"Yo, little Xuanzi, listening to you, do you want to find me a sister?"

When Su Xuan heard this, he said, "That's natural, man! It's normal to have three wives and four concubines...... Especially for a man as good as me, naturally he has a group of wives and concubines, and a house full of children and grandchildren!

After Su Xuan finished speaking, he felt a strong force in his chest, pushing him away.

At this time, Liu Ruyue said: "Go away, don't hug me!"

Su Xuan looked at Liu Ruyue's eyes and said, "Angry?" After speaking, he walked towards Liu Ruyue again, "As for it, haven't I even married you yet?"

"Then what are you waiting for?" Liu Ruyue said angrily.

Hearing this, Su Xuan's face immediately collapsed, and he said, "I don't think it's appropriate to marry you in such a dangerous place as Demon Brake City. ”

"Feet grow on your body, can't you leave Mosha City? These are all excuses!" Liu Ruyue puffed, her pretty face was cold and beautiful.

"Of course I can go, but the question is, what happens after I'm gone......"

"What's going on? Isn't there just one less person? In the Demon Temple City, there are more people walking on two legs! Do you think you are a good doctor? You are not the only doctor in the city. ”

Su Xuan couldn't say a word anymore, and after a long time, he lowered his head and said in a deep voice: "You are right, but I just don't have to worry about the Demon Brake City, unless I can find a more powerful weapon, I can leave." ”

Looking at Su Xuan who bowed her head, Liu Ruyue was also very uncomfortable, but she was also shocked by Su Xuan's spirit, which may be why he is respected. Not because he's handsome, but because he always puts himself in the shoes of Mosha City. So, her heart softened and said, "Then do you have eyebrows?"

"Yesterday, when I killed the black-robed man with *, I had eyebrows. Come and take a look!" After Su Xuan finished speaking, he took out a drawing on the stone table and explained: "Yesterday, when * exploded, a huge wave of qi was generated and my body was overturned. The motivation I was looking for was finally found. ”

Su Xuan became extremely serious, picked up the drawing in his hand, and saw that what was drawn on it was the design of the crossbow, "Look, the design of this crossbow." Crossbow arrows rely on the flexibility and elasticity of the marble, coupled with a specific bowstring, and the human force causes the marble to undergo elastic deformation. At the moment of letting go, the elastic force is converted into propulsion, so the bolt can be fired. This is how the bow and arrow work. ”

"And then?" Liu Ruyue listened quietly, what Su Xuan said, she had read in the book.

"The stronger the man who wields the bow and arrow, the more powerful the arrow will be. But manpower is limited after all, and the limitations of the materials used to make the weapon itself greatly reduce the power of the arrows. So, five years ago, I thought it was looking for a new impetus!" Su Xuan's eyes lit up, obviously, he had found such a force.

Liu Ruyue had a realization and said, "Are you trying to take advantage of *?"

Su Xuan snapped his fingers and said excitedly: "Completely correct! It is worthy of being my daughter-in-law, she is smart!"

Liu Ruyue's face was flushed, and before she could refute, Su Xuan said again: "However, the power generated by * is too strong, and ordinary materials can hardly withstand its power, at least not by playing wood." So, I was clever enough to change the material used to make the weapon to steel. And so it became like this!"

After Su Xuan finished speaking, he took out a drawing, and saw that a cylinder cast of stainless steel was drawn on it, half a meter long and three centimeters in diameter. The reason why it is so clear is because Su Xuan has already labeled the data.

"You see, it's a cylinder with one end closed and one side open. First, put * into the bottom of the cylinder, then put an arrow made of stainless steel into it, then ignite the * and use the thrust generated to shoot the arrow out. What do you think?"

Liu Ruyue looked at the drawings and said, "Then you succeeded?"

Su Xuan was once again deflated and said: "This thing is ten times more powerful than a traditional bow and arrow, but it is too cumbersome, a cylinder, let alone ten kilograms, plus a special steel arrow...... Alas, I'm afraid that the blood corpse was not killed, and I was tired to death first!So I kept thinking about how to lose weight on this thing, and two hours have passed, and I am still not satisfied with the design......"

After Su Xuan finished speaking, he looked at the drawings again and pondered. At this time, Liu Ruyue picked up those scrapped drawings, flipped through them, then nodded, and said, "Yes, it is indeed not easy to shoot such a heavy steel arrow...... This thing is too heavy and inconvenient to carry, but it is not as good as a crossbow. ”

On the side, Su Xuan, who was racking his brains, suddenly had a flash of inspiration and said, "Repeat what you just said." ”

"I mean, it's too heavy to carry, instead—"

"It's not this sentence, it's the previous sentence!"

Liu Ruyue was helpless and said: "I said that it is not easy to shoot such a heavy steel arrow...... What nerves are you experiencing?"

