Zhao Dezhao is now under the supervision of the chief ordnance supervisor, and has been preparing for the research and improvement of ordnance in recent times.

In his previous life, as a student of the military academy, he also studied the weapon, and after he went back, he drew the style of the musket * gun and artillery on the paper, but although there are drawings to refer to, but according to the production process of the Song Dynasty and the smelting of metal, it is far from reaching the level of craftsmanship of later generations, and the measurement instrument standards of the Song Dynasty are also different from those of later generations, some craftsmen just rely on their own experience, and then roughly estimate how big this object is, so Zhao Dezhao urgently designed several sets of measuring rulers, This is completely made according to the standards of later generations, and after a complete set of drawings, Zhao Dezhao looked at his results with satisfaction.

The most suitable casting material for making guns is copper, if copper is used, the production cost is high, and copper is now the most lacking in the Great Song Dynasty, the Great Song Dynasty takes copper as money, for the common people, copper is equivalent to money, and the copper money in the Great Song Dynasty is not enough, and even some places have to cast iron money to circulate, which shows how the Great Song Dynasty is short of copper, if it is used to make weapons, I am afraid that it will not take a few years for the entire Great Song Dynasty to go bankrupt. And now Zhao Dezhao hopes that Wan Song and they may be able to find the minerals he needs to make up for the lack of copper to a certain extent.

Of course, iron can also be used, but the quality requirements for iron are extremely high, and the production level of the Great Song Dynasty is far from reaching. Nowadays, it is not realistic to make muskets or cannons, but it can also be tried by the craftsmen of the Ordnance Prison.

Zhao Dezhao showed it to Wei Pi, Wei Pi looked at the style of the musket and artillery on the picture, looked left and left, and looked at it, he didn't know what this thing was, he said suspiciously: "Your Highness, what is this, the minister has never seen it?" ”

Zhao Dezhao touched his head and said slightly apologetically: "Uh...... This thing is a musket and artillery, and in fact it is also a weapon for fighting against the enemy, as long as it is ......"

Zhao Dezhao told Wei Pi about it, and Wei Pi suddenly realized that this thing was a firearm, and gunpowder filled this thing, and then ....... Wei Pi picked up another drawing, took his little finger and gestured, and wondered: "Your Highness, what is this?" This thing is similar to the minister's half-truncated little finger, with a pointed upper head and a flat lower ......."

"Oh!" Zhao Dezhao almost forgot to introduce this thing, it is the focus of the fire * gun fire, "This thing is the fire * gun used as a filling ammunition for firing, you see that the rear end of the fire is usually cylindrical, the front part is conical, generally made of lead, steel or lead core steel shell. I don't know if this thing can be made according to the level of the craftsmen of the Great Song Dynasty Weapons Prison, and its inner part is hollow, which is used to fill gunpowder, fill this thing into the musket gun, and then pull the launcher below, just like the bow and arrow full of strings, and then release, the bullet will hit the target. ”

However, Zhao Dezhao knows that the production process of the warhead is not simple, just by seeing this structure, there are all

The projectile, the cartridge (cartridge case), the propellant * charge and the fire cap (bottom * fire) are constructed.

As for the principle of its launch, Wei Pi's current appearance is like a primary school student in the school, naturally he can't understand the meaning expressed by Zhao Dezhao, and Zhao Dezhao is not very easy to explain, just said: "The principle is that the bottom * fire burns quickly and ignites the cartridge, and then detonates the gunpowder in an instant, helps it squeeze out from the inside, and then pushes it forward, and then shoots it from the inside to the outside with a whoosh." ”

Then Zhao Dezhao mentioned rifling, which is also a compound line, those spiral concave and convex lines in the chamber. The concave part is called the yin rifling, and the raised part is called the yang rifling. The function of rifling is to make the warhead rotate and move to maintain flight stability, improve hit accuracy and increase penetrating force. For this, Zhao Dezhao deliberately asked Wei Pi to pay attention to it when he made it.

