Iron Dynasty

In a vacant classroom at Bowen College, Luo Xin and Yue Yun took their seats with them.

Xiao Ming was standing on the podium at this time. He looked at the people below and thought that he would probably live the same life as a teacher in the future.

For him, it is his advantage to spread scientific knowledge as much as possible now.

This school will be the school of the Naval Academy in the future. I will inform you of the class in the future, and you will gather here. Xiao Ming said to Yue Yun and others.

Yes, Your Highness. Yue Yun and the others looked excited, and their voices were particularly loud. How could these fishermen's children who were fishing at sea ever think that they were qualified to teach in the school?

When they were young, they were very envious of those who were able to study in private schools, because once they were able to study, it meant that they would hope to become high officials in the future, and not being able to study meant that their fate would only be the same as that of their ancestors. is a fisherman.

Naval Academy? Your Highness, should our artillery also have an artillery academy? Luo Xin cooed.

Xiao Ming smiled and said, Of course there is. The vacant room next door is the school of the Artillery Academy. After this king gives you the method of aiming the artillery, you will be responsible for teaching the artillery in the future.

Really. Luo Xin laughed.

This Bowen Academy is a very mysterious place to outsiders, because as an academy, it is guarded by guards, and it is as tightly guarded as a military barracks.

And unlike a small house in a private school, Bowen College has a large area, and there are many vacant classrooms in the college, and some of them are under construction. When they passed a school just now, they saw Lu Tong talking in a school. He was surprised by the fact that a group of scholars were sitting below with some weird knowledge.

Xiao Ming nodded. For the sake of convenience, Xiao Ming planned to build Bowen College into a comprehensive college. This was also for the convenience of classes, otherwise he would be bored just running back and forth.

Moreover, although many scholars were admitted to the Bowen College, based on the base of Qingzhou scholars, many of them were not more than a thousand.

In addition to Lu Tong, the equipment department, the mines, the military workshops and other technical personnel, and the navy and the army in the future, the number of people is only more than 2,000. In modern times, it is basically equal to the size of a middle school.

Therefore, now basically there is only one school for a major.

After the school was designated as the school of the Naval Academy, Xiao Ming said: Yue Yun, you said that sailing is very simple, then this king asks you, how do you sail at sea?

Of course you're walking along the land where you can see the land? Yue Yun looked a little smug, feeling that Xiao Ming also had something he didn't understand.

Xiao Ming sneered.

This school is a brick-concrete structure, that is, a modern tile-roofed building. In front of the school, he specially instructed to leave a blackboard.

Basically, this school is not much different from modern teachers. At the beginning, the craftsmen did not know what a blackboard was. Xiao Ming also came over to guide the craftsmen.

The blackboard in the school is actually very simple, it is just a smooth cement board, and black paint is applied on the cement board.

At this time, in front of Xiao Ming was Jihe chalk, which was made of limestone and gypsum.

In order to facilitate teaching in the classroom, he specially made modern chalk using limestone and gypsum. After all, this is not a complicated process, and it was produced by the way when making cement.

Picking up the chalk, Xiao Ming drew a large oval on the blackboard of the school, and then drew a stroke in the oval. Twenty minutes later, an accurate world map appeared in front of everyone.

His Royal Highness, what is this? A map? A map of what place? Luo Xin saw that it was a map, but couldn't tell where it was.

This is a map of the world. This whole is called the earth. Now we live on the earth. Let me ask another question. Do you think the saying that the sky is round and the place is correct?

Luo Xin grew up in a Confucian academic atmosphere, he said: Your Highness, you are joking, Confucian records, in Da Dai Li. Zeng Zi Tian Yuan, Shan Juli asked Zeng Zi: Tian Yuan Yuan As for the place, Zeng Zi said: the sky is round and the place is not covered by the four corners, so there is no doubt that the sky is round.”

At this time, Yue Yun was silent, he had not received Confucian education, the people in the fishing village were illiterate, and no one talked about it at all, he suddenly said: His Royal Highness, the grass people don't understand any classics and history, but every time I see fishing boats coming back At times, we always see the sail first, and then the hull, if the ground is square, how can this be?

Xiao Ming smiled and nodded. Luo Xin's thoughts were deeply ingrained, while Yue Yun was easily suspicious because he didn't read.

The reason you see such a scene is because the place we live in is round. Xiao Ming concluded.

Hearing this, Luo Xin burst into laughter, as if he had heard a big joke, Your Highness, I believe in the rest. I forgive Luo Xin for being rude. The things handed down from the ancestors, Your Highness can't just talk nonsense.

When he said this theory, Xiao Ming knew that he would encounter a lot of resistance. Changing the thinking of an era is much more difficult than establishing an industrial system.

Therefore, he never thought of expanding the popularization of this kind of knowledge, but just spread this advanced knowledge in the Bowen Academy first.

But looking at Luo Xin's appearance, he basically understood what would happen to him. This Luo Xin was only a military attache. If he told those pedantic scholars, wouldn't they want to fry the pot directly.

With a secret sigh in his heart, Xiao Ming said in his heart that popularizing scientific knowledge is a long way to go. He must be patient and withstand the pressure.

He said, Luoxin, you know a lot, then let me ask you, why after you aim at a target with your artillery and fire it, the projectile's landing point is always a little different.

Speaking of this question, Luo Xin hesitated: Your Highness, this is the same as bows and arrows. The bows and arrows that are shot will always fall, and the same is true for cannonballs. With more training, practice makes perfect.

You know it and don't know why. Xiao Ming said with a smile.

Luo Xin scratched his head, puzzled: What else is there?

Although Luo Xin also studied hard in the cold window, in Xiao Ming's eyes, what he has learned in ten years is only Chinese, so it is normal that the ancients' articles cannot be followed by future generations.

But in mathematics, physics and chemistry, Luo Xin is no different from an idiot.

The aiming of this artillery, of course, also has the principle of parabola. The current artillery basically uses the principle of three-point-one-line aiming. Every artillery has a sight and a rear sight.

But these crosshairs were just for emergencies at the time, and the head aiming was not accurate. The reason why he called Luo Xin was to teach him to calculate the parabola and adjust the crosshairs, so that in the future, the point where the crosshairs were aimed at was the landing point calculated by the parabola, and he could just hit it directly. .