In the morning, before the bird's cry sounded, Liu Yao sat at the large conference table in the study. The www.biquge.info is a table made of a large mahogany cut in half, which retains the natural shape of the trunk, almost two and a half meters wide and nearly ten meters long. It was a very luxurious table in the time and space in which it came, and it seemed very ordinary in the plane in front of me. Mei Xianzhuo didn't look down on this table, and kept saying that this was to treat the whole pig as a dish, and repeatedly suggested that the edge of the wooden board should be sawed flat, and every time he sat next to him, he couldn't help but touch the natural and complete edge of the line.

On the conference table were a gun and tools to disassemble it, a few hair-drawn fuses, a few bullets, a wooden board to use as a cutting board, knives and scissors, pen and paper, and a little further away a toolbox with more tools and ingredients. Liu Yao plans to work with his daughter to study the transformation of this weapon.

Yao Ying brought breakfast next to these dangerous goods and asked, "You said that you made such a big mahogany table, did you contribute to the bad atmosphere?" In the world we come from, aren't the Chinese all over the world cutting down big trees and eating shark fins to make the people of the earth complain? ”

Liu Yao stopped the sweet potato that was about to be delivered to his mouth, reacted, and asked, "I definitely didn't expect you to talk about this table." Why don't you talk about weapons? "I don't know weapons." Yao Ying replied indifferently, turned around and walked away.

"There's nothing wrong with the table itself, as long as the resources can support it. There should be enough big trees now, and the reinforced concrete buildings we advocate can save a lot of wood. Liu Yao defended his wife's back, and when he turned around, he saw that the children who came to help from the orphan class were covering their mouths and laughing. The children all arrived early, arrived at the door at dawn, and began to clean and light a fire so that Yao Ying could prepare breakfast. They come here every day to help, and they can get a few dollars of silver, and a month's income is enough to buy some clothes and so on. These children have provided great help and gained insight, part of which is that "Mr. Liu is afraid of his wife", which has spread in Meijia Village and Freedom Mountain.

"What are you laughing at, go and call Teacher Liu to come over." Liu Yao deliberately straightened his face and ordered. It is still necessary to impose basic etiquette on these children, after all, they are equivalent to working in the official residence of Liberty Mountain, both to learn etiquette and to avoid the arrogance of power.

After a long while, Liu Mancai came with a sleepy face, although he had already freshened up, he still looked out of state, sat down with a huge voice, and ate his father's food. The child in the orphanage class couldn't hide his surprise, he had obviously never seen such a sturdy woman. Liu Yao looked at his daughter's sturdy body with sufficient nutrition in modern society, this is an old soldier who has not suffered a loss against the Li people. Liu Man noticed that his father was looking at him, thinking that he was dissatisfied with eating his father's breakfast, and said, "You will eat me later." We ate well early and started working early. ”

Liu Yao smiled, touched her daughter's head, and said, "I'm almost done." I'll tell you about the principle of modern bullets while you eat. Liu Man's mouth was full of food, and he muttered: "I'll tell you, you see if my understanding is right." As he spoke, he took a pen and paper and drew it: "There is a very sensitive pile of gunpowder at the bottom of the cartridge case, called gunpowder. The firing pin is an iron rod that moves forward, and its tip hits the bottom of the cartridge case, generating heat that can trigger this sensitive gunpowder. It was in contact with gunpowder, so it triggered gunpowder. After drawing, he looked at the pencil in his hand and said with satisfaction, "The pencil I made is really good." ”

"That's how it works. What we lack now is gunpowder. However, to make gunpowder, it is necessary to have nitric acid and sulfuric acid, which cannot be done at present. Liu Yao took a hair fuse: "So I'm wondering if to use the hair fuse to fire our bullets." So that it doesn't rain. ”

"But now you still have to have a hole in the design, and it will still make the gun swing." Xiao Man swept all the food clean, and the spirit came.

"With Zhang Heng's idea, the opening can be in two directions. That's all it takes to use a support bar. It's probably best if the hole is pointing up, but if it's pointing down, you have to hold down the gun when firing it. ”

"Yes, yes, but there is a lot of movement and an extra pole. Didn't you say that the less action, the more reliable? And it is also a gas leak, reducing the efficiency of gunpowder. Liu Man refused to lower his requirements. Taking a hair fuse, she said uncertainly, "I think it can be done this way, but I don't know how it works." ”

Liu Yao took a knife, moistened it in a water cup, and used it to cut a hair-pulling fuse, while explaining: "There is a curved wire in this one, which makes a lot of burrs, about 5 centimeters in length. The wire passes through a small hole in the middle of a small iron sheet, and when it is pulled, the burr and the hole rub together, which generates heat and ignites gunpowder. This fuse is mainly used to trigger a gunpowder bag to blow up the city wall or something, also for convenience, but also waterproof. ”

"Then this fuse must be fixed with the gunpowder bag, otherwise the whole fuse will be pulled out as soon as it is pulled." Xiao Man simulated pulling it out, and couldn't help laughing. The children in the orphanage class also laughed. Liu Yao greeted him with a smile: "Child, come and sit down and watch this thing with us." What's your name? ”

"Mr. Hui, my name is Yang Daosong." The child replied generously and sat down at the table, his eyes shining at the table.

