There were no ripples in the boudoir, Princess Jiaxing thought about it and went downstairs, and did not ask the little girl on duty, and told the palace people not to follow, only brought a personal palace maid, and passed through a moon door open in the east flower wall.

As soon as I came out, there was suddenly a sparkling flat lake in front of me, covering an area of about ten acres, some waterfowl raised in the lake swam leisurely on the water, and a building was built on the island in the middle of the lake.

From a distance, the area in front of the island is full of willows, and there are verandahs on both sides of the south, which are blocked by flower walls. And on the opposite side of the Pinghu Lake is an octagonal pavilion, half of the willow is faintly exposed, the pavilion is dozens of steps away from the west, a fishing platform protrudes under the corridor, the red wall and green window, the carved railing is made of stone.

The island in the middle of the lake is located in the northeast of a white stone railing white stone bridge, straight to the opposite bank, Jiaxing knew that no one lived here before, since the ripples came, all the nearby buildings were unceremoniously occupied by her.

Tilting his head, Jiaxing said to himself: "Shall we live on the island?" ”

The palace maid shook her head and said, "There is water on all sides, it's too dangerous, and I won't agree." ”

"This won't work, that won't work." Jiaxing was a little angry, "Am I still not a princess?" Anyone can point fingers at me. ”

"Hee-hee!" The palace maid smiled, "Who let His Royal Highness not leave the cabinet yet, besides, even His Majesty is managed by a group of people all day long, there are eunuchs in the palace, there are ministers outside the palace, what they say and do, they have to be recorded, no matter how big or small, why do they all love to come to Xu's mansion?" The only way to be here is to be truly unrestrained, you see, there is not even a figure around us. ”

Jiaxing also smiled: "No wonder my father lost his temper at every turn this year, naturally because my uncle was not at home." Have you noticed? Whether it is a eunuch or a minister, everyone is afraid of their uncle's three points, but no one is afraid of his father, and last night he lamented that being an emperor was not happy at all. ”

The palace maid said: "The queen said that if you have no desire, you are strong, and Lord Xu is like this." He is a very popular minister, but he is willing not to be an official, not in power, when he encounters something that dares to speak out, there are evil eunuchs who do evil, no matter who is behind him, he dares to order people to beat him to death, didn't His Majesty say that he is the eight wise kings of the Ming Dynasty. ”

Jiaxing suddenly said: "Uncle also has uncle's hardships, otherwise why didn't he return to Beijing for nearly two years, fortunately, the royal brother wrote to say that he likes his uncle more and more." ”

"What do you mean, Your Highness?" The palace maid didn't understand.

"It's nothing, let's go." After Jiaxing finished speaking, he walked forward.

The cloister in this area. It is all circular to go through, specially consulted the emperor, designed into a special nine-curved corridor for the royal family, a total of nine twists and turns, the outside of the corridor is also a corridor, connecting the scattered buildings into a whole, no wonder the ripples are going to occupy it, it was originally designed for the next generation of ladies of the Xu family.

At this time, the water in the lake is calm, and the weather in October. Everything is starting to go down.

Princess Jiaxing did not land on the island, but walked through several artificial caves, walked through the banana bamboo forest, and entered a gate. It is three large rooms, four wings on both sides, and two Xifu begonias are planted in the center of the courtyard.

As Ripple moved in, Xu Ye and Xiao Yezi also moved in. This is Xu Ye's residence, and Xiao Yezi lives in the rainbow building in the back.

Through the glass window, you can see that the room is full of servants. There were also little girls walking around under the corridor, Jiaxing knew that she had found the right place, and gestured to the subordinates, signaling them not to make a noise, and went straight into the house.

The room was unusually warm, Princess Jiaxing took off her cloak, and several people were chatting in a circle.

Ma Yu, who had his back to him, said: "Gunpowder was invented in our country, and it gradually spread to the countries of the Western Regions, Tianzhu, Dashi and Persia. During the period of Song Zhezong, China was also the first to invent artillery weapons, but the craftsmanship was very coarse. In the part of the history book about foreign countries, the Persian king Alexander attacked Tianzhu and heard that there were firearms in his military camp, so he secretly sent spies to inquire, but he didn't find anything.