At this time, Su Xuan raised his head, his face was full of confidence, and said, "That's right, it's not easy to shoot such a heavy arrow." After speaking, he picked up the paper and wrote straight, and after about ten minutes, Su Xuancai's hands trembled, picked up the drawings in his hand, and shouted: "I found it...... I found it!"

Su Xuan's shout surprised Liu Ruyue, and grabbed the drawing in Su Xuan's hand, only to see that a miniature version of the cylinder was drawn on it, only twenty centimeters, and even the steel arrow with a total length of nearly fifty centimeters was replaced with a round iron bead.

It's wonderful!

I haven't seen such a design! How did he come up with the idea of replacing the arrow with a bead? This not only reduces its length, but also reduces its weight even more. At the same time, it is amazing that the length of the cylinder can also be shortened because of the change in length.

"How did you come up with that? Su Xuan. Liu Ruyue was also surprised.

Su Xuan seemed to have collapsed at this time, sat on the stone bench, picked up the steamed buns and began to eat. After waiting for the two steamed buns to be in his stomach, Su Xuan took a long breath and said, "The traditional craftsmanship and the knowledge I have mastered limit your imagination. The key to breaking through this train of thought is to surpass yourself. For thousands of years, humans have used arrows as weapons, and when they use bows and arrows, they only shoot arrows. So until just now, I was thinking about how to shoot the arrow, so I overlooked an important question......"

"What's the problem?"

Su Xuan showed a wise look, looked at Liu Ruyue, and said, "Why do I have to see the arrow shooted?"

"What the hell is this? I don't understand! Liu Ruyue felt that her brain couldn't turn, what was the problem. If you don't shoot arrows, how can you kill the enemy?

Su Xuan said, "I guess you must be thinking about it at this time. How can you kill someone without shooting an arrow...... Actually, thinking about this question clearly, you can also come up with this design. I would like to ask, who said that if you don't shoot an arrow, you can't kill someone?"

Who says you can't kill people if you don't shoot arrows? Simple, but philosophical. At this time, Liu Ruyue was confused......

"It's like if you take a spear and fight a kendo master to the death. At the critical moment, the head of your spear is picked off by the master of swordsmanship, so you conclude that you will definitely lose. Because in your mind, a gun without a head can't stab a person. ”

Hearing this, Liu Ruyue nodded thoughtfully, thinking, yes, the master thinks so, and the master's master also thinks so.

"Who said you can't stab someone without a gun?" asked Su Xuan.

Who said you can't stab someone without a gun? Liu Ruyue thought.

"Who said you can't kill someone without shooting an arrow?" asked Su Xuan.

Who said you can't kill someone without shooting an arrow?" Liu Ruyue thought.

"I immediately understood that it was not necessary to shoot an arrow. In fact, I should have thought of it a long time ago, and it was recorded in "Magic Temple City Chronicles" that the knights in ancient times used darts, silver needles, marbles and other hidden weapons, but I was in the game and couldn't extricate myself. Su Xuan was a little annoyed, this may be the fun of research.

Before you find the answer, the question can make people scratch your ears and cheeks, and after finding the answer, you secretly hate why you didn't think of it earlier.

At this time, Liu Ruyue is also in good spirits, although this thing has not yet been manufactured, but just by virtue of the fact that it can blow up the "black-robed man", its power should not disappoint. "By the way, what's its name?"

Liu Ruyue pointed to the cylinder on the drawing and asked.

Hearing this, Su Xuan fell into deep thought, since it was a combination of a cylindrical cylinder and a *, "How about calling it a fire cylinder?"

Liu Ruyue frowned and repeated: "Fire Pipe? This name is too ugly! No, change it!"

Su Xuan also repeated it a few times, and also frowned, hiss! It's really hard to hear...... He scratched the back of his head with his hand, and just as he was racking his brains, a voice suddenly sounded in his head: "Why don't you call it a musket......?"

The ghost sent the gods, Su Xuan also repeated, and said: "It's better to call it a musket...... he can say with great certainty that at that moment, the brain really heard such a voice, not ethereal, but someone directly talking to his brain through the air. This kind of thing is often unexplainable.

It's a grown-up male voice, low and sexy, mesmerizing. If there really is such a person in the world, then he must be a god or a legendary saint.

When Liu Ruyue heard the name "musket", her eyes suddenly lit up, good name!" "This name is good, it's a musket." ”

Su Xuan, who had solved the problem, was naturally in a good mood! He couldn't wait, he was going to take the drawings and go to the Gongluo's workshop located in the east of Mosha City.

The two of them hurriedly walked out of the valley, but they didn't expect to meet the guard of the Su family halfway, who seemed to be named Du Ning.