When Zhang Yifan saw that they were all staring at him, he understood that they wanted to know. However, he didn't say anything, but continued to hang their appetite and said: "You are all wars, you should know how much impact the appearance of firearms has on the war, right?" ”

For the three famous generals in front of him, this answer does not need to be answered. Especially after Zhang Yifan's improvement of the power of firearms, they have a deeper understanding.

Therefore, when Zhu Di heard this, he was immediately excited, and asked curiously: "Is it really like a firearm?" Wouldn't that be a huge change in the war? ”

"That's right!" When Zhang Yifan heard this, he immediately smiled and said, "What I will take these people to do next is a good thing that will change our lives, just as firearms change the form of war, and it can even be said that under the continuous improvement of this kind of thing, our people's lives will undergo earth-shaking changes, and the lives of the people of Daming will become better, and Daming will become stronger and become a country that other countries cannot surpass!" ”

Hearing his words, all of a sudden, whether it was Zhu Di or Xu Da, or Lan Yu, or even the palace maids standing and waiting on the side, all showed incredible expressions.

They can't imagine what it is that can have such an exaggerated effect.

Let the life of the people of Daming become better, Daming will become stronger, and become a country that other countries cannot surpass!

Seriously, including Xu Da, I can't think of what it will be!

The hall was a lot quieter, and almost all of them were like sculptures, all of them maintained their expressions of listening to the conversation, staring at Zhang Yifan's posture.

After a long while, Zhu Di came back to his senses and couldn't help asking: "What is it that can have such a big effect?" ”

If it is said that at this time it is still the ninth year of Hongwu, when Zhang Yifan's soul has just passed through, if he says this, no one will take it seriously and ignore it directly.

If Zhang Yifan said this when he first became a concubine, then it might lead to a tidal wave of impeachment, accusing him of beleading the public and being uneasy and kind, just like those cult propaganda.

But now, after Zhang Yifan has made considerable achievements and proved that he can create miracles again and again, he said this again, at least the three people present did not suspect that Zhang Yifan was exaggerating, but just couldn't think of what Zhang Yifan said?

This is the recognition that Zhang Yifan has gained through hard work over the years, which is the so-called qualification!

However, after Zhang Yifan heard Zhu Di's question, he just smiled faintly and said, "You want to know?" I don't say it, but I teach it in class, and you can listen to it. ”

Speaking of this, he suddenly seemed to remember something, and added: "Oh, by the way, I remembered, my father said that you don't have to listen, what should you do, you will know when I make it!" ”

Zhu Di: "......"

He understands very well that this eldest brother-in-law is out of him!

came back to his senses, Zhu Di was in front of Zhang Yifan, but he didn't care about his face, and immediately replied: "Live to be old, learn to be old, what's wrong, I'm studious?" ”

This is indeed true, Zhang Yifan can't refute it, but he still said: "If you have a specialization in the art industry, you should take your soldiers and clear all enemies for Daming." What I did was to enhance the national strength of the Ming Dynasty and have a clear division of labor. When your son grows up, I can teach again! ”

When Zhu Di heard this answer, he was also satisfied, but he was also a little worried, so he asked again: "When my son and daughter grow up, what if you finish teaching all the good things?" ”

His eldest son is the son of King Yan, who inherited the title, needless to say. The others are his daughter who is four years old, and his second son is just over a year old, which is obviously too young.

For him, he is really worried, he is afraid that Zhang Yifan will finish teaching all the good things!

None of the others spoke, just listened to the two of them talking. Listen so carefully that they forget about the work at hand.