In the past few years, the people sent to Tianzhu have said that there are not even books there, there are many small countries and it is very chaotic, there are strong enemies in the north, but the southern states are drunk and dreaming of death, there are countless dialects in various places, there is no unified weights and measures, there is no imperial examination, there are no books and texts, and even Sanskrit books are difficult to find, so I think Tianzhu did not invent firearms. ”

Jiaxing was confused when he heard it, and saw Xu Ye sitting on the side and said: "Our group has specially verified that in terms of cultural inheritance, Europe and Persia are much stronger than Tianzhu, and my father said that the ancient Indian civilization that is no less than the Chinese civilization has long disappeared." When it comes to cultural inheritance, Venice can be called the crown of Europe, unlike the Persian countries and European countries that have lost many precious books due to years of war, but unfortunately the power of the Holy See is too great, and it has burned down the library several times.

In the fifth dynasty, the Roman Empire used Greekology to create a kind of machine qì rocket, sealed the oil in a box, and the box was placed in a bronze tool, and sent out with a catapult, even if it was a firearm, where can it be compared with our China? ”

"That's nature." Ma Yu looked proud.

Sitting opposite him was Ripple, beckoning to Jiaxing and asking, "You male students talk about muskets and artillery, are they really so powerful?" ”

Ma Yu was shocked to see someone, and quickly got up to salute, Jiaxing returned the salute generously, walked to the side of the ripples and sat down, looked at the young man in front of him curiously, and picked up the age, Ma Yu was four or five years older than them, and he was already an adult.

Speaking of firearms, Xu Ye counted the treasures and said: "In the twenty-ninth year of Hongwu, General Fengyang took the lead in building twenty new cannons and began to study the artillery method. In less than three years, the craftsman built a light cannon, using thin copper as the bore, leather on the outside, and iron chains on the outside, firing two-pound stone bullets with gunpowder inside. In the same year, Fujian also cast a new type of iron cannon, but it was too cumbersome and required twenty horses to pull it to move.

A few years later, a cannon factory was set up in Beiping, and a very flexible short cannon was soon developed, which was the beginning of the horse-drawn cannon, and the earliest flowering shells were used at that time, which was different from now. Hehe! My dad came up with the Fu Line Cannon. ”

Jiaxing interjected and asked, "What is the Fu Line?" ”

Ma Yu explained: "The path of the bullet in the cannon has a long and thick line groove, which Shibo calls the Fu line, which will greatly improve the range and accuracy, so the artillery at that time has already set up a line of sights, but it is necessary to fill the muzzle with gunpowder. Speaking of which, Shibo is a genius in firearms, and has successively proposed the method of post-boring charge, which is the case with most artillery today. It is called General Xu Cannon in the army. ”

Xu Ye said proudly: "You don't know yet, right? Last year, the Beijing Artillery Factory developed the method of smelting wrought iron and copper, and created a kind of cannon, with a maximum range of more than 3,600 feet, more than 1,000 meters, and a weight of 800 catties. But my father was still not satisfied with this, and urged 300 skilled craftsmen to work day and night to develop a cannon, which is said to be able to fire 300 shells a minute, and a huge cannon with a range of at least 40 miles. If it can be successfully developed, the iron cavalry on the grassland will no longer be the opponent of my Ming Dynasty. ”

Ma Yu hurriedly asked: "Shibo has a new type of musket that does not need to be loaded with gunpowder, what is the principle?" ”

Xu Ye scratched his head and said: "I don't know much, I only know that there are two kinds of explosives, one is the time primer and the other is the phase attack charge, and there seems to be a small steel needle in the bullet, or it is loaded on the gun." As soon as the bullet moved, the steel needle fought fiercely in the barrel of the gun, causing the two gunpowders to collide and explode. Shoot the projectile. ”

Jiaxing said admiringly: "You two know so much, how do you know where the cannon falls?" ”

"It's easy." Xu Ye knew more about this than Ma Yu, who specialized in the Four Books and Five Classics, and said without thinking: "It is a parabolic algorithm, and there is a total of fifteen degrees between the two heights and the lower levels. From top to bottom. To a certain limit of parabolic resistance, you have to go a few ways, and then pass from this limit from top to bottom. There are also some roads.

