The whole of East Asia is paying attention to the situation in Japan, but Zhu Cihong is already in the Jiangnan Ordnance General Bureau of Taiping Prefecture.

Not long ago, the Military Research Institute developed a batch of epoch-making equipment, breech guns and field guns.

After the division of civil and military affairs, there was a separate ordnance department under the military aircraft, and Zhao Jinglin, the marquis of the Shenji, served as the secretary, indicating that the imperial court attached great importance to it.

Jiangnan Ordnance Bureau, as the first comprehensive military factory in Daming and even in the world, has carefully selected nearly 1,000 craftsmen from various local ordnance bureaus in Daming to serve in the bureau.

When Zhu Cihong, accompanied by Zhao Jinglin, entered the artillery factory of the General Ordnance Administration, he saw signs of encouragement posted everywhere on the artillery factory, the heat inside was pressing, the iron paste was soaring, and all the craftsmen were busy, and it was a hot scene.

The head of this artillery factory was Count Li Dongfeng, who was extremely accomplished in rockets and artillery, and when Zhu Cihong saw him, the fifty-seven-year-old Count Li was wearing reading glasses, concentrating on reviewing a batch of artillery that had just been completed.

The older generation of scientific research workers are very conscientious, meticulous in building the country, and dedicating their youth to the dream of a strong country.

Even if Li Dongfeng was knighted and was close to the age of sixtieth, he has never forgotten his original intention for so many years, and has always worked in the front-line position of the artillery factory.

Li Dongfeng concentrated, Zhu Cihong and the others didn't notice when they came in, and after Zhao Jinglin reminded him, he hurriedly came over to greet him.

Seeing him salute respectfully, Zhu Cihong helped him up and said in a harmonious voice: "Shen Weibo, they are all nobles, why are you still staring at the inspection process in the artillery factory?" ”

Li Dongfeng lifted his glasses and replied: "Thank you Your Majesty for your concern, the minister was favored by His Majesty in this factory, and the minister did not dare to forget his original intention and mission." ”

Zhu Cihong took his hand and patted him gently: "Don't forget your original intention, keep your mission in mind, God Weibo is my model for the Ming Dynasty!" ”

He turned to Yang Shicong, a scholar of the Hanlin Academy who was driving behind him, and said, "Yang Qing, you go and write an article, the title is "Learning from Earl Li Dongfeng"!" ”

Yang Shicong, who has always wanted to be in the limelight, gladly responded, and almost patted his chest to ensure that this article would definitely satisfy Emperor Zhu and achieve the purpose of propaganda.

Next, Li Dongfeng took Zhu Cihong and others to inspect back and forth in the gun factory, and at the same time introduced Zhu Cihong's new product of the gun factory - Wuhuang cannon!

The only criterion for testing a new product is to test it!

Everyone came to the wide field behind the artillery factory, which was specially used to test military products, and when Zhu Cihong arrived, ten newly cast "Wuhuang Cannons" had been pulled in place.

"Artillery ready!"

When the emperor came to inspect in person, Li Dongfeng was in high spirits, and he commanded a series of commands to the artillerymen to aim at a series of targets in the distance.

Zhu Cihong took a closer look and was surprised to find that Li Dongfeng's so-called new cannon was much smaller than the Hongyi cannon, and the length of the entire cannon body was only about one meter, six or seven, and the caliber was not large.

According to Li Dongfeng's briefing, the weight of the gun body of these new guns is only 1,000 catties, the gun body, gun carriage and wheels weigh 2,200 catties, and the whole gun weighs 3,500 catties with the front trailer and the attached ammunition box.

Compared with the Hongyi heavy artillery weighing seven or eight thousand catties used in the past by the Ming Dynasty, the mobility is very strong, and the important thing is that the firing range of the new cannon is no worse than that of the Hongyi heavy artillery, and the shooting accuracy is far higher than that of the Hongyi cannon by several grades.

What made Zhu Cihong depressed was that he looked at these cannons very familiarly, and countless films, televisions and pictures from later generations appeared in his mind.

After thinking about it for a long time, he suddenly had an idea: Isn't this a Napoleon cannon?

In Li Dongfeng's shouting, these cannons were lined up, the muzzles of the black holes were constantly adjusted, and a pair of shiny cannon mirrors were set up on each cannon.

These cannon mirrors are made of glass, the world's earliest glass makers are the ancient Egyptians, commercial glass appeared in the twelfth century, and it is not a rare thing in the Ming Dynasty.