Zhang Yifan laughed when he heard Zhu Di's words, and then replied: "Didn't you just say that there is no end to learning, and you can learn the knowledge?" Can you finish the good stuff? Let me tell you, according to the words deduced by my knowledge, there is no knowledge in heaven and earth, and there is no place where you can use knowledge to make good things, and you are afraid that your son and daughter will not have good things when they grow up? ”

When Zhu Di heard this, he asked in shock: "You mean that everything in the sky and on the earth can be made?" What can be made in the sky? Something that flies like a bird? ”

When he heard the words just now, he felt that there was something he meant. But he felt that this was really unimaginable, so he turned his head and confirmed to his father-in-law first: "I just heard that Yifan meant this, right?" He said that the heavens can also make it? Right? ”

Zhu Di was afraid that Zhang Yifan would deny it, so he had to pull a like-minded person, or a companion, to confirm the matter.

When Xu Da heard the question, he came back to his senses, nodded and agreed: "I listen, Yifan does mean this." However, flying in the sky, it can't be, right? ”

Zhang Yifan saw it, and without waiting for Zhu Di to ask him, he immediately said: "Why is it impossible, in fact, it has been there before." For example, Kong Ming lanterns, kites, etc., isn't that? ”

"......" Zhu Di, Xu Da and others were speechless when they heard it.

They thought that there was something deep flying in the sky, but they didn't want to be kites, Kong Ming lanterns and the like, they were really excited in vain!

Coming back to his senses again, Zhu Di said a little helplessly: "It turns out that these are these things, I was really frightened by you just now, thinking that you can still make things that fly in the sky, and things that can also have a great impact on war like firearms!" ”

In the main hall, when the topic was here, the palace maid who had forgotten to do things in shock just now rerealized her duty. Lan Yu continued to eat and drink.

The pony seemed to be exaggerating a little, and he was really scared just now.

Zhang Yifan looked at them like this, and finally looked at Zhu Di, and asked lightly: "You underestimate these things?" Then I ask you, why can kites fly in the sky? Why can Kong Ming lanterns be lifted into the sky? Have you thought about why? Have you ever thought about understanding these inner truths and then transforming them, will you be able to make people lift off with the help of what you have created? ”

Zhu Di: "......"

He usually likes to fight, so he thinks about these things, and when he heard Zhang Yifan's continuous rhetorical questions, he was dumbfounded again.

Xu Da, Lan Yu and others all stopped their movements again, attracted by Zhang Yifan's rhetorical question, and finally realized that what Zhang Yifan was referring to was not just a kite and a Kong Ming lantern!

Zhang Yifan saw that they were thoughtful, so he continued to ask: "Do you want to know how the clouds in the sky are formed, and what is the top of the clouds?" Or what would be above the blue sky......"

His rhetorical questions, suddenly, dominated the atmosphere in the hall again, and suddenly became quiet again, and at the same time made the people in the hall forget their movements.

After Zhang Yifan asked a lot of questions, he looked at them and said in a very affirmative tone: "There are too many things in this world that need to be clarified. As long as I learn it well, I will be able to understand the incomprehensible and imaginary truths one after another, and apply what I have learned according to the truths I have discovered. I can guarantee that as long as this development continues, in the future, we human beings will dominate this world, and there will be no place to go. ”

Listening to his description, Xu Da, Zhu Di and others were all dumbfounded.

Zhang Yifan's words are really unimaginable to them!

In fact, they can't be blamed for this, in the entire history of mankind, the previous thousand years have not changed much, and the imagination of human beings can only be expressed with the help of myths.

…………………………

In this celebration banquet, although the number of people at the banquet is limited, there are many palace maids who serve. In terms of the total number of people, it is not good.

Zhang Yifan's words, after the banquet ended, because they had a huge topicality, there were no accidents, and they spread in a very short time.

The students who arrived in Beiping were all young people between the ages of 16 and 26, full of excitement, with the expectations of the family elders, and won the quota among many people.

At this time, some students are already anxious, and they have some complaints. However, after Zhang Yifan's words in Yanwang's Mansion came over, suddenly, everyone had any opinions, and they were afraid that Zhang Yifan would know about them and expel them.

Finally, Zhang Yifan said that in three days, he would officially start classes, which made these students look forward to the end and were very excited.

