluzi responded and retreated.

Wu Qing stretched her head out to take a look with a curious look. What? It wasn't much better than her own drawing. Why did she draw a new one and throw her own drawing aside?

After Xiao Luzi left, Helian Han looked up and saw Wu Qing with her cheeks puffed out and eyes wide open. He didn't know what she was thinking, and his heart suddenly softened.

He reached out and grabbed Wu Qing, "What are you thinking about?"

"You look down on the pictures I drew. Who are you looking down on?" Wu Qing puffed out her cheeks and said dissatisfiedly.

Helian Han: ...How can he explain this?

He could only ask in his heart: Are there souls from other worlds that are so foolish? I was afraid that you would be exposed in front of others.

Helian Han lowered his head and said if he couldn't explain clearly, he would just shut his mouth. That way there would be no need to explain. He didn't like explanations anyway.

But what Helian Han didn't expect was that when the two of them fell on the bed, just missing a piece of cloth, Wu Qing shouted to stop.

Helian Han was staring at Wu Qing with a wolf-like look in his eyes, but suddenly his wolf-like eyes changed. The corners of his eyes turned red, and he looked very aggrieved.

This made Wu Qing feel very sad, and in the end she had no choice but to let the big hand wrap her small hand...

The next day, when Helian Han was testing the model of the weir, Wu Qing had already arrived at Shengyanju.

Wu Qing came early today, and the shopkeeper hurriedly sent someone to invite Mrs. Xu over.

While waiting, Wu Qing said to He Cui, "Go order some jars from the farm for packaging the sauce. Also order a few large vats."

Mrs. Xu asked someone to serve the new dishes that she had just tried. The chef personally brought out the new dishes that were developed using sauces. After the dishes were served, he did not leave but stood aside waiting for the two people to comment.

As expected of a chef like him, this is even better than Wu Qing's cooking. Whether it's meat or vegetables, the heat is just right.

Mrs. Xu also praised it highly after tasting it.

Wu Qing's eyes rolled. "Madam Xu, please keep this dish and give the jade meatballs to the guests for a taste test."

Mrs. Xu's eyes lit up and she nodded. "Great idea!" She gave the order, "Every guest in the private room at Shengyanju will be given a jade meatball without kimchi inside. We've said it's a new dish, and the owner invites everyone to taste it."

The dishes had just been delivered, and Wu Qing didn't want to wait for people's praise. Just then, He Cui came back and said, "Sister, the small jars are available now and will be delivered to us in a while. We need a jar that big to be custom-made, and it will take ten days to make it. The boss over there wants a deposit..." The money she brought was not enough, mainly because she didn't expect Wu Qing to buy things, and she didn't have much silver on her.

Mrs. Xu didn't understand what was going on at first glance, so she immediately asked the nanny beside her to get some loose change and gave her a fifty-liang silver note.

This is too embarrassing. It’s not like Mr. Xu is treating her to a meal. Wu Qing waved her hand and refused.

Madam Xu said, "I'll keep this in mind. I'll deduct it from our partnership profits."

Wu Qing gave Madam Xu a thumbs-up. "Madam Xu is really straightforward and quick-witted. If that's the case, I'll take it. I just need the money. Madam, please keep track of the account."

Wu Qing went to Chengnan Zhuangzi after noon, and all the guests who had tried Shengyanju ordered a plate of Shengyanju's new dishes, and some even ordered jade meatballs. It was truly an unprecedented occasion.

It was just that Wu Qing was not there and did not see the excitement, and she also missed the chef's uncontrollable smile.

Mrs. Xu did not expect this situation. The jar of sauce was used up in just one dinner time.

Thinking about Wu Qing saying that she would come on the fifth day, if someone else wanted to come, I could only postpone it to the sixth day. Who knows when Wu Qing would arrive on the fifth day? It's safer to delay it for a day.

Wu Qing arrived at the farm and said, "Boss, give me a room. I want to stay here for a few days."

Yao Da hurriedly bowed, "Master, just call me Yao Da."

Wu Qing saw that this man was older than her, and it would be a bit strange to call him by his name, so she decided to call him... "Then I'll call you Yao Zhuangtou, that's settled."

Yao Zhuangtou agreed and quickly sent people to clean up the yard for the master to live in.

Wu Qing's main purpose in coming was to see how the school in the village was doing, so he asked, "How's the matter of hiring a scholar to teach people how to read going?"

Yao Da looked miserable. He had just mentioned this the day before yesterday, so why was he only looking at the progress today? Wasn't this too fast?

But he could only think about it in his heart and didn't dare to say it in front of his master!

He then ordered, "Go and clean up a yard for the scholar to use for his lessons. We'll also need tables and other things. Go and arrange them now. Come back to me if you need anything else."

No one knew who Helian Han gave the order to move the horse farm to, but he was a decisive person and arranged for people to take the horses and the horse breeders away in the afternoon.

Also in this farm, Feng Shoutian watched the horse farm evacuate, and without wasting a moment, he started to have people plow the soil before it got dark, turning as much as they could to get the work started.

He planned to turn over the hard ground, plow it deeply, and mix in soil from the mountain.

When Wu Qing returned to Shengyanju on the fifth day of the first lunar month, Madam Xu had been waiting for her for a long time. As soon as she came in, before she could even drink a sip of water, Madam Xu asked, "How much of that sauce is there? Bring it all over. We don't have enough left now."

Wu Qing smiled and shook her head. "Sauces are seasonal. Usually, they start being made in March and mature in July. If Madam Xu doesn't follow the high-end route she initially took, the ones she has in stock now won't last much longer."

Madam Xu immediately grasped the key point. "Young lady, you're talking about the usual, but what about the unusual? Are there other methods?"

Wu Qing nodded. "If I had the raw materials, I could think of a way to make it now. I might be able to produce a batch in three to four months, which means next February. But I don't have the raw materials right now." She spread her hands. "No raw materials."

Mrs. Xu asked hurriedly. Her family was in business, so if she was short of raw materials, she could tell her quickly, "What raw materials do you need?"

"Shu!" Wu Qing finally dug out the word from her mind. Fortunately, she had seen it before, otherwise it would be hard to say. Telling them it was soybean now might be too advanced.

"Just beans?" Mrs. Xu asked. If you have anything, tell me all of them!

"There's also salt, nothing else." Wu Qing spread her hands. This sauce needs to be dried in the sun.

Mrs. Xu raised her eyebrows in disbelief.

Wu Qing looked into Mrs. Xu's eyes and nodded sincerely.

Madam Xu, "It seems the recipe is the biggest secret."

Wu Qing admitted generously: "That's right."

Mrs. Xu slammed the table and said, "Beans and salt are all provided to you. In February, I need a batch of sauce."

Wu Qing waved her hands together. "I can't guarantee that. I'm just trying it out. It'll take at least two months to know if the experiment was successful."

Madam Xu gritted her teeth and said, "You're welcome to try. I'll be waiting."