I didn't expect that a famous general like Zhang Xutuo would appear in Jinling Academy.
"Are you from the north?" Li Xingchen asked curiously.
In his impression, Zhang Xutuo was probably from the north.
"Your Majesty, the student is indeed from the north. This time the Han Dynasty's heavenly soldiers marched northward, and there was war in the north. The student went south with his family. When he heard that Jinling Academy was recruiting students, he came boldly. Fortunately, the student studied at home for a few days, so he was lucky enough to be admitted."
Zhang Xutuo said hurriedly and humbly.
Those who come out of Jinling Academy are all true disciples of the emperor, so there is nothing wrong with him calling himself a "student". And to enter Jinling Academy requires "passing five passes and killing six generals", so it can indeed be called a "lucky".
But regardless of whether it was a fluke or not, those who are qualified to stand in front of Li Xingchen are definitely regarded as the proud ones of heaven.
Li Yuan is such a proud man of heaven, and Zhang Xutuo, who single-handedly supported the Sui Dynasty in Shandong in history, should also be considered. However, Zhang Xutuo, who was standing in front of Li Xingchen at this time, was thin and frail.
He looks like a fierce general, but more like a weak man with no strength.
This is not difficult to understand. Zhang Xutuo's hometown in Henan has been in the flames of war. He followed his family and traveled south. He was hungry and full along the way, and naturally he could not grow strong. In the final analysis, it was Li Xingchen who changed his life.
destiny.
In Jinling Academy, physical fitness is very important, but it is not the most important.
The most important thing is still the brain.
It is obvious that Zhang Xutuo's brain is not bad, and his experience of escaping also enriched his life experience, which is something Li Yuan cannot match.
However, Li Yuan did not intend to admit defeat just like that. Zhang Xutuo's performance was not bad and he had always been Li Yuan's strong enemy. Now that Zhang Xutuo was so arrogant in front of His Majesty, he certainly could not lag behind. Li Yuan immediately said: "Your Majesty said
He said that the students had never thought of it before. If the earth is really round, then why can we still stand on the ground, and why can we walk forward or backward without falling? "
Li Xingchen nodded: "This is a good question, but have you ever considered why the apple falls from the tree? It falls down instead of up?"
I was speechless for a while in class.
Li Xingchen looked at the dumbfounded school teachers: "The students don't know, do you all know?"
Seeing that no one answered, Li Xingchen shook his head. It seemed a little too advanced to tell these ancient people from thousands of years ago that even junior high school students and elementary school students in later generations would understand.
At this time, Li Xingchen felt somewhat lonely and seeking defeat.
Before, he was standing at the bottom and struggling upwards. He never considered or even realized that he actually had not only thousands of years of experience in war and political strategy, but also more about science and technology.
Technology experience and knowledge.
Fortunately, it is not too late to start enlightening people of this era bit by bit.
Li Xingchen had no plans, nor did he expect to achieve success in one step. The development of any scientific thought has a process, and even the process is full of twists and turns. After all, the development of thought is inherently spiraling.
As long as you play an enlightening role and ignite this spark, one day it will start a prairie fire.
It may not be known yet whether Newton's ancestors were savages in the mountains. Once China really begins to develop modern physics and chemistry, it means that China will be ahead of this era, and even permanently ahead of the entire world.
Li Yuan's voice clearly revealed his unconfidence, and he said while thinking: "Your Majesty, the student thought that maybe it was because there was some strength under our feet, or to be precise, the ground we were stepping on was somewhat strong, so we would
We are fixed to the ground, so when we jump up, we will eventually fall to the ground. This may also explain why the ground under our feet is round but it is difficult for us to feel it."
The other students were also thoughtful, this was indeed a possibility, it could even be said to be a new idea that they had never imagined before.
Is the world actually like this?
And Zhang Xutuo suddenly said: "And maybe it's because the world is too big, and the place we know is too small, so although the land under our feet is round, we are just a small dot on this big ball, so
It’s not that round. I just don’t know how we can know how vast this world is?”
When he said this, the students suddenly became excited.
"As long as we keep walking east or west, if the earth is really round, then we will definitely be able to return to the starting point!"
"You can go south and north too!"
"Yes, and if everything is the same as in China, and the apple will fall downward instead of upward, then it means that there is really a force coming from the inside of this big ball, fixing us all on the ground."
"Perhaps we can dig the hole downwards, as long as we can dig to the other side, and then calculate how big the sphere is based on Zu Chongzhi's pi."
The chattering discussion among the students made Li Xingchen couldn't help but smile.
He had forgotten that there was another Zu Chongzhi during the Southern and Northern Dynasties. Although Zu Chongzhi has passed away, the pi he calculated shows that people in this era have gradually begun to realize the importance of the circle in people's lives and the budding development of mathematics.
Li Xingchen's mathematics is not very good, but this does not mean that he will completely ignore the importance of mathematics. Mathematics is undoubtedly the foundation for the development of physics, chemistry and other disciplines, and only by developing mathematics can it provide the basis for the development of other disciplines.
Theoretical basis.
Circles are a part of mathematics that people recognized earlier.
And understanding circles is also understanding the world. Because the world is inherently round.
Fortunately, people in this era are actively understanding the circle, and they are not reluctant to understand the world.
Regardless of whether these students will realize their dream of eventually traveling around the world to prove that the world is round, Li Xingchen knows that at least today, he has planted a seed in their hearts. This is likely to be the seed that induces the big man to do geography.
The seeds of great discoveries and even great voyages.
Getting rid of the shackles of the land and heading towards the deeper ocean is what Li Xingchen hopes these students can do when they grow up, even what the descendants of these students can do.
Dahan’s biggest advantage now is that it’s early enough.
Europe is still closed and dark, and the big guys still have time.
Just when Li Xingchen was about to talk about some basic knowledge, Li Ping walked in quickly. Looking at his face, Li Xingchen knew that something must have happened.
It is definitely not a trivial matter that can make Li Ping look solemn on his face.
Nine times out of ten, someone is being dishonest.