Back to the door?

Qian Jingyi said: "No. ”

"Grandfather, what's important?"

Qian Jingyi shook her head: "I haven't thought about whether to let you know yet." The shadow girl gave her a piece of paper, and what was written on the paper was too mysterious. Maybe...... Heaven! Stand down. ”

Can a piece of paper write the way of heaven?

Qian Hongxuan and Qian Haohuan both expressed doubts, but Qian Jingyi was the head of the family, the lord, and their father and grandfather, and the etiquette of the Great Song Dynasty did not allow them to doubt and refute.

After retreating twice, Qian Jingyi closed his eyes, and his mind was full of the periodic table.

He didn't know all the words written on it, but he knew some of them.

He remembered that the number twenty-six was iron, the twenty-ninth was bronze, and the seventy-ninth was gold. Also, the latest one that has just been named, it used to be called white lead, and now it is called zinc, and the number is thirty.

Is this all the things under heaven?

There is metal next to the word gold, stone next to the word stone, there is gas at the beginning of the word, and there is water at the bottom of the word water, which is in line with the way of heaven, but, metal, wood, water, fire, earth. Why is there no wood and fire?

Qian Jingyi thought about finding a time to talk to Han Jiang.

Who is it, and the number on these numbers. Who is it! What kind of regulations are used to righteousness all things in the world?

So, what is man? What is wood? What is fire?

In an instant, too many questions poured out of Qian Jingyi's mind.

Only one thing he agreed with was that it was correct that he had only given the paper to himself, and that even the draft had been burned. With the current Great Song people's cognition of all things, they can't understand the content on this paper. or it will harm people, or it will arouse the suspicion of the world's scholars about Han Jiang.

But Qian believes that the content of this piece of paper is true.

Thinking of this, Qian Jingyi shook the bell in his hand, and the Qian family steward came to Qian Jingyi and bowed down to listen to the order.

Qian Jingyi instructed: "Send someone to the Han Mansion, saying that the old man wants to invite the new aunt to accompany the girl to return to Ning (back to the door) and stay in the Qian Mansion for seven days." I also invited the Pingyuan Gong to come to the house on the fifth day after returning to the door, and the old man set up a small banquet. ”

"Yes!"

Returning to the door is a etiquette, and the distance of marriage is not the same, as well as its identity, and the time of returning to the door is also different.

If you marry far away, it is normal to return to the door after a year.

But in Lin'an Mansion, it is normal to return to the door after three days, and then return to the door generally The bride has to stay at her mother's house for one night and live in the same city for seven days, which is indeed a bit strange.

When the words reached the Han family, what could Han Yanxuan say, and he agreed without a word.

It's just that when he returned to the door, he invited him to a small banquet on the fifth day, so it must be an excuse.

Something!

What is the matter, Han Yanxuan didn't ask.

With the three words Qian Jingyi, let him go to a small banquet every day, and he will not refuse.

Returning to the door, the Han family had already prepared for Han Jiang.

Gui Ning!

Qian Xinyao had already thrown Guining eight hundred miles away, and she finally saw the first small field cannon with her own eyes, which was a small cannon that Shi Laodan invited his senior brother to carefully cast in copper.

It's not even as big as the one that Han Jiang used for experiments at the beginning, only one inch.

Don't underestimate this ultra-small version of the cannon.

It is not a ball that is loaded in, but a cone, which is still copper-clad lead, and is rear-loaded.

Han Jiang went to Xishan in the name of going to see the plot of Xinzhuangzi, and the real purpose was to test the gun.

The rear-loading type, loaded with a cone shell with a diameter of one inch, the front end is lead, the back is tin, and the outer bread is copper, which is the idea of a bow and arrow used by one of Shi Laodan's senior brothers, who believed that the weight of the front end can increase accuracy, and the long shape is easier to control the trajectory than the spherical shape.

Han Jiang had no objection.

I have money, although you experiment, every experiment is an accumulation of experience and knowledge.

Then, three layers of base medicine.

Two layers were a stabilized version of nitroglycerin with some kind of powder, and one was refined gunpowder. Up to now, Shi Laodan has not developed a reasonable way to directly detonate nitroglycerin, so the gunpowder detonation method is used.

Using the theory of the Song army's original assault rifle, the length of the barrel was highly accurate, so the length of this cannon reached four feet.

Han Jiang and Qian Xinyao stood fifty steps away from the small field cannon, wearing thick ear guards on their ears.

There is a specially trained Han family in charge of loading.

Three hundred steps away, that is, a mile away, there are craftsmen who have built eighteen earthen walls in advance, each wall is one foot thick, and the method of rammed earth and grass is used, which is the standard of most houses in the Great Song Dynasty at present, but the wall is a little thicker.

After a muffled sound, I saw the first wall explode, the second and third collapsed, and then the fourth wall shook and finally held up.

Qian Xinyao forcibly endured the joy in her heart, biting her lip tightly, the power she saw.

This power can fight against the cavalry of the Jin.

Shi Laodan and Senior Brother Shi Changye both shook their heads silently.

Dissatisfied.

According to their imagination, at least seven walls will be pierced.

So where is the difference?

Is it the charge, or the shell, or the barrel, or the structure, or the material......

The rear installation is right, there will be no air leakage after the rear, they added two cork sealing rings and a copper sealing ring, and added a double buckle compression, it will definitely not leak.

Han Jiang stepped forward at this time: "The two Taoist masters, the cannon is originally pure copper casting, pig iron casting, and double-layer composite casting, which needs to be developed step by step. ”

Shi Changye said: "In the future, once you use pure copper to make it on a large scale, you can't earn it, and you need too much copper." ”

"Steel, or alloy copper. Copper added zinc turned into fake gold, this is an alloy, we need real alloy steel, steel is very difficult to process, so I personally recommend considering double-layer composite casting first, I know very well that the war is fought for money, and the importance of reducing unit costs. ”

Shi Changye nodded slightly: "Yes, then the first step is to increase the strength of the cannon body, and you can increase the charge." Then change the ignition to flint fire, no matter how small the ignition hole is, it will run a little gas, which can increase the power of one point, and there will be a power to help kill the enemy. ”

"Yes, that's what the Taoist said."

Shi Changye glanced at the small cannon over there, and said very calmly: "Give another 500,000 guan, or 100,000 guan for a boat of copper, 10,000 catties of pig iron, and 50,000 catties of lead." ”

"Little things. I prepared a million for the Taoist chief, but I couldn't take it out at once, so I sent it to the Taoist chief in quarters. Copper, iron, and lead are prepared for the Taoist leader in as unlimited quantities as possible. ”

Shi Changye just nodded, and he wouldn't say a word of thanks for this.

He saw that the power of this new firearm was much higher than all the firearms equipped by the Song army, whether it was in siege or siege warfare, this thing was of great use, and it was difficult to say in field warfare, and transportation capacity was a big problem.

Compared with Qian Xinyao's high interest, Cai and Ying are not very interested in this thing.

Fighting, killing, and killing are not what they like.

When Han Jiang was discussing with several Taoist leaders, a small boat arrived.