So, under the attention of everyone in the yard, Zhang Mingwei began to explain.

"The first question is, why can man only walk on the ground and not in the air?" Zhang Mingwei first said the question, and then answered them, "Because there is gravity!" What is gravitation......

Newton had only been in Chongzhen for fifteen years, that is, he had just been born last year. Therefore, this gravitational force became the first thing Zhang Mingwei proposed.

The reason why Zhang Mingwei has been mentioning this is because this gravitation and Newton's three laws are actually the basis of physics. If you want to popularize physics in the Ming Dynasty, this foundation cannot be bypassed. Therefore, he didn't mind saying it when he was in Jingshi, and he said it again on Jiangnan's side.

However, he said that there is a gravitational force and that any object has a mutual attraction, but this just made everyone except Zhu Yujiao dumbfounded.

When many people hear this, they just look at each other, and they don't feel attractive at all!

However, when many of them saw Li Xiangjun and others, they seemed to have a sudden realization, as if they were indeed a little attractive.

That Xingguo Gong said this, did he forget to say a premise, it should be between men and women, or between men and women?

But when they heard what they said about this attraction is not related to the appearance of the person, but is directly proportional to the quality and inversely proportional to the distance, they will be completely confused.

When Zhang Mingwei was talking, he naturally saw their reactions and basically guessed what they were thinking.

So, he gave an example: "The reason why people can only walk on the ground is because the mass of the earth is too large, so it will attract us people to the ground, even if you jump, you will only fall back to the ground in the end......"

Zhang Mingwei was not perfunctory, and explained seriously.

The reason why this is so is because Jiangnan is a thriving place of the Ming literary style. If the wind of science can blow in the south of the Yangtze River, it will have twice the result with half the effort for him to popularize science and technology.

On the side of the scene, there are many readers, and they are invited by the top brands, all of whom have a certain reputation, if they can influence such a group of people, the help for the promotion of science and technology should not be underestimated.

Therefore, Zhang Mingwei spoke seriously.

However, this kind of thing, even if Zhang Mingwei is right, but these knowledge are really beyond the comprehension of these people. Therefore, for a while, these people are more at a loss, and they still can't understand.

By the time he finished the first question, most people, including Qian Qianyi, were "so it was", but in their hearts, they were actually not convinced.

Zhang Mingwei didn't care, and then talked about the second question, which is based on gravitation, and then buoyancy; The third problem is how to overcome gravity, or the constraints of gravity.

As soon as these questions are asked, as in the first question, these people, even if they are the elite intellectuals of this era, who are familiar with the subset of scriptures and histories, cannot understand them.

After all, what Zhang Mingwei said is all truth, and it is not the kind of shock that seeing is believing, and most of them are pure theories.

At the end of Zhang Mingwei's speech, he looked at Qian Qianyi and asked: "These three questions, once these knowledge can be learned and used well, then people will be able to fly in the sky, from Yangzhou to Jingshi, in two or three hours." Even if you go to the moon to see it, you can go. You say, is this kind of learning a serious study that benefits the country and the people? ”

"Yes, indeed!" When Qian Qianyi heard this, his face showed shame, and he quickly nodded and said, "This kind of knowledge is really unheard of, it is an old man...... The grass people are lonely and unheard! ”

Wu Zhen and the others, who were kneeling on the ground, also echoed in a loud voice, looking like they were being taught.

As for the others, about half of them are also agreeing. The rest is to bow their heads and remain silent.

Zhang Mingwei found that Liu Ruye's face was obviously unconvinced, but she looked at Qian Qianyi and didn't say anything in the end.

Obviously, many of them are just afraid of the power of Xingguo Gong, so they dare not go along with it.

Zhang Mingwei knew it in his heart, but he didn't care, because whatever he said now, they would just go along with it. If they want to change their minds, wait a minute.

So, he put this topic aside, and then asked Qian Qianyi: "I also heard that you have an opinion on the tune in "Ming Pao", don't you?" ”

"......" Qian Qianyi saw that Xingguo Gong had not stopped, and he couldn't help but secretly complain in his heart. He wanted to deny it, but when Xingguo Gong heard it with his own ears, how could he deny it?

However, admitting it again in person once again aroused the dissatisfaction of Xingguo Gong? To be honest, he didn't dare.

So, he was a little embarrassed again.

Zhang Mingwei did not let him go, but continued to ask him: "Let me ask you, what is the song used for?" ”

When he said this, Qian Qianyi was stunned again, and asked himself in his heart: What is the song used for? Isn't it sung?

