In the yard.

"Yes, this is the Quyuan plough I expected!"

After looking around the freshly baked Quyuan plough for a while, and comparing it with the drawings, Cao Bin finally nodded, with a smile on his face.

For most of the day, I was very depressed by the failure of the black powder ratio.

Now, I finally heard good news.

"Yes, I'm too anxious, I can't eat hot tofu in a hurry, let alone black powder that is enough to change history."

In an instant, Cao Bin had a realization in his heart, and the depression in his heart disappeared.

"Very good, Foreman Zhang, it only took you one day to build the Quyuan plow, and you have made a great contribution."

Thinking of this, Cao Bin temporarily put aside the matter of black powder, looked at Old Man Zhang, and praised: "I reward you with 5,000 yuan, I hope you will continue to work hard." ”

"Xie Dongjia's gift, the little old man will definitely be smeared with the liver and brain of the Dongjia, and he will not hesitate to do so."

When Old Man Zhang heard this, he was overjoyed, and immediately knelt on the ground to thank him and said loudly.

5,000 yuan, which is worth his salary for five years of hard work.

The proprietor is too generous.

Following such a generous owner is definitely the most correct choice in this life.

"Well, you go to the treasury and pay 5,000 yuan, just say I mean."

Cao Bin waved his hand and said happily: "I'll take Qu Yuan Plough to find the eldest father, you can go first." ”

It's just a little money, and he doesn't care about it at all.

"Little old man retires."

Old man Zhang arched his hand and retreated, ready to receive the reward.

"By the way, in two days, my eldest father will send someone to take over the workshop."

Suddenly, Cao Bin stopped Old Man Zhang and ordered: "When the time comes, you will try your best to cooperate and teach them both papermaking and movable type printing." ”

I almost forgot to tell Old Man Zhang about this matter, but fortunately, I remembered it now.

"Ah, hand over these two secret arts, then you..."

When Old Man Zhang heard this, he was instantly shocked.

This is a secret technique that can be passed down to the family, how can it be easily revealed?

"You don't need to ask more about the specifics, just do what I say."

Cao Bin waved his hand without explanation.

In order to brush up Lao Cao's favorability, he made a lot of money.

It's just two secret arts, and it's nothing.

"Whoa."

Old man Zhang had no choice but to close his mouth and bow down to receive the order.

Subsequently, Cao Bin no longer hesitated, took Qu Yuan and ploughed out of the yard, and went straight to the Prime Minister's Mansion.

This time, no one stopped him at the Prime Minister's Mansion, maybe Lao Cao had already ordered him to go down.

Under the awe-inspiring gaze of the guards, Cao Bin carried the Quyuan plough and stepped into the Prime Minister's Mansion.

"My grandson has seen my father!"

After seeing Cao Cao, Cao Bin put the Quyuan plough on his body on the ground and bowed down to salute him.

"Father, look, what is this?"

Then, he pointed to the Quyuan plough on the side and asked Lao Cao.

By this time, it was getting dark.

Cao Cao had already finished handling government affairs and was about to have dinner at this time.

Then, I saw Cao Bin walking in, still carrying a thing on his shoulder.

"Oh? What are you tossing again.... Well? This is... Quyuan plow? ”

The sky was a little dark, Cao Cao didn't see it clearly at first, but when he got closer to see it, he immediately changed his words.

He crouched down and stroked the plough with his own hands, and found that it was exactly the same as the drawing.

"Yes, my grandson was fortunate to live up to his life and ordered the craftsman to build this plow."

Cao Bin also squatted down and said, "As soon as this plow was born, my grandson couldn't wait to carry it to my father." ”

He has always been very positive and obligated to brush Lao Cao's favorability.

"Okay, well, Bin'er's intentions, my father knows."

Cao Cao was very happy, knowing his grandson's intentions, and thinking that he could help him as soon as possible.

"In this way, this divine plough will be placed here by the eldest father first, and the eldest father is going to gather all the ministers in two days to personally go down to the field to test the efficiency of this plow!"

patted Cao Bin on the shoulder, Cao Cao asked, "By the way, why is your face black, what are you doing?" ”

It was only then that he found that Cao Bin's face still had traces of failure to blend black powder.

"In the morning, after listening to my father's talk about the size of a gourd and a weapon that would explode with a 'bang' when ignited, my grandson went back and began to try to make it."

Cao Bin scratched his head and replied with some embarrassment.

"Oh, how's it going? Can you have eyebrows? ”

Sure enough, when Lao Cao heard this, he instantly became interested.

"My grandson has heard that the Taoist real person is proficient in the art of alchemy, but maybe the number of medicinal materials placed in the tripod is wrong, and there will be an occasional explosion furnace!"

Cao Bin pondered for a moment and said to him: "Grandson's inspiration, isn't this equivalent to the weapon that the eldest father said." ”

"So, my grandson read through the books, and finally found some materials for the alchemy of the Taoist real people, and tried to make this weapon himself."

"However, it's a pity that my grandson doesn't know how to use the magic of the family, so he can't tell what kind of material can cause an explosion, so he has to keep trying the proportional formula of the material."

"After most of the day's attempts, I have basically figured out a rough formula, but I have never been able to succeed."

"Don't worry, my grandson will try a few more times, and one day, I will definitely be able to develop the weapon that my father said in his dream!"

In order to find a reliable source for the black powder formula, Cao Bin thought about it for a long time, and finally pushed it to Taoism.

Gunpowder is one of the four great inventions of ancient China, which originated in the late Tang Dynasty, and was indeed studied by Taoist priests, and was gradually widely used.

In this era, gunpowder has not yet been born, but it is better for Cao Bin to let it come out in advance.

"Well, Father is not in a hurry, you take your time, don't hurt yourself."

Cao Cao was not confused about the matter of black powder, and said as if he did not understand.

But he muttered in his heart, Taoist priests actually have this kind of ability, can develop such a powerful weapon?

"Hehe, there was indeed an explosion this afternoon, which almost blew the entire yard away."

When Cao Bin heard this, he smiled a little embarrassedly, pointed to his face and said, "No, my grandson was also blown up." ”

These traces were deliberately left by him, in order to let Lao Cao know that he worked very hard, otherwise he would have bathed and changed his clothes and came to see Cao Cao again.

"Ha, are you alright? Be careful! ”

Lao Cao was taken aback, thinking of the scene he saw in the simulator, there was a 'boom', and Fang Yuanzhang Xu did not leave a piece of armor.

If the good grandson was killed by himself for developing this kind of weapon, then he would have suffered a lot of losses.

"Don't worry, my grandson is fine!"

Feeling Lao Cao's simple love, Cao Bin's heart was warm, and he shook his head and replied.

"It's okay, by the way, you haven't eaten yet, have you? Let's go and drink with my father! ”

Cao Cao looked up and down and found that Cao Bin was indeed fine, so he was relieved.

couldn't help but say, pull him to eat together.