Li Xueyi also knew Li Yu's virtue and understood the situation in the family, but was afraid that Princess Qin would be embarrassed, so he quickly answered the conversation to relieve Changsun.

In fact, Changsun himself did not feel any embarrassment, but felt that strangeness was revealed everywhere in this family.

Li Xueyi pointed to the roof and asked, "Li Yu, why didn't I see a big house like you that has a beam?"

"Why don't there? You see, isn't that the beam in the middle? But it's not used wood, not to mention that there is no such long wood, right?" Li Yu pointed to the cement beam on the top of the living room to show them.

After seeing the square cement beam on the roof, Changsun asked in confusion: "What material is this? It's not a round beam. Why have I never seen such a material before?"

Li Yu said simply: "Cement, sand, stones, and steel bars."

After saying that, Li Yu said again: "Cement can not only build houses, but also build large bridges and roads..."

After hearing this, Li Xiuning was very shocked. Such an important building material could be made so simple, and asked in disbelief: "It's that simple. After burning the stones and adding some other things, you can make cement. In the future, you can build roads, build houses, and build bridges...?"

Seeing their surprise, Li Yu said in a solemn tone: "Cement will be the main material for various large-scale civil engineering projects, including road construction and bridge construction, and it can also be said to be a good material that cannot be replaced."

After hearing this, Li Xueyi thought of the prospects of a new material such as cement, and quickly stood up and asked excitedly: "Then let's build a few workshops, aren't we going to get rich?"

Changsun also looked at Li Yu directly. When Li Yu talked about the functions and powerful effects of cement, she also wanted to participate.

"Haha! Of course, as long as you have the skills, there are many places where you can make a fortune. This is just a small business, it's nothing." Li Yu didn't take the money in the world to heart, but just laughed.

Li Xiuning was afraid that others would snatch the cement business, so she didn't wait for others to speak, and said, "Li Yu, you think the business is small, give me the technology of how to produce cement! I don't think it's small."

"Hey! Who told me the previous paragraph that I couldn't make money with the court, and I also said that if I made more money, the country would make less money. How could I change my mind today?" Li Yu turned his head and asked with a smile.

Li Xiuning blushed and said, "At that time, I didn't understand what wealth was, but now I understand what wealth is."

After saying that, he rolled his eyes to Li Yu and added a harsh sentence: "Do I understand now?"

"What does it mean to understand what wealth is? What's going on in the end? Why can't I understand what you are saying?" Changsun asked in confusion when he saw Li Yu and Li Xiuning sing together.

Li Xiuning told Changsun the Changsun family verbally about the conversation between him and Li Yu that day.

"It turns out that wealth is not fixed! I originally thought wealth is fixed, but it turns out that wealth is generated like this?" Changsun said while thinking.

Li Xiuning felt the coolness of the fan and asked, "I didn't see anything in Li Yu's hall lights and fans!"

"Electricity!" Li Yu just spit out a word.

"electricity?"

"electricity?"

"electricity?"

The three of them exclaimed in unison.

In their perception, electricity seems to only appear on thunderstorms. What's going on with the electricity he mentioned?

Li Xueyi looked confused, but asked with a joke, "Li Yu, you are not stolen from the sky back to your home!"

"You guys cool down for a while now, I'll take you to see how electricity is made." Li Yu waved his hand, unwilling to waste too much talk.

"Please have tea!" Li Chun brought a cup of tea to each of the people.

When Li Xiuning saw the tea, she quickly touched her lower abdomen, bowed a few times, her face turned slightly red, and she hurriedly said, "Fei'er! Let's go to another room to see if there are any other babies I have never seen."

When Li Feier saw Li Xiuning's appearance, she understood what she was going to do.

"Um!"

Li Fei'er took Li Xiuning and Changsun to another room.

The conversation between the three girls came from the room: "What is this? There is also an iron pipe. Can't it be filled with water?"

The person who asked about it was Changsun.

"Well! This is tap water, that is a valve, and you can get out of water by opening it."

"Fei'er, stop talking about water. When I hear it, I can't hold it in my mouth... You don't know that the tea I made today is so delicious. I drink too much tea. Where is your cottage? Hurry up, I can't hold it in anymore."

