Qin Baichuan's right hand felt painful, but when he looked down, the tiger's mouth had cracked, and his entire right arm had even lost consciousness, he waved his arm vigorously to confirm that there was nothing serious, and then he smiled reluctantly and said, "Old man, with all due respect, things are good things, but they still need to be improved." ”

"Huh? You little doll doesn't have a small tone! Old Man Chu was a little displeased, and Chu Jia had already snorted coldly: "This torch was created by our five brothers with great effort, looking at the world, even the group of wastes in the Ministry of Industry is difficult to build, and you actually say that it needs to be improved?" ”

Chu Jia's voice was like a bell, which shocked Qin Baichuan's eardrums a little numb, and from his words, Qin Baichuan basically judged that this A, B, C, and Ding should have been the right-hand man under Old Man Chu before.

"Old man Chujia is angry for the time being, I don't mean to belittle the torch, in fact, to be able to make this kind of thing, the means of several people can even be said to be earth-shattering, crying ghosts and gods, and they will definitely go down in history in the future." Qin Baichuan's words came from the bottom of his heart, if someone in the future would learn this paragraph, Old Man Chu and others would definitely be regarded as the originators of firearms.

"You kid, are you only flamboyant?" Chu Jia and others have been incognito for so many years, although they don't care about their fame, but if they can go down in history and be remembered by future generations, it will also be a great honor for them. Hearing Qin Baichuan's sincere words, Chu Jia's attitude also improved: "Then you can tell me, what else needs to be improved?" ”

"Wait!" Qin Baichuan raised his right hand and was about to speak, Chu Jia said again: "I can make it clear to you in advance, if what you say makes sense, we old bones will listen, and you will be left to take the things here; If what you're saying doesn't make sense...... Hmph, my brother is willing to hand over the things to you, and I have to ask me if Chu Jiatong agrees! ”

"Old man Chujia, please look at ......" Even if you don't know firearms, you have never eaten pork and have always seen pigs run, Qin Baichuan was confident, and stretched out the cracked tiger's mouth in his right hand and said: "The first problem with the fire barrel is that the recoil is too great...... Well, the impact of the gunpowder explosion is too great, which is a disadvantage. ”

"What's the downside?" Chu Jia said unconvinced: "You are a weak scholar, you don't have that much strength, if you are replaced by a military general on the battlefield, how can it be like this?" It is said that useless is a scholar, and the old man is really right! The old man of Chu Jia thought that Qin Baichuan was a strong word, and there was already contempt in his expression.

"Old man Chujia is right, but Baichuan wants to make such an assumption." Qin Baichuan said patiently: "You see, if a scholar like me can be proficient in using firearms, under the premise that the number is sufficient, Da Song will have one person, and when the time comes, whether it is Da Zhen or Da Yin, even if a few more foreign clans invade at the same time, I Da Song Everyone is a soldier, and they can go into battle to kill the enemy, who will still offend the national prestige of my Heavenly Empire?" ”

Qin Baichuan realized that even if he was alienated by the imperial court, including the old man Chu, he still had strong patriotic feelings for the current dynasty, so why did they study these things? It's not to rebel, it must be to protect the country, so Qin Baichuan used a little language skills when persuading, and made assumptions with the praise of the country's prestige.

"Chu Jia, don't make a noise here, what Little Brother Qin said makes sense." Old Man Chu scolded Chu Jia, and looked at Qin Baichuan with a straight face: "Go on." ”

"Also," Qin Baichuan handed the firearm to Old Man Chu and said, "Qin has only fired one shot, and this firearm is already hot, if the battle is fierce, after ten or twenty shots in a row, I wonder if this firearm will explode?" ”

Old Man Chu nodded, and Chu Jia also frowned, looking at Qin Baichuan in surprise. The second problem he mentioned, in fact, Old Man Chu and them also continued to discuss and argue repeatedly, and in the end they really didn't come up with any solution, so they had to propose to use cold water to water to achieve the purpose of cooling.

"Cold water is one way to do, but the barrel must be filled with gunpowder, and if there is a residual water stain that soaks the gunpowder, it is a question whether the gun can be fired. Even if it could be fired, you see, old man, this firearm is now empty, and from the loading of gunpowder to the launch, even the most skilled gunner is afraid that it will take only thirty breaths to complete. Qin Baichuan grinned and said, "Even if the range of the fire gun is sixty meters, it is more than thirty breaths...... I'm afraid that the fuse of this fiery gun has just been lit, and the enemy's steel knife is already on our necks. ”

"That's not a problem." Old man Chu Jia spoke again: "If you really go to the battlefield, each person can be equipped with three firearms, and then two people are responsible for loading, and the fuse is made shorter, and the three of them take turns to work together to ensure that three breaths can play a round!" ”

"If, according to the old man of Chu Jia, the original three firecrackers can only achieve the function of one, wouldn't it be a waste?" Qin Baichuan shook his head.

