There was silence in the cabin for a long time, and after a long time, Li Yuhua spoke, "I really shouldn't let you get involved in this matter, but even if you can't trust Your Majesty's heart, can't you still trust yourself?" If this thing can be applied to the battlefield, my Datang will no longer need to use the lives of soldiers to fill the battlefield, and there is no foreign race that can destroy the prosperity and stability of my Datang, and it is immeasurable merit for the country and the people, you can give up fame and fortune in order to eradicate a scourge like Wang Hao, why can't you do what you can for the common people in the world? ”

This is said, so that Sun Xiangfu doesn't know how to take it, sometimes, it's not that you don't do it, others will rest assured, if Sun Xiangfu doesn't participate in this matter, even if he commits a big crime like resisting the decree, with his merits and popularity, he basically doesn't have to die.

However, once involved in this matter, if the emperor is not at ease with him, he may not be the only one who will die, and in order not to leave a curse, the entire Sun clan may be exterminated.

Moreover, in Sun Xiangfu's view, appearance is very important, he grew up in a social environment where there is a face and everything, and there is no face to destroy everything, plus he has always been afraid of death, so it is absolutely impossible for him to personally participate in the actual research of gunpowder, after thinking for a long time, he finally said, "Actually, it's not that I don't want to help, it's just that I really don't know anything about this thing, you can tell me how you prepared it, but don't tell me what it's made of, what proportion, I can help you analyze the cause of the explosion, and I really can't do anything else. ”

Gunpowder, as early as the Spring and Autumn Period was made out by the alchemy of the alchemist, initially, it was only used as a fire, to the end of the Tang Dynasty, it began to be used in the battlefield, at that time it was still mainly to ignite the fire, the first year of Tang Zhaozong Tianyou, Yang Xingmi's army besieged Yuzhang, that is, with a stone thrower, after the hanging wire was ignited, the gunpowder bag was thrown out, and the city gate was burned.

In the Northern Song Dynasty, the government set up a gunpowder workshop, and gunpowder arrows, thunderbolts, etc., mainly burned and propulsed, and slightly explosive gunpowder weapons were produced, but their real lethality was not great, otherwise, the Northern Song Dynasty would not have been defeated in the hands of Liaojin one after another.

And now, thanks to Li Yuhua's research, the power of gunpowder has been greatly improved, and through Li Yuhua's narration, Sun Xiangfu learned that he was testing the combustion propulsion of the newly configured gunpowder, igniting a bamboo barrel of gunpowder, and then producing an explosion.

Judging from the amount of gunpowder in the bamboo tube, as well as the results caused, the gunpowder he prepared was not very powerful, because, almost an ultra-close-range explosion in his hand, only broke his two fingers, and did not seriously damage his internal organs, which is still a little short of the best ratio of Hei gunpowder, but if it is used on the battlefield during this period, it is indeed enough to crush the opponent.

Because, the gunpowder of this energy is loaded into a clay pot, an iron nail is added, and after it is ignited, it is thrown into the enemy's formation, which is enough to destroy the enemy's formation and make it chaotic.

Then, Sun Xiangfu soon heard a loophole in Zhang Yuhua's explanation, that is, he did not make a lead, but directly ignited the gunpowder stuffed in the bamboo tube, which is strange if he doesn't hurt himself!

Don't underestimate the process of gunpowder burning from powder, to being deviced, ignited with a hanging wire, and then to being closed and ignited with a wire wrapped in gunpowder.

"You need to put a fuse on the gunpowder device that you've only made, that is, something that burns slowly and then detonates it."

"Leads?" Zhang Yuhua made up the idea put forward by Sun Xiangfu, and then, his whole eyes began to light up.

His original research direction has always been how to make gunpowder more instantaneous, so it produces impact, and uses it to push arrows to achieve the effect of long-range attacks, but later, the explosion of gunpowder made him notice the power of this thing's explosion, and the lead is a good way to solve the problem that it is too violent and easy to injure his own people.

"Yes, the lead is to wrap the gunpowder you have prepared in a thread made of soft paper, connect this wire with the gunpowder installed in a bamboo tube or clay pot, connect it to the gunpowder inside, ignite the fuse, throw the bamboo tube or clay pot, and it will burn into the sealed bamboo tube or clay pot, causing it to explode in its entirety to kill the enemy.

Of course, if you use a bamboo tube, you don't need to be very precise, but if you can't accurately calculate the length of the lead when you use a clay pot, and the clay pot hits the ground and smashes it, and the lead burns through, then it may only ignite the gunpowder exposed to the air and ignite the fire. ”

Sun Xiangfu said very simple and clear, Li Yuhua understood as soon as he heard it, and then, he was very excited to raise his hand with only three fingers left, and hugged his fist to Sun Xiangfu, "You are really the person who can help me solve this problem, please allow me to thank you on behalf of all the people who have lived a prosperous and stable life for a long time because of the birth of this new weapon." ”

"Don't, don't come with me like this, if you want to say thank you, the people should thank you, after all, this explosive gunpowder is something you have researched and improved.

