Scholars in the courtyard

Suddenly, Xiao Wei, who was having fun on the side, disappeared from the window in the next second, leaving only the paper pinwheel still spinning.

The next moment, Ran Qiuye walked in with a water glass.

"Still busy."

Ran Qiuye walked over and put down the water glass.

"Um."

Yang Xiaotao reached out and stroked Rub Yi on his shoulder, looking very helpless.

"Didn't you say that you have found an idea?"

"Yes, I found it before, but I still haven't made it yet."

Yang Xiaotao put the information aside and said helplessly.

"It's okay. If you can't do it, just do it slowly."

"I think that being able to do this is already very impressive."

Ran Qiuye said with admiration. As a teacher, he knew the importance of knowledge. Because of this, he knew how important what Yang Xiaotao did was.

"But, I still can't do it."

"Stop thinking about it and change your mind."

Ran Qiuye sat on a chair nearby and talked about the Little Dragon Boat Festival with a smile.

"You don't know, the little guy is very jealous of his two sisters. He would give them something to eat without even noticing. Yesterday, when my mother and I weren't watching, he took a green persimmon and put it on Rongrong's mouth."

"While we were watching, Rongrong was licking it with her tongue."

Ran Qiuye said and Yang Xiaotao smiled. Although this matter was very dangerous, it was still a bit difficult for them to reason with a child less than two years old.

They are all children, some are bigger than this, the Dragon Boat Festival is the big one.

Without these twins, Dragon Boat Festival would still be a little kid.

"Tell me earlier and I'll beat him up."

Ran Qiuye rolled her eyes, "Are you willing?"

"Then why are you reluctant to part with me? I'm not a great-grandfather. I'm so precious."

"Old people love their grandchildren, even if they kiss each other in the next generation."

"Also, you didn't look at Dad. He hugged Duanwu when he was fine. Now Duanwu doesn't even look for his mother. He rebelled just because of this windmill."

Yang Xiaotao smiled, "So when a child is young, he will learn how you teach him. He will accept whatever you give him."

"As we said, children have been taught since childhood. If we change places and everyone speaks English, the children will learn English."

Ran Qiuye nodded, then chuckled and said, "Yes, isn't this the third move of Meng's mother?"

"Mother Meng's three moves? Those were just sorted out by later people. Whether they really happened or not, you haven't seen it."

Ran Qiuye said displeasedly, for a teacher to question her knowledge, she must have some theory.

"How do you know it's fake?"

"I didn't say it was false. I just said that you haven't seen it and I haven't seen it either. It's just what is recorded in the book and everyone agrees."

"That's true, someone passed it down from the Eastern Han Dynasty..."

"Before the Eastern Han Dynasty, there was the Western Han Dynasty, as well as the Spring and Autumn Period and the Warring States Period. Why haven't I seen it written down?"

"Huh, you're just quibbling."

Yang Xiaotao saw that Ran Qiuye was a little serious and did not dare to tease him anymore. He quickly reached out and hugged the person over. The struggling Ran Qiuye could not escape and could only be held in his arms.

"Okay, okay, my husband is wrong. He shouldn't doubt the sages, okay."

Ran Qiuye stretched out his hand to hold down the big hand that wanted to make further progress, but he was still unwilling to say, "You can question, the great revolutionary teacher said, doubt everything. You can question Meng's mother's three moves, and I can also question this, this machine tool knowledge."

"Everyone can doubt it, it's even."

After all, Ran Qiuye couldn't resist Yang Xiaotao's power, and his hand succeeded again.

But when she finished saying this, Yang Xiaotao was obviously stunned.

The strength in her hand even increased suddenly, making her face heat up.

"Honey, are you saying that you doubt your knowledge of this machine tool?"

Ran Qiuye endured the restlessness in her heart. The strength in her body seemed to be drained. She leaned on Yang Xiaotao and could not hear clearly what Yang Xiaotao said.

Yang Xiaotao didn't hear Ran Qiuye's answer and looked down. The blush on his face was particularly charming.