Prior to this, due to the limited level of craftsmanship, bubbles could not be avoided in colorless glass, and most of the telescopes and gun mirrors of the Ming army were made of crystal.

There are many colorless crystals produced in the East China Sea (northern Jiangsu) in Zhili, which can be picked up casually by farmers in the field, and it is a common plaything in the Shilin class in the south of the Yangtze River.

The raw materials for the production of gunshots are not a problem, but mainly in the design and grinding of lenses, which requires a high level of craftsmanship and optical knowledge.

However, Daming is full of talents, Princess Kunxing's concubine Sun Yunqiu is the most powerful optical expert in Daming, and the princess's mansion has also opened a chain of optical stores, all over Daming.

Under Sun Yunqiu's research, the technology of colorless glass was not only overcome, but also the process of making large pieces of glass was invented, and glass became an ordinary item in Ming society.

In the military industry, in order to meet the needs of making military telescopes, Sun Juma even made optical glass.

At this time, Zhu Cihong was holding a royal telescope made by Sun Yunqiu to watch the new cannon target.

The whole body of this royal telescope is made of yellow and clear metal, which is exquisitely manufactured, and can be lengthened and shortened to adjust the observation distance.

The civil and military ministers who were driving around also watched with binoculars, waiting for the test data.

The artillerymen who tested the guns were well-trained, the observers constantly reported the data, and the gunners adjusted the muzzles as they aimed.

Now the artillery in the Ming army is not an artillery soldier who can become an artillery after enlisting with a cannon and practicing a few shots, and each artillery soldier needs to master a lot of mathematical knowledge, such as geometric foundations, plane triangles, and spherical triangles.

In addition to geometry, it is also necessary to solve primary equations, systems of multivariate equations, quadratic equations, and preliminary applications in geometry, especially trigonometry.

At present, all the state-owned military schools in the Ming Dynasty have artillery majors, mathematics is the foundation, and mechanics in physics, and the navy's artillery also has to learn navigation, positioning, and other navigation knowledge.

Because of the artillery in these years, there is a fatal problem: you can't see the impact point.

Therefore, the artilleryman must learn to calculate, the angle and direction of the shot, the distance measurement, the ballistics, and so on.

Only when the artillery is calculated accurately can it be fought fast, and only when it is calculated quickly can it be fought quickly, and wherever it points on the battlefield, it is invincible!

As for these learnings, the Ming Dynasty has begun to popularize Western mathematics and Arabic numerals, and artillery is the first type of people to be taught.

I have to admit that at present, Western mathematics is slightly ahead of the Ming Dynasty, especially in the use of symbols and Arabic numerals, which is more concise and convenient than the use of Chinese characters and numbers in Ming mathematics.

Arabic numerals were invented by the Indians and brought to Europe by the Arabs, so they are called Arabic numerals.

As early as the eighth century, Arabic numerals were introduced to China along with Buddhism, but they were not accepted by the Chinese writing system at that time.

In the thirteenth century, it was brought into China by the first religion, but it was also unsuccessful, and in the Ming Dynasty in the sixteenth century, the cultural exchanges between the East and the West, Xu Guangqi and other scholars of the Ming Dynasty began to translate a large number of Western mathematical works, and they also translated the Arabic numerals in the book into Chinese characters and numbers, so that Chinese mathematics was difficult.

It was not until Zhu Cihong became emperor that mathematics was officially established in education, allowing students to formally learn Arabic numerals and Western mathematical formulas.

Last year, Louis XIV wrote a letter to Zhu Cihong, in which he also mentioned that he would send French mathematicians to the Ming Dynasty to communicate.

For example, the French mathematician Dezag, one of the founders of projective geometry, was a military engineer and architect, and had contacts with mathematicians such as Mason and Descartes. (Descartes was dead for several years)

There are also the French mathematician Fermat, who contributed to calculus, and Pascal, the mathematician and physicist who was once known as the "intermediate link between Archimedes and Newton". (Name of the pressure unit)

All three of them were famous mathematicians in the 17th century, and they were all in France, and some of them were not dead in their achievements, and they could be used when they came.

Unlike Newton, who is just eleven or twelve years old now, he belongs to the kind of shit in school, and it is useless to come to Daming, at most he will make some gadgets for the crown prince Zhu and His Majesty.

If the Ming Dynasty wants to build a complete mathematical system that surpasses the West, it is not something that can be replaced by introducing a few Arabic numerals, and it takes a lot of preparation.