The spring breeze blows the peach blossom outside the imperial study, bringing a light fragrance.
After seeing off Princess Pingyang, Xiao Ming is a bit lazy. A month has passed since he came back from Shanhaiguan. Qingzhou is full of spring.
Looking at the peach trees full of scarlet flowers in the west of the sunset, Xiao Ming is ready to accept the day's government affairs and go back.
This is Qian Dafu trotting over all the way, "emperor, Lu Tong and Chen Qi ask to see you?"
"They?" Xiao Ming showed a look of great interest, he said: "let them in, they must have something new together."
"Yes, Emperor." Qian Dafu also has a smile on his face. In fact, he likes Chen Qi better than Pang Yukun, because every time they bring good news.
Qian Dafu should go out, and after a while Chen Qi and Lu Tong enter the imperial study.
Two people look excited, after the ceremony said: "emperor, fuse has become."
"I said that you must have good news." Xiao Ming told Qian Dafu that he was also smiling.
Chen Qi and Lu Tong look at each other with a smile. Chen Qi then takes out this small stick like object, "emperor, this is the trigger type mechanical fuse."
Lu Tong explained: "the success of this fuze is also due to the cap. After thinking about it, Xiaguan and Chen Qi found that the principle of the fuze is similar to that of the cap, but it only needs an external force to impact the mercury. So we installed a strike pin outside the fuse that hit the mercury. As long as the external force impacts the cap, the strike pin will impact the mercury, and the Mercury will ignite again The detonating powder in the fuse ignites the shell. "
Taking over the fuse carefully, Xiao Ming looks at it carefully and is very satisfied.
The fuse Chen Qi gave him was a very thin metal cylinder. On the outside of the cylinder was a metal cap with a needle.
Open the metal cap and you will see a thin spring inside. This is to ensure that the fuse will not explode due to misoperation.
In the middle of the spring is the ignition device similar to the cap. When the cap is hit, the pin will ignite the mercury. At this time, the fuse will make the shell explode.
In the past, the difficulties of fuze were spring and mercury. Now Qingzhou industry has been able to produce these two kinds of things, and the manufacture of fuze has been successfully completed.
However, compared with the modern fuze, the error rate of trigger fuze is relatively high. If the impact point is not right, it is likely to cause dud.
But even so, the birth of fuze is cross era, because fuze can be used not only in shells, but also in mines.
Thinking of this, Xiao Ming suddenly had a very evil idea in his heart. For the trigger fuze, the shell formed by the round hollow bomb is no different from the mine.
It's just that one needs to be launched and impacted, and the other needs to be stepped on. The real difference is only the sensitivity. It needs to reduce the force of the spring.
He said: "you will immediately build a batch of hollow shells with fuses for the front line of Jinzhou City. I will order Lu Fei to attack the city one month later."
Chen Qi and Lu Tong look at each other. The evil look on Xiao Ming's face makes their hearts tremble. They answer.
Seeing them off, Xiao Ming showed a strange smile on his face. In fact, mines have long been recorded in historical books, and the earliest documents can be traced back to 1130, when the Jin army of the Song Dynasty attacked Shanzhou. At that time, the song army used gunpowder guns buried on the ground, that is, iron shell mines, which caused heavy casualties to the Jin army.
In the early years of Ming Dynasty, real mines with mechanical ignition devices appeared in Daming. According to the first collection of fire dragon classic written by Jiao Yu in 1413, it is said: "the explosive processing is made of pig iron, empty stomach, put medicine pestle solid, into a small bamboo tube, through the fire wire in the inside, external use long line through the fire trough, choose the only way for the bandits, and bury dozens of them in the pit. The medicine trough is connected with the steel wheel, covered with soil, so that the thieves do not know, step on the engine, shake up, iron pieces fly, and the flame soars to the sky."
This kind of mine recorded in ancient books has the characteristics of contemporary pressure mine, but this kind of mine uses steel wheel and flint friction to ignite, such as the principle of lighter, the reliability is still a little poor.
In Europe, however, mines began to appear in the fortress defense war in the 15th century. It was only after the mid-19th century that mines were used in large-scale wars with the emergence of various high explosives and detonation technologies.
Now the fuzes made by Chen Qi and Lu Tong are basically close to those made in the 19th century. It is much more reliable to make mines with such fuzes.
In the process of attacking Pingzhou, the army of the state of Chongqing has been constrained by cavalry. This time, maybe we can do some experiments with mines.
Thinking of this, Xiao Ming looks forward to it more and more.
After imagining for a while, Xiao Ming went back to his bedroom before it was dark.
At this time, Fei yue'er is following Xiao Yi who is stumbling and learning to walk. Now Xiao Yi is one year old and three months old. It's time to learn to walk.
Seeing Xiao Ming coming, Xiao Yi's small face is full of smiles and sends out clear laughter to Xiao Ming.
Cui Xueer and aster stand beside each other, smiling at each other."The emperor went to Shanhaiguan. After he came back, Xiao Yi liked to stick to the emperor more and more." Aster is smiling.
"It's not," said lvluo. "Now they don't care about us."
Cui Xueer is now familiar with the environment of the imperial palace. She plays mahjong with three people every day. Her feelings are as close as sisters. She doesn't have the melancholy when she first entered the palace.
She glanced at Xiao Ming, "it's just that the emperor is busy in government affairs and seldom can accompany Yi'er. It's good to have a prince of the same age."
As soon as her voice fell, lvluo and aster all looked at Xiao Ming with bold and hot eyes.
Both of them and Xiao Ming have been married before. Naturally, they are not as shy as girls. Speaking of this, they take it for granted.
Fei yue'er said with a smile: "you are not shy. Don't scare the emperor."
Xiao Ming has some helplessness. Now he finally realizes the difference between a young girl and a young woman, but it's really painful and happy.
After laughing with the four for a while, Xiao Ming noticed that a beautiful jade pendant was hanging around Xiao Yi's neck. He asked, "where did this come from? Why have I never seen it before? "
Fei yue'er said: "today, Princess Yong went to the palace to visit the Empress Dowager. Later, she visited her concubine and gave the jade pendant to Yi'er when she left."
"Princess Yong." Xiao Ming raised his eyebrows and said, "Princess Yong always goes to the three treasures hall for everything. This time, she must have something to ask for."
"In the great victory of Pingzhou, the emperor defeated the barbarians and had the same prestige in Dayu for a while. King Yong must have been uneasy."
Xiao Ming nodded his head slightly. It was no accident that Princess Yong entered the palace at this time. Since Princess Yong went to the Empress Dowager first, it is estimated that the answer lies with her.
When they talk, Cui Xueer's eyes twinkle and lowers her head.
www.novelhall.com , the fastest update of the webnovel!