"Don't look."

Only then did Yang Xiaotao realize that the placement of his hands was Ran Qiuye's weakness.

With the corner of his mouth raised, Yang Xiaotao directly picked up Ran Qiuye and walked towards the house.

After one hour.

When the clouds closed and the rain stopped, Yang Xiaotao held his tired and sleeping wife in his right hand, and put his left hand behind his head. Ran Qiuye's words came to mind again.

You can doubt Meng's mother's three moves, and I can also doubt the knowledge of machine tools.

One sentence woke him up.

It is undeniable that the development of science and technology can promote the progress of human society.

However, a sentence said by later generations also left him fresh in his memory.

Science has no national boundaries, but scientists do.

And the books he read were all from abroad.

A few hundred years ago, the country where these books were written was full of robbers.

A robber's book will generously share advanced knowledge?

Reaching out to tighten the beauty in his arms and touching the smooth skin, Yang Xiaotao remembered a joke he saw in his previous life.

It is said that there was a very famous encyclopedia-like book in the Northern Song Dynasty called "Mengxi Bi Tan", which recorded a lot of science and technology, involving various fields, including biology, chemistry, and even some manufacturing methods of equipment.

Among them, the manufacturing method of the Divine Arm Bow of the Northern Song Dynasty is recorded.

Later, after this book was obtained in the peninsula countries in the east, it was regarded as a guide and a treasure.

In the following decades, relying on this book, this peninsula country greatly increased its military strength and created its own 'God's Arm Bow'.

This allowed some domestic careerists to become more ambitious, armed with advanced weapons, and began to frequently provoke small surrounding tribes.

How could these small tribes withstand the attack of the peninsula sticks with advanced equipment? They had no choice but to turn to the sovereign state for help.

Therefore, the suzerain country sent an ancient army and the entire coalition of small countries to fight against it.

Facing the overlord country, Peninsula Bangzi, who was confident and wanted to stand out, put the "God's Arm Bow" he had accumulated so hard on the front line. However, during the battle, he discovered that his own "God's Arm Bow" only had the range and power of the opponent's. half.

There were countless casualties in that battle.

In that battle, he humiliated himself and asked for peace.

Only at the end did their king ask why there was such a big gap between the divine arm bows they made according to the drawings.

The officials of Honglu Temple who received him were full of ridicule.

"How can we give the important weapons of the country to others lightly?"

Hearing this, the king suddenly realized, and then his face was full of shame.

When Yang Xiaotao heard it, he knew it was fabricated, but what was said in it was not necessarily false.

Especially the finishing line, it's very true.

He looked at the roof, which was pitch black, as if he had just arrived in this world.

At that time, he knew a truth.

It depends on everyone to go.

Close your eyes and think of the system panel in your mind.

It is better to rely on the system than to rely on people.

Familiar panel, familiar skill list.

Credits, 19999.

There are still 10,000 credits left before becoming a seventh-level engineer.

I originally wanted to save some money and be directly promoted to a seventh-level engineer.

As he got involved in more and more things, Yang Xiaotao found it difficult to do some things.

And this kind of difficulty is sometimes a kind of ignorance.

If you want to change, upgrading your engineer level is the most direct way.

Therefore, Yang Xiaotao has always kept his credits, unless he needs to exchange them for supplies from the exchange column.

But now, regardless of whether there are problems with the foreign books or whether it is another 'making diagram of the Divine Arm Bow', Yang Xiaotao needs to find his own 'way'.

After carefully looking at the system, there is only one sub-skill that can be improved most at this stage, which is mechanical proficiency.

No matter what, mechanical proficiency is a little closer to machine tools. Like other cooking, fishing and other skills, it is estimated that it has reached the top of level 8 and has nothing to do with machine tools.

Thinking of this, Yang Xiaotao used his credits to improve his mechanical proficiency.

"Ding! Does the host need to spend 3000 credits to upgrade sub-skills and achieve mechanical proficiency to level five?"

Three thousand?

