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Chapter 973 Geography
Every month, Yang Zheng would take four or five days to give lectures in Taixue.

Today's Taixue is almost the same as the universities of later generations. It is located in the northeast of the imperial palace and covers an area larger than the imperial palace.

Students from all over the world, regardless of whether they are powerful or poor, can gather together.

Taixue is divided into three parts, one part is liberal arts and arts based on Confucianism, the other part is science and technology based on Mohism, and the other part is miscellaneous subjects such as medicine and alchemy.

Generally speaking, Confucianism still occupies the majority. After all, the inertia of hundreds of years cannot be reversed in a moment.

But the development of Mohism in recent years is gratifying.

He has never eaten pork but has seen pigs run. Yang Zheng has gone through nine years of compulsory education, and the contents of his stomach are still ahead of the times. As for many things, as long as he knows the general direction, he will be a smart person to move in this direction.

In fact, what Huaxia people lack is logical thinking.

Too many smart people put their minds in the wrong place.

After the Literature Museum translated various works of Euclid and Archimedes, and combined with Chinese mathematics, mathematics has become a separate subject, covering basic geometry, physics, astronomy and other knowledge.

There are also many scholars who specialize in these researches in Taixue.

It is very likely that what will be remembered in future history is not Yang Zheng's achievements, but also the establishment of this imperial school.

Yang Zheng's courses are mainly about Arabic numerals, heliocentric theory and other things.

"Actually, my Daqin is not big." Yang Zheng pointed to the huge world map.

On this map, there are ice sheets, oceans, grasslands, deserts, and mountains...

"Many of the foods we eat are imported from other places. Wheat was first produced in the area west of Hezhong, and it was introduced to China during the Xia and Shang Dynasties. Putao was first produced in the Mediterranean and then flowed into the Western Regions. Walnuts were produced in the Persian Plateau. Zhang Qian brought back... the southern rice that is widely planted in the Jiangnan area is also found in Linyi and Funan."

Yang Zheng's courses are generally very down-to-earth, starting from basic necessities of life.

"There are more exotic flowers and fruits in the west and south. If they can be introduced into Daqin, it will greatly enrich your table."

The students listened intently.

In the past, their courses were all indoctrination. They were either memorized by rote, or studied by themselves. The teachers rarely taught and explained a lot.

There are too few people like Yang Zheng who are so unique, so they can naturally attract many people.

Of course, the bigger reason is his identity.

As long as you are not stupid, you will come to listen to the lectures given by the emperor of the Great Qin Empire.

Yang Zheng also wanted to use this opportunity to instill a grander worldview into the Tai students.

As a country, Great Qin is indeed very big, conquering almost all the land that can be cultivated on a large scale in sight.

But as a civilization, Daqin's circle is actually not that big.

The size of civilizations such as Rome, Persia, and Tianzhu is not small.

The effect of the lecture was also quite good. Many people looked up and suddenly found that the northeast of Liaodong, if it were vast, the territory of the grassland runs through the entire continent, and it can directly lead to Rome from Mobei.

And the size of the ocean shocked everyone even more.

Yang Zheng pointed to the land of America on the other side of the ocean, "The land here is more fertile than our Central Plains. The land here produces corn, sweet potatoes, etc., which can reduce the hunger of our Chinese people."

Although corn and sweet potatoes do not taste good, they can always be used to feed pigs, cows, chickens and ducks.

"However, in order to reach this place, a stronger sea ship and better navigation skills are needed to cross the stormy waves on the ocean."

Compared with other places in the world, China's land is actually not too fertile.

People in many places do not worry about food and drink.

But it is precisely because of this that their civilization progresses slowly.

"Now our Great Qin has a population of less than 3000 million, food can naturally be maintained. Once the population increases, food will be the biggest challenge. Since I started my army, I have encountered droughts, floods, locust plagues, and plagues no less than a hundred times. The hardship of people's livelihood is shocking. , My lifelong wish, one is to unify China, and the other is to make the people no longer cry from hunger and cold, you are all the backbone of my great Qin, and the ideal is to take the common people and the country."

I'm a little confused today, and I don't know what to say.

But Tai students still listened intently.

They may be Daqin's best students and the future of Huaxia.

Among the 7000 people, as long as there are hundreds of people who listen to it, the future of Huaxia will be a different scene.

No, even if there are only 30 to [-] people who listen to it and take it as their life ambition, the future will be bright.

It's a pity that Yang Zheng is old now, otherwise he would go to the other side of the ocean himself.

After the course was taught, Yang Zheng went to visit the Academy of Navigation and Navigation.

In the current Great Qin, as long as there is no monarch like Sui Yangdi, a prosperous age is just around the corner.

Yang Zheng's only wish is to sail.

The future belongs to the sea, and this is China's millennium plan.

In fact, in ancient China, the sea was never really banned. The navigation technology of the Song and Ming Dynasties once led the world. Take this era as an example, the shipbuilding and navigation technology of Wu State has reached a considerable level. Come back in a circle.

When Sun Quan hooked up with Gongsun Yuan, he also traveled by sea.

However, Wu's navigation technology is not yet able to realize large-scale long-distance navigation.

This is not shipping along the coastline of Daqin, but sailing tens of thousands of miles across the ocean from Daqin to another continent.

But these years of continuous investment have begun to bear fruit.

The craftsmen use the mortise and tenon technique, and the spliced ​​keel is more resistant to wind and waves than the keel directly made of giant wood.

"This ship incorporates Sasanian shipbuilding techniques, and the technique of mortise and tenon is applied, so the whole ship does not need a single nail!" said Pei Xiu, Minister of the Ministry of Industry.

The world map in Taixue was created by Yang Zheng and him.

Pei Xiu not only has a very high attainment in drawing, but also is excellent in mechanics. When Ma Jun built a new type of catapult, Pei Xiu even came to him to discuss the mechanical principle.

Looking at the exquisite model in Pei Xiu's hands, Yang Zheng's eyes lit up, "In the past, it took 15 years for a keel to grow, and it took several years to process before it could be used. become."

Yang Zheng remembers a video from later generations. During the earthquake, the cement building collapsed, but the ancient wooden tenon structure was miraculously intact.

Mortise and tenon technique used in shipbuilding is definitely a great innovation.

In the future, shipbuilding will not be limited by the keel material.

Pei Xiu's level is quite high. According to Yang Zheng's request, she made models of warships, warships, horse ships, supply ships, rush ships, sentinel ships, etc., and basically built them on the scale of a fleet.

Soldiers can grow vegetables and raise horses on board.

The largest one, with three floors, is 32 feet long and 300 feet wide. According to Pei Xiu's words, this hull is majestic and invincible, with sails and rudders, no one can move without two or three hundred people!
(End of this chapter)