Zheng Tai was in a very good mood. He had already designated Wu Jinei as the future master of mathematics. He asked Niu and Yang to bring the account book to Wu Ji. Wu Ji calculated and cooperated, and they complemented each other.

Huangfu Song was busy sorting out the account books, while Niu and Yang had to do odd jobs, such as moving books and serving tea and water, which fell on the two of them.

It was not until dark that Wu Ji was exhausted and sweated, and then he left.

On this day, Wu Ji was really tired. The next day, he did not go to the chief clerk's room, but rested at home. Guixin County is a small county town with not much accounting, so he could not stand Wu Ji's abacus. It was not a big deal at all.

"This body is so bad! You have to exercise well! If I know qigong, it would be great. You can practice qigong and strengthen your body!" Wu Ji leaned on the chair, drank tea, and looked at the hanging sun, his body was warm, and he felt very sorry.

"Brother Ji, are you okay? How did that marble be made? We have prepared saltpeter, sulfur, and charcoal!" When Wu Jian saw Wu Ji rolling his eyes to pass the time, he came over: "Sister-in-law said, marbles are very powerful! I really want to see it."

"Are you ready? Do you still have to wait? Let's go!" Wu Ji was eagerly looking forward to making the bomb and making a lot of money. When he heard this, his body was no longer sore, and his strength came, and he jumped up as soon as he jumped.

"Brother Ji, are you really okay?" Wu Jian looked at Wu Ji in surprise.

"Do you think I'm in trouble?" Wu Ji was in high spirits.

"Hehe! You can make marbles." Wu Jian was most anxious when he heard Yang Xiuxiu talk about bear hunting, and he wanted to make marbles immediately.

When the two entered the house, they saw Yang Xiuxiu distributing saltpeter, sulfur, and charcoal according to the ratio of 333. She planned to give the strongest gunpowder.

"Xiuxiu, slow down!" Wu Ji knew what she was thinking at a glance and hurriedly stopped.

"Wu Lang! Why are you born? Go and rest quickly." Yang Xiuxiu was both surprised and worried when she saw Wu Ji come in.

"Nothing is wrong!" Wu Ji quickly walked over and said, "This time, I can't use this recipe, I have to use a recipe with less power."

"There is less powerful?" Yang Xiuxiu was puzzled, her eyes full of doubt.

"This is for selling money. You can't use those with too much power, you should use those with less power." Wu Ji said his intention.

"Brother Ji, why don't you use a powerful person, but a low person?" Wu Jian showed his true nature of academic research that he was ashamed to ask, and asked immediately.

Only when the powerful ones are sold will it be popular. Who will want the powerful ones if they are sold? This is common sense. Wu Ji is better, but it is the opposite, which is very confusing.

"You think, if I sell the most powerful ones as soon as I come, then that's not to say that there will be only one in the future? After a long time, who will buy them?" Wu Ji explained to the two: "Sell the less powerful ones first, and the time is almost over, and then replace the more powerful ones. Isn't this how long the transaction can last?"

"This..." This statement is too far beyond the imagination of the two of them.

"You think, if you eat the best food alone, if you eat it as soon as you come, you will feel it tastes boring over time. If you don't give him the best food, but give him the average food. After a while, if you give him some good food, he will feel it tastes delicious and will not get tired of it! This is the same thing when doing business!" Wu Ji used an example.

"Is this possible?" Yang Xiuxiu was shocked by Wu Ji's business, opened her mouth wide, and couldn't speak.

Wu Jian slapped his forehead and shouted: "Brother Ji, you are so cunning! You have plotted against others and asked them to say good things for you! I feel cold on my back, so cunning!"

This is indeed cunning, and Wu Ji has the potential to be a businessman.

"Well! You can't get up early when doing business without profit. Which businessman is not a cunning person? He can't be traitorous!" Wu Ji suffered a big deal, a copy should be like this.

"Wu Lang, how long do you do business?" Yang Xiuxiu's eyes were straightened when she heard it. Although Wu Ji said, although it was a bit twitching, it was definitely an authentic business practice, and she couldn't help but be stunned.