"Dao Song, tell me, why did I get the knife wet?" Liu Yao began to instill safety awareness.

"In order not to ignite gunpowder. I realized that this wire could be pulled like this, and it could cause gunpowder. It is also possible that the knife will go down. Dawson replied. Liu Yao noticed with satisfaction that this kid's understanding was really good.

Liu Man took the cut fuse and looked at it carefully. The main structure is an iron wire and an iron sheet. The iron sheet is made into a bowl shape and fixed at the outermost end of the fuse. The fuse is a slender roll of paper rolled up with glue-soaked paper with a nice closure at the end to prevent the bowl of iron from being pulled out. For insurance, this piece of iron is also fixed to the outer wall of the fuse against the edge of the bowl. Liu Yao carefully explained these details, and also explained that the ignition point is at the end, so the length of the fuse can be cut at will, and the delay time of the fuse can be controlled.

"Your plan is to have the cable on the side of the bullet, but the diameter of the bullet is limited and it can't fit 5 centimeters of wire." Liu Man voiced his doubts.

"This wire can be walked vertically. There's a smooth groove where it's pulled, so it's just a matter of turning. Liu Yao pondered and said, but at the same time shook his head: "But this method, there are too many messes in the bullet casing, which will reduce the volume of gunpowder, and will also leave residue in the chamber, not to mention that it will also reduce the life of the chamber." ”

Two children and an adult pondered in front of a pile of firearms. Liu Yao also hopes that more people will participate in the discussion, but there are too few people who understand modern firearms in this time and space, and the ones who can really discuss effectively are probably himself and his daughter - the two people who watched American firearms shows together.

"Sir, can you tell me more about the firing pin?" Zhang Daosong learned to cut a bullet longitudinally with a knife dipped in water, and asked Liu Yao a question. Liu Yao dug a small pit at the bottom of the bullet charge, filled it with a grain of rice, pointed to this grain of rice and said: "There is a kind of thing, called Lei Gong, which will explode if it hits it a little." ”

Zhang Daosong asked suspiciously: "Lei Gong? Liu Yao smiled, wrote the word mercury, and said, "It's mercury." Take some acid and put some mercury together, and you can get this kind of thing. It is very easy to explode" and took a pencil to simulate the movement of the firing pin: "The firing pin is an iron rod, the front is pointed, and it is quickly pushed to this position by elastic movement, and this piece of iron is generally copper, and the copper is relatively soft, and it will not break, and at the same time it generates a lot of heat." and it gave rise to other gunpowders."

Zhang Daosong nodded, staring at the cross-section of the bullet and pondering. Liu Man took out a pencil and drew on the paper what his father called "bent" wire. During this time, she participated in making pencils, hardcover books and other stationery, also worked as a tailor with her mother, and often went to the workshop to see, so she also knew more about the mechanical structure, and a structural drawing was clear and clear. "This structure should be able to be changed," she said, as she drew it. "The burred wire was bent longitudinally in the gunpowder and passed through a small hole in the middle of the bottom of the case to the outside of the case." Don't pull sideways, still in the middle, pull from behind. This pulling action can be done with a trigger, didn't you say that the horns have a lot of elasticity? It can be pulled with greater force than a person. In this way, the wire does not need to be turned out, and it is much more reliable. And the rear-facing hole shouldn't affect the shooting accuracy, right? ”

Liu Yao looked at his daughter in shock, such an improvement will minimize the impact on the accuracy of this firearm, and the system is much more stable and reliable. Zhang Daosong continued in a trance: "And this small hole can be sealed inside the body of the gun, and the fireworks will not come out." Qian Er was reluctant to shoot, and the fireworks always smoked his face. ”

Liu Yao thought to himself, you think about your own affairs, and you can still keep up with the discussion next to you, you are really a person with enough brains, so he smiled and said, "That's right, so Qian Er is willing to shoot." Our musketeers were willing to shoot. ”

Zhang Daosong didn't answer, staring at Liu Man's design without saying a word, his fingers were empty, sinking deeper into his thoughts. The room was quiet for a while, and I faintly heard the shout of "sir" outside the door. Liu Yao saw that Zhang Daosong was immersed in his own thoughts, so he asked Liu Man to go to the door to see who was coming.

