Qin Yu, the fire baby who studied black powder, did not forget, and found a security guard to lead the way, and soon came to a cave, which is the base for fire babies to study gunpowder, and it is forbidden for others to approach on weekdays, seeing Qin Yu's arrival, the security guards bowed down and bowed in unison, "Master." ”。

Qin Yu nodded, and at this time, the fire baby who heard the movement ran out of it, her face was dark, and she was obviously still busy just now, "Master, you are here." ”。

Qin Yu smiled and nodded, and then asked, "How is the gunpowder research?" ”。

Hearing Qin Yu's inquiry, Huowa hurriedly bowed down and said, "Master, it's all studied." After finishing speaking, he handed a notebook to Qin Yu, and after Qin Yu took it, he looked at it, and the records on it were very detailed, the effect of various proportions, and the effect of charcoal particle size.

Qin Yu looked at it for a while and then selected the ratio of the incendiary agent for making fireworks and firecrackers, and then pointed to this ratio and told the fire baby the production method of fireworks and firecrackers, as well as the precautions, after listening to the fire baby, he thought for a while, then nodded and said, "Master, I wrote it down." ”。

Qin Yu smiled and nodded, and said, "Very good, you study it first, pay attention to safety, make it, and then test it, and then you will be responsible for teaching people to make this." ”。

"Yes, sir." When Huowa heard this, her face was suddenly happy, and she hurriedly bowed down and responded.

Qin Yu smiled slightly, and then patted Huowa's shoulder, "Do a good job." ”。

"Yes, sir, I will definitely work hard." Huowa said excitedly.

Qin Yu nodded and then walked towards Qingfeng Ju with the stone, Qin Yu was not going to develop explosives packs such as black powder, and the old-fashioned musket, this thing was not very powerful, the accuracy was not enough, and the range was short.

Qin Yu was ready to be in place at one time. Directly make smokeless gunpowder, modern firearms and cannons, easy to carry, powerful, as long as you get out, sweeping the world is not a problem, the current war, the soil explosives pack grenades are enough, at least after this war, the Fanbang alien races around the Tang Dynasty must be honest for a while.

Smokeless gunpowder is a bit cumbersome to make. You need to mix acid, this needs to be made, and glass is also used to make mixed acid, otherwise how to store it, and the production of concentrated sulfuric acid is also very troublesome. Substances such as hydrogen peroxide need to be used, and catalysts are used to make hydrogen peroxide. Again, metal refining is involved. Some also require electricity, so it's not easy to get started.

However, Qin Yu is not worried, the knowledge copied from the mobile phone is not given in vain, and the process is recorded, although it is not complete, but it does not need all the metals to be refined. As long as the required metal is refined, step by step, smokeless gunpowder is not a big problem, but the time may be very long.

Smokeless gunpowder alone is not enough. I also have to make cannons, pistols, machine guns, etc., which involve seamless steel pipes and other production techniques, which require very precision, so the difficulty is really not small, but there is no hurry, take your time, you can't eat a fat man.

Back at Qingfeng Residence, Qin Yu will hand over the bearing spring to the carpenter, and after a brief explanation, the carpenter will understand how to make a suitable carriage, and the rest of Qin Yu will not have to worry about it, just hand it over to the carpenters.

The glass can be made, some tools have been prepared before, and the rest is to build a stove and something like that, after Qin Yu returned to the study and drew the drawings, he immediately sent Goudan to hand over the drawings to another group of Kunlun slaves, who would make these things.

The drawings Kunlun slaves may not be able to understand it, but it doesn't matter, there are also dogs, Qin Yu explained all the places to pay attention to dogdans, and the dogs wrote them down one by one, it is not difficult to do a good job, and these tools themselves are not very difficult.

Busy and busy, it was noon, Qin Yu returned to the house, Cheng Lingyun hadn't gotten up yet, obviously tired enough last night, Qin Yu sighed secretly, and then entered the house, Cheng Lingyun, who heard the movement, opened her eyes, looked at Qin Yu with a blushing face, and shouted, "Husband." ”。

Qin Yu smiled and nodded, and then said, "Madam, do you want to sleep again?" ”。

Cheng Lingyun shook his head, then got up and dressed, Qin Yu watched with a smile, Cheng Lingyun was shy, and quickly turned around.