In addition, don't think that if you solve this problem, it can be immediately applied to the military, in fact, before the configuration of the industrial production line can not meet the standard, it is difficult to ensure its safe production, when it is used, the preventive measures are not in place, it may cause a disaster to our army, and once it is spread out and abused, then, we may not be heroes, but sinners. ”

Gunpowder, in any period, it is a dangerous goods, especially when a group of people who don't understand its characteristics come to use it, Sun Xiangfu said this, which suddenly made Li Yuhua's face solemn, after being injured by gunpowder at close range, it knows too well how powerful this thing will be once the amount is increased, which is why Li Shimin is very cautious and sent secret guards to be responsible for secrecy work, it seems that the loss of his fingers and appearance only made him take a big step forward in the field of gunpowder research, And in the field of application, he still has a long way to go.

Just a meal of effort, Sun Xiangfu got off Li Yuhua's ship, now, the paper mill can make all kinds of paper according to his requirements, get a qualified lead, it should only be a matter of time, when Sun Xiangfu said goodbye to him, repeatedly emphasized that he should pay attention to the problem of precision, after the lead is made, how long does it take to burn a foot long, it needs to be calculated with a more accurate time, how much gunpowder is loaded, what kind of explosive force will be roughly produced, and how much range it will be affected, it also needs to be calculated more accurately. If these data are not accurate, it is likely that they will hurt their own people in the application, and then it is a matter of confidentiality.

In fact, with the current military strength of the Tang Dynasty, the necessity of making gunpowder is not great at all, but early research and progress has the advantage of early research and progress, which can give the country more layers of force protection, so as not to be taken by others when the time comes, but let us ourselves be knocked down by what our ancestors first invented, then it is not beautiful.

Of course, it was not very good to have a secret in my heart that could not be said, so when I went home for dinner, the atmosphere was very wrong.

"Doesn't the husband have anything to say to the concubine?"

"Let's do it! Your Majesty has a strict decree that I must not mention it to anyone, including you, so ah! You better don't ask. ”

"The concubine didn't say this, his uncle had already told the concubine about this matter before."

"Oh, so what else is there to say?"

"Your Majesty doesn't mean to let you go back to Chang'an to do something?"

"No, even if there is, I don't want to go back and do this, this thing is more dangerous, even if I resist again, I won't do it."

Hearing this, Yu Xiu'er did not show any disappointment, but said with a happy look, "This is the best, the husband cultivates the land here and educates the people, which is better than going to the court to be an official." ”

Hearing this, Sun Xiangfu looked at Yu Xiu'er with some surprise, before, she didn't have such an attitude, it seemed that pushing herself to become the pillar of the country was what she and the entire Yu family expected of her, and now, why did she change her character?

"Xiu'er! Could it be that you also like life in Jiuyuan County and don't want to go back to Chang'an? Or, do you think that if your husband continues to be here, the family will be more prosperous? So ······"

Yu Xiu'er shook her head with a smile and said, "No, husband, do you know, who is the last person who can be a teacher in the world?" ”

Sun Xiangfu said a little inexplicably, "For the world's teachers? Confucius? ”

Yu Xiu'er nodded and said, "Exactly, and now, husband, you are almost also a teacher for the people of the world." ”

"This ······, Xiu'er, don't you want me to be a saint again!" When Sun Xiangfu heard this, he immediately knew Yu Xiu'er's plan, compared to being a saint who has been famous through the ages, what is it to be a prominent court official!

If Sun Xiangfu has an official position, then he should do it within the scope of his duties to educate the people.

Now, he has no official position, but he is dedicated to educating the people, or educating the people for free, which is even more rare.

"It's not that the concubine wants it, it's the husband himself who has been doing it, after Deshou married Princess Linchuan in Chang'an, he has returned to Shanyang, it is said that the queen mother and Concubine Wei gave Princess Linchuan to dowry, just in terms of gold and silver money, it is as high as five million, which is several times more than the dowry flowers when the prince married Shuya, Deshou and Princess Linchuan decided to donate all the money to the people in poor areas, and build schools in those places for children to study for free.

Moreover, these schools will also be specially added to the agricultural discipline, all students, if the foundation of agriculture is good, can go to the agricultural college in Shanyang for free to learn more advanced agricultural technology, now, the peasants and the people in the world, all say that my grandson is good, you after a hundred years, may not be able to be elected by the people as holy. ”

Hearing this, Sun Xiangfu was silent for a long time, and finally patted his thigh and said, "I know why you care so much about the influence of our family during this time, even a few of your own children are crying, for fear that others will know, it turns out that they are afraid of my bad image and want to push me to the position of a saint, but in this way, I am really tired." ”

"Suffer a little, if you can exchange for the name of a saint, bless the descendants of my grandson, the concubine thinks it is also worth it, by the way, in the future, the husband is not allowed to take the child to play on the street and be seen······"

Sun Xiangfu listened to Yu Xiu'er's nagging, his face was full of sadness, which made him depressed than he suddenly had a secret that he couldn't tell.