"Didn't I say it? I understand a lot of things in this disease! This is just one of them." Wu Ji had already laid the foundation for lying.

At present, under Wu Ji's guidance, Yang Xiuxiu and Wu Jian began to match gunpowder. This time the saltpeter: sulfur: charcoal is 6:2:2, and it is no longer a three-three-three ratio.

The power of this formula is not as powerful as the three-three-three ratio, but it is not weak. It is much better than the gunpowder of the Song Dynasty, laying the foundation for future upgrades.

Wu Jian was curious and excited, busy, and almost nothing happened to Yang Xiuxiu and Wu Ji. It was not until he was so busy that he was sweating profusely that he finished his work, and he looked excited, and he felt that it was the most fun thing in the world.

After the gunpowder is prepared, the container is needed. Wu Ji then remembered that the night before yesterday, before going to bed, Zhang Daniu grind him and asked what to cast. He told him that he wanted to cast a hollow iron ball the size of a fist. I wonder if he did it?

If done well, you can test the power of the real bomb. Although the bear bomb is powerful, it can kill the bear, but it is not a real bomb. Because it is wrapped in oil paper, its power is not very strong. Furthermore, if it explodes in the mouth, as long as the bear is deceived, it is not a problem to kill the bear.

If it wasn't exploded in the mouth, but on the bear's body, it might not be able to kill the bear.

"Wu Lang, do you want to use this as a marble?" Just as Wu Ji turned his mind, Yang Xiuxiu took out a hollow iron ball the size of a fist and put it in front of Wu Ji.

When Wu Ji looked at it, he found that it was cast iron and polished, which was very smooth. After a closer look, it was even in thickness. Although some places were still a little uneven, it was good to have this level in the Song Dynasty. The form was exactly what Wu Ji had advised Zhang Daniu.

"Master Zhang made it? So fast?" Wu Ji was a little surprised: "It's done well!"

"The night before, Master Zhang did not rest, but rushed to the model overnight, made it and polished it smoothly. It was last night." Yang Xiuxiu complained a little: "I urged him a few times and asked him to rest. Master Zhang said, this is what you told me, and he has to do it before he can rest."

"This..." Wu Ji was speechless. It was his explanation, but it was not that he had to be so urgent and there was no need to rush to work like this.

"Master Zhang said, it must be of great use to put down the blacksmith shop. He will do it first, and it will not be too late to go and rest." Yang Xiuxiu sighed: "I urged him several times, but he didn't want to rest."

"In the future, I can't do this anymore." Wu Ji's face turned solemn.

There is also a lid. Wu Ji tried to use it, which fits very well with cast iron. Zhang Daniu was careful in his work and had good skills. He was right to keep him.

There is one more thing to do now, that is, the fuse. The bullets are detonated by friction between fine porcelain fragments. It is not possible to be a bomb. Another detonation method must be used.

Wu Ji knew a lot about this detonation method, but he adopted the simplest fuse. The reason why he used the fuse instead of automatic detonation was that Wu Ji's potential for profiteering played a role. The advantage of doing this is that there is an additional opportunity to upgrade and an additional opportunity to make money, and Wu Ji will definitely not miss it.

Even if the fuse is used, the power of the bomb is much more powerful than that of the swords and guns of the Song Dynasty, so there is no need to worry about the power.

The fuse was a very simple thing that could not be difficult for Wu Ji.

After making the fuse, Wu Ji put gunpowder into the iron ball, pressed the fuse, and sealed it with a lid. If you want to sell it, it also needs to be treated with moisture and waterproofing. Wu Ji used this for experiments. This is not required, and a bomb was born like this.

"Wu Lang, this can't be called a marble, right?" Yang Xiuxiu looked at the bomb, which was very different from a marble. One was that there was an iron shell, and the other was that there was an extra fuse. If you called a marble again, it would be inappropriate.

"Yes! You have to give another name!" Wu Ji nodded slightly and said, "You must choose a loud and easy-to-remember name. Its sound is like a pili, well, it's called Pili Bomb!"
Chapter completed!