Seeing Master Sun looking at Fu Donglou with red eyes, Feng Yang and Xuejin were also terrified, but they didn't take half a step back and instead thought of Fu Donglou going forward to separate their master from that dangerous element.The two of Feng Xue were younger than Fu Donglou, and Fu Donglou didn't have the notion that he should die for his master if he didn't serve others, so how could they let them do what they wanted.Between the movements of the master and the servant, Bo Junhe stepped in, put his arm on Fu Donglou's chest and said to Master Sun, "Even if Master Sun can't trust him, he should trust me. Could it be me?" Is it a boring person who deliberately brought someone to humiliate you?"

"Hmph, for the prince's sake, let's hear what you have to say!" Master Sun put his hips on his hips, and turned his head away from Fu Donglou again.

Unexpectedly, Bo Junhe would stand up, which surprised Fu Donglou.Fu Donglou nudged Bai Junhe lightly with his elbow, "I didn't see it, the prestige is quite high at a young age."

nonsense!Bringing you here is for improving weapons and not for fighting.Bo Jun and Fu Yi said that they withdrew their arms and looked at Fu Donglou without saying a word, but the meaning was very clear—come on, everyone is waiting for your discourse.

Fu Donglou twitched his chin and snorted softly, and stopped talking to Bo Junhe, instead he cupped his hands to Master Sun and said, "I don't know if Master Sun has ever thought about what would happen if the blade and blade of a knife had different hardness. "

Taking a knife that had not yet been attached to the handle, Fu Donglou gestured to the place other than the blade: "If in the process of quenching, cover the blade with a layer of soil and leave the blade outside, then proceed like this. Heat it up, and then put it into cold water after reaching the predetermined temperature. At this time, the blade will cool down rapidly, but the blade body will cool down slower than the blade because it is covered with soil, so the strength of the blade will be stronger than the height of the blade. When chopping During the process, the high-strength blade can effectively hit the opponent, while the blade body has reduced strength but maintains good toughness, which can prevent the blade from collapsing, and can absorb shock to prevent the hand of the knife holder from being numb.”

This technique of covering soil and burning the blade is unique to Japanese knives, but samurai katanas originally originated from Tang knives, so it should be no problem to improve them.By the way, why don't we wait until the world is unified and get a navy to strangle Little Japan to death in the cradle?Fu Donglou was talking about business and his mind was distracted, and his ability to focus on two things was amazing.

In addition to being distracted when nothing happens, Fu Donglou also has a problem. Once he says he is addicted or enters a research state, he can't stop, or he won't stay in the laboratory for seven or eight days without showing his face. After the job is done, no one wants him to stop.

When Fu Donglou talked about covering the knife with soil, Master Sun wanted to ask a question, but seeing Fu Donglou's high spirits, he really couldn't get in a word.After finally waiting for him to finish speaking, Master Sun hurriedly asked: "Your statement is not completely unreasonable, it's just that..."

"Of course, any kind of soil can be used to cover the knife. It needs to be mixed with carbon powder, borax, iron powder, and clay in the same proportion." Fu Donglou didn't hear what Master Sun asked. Xuejin asked for his usual carbon strips and specially prepared hard paper and squatted on the ground to draw, "The Mo Dao is long and heavy. It is a good thing for infantry to use as vanguards, but the cost of making the Mo Dao is too high. The need to equip the entire army is too large. It is not necessary to fight the enemy in close quarters to cause maximum damage to the enemy, such as this three-edged bayonet."

Fu Donglou said, picking up the paper in his hand and pointing to the draft of the three-edged bayonet he drew, and continued: "This kind of thing was similar in the Warring States period, and it was called Qi, but it was lost later. The figure I drew During the Warring States period, the Qi of Qi State was also different. This weapon has three blades and blood grooves. The wound caused by stabbing the enemy is not easy to heal. Even if the person is not stabbed to death, the opponent will die from blood loss .Furthermore, because of the blood groove, the blade will not be stuck by the enemy's muscles after piercing into the enemy's body. Introduce air into the enemy's body, as long as the knife penetrates three inches, the opponent will surely die."

"In fact, things like knives and swords don't have to be hard to be the best. The bronze swords of the Yue Kingdom in the Spring and Autumn Period were famous for their flexibility. You can bend the tip of the sword against the hilt and let go of your hand. When it bounced back, the blade was not damaged or deformed at all. It is said that this casting method plated a layer of "chromium" on the sword body. Chromium is extracted from a red lead ore, and some iron ore There is also chromium in it, I only read the records in ancient books, but I have never seen the real thing.”

Fu Donglou felt happy, as soon as he stopped, he saw that everyone in the workshop was looking at him, including Bo Junhe, and Master Sun's eyes were a little... fanatical?

"Having said so much, I actually read it from ancient books. I have never done it myself. It's all on paper." Fu Donglou rubbed the back of his head, but no one responded I was a little embarrassed, "If there is anything wrong, Master Sun, please tell me, let's discuss it together and see how to operate it. Your eyes make me feel guilty..."

Master Sun came back to his senses after being told by Fu Donglou. He quickly withdrew his eyes and sank his heart before saying: "The borax you mentioned is the kind of borax that is used in medicine?"

Fu Donglou's remarks dispelled Master Sun's hostility, but it was unrealistic for these men who had been fighting against the barbarians to accept Fu Donglou immediately, but Master Sun's tone was always calm.

"That's the thing. Borax is used in medicine to sterilize, but it is also used in pottery and weapon making."