After Cheng Lingyun got up, brushed her teeth and washed her face, lunch was quickly brought in by the maid, after lunch, Qin Yu had not yet enjoyed the purity, and a maid came to say, "Master, there are three people who have come to make amends with wattles on their backs." ”。

Qin Yu was stunned when he heard this, "Guilty of Jing pleading?" Three people? Qin Yu thought for a while and didn't understand who it was, then Cheng Lingyun suddenly remembered something, and then said, "Husband, could it be the three people who tried to brew wine last time?" ”。

Hearing this, Qin Yu suddenly remembered that Cui Naifeng, Zheng Keshuang, and Wang Yushan were coming, and after being slightly stunned, he immediately smiled and said, "It could really be them." After speaking, he looked at the maid and commanded, "Tell the three of them, master, I don't have time, tell them where they came from and where they go back." ”。

The maid hurriedly bowed down and answered, "Yes, master." After speaking, he left the house and went to convey Qin Yu's order.

"Husband, isn't that right?" Cheng Lingyun looked at Qin Yu with some concern and spoke.

Qin Yu frowned and said, "Madam, what's wrong with this, it's them who are wrong, what can they do if they don't forgive their husbands?" Is it difficult to become a husband, but it depends on what Boling, Cui's family, Xingyang's Zheng family, and Taiyuan's Wang family's face can't be. ”。

"Husband, that's not what the concubine meant." Cheng Lingyun was startled when she heard Qin Yu's words with a little anger, and hurriedly said, "Concubine, concubine." ”。

When Qin Yu saw this, he immediately reacted, his tone was a little heavy, and he hurriedly hugged Cheng Lingyun in his arms and said softly, "Madam, the husband didn't mean to blame you, but the husband felt that if there was no instruction from the three families, these three would not dare to do this. ”。

Qin Yu really has no scruples at the moment, and these family families themselves are looked down upon by Li Shimin, dealing with them, Qin Yu doesn't have to worry, if these family families make trouble for Qin Yu, Qin Yu will definitely fight back a hundred times and a thousand times, and it is not impossible to even destroy these families.

Cheng Lingyun listened to Qin Yu's domineering words, and for a while all his worries were put to the back of his mind, and said softly, "Hmm." ”。

Qin Yu is now the Duke of Qin. He is also a champion general, and his reputation is getting higher and higher, plus Qin Yu was not afraid of any family before, and now he is not afraid, and there is nothing to be afraid of.

The maid came to the door, looked at Cui Naifeng, Zheng Keshuang, and Wang Yushan, who were carrying thorns, and coughed, "Ahem." Then he said impatiently, "The master said." Where did you come from, and where did you go back, the lord didn't want to see you. ”。

Cui Naifeng, Zheng Keshuang, and Wang Yushan looked at the maid's expression, listening to the maid's tone, that was a gas, when had the three of them been treated like this. It's still a maid who treats them like this, trembling one by one. But none of the three of them dared to get angry. This is to make amends, and at this time to get angry, it's not a lantern in the toilet to find.

Cui Naifeng took a deep breath, then put on a smile that he thought was kind and looked at the maid. said with a stiff smile, "Please tell me again, Cui is really here to make amends." ”。

At this time, Zheng Keshuang and Wang Yushan also said with a smile on their faces, "Yes." Little lady, please go and spread it again, we are really here to make amends. Although these two people are laughing, how scary this smile is.

The maid was suddenly startled by the strange smiles of Cui Naifeng and the others, the smiles of these three people were not good people at first glance, and they involuntarily took a few steps back, and sat on the ground with a "poof", but their heels tripped over the threshold, and the maid was a little young, and this fear suddenly cried out with a "wow".

When the maid cried, Cui Naifeng and the others were suddenly startled, and hurriedly said, "Don't cry, don't cry." They look worried and anxious, of course, there are a lot of impatience and disgust, no way, they are people from the three major families, so they are kind to a maid, can they not feel uncomfortable.

At this moment, a team of security guards came quickly, surrounded Cui Naifeng and the three of them, and pressed their hands on the handle of the knife, with a tendency to pull out the knife and cut Cui Naifeng, Zheng Keshuang, and Wang Yushan.

Cui Naifeng, Zheng Keshuang, and Wang Yushan all shivered, and they didn't dare to move, but they were frightened by the murderous aura of these security guards, at this time, a security guard looked at the maid and asked, "Erya, did they bully you?" ”。

"No, no, she fell on her own." Cui Naifeng swallowed his saliva, and hurriedly explained, only then did they remember that Qin Yu had killed millions of people in Tuyuhun, and these security guards had followed Qin Yu to the battlefield, and it would not be an exaggeration to say that they were murderous.

Erya wiped her tears a little aggrieved, nodded, and said, "Brother Hu, I fell by myself." ”。

The security guard surnamed Hu is the one who executed Zheng San in the first place, the one who played the little brother, as for Zheng San, he had already gone to see the king of Hades, Qin Yu naturally couldn't keep him, hearing Er Ya say this, Cui Naifeng, Zheng Keshuang, and Wang Yushan all breathed a sigh of relief.

