Qian Shi stood in the main hall, listening to Li Shimin's instructions, thinking in his heart, whether to report some recent situations in Fangjia Village to Li Shimin, since the last Jinzhou City Jin Bei Driving, Li Shimin will write to Qian Shi from time to time, although the other driver has already been dismissed, as for what, Qian Shi dare not ask.

"Holy Lord, there are some things that I don't know whether to talk about or not." Qian Shi thought about it for a long time, and finally wanted to report something to his top boss, at least the salary he received was paid by Li Shimin.

"Speak, what can't be said, just say." Li Shimin sat on the low couch, stared at the Qian waiter, and shouted loudly.

"Back to the saint, the lowly job has been in Fangjia Village for some years, and the changes in Fangjia Village can be described as changing with each passing day, it is not an exaggeration to say that after the completion of the Fangjia School, the lowly San Lang was also sent to the Fangjia School to study, and the things learned made the lowly position unheard of and unseen." Qian Shi bowed, looked at Li Shimin and said.

"Oh? I know some about the professors in the Fang Family School, but I don't know it in detail, tell me, what is unheard of, unseen? Li Shimin sat up straight, poked his head out and asked Qian Shi.

"Back to the saint, just like you just asked me about the physical education class, this is the method of battle formation training, General Cheng Siping and Captain Wang Yanren came to the door to ask from Mr., Mr. specially told the lowly rank not to spread the word, this matter has been reported to the saint just now, but Mr. will always do some experiments every five or six days in the school, every time the lowly San Lang comes home from school, he always has to tell the lowly job some interesting things, just like the gunpowder matter is even more impressive." Qian Shi knew in his heart that it was best to just mention the matter of gunpowder to the saint, and let the saint ask King Yue about the final matter.

"Gunpowder? What happened to the gunpowder? After Li Shimin heard Qian Shi's report, he was a little puzzled, could this gunpowder be used for any big things? Li Shimin still knew about gunpowder, and in his heart, he only thought that it was just something used by some alchemists.

"Back to the saint, I don't know much about this gunpowder, but I heard that King Yue knows even more, and King Yue has tested it himself, and it is said that its power can destroy a house." Although Qian Shi had never seen it, he had heard a few words from the little babies in Fangjia Village from time to time, and he had also tricked and asked a few little babies, thinking that Fang Jing's gunpowder experiment would definitely have a lot of power.

"Qian Shi, are you serious?" Li Shimin just heard Qian Shi say that the power of gunpowder can destroy a house, so he got up from the low couch in shock, approached Qian Shi, stared and asked.

"Back to the saints, these things are all found out from the mouths of the students in the village, and I don't know how powerful they are, but the students all say so." Qian Shi didn't dare to guarantee the ticket, not to mention that he had never seen this gunpowder experiment, and he had only heard of it.

"Okay, I'll ask Qingque about this, is there anything else?" Li Shimin was anxious, and wanted to hurry up and ask Qingque clearly, if he really wanted such power, he must know how to make it, this is a sharp weapon in the battle array, if this is used externally, the soldiers of the Tang Dynasty will be invincible.

"Back to the saint, there is nothing to do, so I will retire first." Qian Shi is very smart, after getting Li Shimin's approval, he quit the palace and went home, what Li Shimin wanted to do, he didn't know, he just did his part, and said what should be said and what should not be said.

Li Shimin stood in the hall, and after thinking for half an hour, he raised his legs and walked towards the inner garden, secretly wondering in his heart, why didn't Fang Jing want to tell him this kind of battle array weapon directly? Are you still afraid that you will harm him? Several guards followed Li Shimin's footsteps and escorted Li Shimin to the inner garden.

"Green Sparrow, Green Sparrow, come to your father's place, your father has something to ask you." Li Shimin had just entered the inner courtyard and shouted loudly.

"Erlang, what's the matter? You who shout loudly, you are holy now, and you must pay attention to the etiquette. The queen walked out of a side hall in the inner garden, as if she had an expression of blaming Li Shimin.

"Guanyin, don't worry, I have something urgent to ask Qingque, come, Qingque, come to my father." The eagerness in Li Shimin's heart could not be disrupted by a few words, and he beckoned to the green sparrow standing at the door of the side hall.

"Father, you don't know what you're looking for me?" Qingque trotted to Li Shimin's side, looking up at Li Shimin, with inexplicable excitement in his heart, this has not been close to his father for more than a year, and he is very happy at this time.

"Come, let's sit down in the flower gallery." Li Shimin pointed to the flower gallery not far away and said, then raised his legs and walked over, and the queen and Lizhen also followed.

"Qingque, I heard Qian Shi report to me just now, you have learned a lot of knowledge in the Fang Family Academy, can you tell your father about it." After Li Shimin sat on a stone bench, he asked Qingque.

"Yes, father, Mr. Qin and the other three gentlemen mostly teach some simple ones, but Brother Jing teaches mostly complicated, every class is to do some experiments for us to see, and occasionally let us learn to do experiments by ourselves, but we are not allowed to touch large experiments, only some small experiments are allowed to do it." Qingque didn't know what Li Shimin was going to ask, but he thought it must be about Professor Fang Jing, so he directly transitioned to the experiment.

"Oh? So what is a large-scale experiment? What is a small experiment? Li Shimin was even more strange when he heard about it, this experiment is still divided into large and small? It seems that there is a lot of article in it.

"Back to my father, this small experiment is an experiment that can be completed by one person or a few people, or some experiments that can be completed at home, such as air experiments, such as combustion experiments, but large experiments are not possible, they can only be completed in a designated square or a designated place, and they must be completed by something provided by Brother Jing, and we can't complete it ourselves." Qingque told Li Shimin about the experiment.