"Uh! Which room are you going to? Just sit on that one? That one is the toilet?"

"Fei'er, everything is weird in your family. I don't know what your brother thinks every day, so he will make things convenient. Your brother just likes to make trouble, and he designed it like this when he went to the cottage."

"I feel it's very convenient. After using it, I rinse the water and it's clean and there's no strange smell." Li Feier explained.

"Hey! Is this the paper used to wipe your butt?"

When Changsun saw the items in the bathroom and bathroom, he asked wherever he didn't understand.

“Shhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

"My mother! I was about to suffocate me to death just now. Now I feel comfortable." After a long moment, Li Xiuning let out a refreshing sigh.

Then came, and the three girls laughed.

Changsun was surprised and then said softly: "Sister, look at those large mirrors, which are bigger and clearer than the mirror on your dressing table in your room. Can the third sister ask Li Yu to give me such a mirror?"

"Haha! What a treasure. This mirror is much bigger than mine. You can see it all. If he doesn't give it, we can just unload the mirror. I have to take a look at any other treasures?" Li Xiuning also saw several glass mirrors one-person-high inlaid on the wall of the bathroom, and laughed happily.

When Li Yu heard the conversation between the three girls, he was speechless to Li Xiuning, the woman.

Li Xueyi was an ordinary person and did not hear the voices of the three women. He just saw Li Yu not speaking, which made him very surprised.

Li Xueyi said enviously: "Li Yu, it's really good that the house you have spent four months to build! How about it if you want to have a house in the princess's villa in the future?"

"Haha, is it the princess or yours?" Li Yu asked with a smile.

"You boy, the princess will definitely like such a beautiful house, but she hasn't even been able to tell you yet!"

"Well! Let's talk about it later. Judging from Xiuning's meaning, if she likes it, will she live here in the future?"

After hearing this, Li Xueyi immediately looked unhappy, gave Li Yu a blank look, and said, "You are talking nonsense, the princess is not reunited now, and you have not married the princess home. How can she live?"

Li Yu didn't explain anything. Just as Li Xueyi was about to say something, he heard the conversation between the three girls again.

"Hey! Why didn't I see timber fire, coal balls, etc. at Fei'er's house? How do you cook in the future?" Li Xiuning looked at the clean kitchen and asked in confusion.

Li Feier pointed to the gas hood and said, "Our family will no longer use the ash and dirty things to cook. We will use biogas to cook in the future.

You guys can cook this way.”

"Bang!" sounded.

The gas stove emitted a blue flame.

When Li Xiuning saw the flames emitted from the gas hood, she shouted in surprise: "Just with a "bang", you can cook? I think the flame is smokeless and tasteless."

"Well! But there is a certain danger in using biogas. You must not leak air, otherwise, my brother said it would explode." Li Feier said from the side.

Changsun discovered that there was nothing under the gas stove, and it even emitted flames.

Changsun continued, "I didn't expect that something invisible can still cook! It's so magical."

After amazement, Changsun asked again: "By the way, what is biogas in Feier?"

Li Feier said in a hurry: "In fact, we can often see that bubbles appear in swamps, sewage ditches or septic tanks. If we use fire, we can actually ignite it. This is the biogas that naturally occur in nature.

Our family now uses artificial biogas. It means digging a deep pit outside the villa and sealing it. The bacteria in the deep pit decompose organic matter and produce biogas. The process of biogas is called biogas fermentation, including fermented bacteria, hydrogen-producing acetic acid bacteria, hydrogen-producing acetic acid bacteria, hydrogen-producing acetic acid bacteria, hydrogen-producing methanogens, and acetic acid-producing methanogens. The activities of the first three groups of bacteria can make the organic matter form various organic acids, and the activities of the latter two groups of bacteria can convert various organic acids into methane. The biogas is colorless and odorless, and will burn after mixing with an appropriate amount of air."

After listening to it for a long time, Changsun did not understand what vitality was. He just felt that the knowledge was very profound and said enviously: "Fei'er, you know so much. Is this all the knowledge your brother taught you?"

(On the first update, the power outage was completed today. Sorry, remember to bookmark it.)
Chapter completed!