"Of course, there is rifling in it, and you ask them to pay special attention to the production inside, which is the spiral concave and convex line in the chamber of the gun." Zhao Dezhao said.

Wei Pi nodded in surprise, he didn't expect a small object to be so exquisite, although he couldn't understand what Zhao Dezhao said, but Zhao Dezhao mentioned it so deliberately, it must be reasonable.

After talking about this, Zhao Dezhao made a ruler for him, and then asked him to instruct his subordinates to make a qualified and accurate ruler.

Then Zhao Dezhao asked Wei Pi to instruct him to temporarily make a sample of other materials as a reference object, and specially instructed Wei Pi craftsmen to make this thing to ensure confidentiality, and then let the craftsmen divide labor to make various parts of muskets and bullets, so as to ensure confidentiality.

Wei Pi nodded, according to Zhao Dezhao's instructions to go down to do things, three days later the ruler was made, Zhao Dezhao looked at the familiar ruler, nodded with satisfaction, for the production of this thing is simple, but the current craftsmen have too many thoughts, and also carved exquisite patterns on the back of the ruler, I really don't know what they think, think that this king made this thing for fun and viewing.

After seven days of work, a large number of parts made of different materials were placed in front of Zhao Dezhao, Zhao Dezhao had not touched the parts of a gun for a long time, and in his previous life in the military academy, it was only as part of his homework, dismantling and reassembling, dismantling and reassembling, so he was very familiar with the parts of guns.

When he saw these parts, his hands itched again, and then in a moment, a model of a gun was displayed in front of him, but this was only a model, and the study of the musket * gun still had to be studied.

And Zhao Dezhao is still not very satisfied with this, but there is no way, he just asked the craftsmen to help him study it, and now he guides them to complete it, which is just the role of a staff officer. Zhao Dezhao believes that with the research of craftsmen, he will be able to make it one day.

At this moment, a craftsman outside the house shouted: "The official family is here!" ”

It was Zhao Kuangyin who personally inspected the ordnance superintendent, and he saw Zhao Dezhao staring at an object in his hand, and this object was not much bigger than the palm of his hand, he had never seen this thing, and then he wondered: "Zhao'er, what are you doing, why are you staring at this thing, I don't know what this thing is for?" ”

"Daddy, this is a child's fire* gun, this is the smallest, it's a pistol, and the next few are large muskets, all of which are used on the battlefield, but—" Zhao Dezhao sighed.

"Just what?" Zhao Kuangyin was still thinking about it, if the Great Song Dynasty army had one person, why worry about the injustice of the world, and the four Yi would not be convinced, and asked.

"It's just that this thing is still a sample at the moment, and this thing can be made of copper with good use, and a lot of copper is needed, but my Great Song Dynasty lacks copper, and all the expenses are on copper coins and utensils.

"Zhao'er, the weapon matter takes a long time, it can't be done overnight, with Zhao'er's ambition, Daddy has to thank Zhao'er for the people."

"Daddy, gunpowder is a big matter, and in the future, it will be used in a large number of wars, it must be in the hands of the imperial court, and it must not be used by enemy countries or private individuals, otherwise it will be the people of Li who will suffer in the end!"

"What Zhao'er said is extremely true!" Zhao Kuangyin looked at his son with satisfaction, and he found that he had grown up a lot.

"Daddy, although the level of craftsmen in my Great Song Dynasty is not good now, and I can only use precious copper to make weapons, but Zhao'er believes that in the future, when the level of craftsmen improves, I will be able to use a large number of cheap iron to make weapons such as muskets and artillery."

Zhao Kuangyin has personally seen the power of gunpowder since that day, he is confident that if the Great Song Dynasty is equipped with these, then the world will be invincible, and at present, the various Jiedu envoys still have a large number of troops.