As a result, what everyone didn't expect was that on the day Zhang Yifan came to class, all the people here in the academy were replaced.

The original subordinates are all relatively old, at least middle-aged. As a result, on this day, all of them were replaced by young men, who looked more like they were reading, rather than working.

Someone asked curiously, only to know that these people were the children of the powerful here in Beiping, and they were not on the list of students but they really wanted to listen to Da Pony's class, so they used money to buy those subordinates to take leave, and replaced them to take turns to observe, and by the way, they audited.

This kind of thing, since ancient times, there may be one or two studious people who have done this kind of similar thing. But most of them can't afford to read, so they will use this method. It's not like the children of the powerful use this method, how embarrassing!

But this time, it is obvious that they don't care about the shame of this practice. The reason is actually very simple, I just want to hear what the big horse says to these students, which can create good things that change the world, make the people of Daming live better, and make Daming stronger!

What if you hear one or two, and then you can make this kind of thing, just pretending to be a subordinate? No matter how embarrassing it is, it doesn't matter!

After these students figured out this matter, they suddenly felt a kind of nervousness inexplicably. If these formal students fail to comprehend the knowledge of the big horse, but are compared to these pretending subordinates, it will really disappoint the family and themselves!

What they didn't expect was that when the hour was approaching, King Yan and Princess Yan brought their eldest son, as well as Xu Da and Lan Yu and others, to rush over.

Zhang Yifan's batch of students was set by Zhu Yuanzhang, with 30 men and 20 women, a total of 50 people. Divide into two classes. Now that Zhang Yifan is speaking, according to the previous notice, he will all go to the same class, squeeze it, and he can barely squeeze it out.

But now, with a large number of uninvited people, the classroom is obviously overcrowded.

After Zhang Yifan heard the news and Zhu Jingjing came over, he couldn't help but be speechless when he saw this scene.

So, he simply started the class in the courtyard outside the classroom.

Fortunately, at this time, it was late September of the 14th year of Hongwu, and even here in Beiping, it was still not cold, and it was not a big problem.

After a lot of commotion, everyone was finally in place and ready for class.

Zhu Jingjing stood aside with the child in her arms, watching Zhang Yifan walk to the podium under the eaves and start the class.

At this time, there were at least more than 80 people inside and outside the courtyard, and the originally spacious courtyard seemed a little crowded. However, there is no sound, and if there is one, there is only the wind.

Zhang Yifan looked at everyone looking at himself with expectant expressions, at this time, he had already practiced, calmly, and still in that very confident tone, he said: "There are a lot of people here today, and I also know what you are coming for, so don't say anything, let's get straight to the point, so as not to let you run in vain!" ”

As soon as he heard this, Zhu Di cracked his mouth and laughed silently. This brother-in-law is so exaggerated, if you don't come to listen to it, you won't be able to sleep well at all!

Under the expectation of everyone, I heard Zhang Yifan speak: "The knowledge I gave before is mainly divided into three categories: arithmetic, physics and chemistry, in fact, there are more classifications, which will be taught in the future." Now, I will talk about these three categories, which you must remember. Arithmetic is the foundation and is necessary to learn physics and chemistry well. And physics and chemistry, as long as you learn it, you can create unimaginably good things! ”

Speaking of this, he paused, looked at the faces eager and excited, and then continued: "What I am going to talk about today is an application of physics, you have realized it, and you have created something new according to the truth of your enlightenment, which will change our lives in the future, the kind that will change the world like a sea change!" ”

This is the purpose of Zhu Di, Xu Da and others to put down any shelf and run, and they are very satisfied when they hear that they want to get what they want.

Everyone is looking forward to it, and they are thinking about whether they will be able to understand what the big colt said with their own ability. Although I used to lead troops to fight, or something else, maybe I can realize it!

When they were thinking like this and looking forward to it, they saw Zhang Yifan on the podium, turn his head to the side, and gestured to his personal guard, and then saw the personal guard move out of the thing and show it in front of everyone.