Zhu Youzhen said that Bi asked the imperial pharmacy to go to a few imperial doctors, and followed Xu Wenjue, the Duke of Wei, to pick up Bi Maokang to Nanjing.

The reason is that Xu Wenjue, the Duke of Wei, was asked to pick it up.

Naturally, it is because these Ming relatives always have to do something for the country, and they can't be raised in vain.

Although these relatives are all after the founding fathers, or have made outstanding contributions to the Ming Dynasty.

But most of these relatives are just gentlemen, so naturally they don't have much ability, but they are particular about life after all.

How to keep warm, how to treat the disease, how to bring a patient from Huizhou to Nanjing safely, may not be a big problem.

Xu Wenjue had just been imprisoned by Zhu Youzhen in the Imperial Prison for a period of time, where did he dare to have the frame of the first prince of the Ming Dynasty, so he naturally ran to Huizhou with his entourage.

It is said that Dongchang reported that the four famous doctors in Nanjing City were all taken to Huizhou by Xu Wenjue.

Zhu Youzhen was naturally quite satisfied with what he said.

Although Zhu Youzhen knew only a little about iron and steel smelting, firearms manufacturing, and gunpowder proportioning, he could only rely on the practitioners of this era for specific development and operation.

His experience in doing these experiments was not much better than these people.

Therefore, Zhu Youzhen needs characters like Song Yingxing and Bi Maokang very much.

Therefore, how long Bi Maokang can live, for Zhu Youzhen, means how many more years Daming can improve.

Song Yingxing was taken by Zhu Youzhen to the Dongnuan Pavilion of the Qianqing Palace.

This is Zhu Youzhen's study.

From Arabic numerals to English letters, to Chinese characters, pinyin letters, and the periodic law of elements, they were all made by Zhu You's inspectors and pasted on the wall.

Even the wooden globe and the miniature version of the Kunyu Wanguo map, as well as the wooden ironclad ship model and tank model and gun model made by Zhu Youzhen himself, are all here.

Song Yingxing was dumbfounded when he saw nature, and said that after His Majesty drove to Nanjing, he specialized in strange skills and tricks like the previous emperor, especially carpentry.

Although Song Yingxing had never seen these models, he could guess that they were ships and chariots, as well as firearms.

Zhu You ordered the inspector to give Song Yingxing a seat, and asked people to call the crown prince and King Yong Dingwang together.

Although his prince does not have the ability to govern now, as a royal child, it is naturally necessary to learn some natural sciences, otherwise he will have to be fooled by a group of Confucian scholars at that time.

For a while, the crown prince Zhu Cihong and King Yongwang Ding also came to Dongnuan Pavilion.

After the successful move to the south, Zhu Youzhen changed the names of his two smaller princes back to the vassal kings.

After all, the point of letting them be sealed in Hangzhou and Nanchang is no longer there.

Moreover, Zhu Youzhen had not yet made up his mind about whether the vassal king should be kept in a fief like a pig, so he stayed in Nanjing for the time being on the grounds that the two princes were young.

"You are now mainly in charge of steel smelting, and I will not be able to explain all of this to you like I did to Mengtong;

This character synonymous with one, two, three, four is an Arabic numeral, commonly used in the Western Regions, counting is more convenient than other words, the coins of the Central Bank of the Ming Dynasty also have this number, with your intelligence, you must have been able to distinguish which character is one, two, three, four;

These are the characters used by Westerners, you can use them for steel smelting, and I don't have time to tell you them one by one, and when the prince comes, I will ask him to read them to you, even if you know how to read them, then take some information back and memorize them yourself."

When Zhu Youzhen was talking, the crown prince Zhu Cihong, Yongwang Zhu Cijiong, and Dingwang Zhu Cizhao had also been brought in by Shi Kefa.

In his previous life, Zhu Youzhen did not play the role of a father, and he didn't know how to cultivate a good son, and now he basically cultivates them with the mentality of cultivating excellent heirs.

Just like a master leads an apprentice, an old man leads a newcomer.

"You also sit down, here, there are no monarchs and ministers, fathers and sons, I am just promoting the learning of Taizu, well, Song Shilang is right, this is called Shengxue."

Zhu Youzhen got up and picked up a brush and wrote a few words on a piece of rice paper: "The word "great knowledge" can be divided into social science and natural science, the so-called science, you can understand it as learning, those who study affairs are the study of society, and the study of the law of all things is natural science, the two types of learning complement each other, yin and yang complement each other, and one is indispensable;

I was in China pre-Qin was a hundred schools of thought, countless famous teachings, both of which were ahead of the world, and now, Confucianism is unified, a hundred schools of thought are deposed, especially the knowledge related to the national economy and people's livelihood is abandoned, so that our artillery is not as good as the West, and the musket is not as good as the West, have you ever thought that if this continues, a hundred years later, even if the Tartars do not destroy my Ming, will these Westerners with strong ships and cannons also ride on our heads? ”

Zhu Youzhen's words made Song Yingxing and the three princes stunned, and they now knew that there were Tartar thieves in the north, and when did they notice the Western Ocean.

But because it was in front of the emperor, Song Yingxing couldn't ask anything, and continued to wait for Zhu Youzhen to train.

"Since Song Qing is in charge of steel smelting, I will tell you about some chemical knowledge involved in steel smelting, natural science can roughly distinguish between arithmetic, physics, chemistry, and biology, and steel smelting mainly involves chemistry, the so-called chemistry naturally studies the changes of all things, such as this rice paper, I burned him to ashes, and then changed from paper to smoke and black charcoal."

"And our ironmaking is also to turn the impurities in the iron into smoke or invisible gas, let it escape, so that the iron becomes malleable steel, this is the chemical formula of iron, the main impurities in iron are carbon, as well as phosphorus, sulfur, these, when calcined with high fire, carbon and oxygen in the air can react and change to become carbon dioxide and water, at high temperatures, both are gases, and naturally escape."

As he spoke, Zhu Youzhen wrote down the chemical and reaction formulas of various substances, and also marked the three states of solid, liquid and gas.

For the crown prince Zhu Cihong and Yongwang Dingwang, who only listened to the teachers who had talked about the Four Books and the Five Classics and history books, they were like listening to the book of heaven.

And Song Yingxing was also at a loss, but he was also very interested, he never thought that the essential laws of ironmaking could be studied in this way, as if he had discovered another world.

You must know that he used to study anything by looking for answers from the ancient books of his predecessors or from other people's mouths, but now His Majesty's teaching has made him realize that he has gone into a misunderstanding before, and he has not started to analyze why iron needs to be calcined into steel before it can be used, and why the calcination effect is different, and the brittleness is different.

Zhu Youzhen took down the periodic table again and put it in front of Song Yingxing and others: "This table is the key to opening the science of chemistry, which covers almost all the material elements that we can see now, the so-called element is the general name of a class of atoms with the same nuclear charge number (that is, the number of protons in the nucleus), and the nuclear charge number, you may not understand, this has to start from the basic composition of matter......