"By the way, Zhao'er, there is still some copper in the warehouse, and I don't know if it is enough, Daddy can try to allocate some to you, and then let the craftsmen temporarily use these copper to make musk * guns and cannons, and one day, Dad believes that he can use iron to make them, and then my Great Song Army will be able to have large-scale * guns and artillery."

"That's great, Daddy, Zhao'er can only do this for the time being, thank you Daddy! However, the matter of firearms takes a lot of time, and Zhao'er doesn't have much to do at the moment, but Zhao'er knows other miscellaneous things, and maybe he can solve a lot of problems for his father! ”

Zhao Dezhao actually remembered other objects in the army's combat at this time, such as the military sand table, compass, telescope, divine arm bow, thistle, etc., as well as the improvement of other weapons, which can be improved on the basis of the existing weapons in the Great Song Dynasty today, and increase the power of some weapons, so that the time is short and the investment is less, and the soldiers who use the weapons can also adapt to the improved weapons faster, and they don't have to relearn a weapon that they are unfamiliar with, which can be said to be the most suitable for the situation of the Great Song Dynasty.

"Daddy believes in Zhao'er's talent, Daddy has returned to the palace in advance now, the ordnance supervisor will take his time, Daddy is very relieved to hand over the weapon to you!"

After all, the social productivity and scientific and technological development level of the Great Song Dynasty have not reached the development level of later generations, but everything has to be done, and Zhao Dezhao believes that there must be talented people in the Great Song Dynasty, and there will be talents like Edison.

……

In the next few days, Zhao Dezhao went to the ordnance supervision and inspection work every morning, and then instructed the craftsmen to operate, first easy and then difficult, he had already instructed the personnel to first draw the entire terrain of Kaifeng on the map, and then make a sand table with soil and other things, and then the craftsman looked at the entire Kaifeng vividly appeared on the sand table, and suddenly felt that His Royal Highness King Liang was talented.

After praising his son, Zhao Kuangyin ordered the people who drew the map to the terrain drawn in various parts of the Great Song Dynasty, and the terroir was all presented, and then the craftsmen made the sand table, and then prepared this thing for the battle.

In addition to the sand table, there is also a telescope, and the glass of the telescope is indeed a problem, and Zhao Dezhao later handed over the purification of the glass to the craftsman who will be the supervisor, and now the glass [glaze] is not very transparent and has variegation, so he went to the supervisor and instructed the craftsman to purify the glass.

But as soon as this proposal was proposed, the craftsmen were helpless, and they didn't know how to get transparent glass, and the price of glass in the Great Song Dynasty was high, very rare, and basically came in from the Western Regions.

Glass was known by a variety of names in ancient China. Among them, the pronunciation is very similar, there are Liuli, Liuli, Biliuli, Luli, Boli, Liulin, as well as five-color jade, medicinal jade, jar jade, water jade, water essence and so on. There are also ancient books that give glass the reputation of "bright moon" and "luminous light".

For this matter, Zhao Dezhao also went to the National History Museum to find information, and also went to the kiln factory where porcelain was fired to investigate, and by the way, he also recalled some of the knowledge of making glass that he learned outside of class in later generations.

Zhao Dezhao probably knows some of the raw materials: quartz sand (SiO2), soda ash (Na2CO3), calcite (CaO), limestone (CaCO3), boron compounds (B2O3), barium carbonate (BaCO3).

Auxiliary raw materials: orange agent, colorant, emulsion. Fluxing.

Then he asked the craftsman to experiment, but the effect was not obvious, so he kept letting people experiment there.

……

Finally the New Year, this year is very compact, fortunately, the master of the prison has completed some of the baby utensils requested by Zhao Dezhao before the New Year, and then Zhao Dezhao ordered all these things to be moved into the Renming Palace, He Shi saw these strange things, very surprised. Immediately Zhao Dezhao explained, and He understood the purpose of this thing, so he happily accepted it.