But soon, the faces of these three people turned red sharply, and they got rid of the three braised prawns, but they were angry, the maid was like this, and the guards were like this, the three of them were also from the three major families, and they were ridiculed back and forth by Qin Yu's maid guards, which made them embarrassed, but no matter how angry they were, they didn't dare to show it, the purpose was to ask for Qin Yu's forgiveness, otherwise they would be removed from the family.

It is said that if they went to Tuyuhun before, they might not dare to ask like this, but now it is different, Qin Yu told them after he came back, strictly check and let it go, no matter who it is, it must not endanger the safety of Qingfeng Ju.

These security guards who followed Qin Yu to the battlefield took Qin Yu's words as a holy decree, because Qin Yu was a god-like existence in their hearts, and it was not surprising that they dared to ask like this.

The security guard surnamed Hu nodded, and at this time, Erya remembered Qin Yu's instructions, and hurriedly said, "The master doesn't want to see them, and they still don't leave." The words are full of unceremonious meaning.

When the security guard surnamed Hu heard this, he immediately looked at Cui Naifeng, Zheng Keshuang, and Wang Yushan, and said, "Three, please." ”。

When Cui Naifeng heard this, his face suddenly turned extremely iron, and he pointed at the security guard surnamed Hu and shouted, "Don't you know who Lao Tzu is?" Cheap dog stuff. ”。

Zheng Keshuang also shouted angrily, "Dog fights people, Qin Yunfei taught you how to be hospitable?" ”。

With a chorus of "poof", the security guards pulled out their long knives in unison, and the blades instantly drove to the necks of Cui Naifeng and the others, and Wang Yushan was about to say something, but he was suddenly forced back.

It didn't matter if Cui Naifeng and the three of them insulted them, but they couldn't bring Qin Yu, but he did, which the security guards couldn't tolerate.

It is not without reason that Cui Naifeng, Zheng Keshuang, and Wang Yushan are like this, one is because they were ridiculed repeatedly by the security guards and maids, and the other is because they can't complete the tasks assigned by the family if they leave like this, can they not be in a hurry, this hurry, how to suppress the words in their hearts, opened their mouths and said it.

At this moment, a cold snort came, "Humph! The toad hits Hatche, what a big breath! ”。

When the security guards and the second girl saw the comer, they hurriedly bowed down and shouted, "Master." ”。

Qin Yu nodded, and then looked at Cui Naifeng, Zheng Keshuang, and Wang Yushan who were in a cold sweat, but when the second girl fell to the ground and cried, he was seen by a maid, and then ran to the back house to tell Qin Yu about it, Qin Yu listened to it, and immediately became angry, and then set off to the door, as soon as he arrived at the door, he heard the words of Cui Naifeng and Zheng Keshuang, Qin Yu didn't have a good impression of these three people, and this time he was even more disgusted.

"Qin, Qin Guogong, Cui, Cui doesn't mean that." Cui Naifeng couldn't hear the anger in Qin Yu's words, looking at Qin Yu with a cold face and disdainful eyes, he shuddered coldly, this is the champion general who killed millions of people, and they are still here to make amends, where do they dare to delay, and hurriedly bowed down and said, because it is not good to speak because of nervousness.

"Qin Guogong, Zheng, Zheng doesn't mean that either." Zheng Keshuang looked at Qin Yu in a cold sweat, swallowed his saliva, and stammered.

But Qin Yu had already released the murderous aura, and the atmosphere changed in an instant, compared to Qin Yu, the murderous aura of those security guards was simply too cute, this was the feeling of Cui Naifeng and the others.

Wang Yushan was very wise not to speak, Qin Yu beat him the most fiercely last time, for fear that after opening his mouth, he would immediately attract Qin Yu's repairs.

Qin Yu looked coldly at Cui Naifeng, Zheng Keshuang, and Wang Yushan, grabbed Cui Naifeng's collar, carried it in front of him, and shouted coldly, "They followed Qin to fight Tuyuhun and bloody battlefields, you actually said that they are cheap, you dog, you can't die!" ”。

When the security guards heard this, Qi Qi's heart warmed, his eyes were even firmer, and the hand holding the handle of the knife also tightened, Qin Yu's words were a recognition of them and a maintenance of them, how could they not be moved.

Cui Naifeng endured Qin Yu's overwhelming murderous aura, shivered coldly, and then the sound of a rattle came, after Qin Yu heard this voice, he looked down, his face suddenly darkened, and he directly threw Cui Naifeng out.

But Cui Naifeng didn't withstand Qin Yu's murderous aura, and peed his pants directly, Zheng Keshuang and Wang Yushan were no better than Cui Naifeng, they all sat on the ground and looked at Qin Yu with a frightened face. (To be continued......)