Liu Man just went out, and he heard a shout of "sir" and "sir" coming over, and before the sound fell, Qian Er and Zhang Heng rushed in, holding a crumpled piece of paper in their hands. Liu Yao hurriedly stretched out his hand to silence them, pointed at Zhang Daosong, who was completely lost in thought, and beckoned the two to sit down at the other end of the conference table.

Qian Er wiped his sweat, commented on the paper in his hand, and introduced softly but excitedly: "Sir, didn't you say that you used the fuse of pulling hair?" We came up with a way to pull back. This cable is wound around the back of the shell and attached to the trigger, which is pulled back with elastic force......"

Liu Yao stopped Qian Er with a smile, and took out the paper behind him to show Qian Er: "Is this the case?" As he spoke, he picked up the paper on the table, and it was indeed two designs that were very similar. Qian Er and Zhang Heng looked at each other and asked strangely, "Is this what Mr. came up with?" Liu Yao happily pointed to his daughter and said, "This bullet is called Xiaomandan." It was designed by your little teacher Liu. Zhang Heng was amazed, took Liu Man's drawings and looked at them over and over, and said to Qian Er: "This is really the same as our thoughts." Teacher Xiao Liu can come up with such a good idea at a young age, it is really a tiger. ”

"Such a good idea? How can you boast about your own good ideas? Qian Er said with a smile. It's good, even Teacher Liu thinks it's good. I don't believe there's a better way to do it. ”

"I have a way here, I don't know if it's okay?" Zhang Daosong said softly at the end of the table, still brushing and painting in his hand.

Liu Man reacted quickly, she probably didn't believe that someone else could devise a better way, so she walked over and picked up the paper and walked towards the end of the conference table while looking at it. Halfway through, he suddenly stopped, sat down, and then looked at the paper without saying a word with his head in his hand. Liu Yao hurriedly walked over, thinking to himself: This conference table seems to be too big.

It was not the first time that Zhang Daosong had served in Liu's house, so he knew what the blackboard next to the conference table was for, so he walked over a few steps, picked up the chalk and said while drawing: "This wire still has to be turned." The wire is made into a ring at the bottom of the cartridge case, and the firing pin comes over and fits into this ring, driving the ring forward. It is estimated that there should be room for this ring in front, and the gunpowder should not be too full. ”

After Zhang Daosong finished speaking, he looked at the eyes of several people, and saw that everyone was very concerned, so he continued: "When the ring went forward, he pulled the wire coiled in the gunpowder backwards, and the wire went around a small hole at the bottom, turned and went forward. This small hole is used to generate heat and ignite gunpowder. ”

Liu Yao looked at this new design and was shocked again. Zhang Daosong had never touched anything like bullet gunpowder, but he imagined a bullet with no exposed parts at all, and he didn't have to worry about whether the cable was on the trigger. This is currently the closest design to the shape of a modern bullet.

Seeing that everyone didn't speak, Zhang Daosong hesitated and said: "This method requires a lot of gunpowder, and the wire is completely in the chamber of the gun." I look at your design, the wire will be pumped out. The gentleman said that the wire is not good in the chamber of the gun. ”

"But you've designed it so that the reloading action is very simple, just put it in, and you don't have to worry about the cable being put on the trigger. This is especially critical in the dark. Liu Yao said with certainty: "I think this plan will be much easier." ”

Zhang Heng also touched his forehead and said, "I'm convinced, and there is really a better design." Qian Er ignored him and said to Liu Yao: "Sir, I'll make five guns with these two bullets, and shoot hundreds of rounds to see which one is better." ”

"I'm afraid a few hundred rounds won't be enough. You want two or three guns, and each of them will shoot more than 500 rounds. Every fifty rounds, they had to be disassembled to see how the parts were deformed, especially in the chamber. By the way, the design of this bullet, whoever has a good plan will be rewarded with three hundred taels of silver. The plan that pulled won, and the three people divided, and the plan that was pushed won, and Dao Song took it alone. ”

"How much does it cost?" Zhang Heng sighed. Liu Yao looked at him and said, "Fighting a war has always been very expensive. But this money is not used to fight, and once defeated, the losses can be more than ten times, and we will die a lot. This money is used to fight wars, and if they are won, many people will be killed. ”

Zhang Heng lowered his head to clean up the drawings and didn't speak again.