"Little Brother Qin," Old Man Chu suddenly spoke, "I know that you never fight uncertain battles, since the old man has decided to hand over the last essence of the Chu family to you, it will be all yours from now on." If you don't have to say anything haha, let's say it clearly! ”

"I deserve this great gift from the old man, Baichuan does have a way to improve, if the old man agrees with that Baichuan, he will be ugly." As he spoke, Qin Baichuan picked up a branch from the ground, removed the branch, and then gestured at Old Man Chu and Chu Jia: "Let's talk about the recoil force first...... Assuming that this is the firearm, if the tail end is made into a semi-arc, so that when the reaction force rushes back, this arc can be somewhat cushioned. This is just Baichuan's inference, and I think it should be right. ”

Qin Baichuan's knowledge of physics is still limited to high school, but from the perspective of modern guns, this semi-arc grip is obviously more in line with the rules of mechanics, as for how to conform to it, he can't tell, and it doesn't matter.

"Second, the problem of overheating in the tail after the fire gun is launched, you see if it can be solved in this way." Qin Baichuan squatted on the ground, picked up a stone and drew the shape of the bullet, and explained: "This is the steel ball that the old man put in the firecracker, and we will name it a bullet now...... The bullet is divided into three parts, the first part is called the warhead, which is the steel ball, the second part is gunpowder, and the third part is left blank, and each connection is solidified and sealed with wax oil. ”

Qin Baichuan explained in plain language as much as possible: "The principle of this gunpowder seems to be to push the bullet out through the explosion of gunpowder, so you see, if I ignite the second half of the bullet, it also has the effect of explosion, unlike before, I can add another layer of steel hoop to this part of the gunpowder, so that two sections of protection are formed, can it directly buffer the damage of the gunpowder body?" ”

Qin Baichuan said the second point, the old man Chu was silent, and Chu Jia also had some admiration, when solving this problem, they had been making a fuss about the fire cylinder, and they didn't expect to start with the steel ball at all. After thinking about it carefully, although Qin Baichuan's idea was on the wrong side, it was not unfeasible.

"I guess not." Old Man Chu thought seriously for a long time, shook his head and said: "Little Brother Qin, you said that the gunpowder is sealed with wax oil, if we put the fuse in the third part you said, when the fuse touches the wax oil, it may ignite the gunpowder to achieve the effect, and it is also possible that the fuze will be extinguished and a dud bomb will be formed." If it's okay in peacetime, wouldn't it be a mistake if the two armies are really facing each other? ”

"This is the third question I want to say, of course, I also make suggestions, whether it can be solved in the end depends on the old man." Qin Baichuan really didn't have the ability to improve the fire gun, so he could only suggest: "Qin knows that there is a thing in this world called 'phosphorus', of course, I don't know what this thing is called in the workshop, in short, its ignition point is extremely low, as long as there is a little friction, it can catch fire." ”

Qin Baichuan pointed to the third part reserved by himself, and said: "You see, putting phosphorus in this third part, using the mechanism inside the old man's hive, even simpler, as long as it can generate enough force to shock the phosphorus in a short period of time, make it burn and ignite, and then ignite the gunpowder, wouldn't it be without a lead?" ”

"Combine the hive with the firebolt?" Old Man Chu was also a little stunned, in his thinking, the hive is a secret weapon, and this torch is a new creature, there is no possibility of combining the two together, but from Qin Baichuan's words, he feels that this seems to be a good way?

"Phosphorus? Is there such a thing in this world? If Qin Baichuan's words are said to others, some people may think that it is fantastical, but Chu Jia happens to be the one who is responsible for refining sulfur and saltpeter among several people, and in Qin Baichuan's words, he is a chemist. Therefore, after hearing Qin Baichuan's suggestion, he began to think about it seriously.

"Of course there is, old man Chujia, have you ever heard of ghost fire?" Qin Baichuan guided.

"Nature." Chu Jia nodded.

"There are many things in the human body that cannot be explained, such as this ghost fire, after the death of a person, the skin and flesh are not there, and the bones begin to weather, and the so-called white phosphorus will be produced in it, which will burn when the wind blows, forming a ghost fire." Qin Baichuan said tentatively.

"Phosphorus, white phosphorus...... "Old man Chu Jia seemed to suddenly realize: "I have seen this thing you said." ”

"Really?" Qin Baichuan was happy, it was definitely unrealistic to develop a modern pistol in Dasong, but if a little trick could be used to make use of white phosphorus, then Old Man Chu's firearm would be greatly improved in flexibility.

"You should know that this gunpowder first came from alchemy, and some ancestors mastered the formula of one sulfur, two nitrates and three charcoal in the process of alchemy, and then developed gunpowder. Therefore, the white phosphorus that the old man has seen is also on the way to alchemy...... There is a longevity palace in Lin'an, have you ever heard of it? Old Man Chu Jia asked.

"Of course." Qin Baichuan grinned, not to mention that he heard that there were people from the Longevity Palace by his side now.

"At that time, Brother Chu had already left the imperial court, and once the emperor was preparing for an alchemy ceremony in the Longevity Palace, the Nine Crane Daoist personally took the stage. At that time, there was an incense case in front of him, which contained some white powder, and he picked up a handful and raised it, and it rolled up the fire. Old man Chujia said: "What you said, but that kind of thing?" ”

"It should be......" Qin Baichuan was not very accurate, even if it was, the purity of the white phosphorus was not high, otherwise it might spontaneously combust if exposed to the air.