If it is fifteen degrees away, it is within the range of short-range artillery, because the human eyesight is far less than 9,000 feet, and the surveyors use telescopes to measure, and I don't know much about the specific measurements. ”

Ma Yu asked: "The Shenji battalion says that the weapons are the best, so how is the artillery battalion set up?" ”

Xu Ye said: "The artillery battalion is equipped with all kinds of artillery and ammunition, and the artillery of the Shenji battalion is divided into five battalions, front, center, left and right, eighteen teams, with 18,630 soldiers, in addition to 20 flying transport troops with the team, 15 slow transport troops, three heavy transport troops attacking the fortress pass of the city, and 20,000 horses of all kinds. However, I know better about Liaodong, there are more than 7,400 large and small officers, more than 2,500 soldiers and lieutenants, 120,000 soldiers, more than 38,800 war horses, more than 380 artillery pieces of various types, and reservists, more than 58,000 first-class military households, about 40,000 second-class soldiers, a small number, and 140,000 third-class soldiers. There are 13 admirals of the navy division and more than 65,000 officers and soldiers of the navy. ”

Not to mention that Jiaxing listened in a daze, the ripples were as confused as Xiaoyezi, and Ma Yu didn't know what was going on here, in fact, even Xu Ye himself only knew the surface, most of them were heard from the fourth uncle Xu Song and his uncle Mu Yi, and they didn't know the essentials, and this was the top military secret of the Ming Dynasty.

It can be said that in terms of numbers, the total number of soldiers in Liaodong has been decreasing year after year, and there is nothing to be seen, but in fact, the number of soldiers is the highest in the country, and the number of officers and soldiers has reached the proportion of the modern army, and you must know that the total strength of the modern British Empire is almost the same as that of Liaodong now, and the 60,000 naval divisions have long exceeded the needs of Liaodong itself, and are facing the whole world.

The girl was not interested in this, but Ma Yu was full of interest and continued to ask, but unfortunately Xu Ye didn't know much.

Regarding the previous question, Jiaxing said: "Several miles away, I want to hit two and a half miles, how to calculate?" ”

"I can't figure it out." Xu Ye said with a smile: "If you should follow the geometric formula, set up a pole, make a centering, and say how far this cannon can hit the farthest 45 degrees, how high the centering is, how many zhang back, and how many points higher the centering at this time, I will calculate." ”

Jiaxing didn't believe that he would calculate, and the ripples exchanged ears, Xiao Yezi went to find the latest "artillery foundation", ordered someone to get a piece of paper, and wrote: A red light is hung on the pole of the city tower, and this lamp should be hit by the farthest artillery at 45 degrees, because the lamp was measured 12 minutes at the gun position with a rod first, and then retreated 78 zhang; I have to test the light for eleven points, and with this ratio to seek knowledge, how can I hit it?

Ma Yu saw that the whole person was dizzy, shook his head and said: "This is a university question, and when I got it to the Guozi Prison, few people in the custody of a thousand people can answer, or maybe not one." ”

"That's your country's eunuch." Xiao Yezi said softly, "Although it's difficult, it's hard to stop Ye'er, he studied at the Liaodong Army Academy for half a year last year." ”

Ma Yu still shook his head and said, "I don't believe it." This topic is like a book from heaven to him, and he doesn't believe that Xu Ye can do it at a young age.

Who knew that Xu Ye repeatedly wrote some formulas on the paper, and finally wrote: The red light is 859 zhang away from the gun position, three zhang higher than the flat ground, and then the parabola theory is pushed forward, and the transverse gun axis is 11 degrees and 40 and a half above the ground, that is, the gun axis is measured to 11 degrees and 40 and a half, and it can be hit.

Princess Jiaxing looked at the answer in the book and exclaimed, "That's right." ”

Ma Yu was only dumbfounded, and said, "Your current knowledge, I really want to throw myself to the ground." ”

Xu Ye said: "These are all formulas calculated by teachers and brothers according to the writings of the sages, we are picking up ready-made living and learning to use, otherwise where can it be so easy." ”

Jiaxing also admired it very much, and secretly said that everyone is generally old, why is he so far away from them?

This made her plan to live in the Xu family even more, and turned her head and asked Ripples: "I also want to live here, where do you say I should choose?" ”

Ripple said excitedly: "This side leads the water of Yanque Lake, flows north into the garden, to my ripple small residence, through the white stone bridge to the west, how about the island in the lake?" Or Sister Ye's rainbow building, the flowing water through the inclined bridge to the southwest into a pool, is the Xu family's Moon Lake, there are Xiaozhu and Linglong Pavilion nearby, but I prefer Caiyun Villa, the yard is spacious, and there are a lot of side rooms, enough to place the people around you, do you know the pair there? ”

"I don't know, you can say it quickly." Jiaxing can't wait to urge.

Ripple smiled: "When there is a flow of water, it is used for eye washing, and there is no dust to borrow the scriptures everywhere." ”

Jiaxing shouted: "It's a good place where there is no dust when there is a flow of water, take me to have a look." (To be continued......)