The spring breeze blows the peach blossoms outside the imperial study, bringing a faint fragrance. Pen ~ fun ~ pavilion www.biquge.info

After sending off Princess Pingyang, Xiao Ming was lazy, a month has passed since he came back from Shanhaiguan, and Qingzhou is already full of spring.

Looking at the peach trees full of crimson flowers at sunset, Xiao Ming was ready to accept a day's government affairs and prepare to go back.

This is Qian Dafu trotting all the way over, "Your Majesty, Lu Tong and Chen Qi want to meet?" ”

"Them?" Xiao Ming showed a look of interest, and he said, "Let them come in, the two of them must have something new together." ”

"Yes, Your Majesty." Qian Dafu also had a smile on his face, in fact, he liked Chen Qi and others more than Pang Yukun, because every time they could bring good news.

Qian Dafu answered and went out, and after a while, Chen Qi and Lu Tong entered the imperial study.

The two looked excited, saluted and said, "Your Majesty, the fuse is finished." ”

"I said there must be good news for you." Xiao Ming said to Qian Dafu, and Qian Dafu was also smiling.

Chen Qi and Lu Tong glanced at each other with a smile, and Chen Qi took out the small stick at this time, "Your Majesty, this is the trigger mechanical fuse." ”

Lu Tong explained: "The success of this fuze is thanks to the fire cap, Xia Guan and Chen Qi thought about it and found that the principle of the fuse is similar to the fire cap, but it needs an external force to hit the thunder mercury, so we installed a firing pin outside the letter tube that hit the thunder mercury, as long as the external force hits the firing needle cap, the firing pin will hit the lightning mercury, and the thunder mercury will ignite the detonating powder in the fuse, thereby igniting the cannonball." ”

Carefully taking the fuse, Xiao Ming looked at it carefully and was very satisfied.

The fuse that Chen Qi gave him was a thin metal cylinder, and on the outside of the cylinder was a metal cap with a firing pin.

When you open the metal cap, you will see a thin spring inside, which is to ensure that the fuse does not explode due to misoperation.

In the middle of the spring is a fire cap-like ignition device, and when the firing pin cap is hit, the firing pin ignites the mercury downward, and the fuse causes the cannonball to explode.

In the past, the difficulty of the fuze was the spring and the mercury, but now Qingzhou Industry has been able to produce these two, and the manufacture of the fuze has also been successfully completed.

However, compared with modern fuzes, triggered fuzes have a relatively high error rate, and if the impact point is wrong, it is likely to cause a dud situation.

But even so, the birth of the fuse was a cross-generational thing, because the fuse could be used not only on artillery shells, but also on mines.

Thinking of this, Xiao Ming suddenly had a very evil idea in his heart, for a trigger fuse, the cannonball formed by the round hollow bullet is actually no different from a landmine.

It's just that it needs to be launched to hit, and the other needs to be stepped on with your feet, and the real difference is only the sensitivity, and you need to reduce the force of the spring.

He said, "You should immediately make a batch of hollow shells with fuses for the front line of Jinzhou City, and I will order Lu Fei to delay the siege of the city for a month." ”

Chen Qi and Lu Tong glanced at each other, and the evil look on Xiao Ming's face made the two of them tremble in their hearts, and the two responded yes.

Seeing off the two, Xiao Ming showed a weird smile on his face, in fact, the thing of landmines has long been recorded in the history books.

The earliest documents date back to 1130, when the Song Dynasty Jin army attacked Shaanzhou, when the Song army inflicted heavy casualties on the Jin army by using gunpowder cannons buried in the ground, that is, iron-clad mines.

In the early years of the Ming Dynasty, real mines using mechanical ignition devices appeared in the Ming Dynasty. According to the 1413 Jiao Yu's "Fire Dragon Sutra" a collection: "The bombing is made of pig iron, on an empty stomach, with a pestle of medicine, into a small bamboo tube, through the fire line inside, and through the fire trough with a long line outside, choose the only way to go, and bury dozens of holes in the pit, the medicine trough is connected to the steel wheel, the soil covers, so that the thief does not know, step on the engine, shake up, the iron is like flying, and the flames are soaring to the sky." ”

This kind of mine recorded in the classics has the characteristics of contemporary pressure mines, but this kind of mine uses a steel wheel and flint to rub the fire, like the principle of a lighter, and the reliability is still a bit poor.

In Europe, mines also began to appear in the fortified fortification battles of the 15th century, and it was only after the middle of the 19th century that various high explosives and detonation techniques appeared, and mines were used in large-scale warfare.

The fuzes made by Chen Qi and Lu Tong are basically close to those of the 19th century, and it is much more reliable to use such fuses to make mines.

In the process of attacking Pingzhou, the army of the Great Chongqing State has been constrained by cavalry, and this time it may be possible to use mines for experiments.

Thinking of this, Xiao Ming looked forward to it more and more.

After imagining it alone for a while, Xiao Ming returned to his dormitory before it was completely dark.

At this time, Fei Yue'er was following Xiao Yat, who was stumbling and toddler, and now Xiao Yat was one year and three months old, and it was time to learn to walk.

Seeing Xiao Ming coming, Xiao Yi's little face was full of smiles, and he threw out a crisp laugh and rushed towards Xiao Ming.

Cui Xue'er and Pothos Aster stood next to her, and they both smiled when they saw this.

"The emperor went to Shanhaiguan here, and after coming back, Xiao Yi liked to stick to the emperor more and more." Aster smiled.

Pothos said, "No, they don't pay attention to us now." ”

Cui Xueer is now familiar with the environment of the palace, playing mahjong with the three of them every day, and this relationship is also as close as sisters, without the depression when she first entered the palace.

She glanced at Xiao Ming, "It's just that the emperor is busy with government affairs, and he is rarely able to accompany Yi'er, so it's good to have a prince of the same age with him." ”

As soon as her words fell, both pothos and aster looked at Xiao Ming, their eyes bold and hot.

They and Xiao Ming have both been husband and wife, so naturally they are not as shy as a girl, and they take it for granted when they talk about it.

Fei Yue'er smiled when she heard this: "You are not ashamed one by one, don't frighten the emperor." ”

Xiao Ming was a little helpless, and now he finally realized the difference between a girl and a young woman, but it was really painful and happy.

After laughing with the four of them for a while, Xiao Ming noticed that Xiao Yi had a delicate jade pendant hanging around his neck, and he asked, "Where did this come from?" Why have I never seen it? ”

Fei Yue'er said: "Today, Princess Yong entered the palace to meet the Queen Mother, and later visited the concubine, and gave this jade pendant to Yi'er when she left. ”

"Princess Yong." Xiao Ming raised his eyebrows, "Princess Yong has always been on the Three Treasures Hall for nothing, so she must have asked for something when she came this time." ”

"The great victory in Pingzhou, the emperor defeated the barbarians, and his power in Dayu is unrivaled for a while, this King Yong must be unsure."

Xiao Ming nodded lightly, Princess Yong entered the palace at this time, and anyone with a discerning eye knows that it is no accident, since Princess Yong went to the Queen Mother first, it is estimated that the answer is in her.

When the two were talking, Cui Xue'er's eyes flickered and she lowered her head.