Yang Xiaotao was a little surprised. If he remembered correctly, each level of mechanical proficiency required one thousand credits to upgrade to level four. The inflation rate must be too fast.

Yang Xiaotao was very suspicious. The system saw so many credits on the books and temporarily increased the price.

However, you get what you pay for, and after spending so many credits, you have to get something good.

Moreover, the experience of improving one level of mechanical proficiency can always be helpful to you.

"yes!"

"Ding, congratulations to the host, the mechanical proficiency level has been improved, and the current level is five."

"Ding, congratulations to the host, you have received a car design drawing as a reward."

Yang Xiaotao agreed, and the next second, the familiar feeling appeared again.

The credits on the system suddenly disappeared, and then a torrent rushed into my mind.

In an instant, Yang Xiaotao felt countless experiences filling his mind.

It took a long time before Yang Xiaotao regained consciousness and silently felt the changes brought about by the upgrade.

"The car manufacturing drawings you gave me? They're not from machine tools."

I'm a little disappointed mentally, but it's not without gain. At least I have a more comprehensive understanding of machinery.

Especially for the design of machine tools, he found that he could see the key points more clearly than before.

"If it doesn't work once, then try it again."

Yang Xiaotao was unwilling to get the drawings related to the machine tool, so he decided to strike while the iron was hot and try again.

"Ding! Does the host need to spend 8,000 credits to upgrade sub-skills and reach mechanical proficiency level six?"

The system's prompts contained no emotion, but Yang Xiaotao felt his balls hurt when he heard them.

Of course, it may also be related to being pressed.

But Yang Xiaotao is even more convinced that this is the system raising prices.

"Best, don't play tricks on me."

"yes!"

Yang Xiaotao took a deep breath and agreed decisively.

"Ding, congratulations to the host, the mechanical proficiency level has been improved. The current level is six."

"Ding, congratulations to the host, you have received a copy of the AL-21 engine blueprint as a reward."

Yang Xiaotao quickly checked the reward, but it was the same, and one sentence stood out in his mouth.

"Damn, what a loss."

Then, the consciousness was hit by the data flow, this time it came even more violently.

Then fell asleep.

Ran Qiuye, who was lying in Yang Xiaotao's arms, felt a strange vibration coming from his body, which lasted for a while before he fell asleep peacefully.

The next day, Yang Xiaotao was awakened by crying in his ears. When he opened his eyes, he saw Ran Qiuye holding his third son and coaxing him.

"what time is it?"

"Six-thirty, you can sleep a little longer."

Ran Qiuye changed the diaper for the third child, picked him up to feed him, and said to Yang Xiaotao.

Yang Xiaotao looked at the time and didn't lie down, "I can't sleep anymore."

After saying that, I got up, got dressed, and went out to wash my face and cook.

After boiling the rice porridge and boiling the eggs, Yang Xiaotao remembered that he had upgraded twice in a row last night and hadn't remembered to check the final reward.

"This is? Engine blueprint?"

Look at the two extra drawings in the system space.

The car drawing is over one meter high, but it pales in comparison to the engine drawing next to it.

"This, this is a turbojet engine? For an airplane? I, go!"

The next second, Yang Xiaotao looked at the introduction of the drawing. Obviously, this drawing, or this engine, has not yet been released.

At this moment, Yang Xiaotao felt that it was worth the money. This one alone was more valuable than any semi-automatic machine tool.

This is a mature engine drawing.

"Grandma is weak. It's better to rely on others than to rely on yourself, and it's better to rely on the system than to rely on yourself."

"I have been working so hard for a long time, but I still can't get a semi-automatic. This saves me two levels. Not only does my experience and ability increase, but I also give you such a great gift."

"This system is really a big deal."

Yang Xiaotao said, and the depression in his mind was finally dissipated.

However, Yang Xiaotao soon realized an important problem.

What should he do with this drawing?

Is it possible to let the steel rolling mill make airplanes?

If he said this, Yang Youning would probably explode on the spot.