"The "Mao Poetry" said 'I have broken my axe, but I lack my Qi. The Duke of Zhou marched east, and the four kingdoms are the same' is what you said." Before Master Sun could continue to ask questions, Bai Junhe suddenly interjected Come in.He pointed at the three-edged bayonet drawn by Fu Donglou, and said in contemplation, "I have never seen this weapon before. If it is called a three-edged bayonet as you said, it would be pretty good, but I don't know how long or short this bayonet should be."

Bo Junhe stretched out his arm and gestured, "It seems that twelve or three inches is enough, but this kind of knife can only be used for stabbing, and has no advantages in chopping. If it can be made into a dagger-sized knife, it should be used for sneak attack and assassination. It's excellent."

This time the person who was surprised became Fu Donglou. Unexpectedly, this aboriginal prince was still an expert in weapons, and would draw inferences from one example. How did he know that there was such a thing as a three-edged dagger.Speaking of small things, when will I be able to tinker with the Swiss Army Knife? Even if I don’t use it for Bo Junhe, it’s good for me to use it to peel apples.

"What the prince said is very true." Master Sun echoed with a smile on his face, "The minerals you mentioned are not hard to find, but no one has ever made any 'chromium' from lead mines. I don't know what to do with this 'chrome'. Huh? After you get 'chrome', how do you cast this thing into the sword?"

"This..." Fu Xueba said that metal smelting or something, I just read the book, "I can try to refine chromium, but as for how to cast chrome-plated swords, Master Sun should be better than a scholar like me."

He didn't directly say that he was not good enough, and he didn't take the lead. Instead, he praised Master Sun a little bit. Fu Donglou couldn't be called unwise to deal with it like this.

"Everyone can't leak half a word about today's matter. If this king hears any rumors, whether it's about Wang Qing or about these weapons, no one in the whole workshop will be left behind."

"Subordinates obey."

"Hey, let me say this is not good. If someone owes you, others will be buried with you? Those who can enter here are all talented people, but they are not from fine backgrounds. How can they help you keep an eye on people..."

Ouch, my young master, stop talking.Feng Yang and Xue Jin kept tugging on Fu Donglou's sleeves, almost pulling his clothes off.Young master, haven't you seen that the prince's face is like the bottom of the pot? Didn't you question the prince's decision in the military camp to die?

Bo Junhe stared at Fu Donglou for a moment, turned and left the workshop.

Although I feel that Bai Junhe's decision is unreasonable, but in the final analysis, he did so to protect military secrets and protect himself.Fu Donglou was not ungrateful, seeing Bo Junhe like this, he could only sigh and follow him out.

"From now on, this team of soldiers will follow you and be responsible for the security of your mansion." As soon as he came out, Bo Junhe sent a team of soldiers to Fu Donglou, and pointed to the leader of the team, "This is Qin Yu, the Guards Battalion The school lieutenant, this team of soldiers is under his control."

"I've seen you, Young Master." Qin Yu gave a military salute.

"Oh, hello, I need you to take care of me in the future." Fu Donglou's thoughts were still on the craftsmen in the foundry workshop, he only hurriedly handed over to Qin Yu, then grabbed Bai Jun and said, "You see, you have sent someone to protect him I’m sorry, I’m not going out of Chengdu, no one can hurt me. These craftsmen are all from your barracks. If you really have the ability to reveal secrets, other craftsmen can’t stand it. Why do you have to sit together? Qin Chaos is death, even sitting is one of them, why don’t you learn something better.”

This time, Bo Junhe didn't even look at him, and walked away directly, "It's time to go back."

"Why are you..."

Qin Yu had never seen anyone who dared to talk back to King Rui, and secretly thought that the future Wang Qing was brave.Thinking that I will be working next to this person for a period of time in the future, I dealt with Donglou and said: "My lord, forgive me for talking too much, the prince is not unreasonable. As you said, these craftsmen are from the military camp. Their family members are also located near the garrison. It can be said that their every move is under the supervision of the Habayashi Army and other craftsmen every day. It is almost impossible to leak the secret without disturbing others. In the Habayashi If a person who is a soldier or an errand in the army is not vigilant to the people around him and doesn't even care about such important things, he would have been eliminated or dealt with by the military law. So the prince has his reason for doing so .”

If it was someone else, Fu Donglou knew that he was wronged and would definitely apologize, but the other party was Bo Junhe, which really made Fu Donglou unable to open his mouth.

"Cut, he doesn't have a long tongue, so he can't explain a word."

As soon as you refuse to accept the prince, explain it. Isn't it because you are afraid of your wife in the eyes of others?Qin Yu murmured in his heart but did not dare to speak out.

Although Rui Wangqing is a man, Fu Donglou will inevitably be compared with the housewife by others, especially in the aspect of a husband being a wife.But no one dares to ask Gu Xian for this, His Highness Wang Taiqing is like a military god!

Feng Xue and the two couldn't help secretly laughing when they saw their young master's mouth was stiff while his face was blushing. One of them didn't hide it well and fell into Fu Donglou's eyes, so they couldn't help being stared at twice.

After some rhetoric today, I finally passed the level of weapon manufacturing first, and it was not in vain that Fu Xueba stayed up all night racking his brains to recall the books he had read before.Fu Donglou became tired as soon as he relaxed, and he didn't bother with the two boys any more, and headed out of the barracks with a new team of guards.

After getting into the carriage, Fu Donglou realized that today's disaster had just begun.

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