Other people's thoughts are actually much the same. All of them are very strange, why did the Xingguo Guild ask such a shallow question?

Liu Ru saw that Qian Qianyi was stunned again, so he quietly pulled off his shirt with his hand. Guogong is asking, how can it be like this all the time, don't make Guogong unhappy again!

Qian Qianyi was pulled by him, came back to his senses, and hurriedly replied: "The grass people think that the music is attributed to poetry and songs, and it is used to express a certain feeling and create!" ”

Originally, he also wanted to say that poetry and songs have their own requirements, and so do songs. And the previous song was obviously out of tune, and he didn't comment on it wrong.

However, seeing Xingguo Gong staring at him, he couldn't say anything.

Zhang Mingwei listened, and finally nodded, which was regarded as approving his words, this was the first time, which made Qian Qianyi feel a little excited, and secretly glad that he finally answered correctly.

And Zhang Mingwei picked up the newspaper with his hand, pointed it down and showed it to Qian Qianyi, and then asked, "You are very disdainful of this song, right?" Is it because this piece can't express emotions without following any word card? ”

When Qian Qianyi heard this, he felt a sigh in his heart, and he dared to admit it.

But before he could say anything, he saw Zhang Mingwei turn his head and instruct Liu Jin: "You can all sing this song." Come, sing to them! ”

As soon as Liu Jin heard Zhang Mingwei's instructions, of course he didn't have to say anything.

So, these Jinyi guards in the courtyard have been following Zhang Mingwei, so naturally there is no problem, so they sang together.

"Majestic and high-spirited, through the Golden Bull Road, to protect peace, to defend the land of Shu, is to protect the hometown, the Ming Dynasty is a good man......"

More than 20 Jinyi Guard captains sang this song together, generous and powerful, with a manly flavor, which is by no means comparable to the literary and crepe tune in Jiangnan.

Although they are not good at singing, the tune of this song is not very demanding for the singer.

It can be said that this song was sung for the first time in Jiangnan, and suddenly, the people in the courtyard were a little shocked.

What is refreshing, this is refreshing!

Even Li Xiangjun and the others were originally going to sing this tune, but suddenly, they felt that they had misunderstood the true emotion of this tune. If you sang it before, you would definitely not sing it well!

This song was originally meant to be sung like this!

After these Jinyi guard captains finished singing, Zhang Mingwei saw that they didn't come back to their senses, and he didn't care about them, so he said: "This song was created just after the end of the New Year this year, when the army arrived in Hanzhong, and when the situation in Shu was tense, it was necessary to risk going to Shu to rescue through the Golden Bull Road. The officers and soldiers in the army all sang this song, and finally passed through the Golden Bull Road before the beginning of spring, and went to Shu in the end, and caught the thieves and rebels off guard, thus laying the foundation for the pacification of Shu today. ”

Originally, the people in the courtyard were shocked by this novel song, and when they listened to the background of this song, they thought that the imperial army would sing this song to suppress the thieves when they passed through the Golden Bull Road before the beginning of spring, regardless of the danger.

These people were shocked just by thinking about it.

To be honest, such a scene, neither of them has ever dreamed of it!

At this time, they seem to really understand what it means to be majestic!

"What a good man!" Liu Ru thought about the picture in his mind, and suddenly spoke with emotion, finally breaking the silence in the courtyard.

Her age is older than Li Xiangjun. And her early years were not very smooth, and she experienced many ups and downs, so she was even more impressed that the imperial army could calm the thieves and restore the people a peaceful value!

Because of this, she was the first to sigh with emotion.

Hearing her say this, the people in the courtyard came back to their senses.

Li Xiangjun and others, who are the most expert in the song, were all amazed.

"This song is really the best song that the slave family has heard in their lives!"

"yes, so do I. I feel that after listening to it, although it is a daughter, she also has a lot of enthusiasm! ”

“……”

They were like that, and everyone else was alike, marveling at this rousing song that they had never heard before.

Of course, among them, there are also some people who are afraid of the power of Xingguo Gong and echo the crowd's amazement.

However, whether it is sincere or not, as long as you observe it carefully, you can hear a little bit except for the actor-level acting skills.

Even Qian Qianyi was full of shame, and said: "This song is indeed an emotional work that the old man has never heard, it is impassioned, and it reminds the old man of his youth......"

When he said this, he suddenly came back to his senses, and just now he seemed to call himself an old man in front of Xingguo Gong!

Suddenly, Qian Qianyi's expression was panicked, and he hurriedly added: "The grass people are convinced, they are indeed lonely and unheard, and the song really can't be confined to the word card!" ”