"And what's the big experiment?" Li Shimin is no longer anxious now, thinking that these so-called large-scale experiments will inevitably have different effects.

"Father, I think you've seen the train too, that little train is a large-scale experiment, and there are some large-scale hot gas experiments, but at present, Brother Jing has not taught large-scale hot gas experiments, but I heard Brother Jing say that we can do this hot gas experiment in the second half of the year, saying that let's experience what kind of hot air balloon can take us to the sky." Although Qingque had only heard Fang Jing say this in class, he had not yet completed this experiment, so he naturally couldn't express it more clearly.

"Hot air balloons? Can you send people into the sky? Is there anything else? Although Li Shimin yearns for flying in the sky in his heart, and has experienced it twice, he naturally knows that its charm is not bad, and he personally hopes to have such a perfect experience.

"Back to my father, there are still a lot, but Brother Jing doesn't allow us to touch them." When Qingque was asked, he looked like a defeated rooster, pulling his head.

"Father, father, I know, I know, Brother Qingque did a gunpowder experiment last year, Brother Jing also locked Brother Qingque and the next two into the firewood room, and did not allow him to eat, and did not let Brother Qingque not be allowed to return to Brother Jing's house, every day I secretly gave delicious meals to Brother Qingque to eat." Lizhi was like a good person at this time, and made a small report to Li Shimin.

"Oh? What else is going on? It seems that Qingque, you must have upset Mr. The queen sat on the sidelines and listened quietly until she had said this.

"Back to my father and mother, I can't really blame me and Jizhi for this matter, who asked Brother Jing to do these experiments, always not to make a little bigger, deliberately made a small bamboo tube size of gunpowder, said that it could blow up the house, which made me and Jizhi two people, it took more than a month to collect the materials, and made a few bamboo tube gunpowder by themselves, fortunately, the trial production was not successful, but it was punished by Brother Jing." Qingque was very resentful of Fang Jing at that moment, but then slowly, this resentment also changed, and the formula of gunpowder was closer in his calculations.

"You? Qingque, you don't want to die? The gentleman said that he could blow up the house, so why didn't you listen to the persuasion and have to get it? The queen was scared at this time, staring at the green sparrow, fortunately she was not injured, otherwise the queen probably didn't know how to describe it at this time.

"Qingque, don't do such experiments in the future, Mr. is right, if you don't allow it, you are not allowed to touch it." Li Shimin didn't know how powerful this gunpowder was, but Qingque was his son after all, and if he really died, he would be sad in his heart.

"Father, mother, I'm fine, I won't touch it in the future, but, father, I spent a long time calculating the formula for the gunpowder experiment, and I think it should be useful to my father, bring me a pen and paper." Qingque saw that his parents were very worried and concerned about him, and his heart was moved, but the ratio of gunpowder had long been engraved in his heart, and he shouted to the next not far away.

"Father, this is the ratio of gunpowder, and the way some explosives are made, please ask my father to send someone to the craftsman to supervise the trial, so as to verify whether there is a mistake, if there is a mistake, I can change it again." Qingque picked up the pen he had just sent, wrote the gunpowder ratio, and drew the improvised explosive clay pot, dried the ink, and bowed down and handed it to Li Shimin.

For the ratio of this gunpowder, Qingque is the most fancy, when he was in Fangjia Village, he was punished by Fang Jing, but fortunately, not too much happened, and Qingque will always probe the ratio of this gunpowder from Fang Jing's mouth from time to time, although he can't do experiments, but at least he also got a rough ratio from Fang Jing's mouth.

"Okay, Qingque is good, not a good son for his father." Li Shimin took the paper, it seemed simple, but he also knew the words on it, but his son almost exchanged his life for it, and his heart was greatly moved.

A day later, in a remote place in Miyagi, Li Shimin looked at the explosive clay pot he was holding in his hand, the clay pot was the size of a watermelon, and he doubted in his heart, such a little thing can destroy a house? Doubt is doubt, if you don't experiment, how can you confirm the results, this is what Qingque said.

"Father, mother, we need to stay away, Brother Jing said, it is better for us to stay away from twenty zhang, and we need some partition walls, otherwise we will be injured by the jars of this clay pot." Qingque is very happy today, the gunpowder experiment is a large-scale experiment, and this formula is still calculated by itself.

"Okay, let's all listen to the green finch, and we are all far away from twenty feet." After Li Shimin heard Qingque's words, he believed that what Qingque said must have some basis, not to mention that it was rare for Qingque to return solemnly, and a large number of people followed Li Shimin to retreat twenty zhang away.

"Holy Lord, you can begin." A personal guard ran over and reported to Li Shimin.

"Okay, let's get started." After listening to this, Li Shimin gave an order, hoping that there was no problem with the formula provided by Qingque, and even more hoping that this so-called explosive clay pot could bring him a different look.

"Boom" a loud sound, the place where the explosive clay pot was placed exploded out of a big pit, not to mention a meter square, the clay pot under the impact of gunpowder, exploded, scattered everywhere, not far away of the two guards, directly hit by the clay pot piece, the huge impact, knocked the two guards to the ground, the wound covered the whole body, bleeding nonstop.

"This ......" Li Shimin and the others, who were standing in the distance, were almost deafened by the loud noise just now, and their eyes were staring at the location of the explosion, completely not believing what had just happened.

"Hurry up and save people." Seeing that two of them had been injured, Qingque shouted loudly to the guards, woke up the frightened guards, and hurriedly ran over and carried the injured people away.

And Li Shimin and the others have long been frightened by the scene in front of them, or even frightened, and they have not come back to their senses until now.

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