Just thinking about it, Cao Tong and the others saw Li Buqi and waved to him. Li Buqi hurriedly went upstairs and led him to the private room from the small servant, and saw that the people who arrived today were all the sons of the nobles who were twenty to thirty years old, and there was no one under the age of twenty. There was also a scribe with a short beard that he had never seen.

Cao Tong introduced Li Buqi that this was Wang Kechen, the great-grandson of the founding general Wang Xianqi, who had returned from Shouzhou Tongju and had not yet arranged a new official position.

Wang Kechen! Li Buqi heard from the sons of Xun Gui that Wang Kechen was a jinshi in the Jingyou period, and he was a rare person who could write and martial arts in the Jiangmen.

Wang Kechen said with a smile: "I heard many stories about you before I returned to the capital, but I didn't expect to meet so soon, isn't this fate?" So I went to sit inside, it happened that my brother had a new treasure but was a little puzzled, I heard Brother Cao say that you even know about overseas affairs, see if you can explain it to us. ”

Of course, you can't take out the treasure right away, it's so uninteresting. So the banquet was laid out first, but some people couldn't hold it back: "Li Buqi, just now we were arguing about where these colorful colors came from, is it the seven colors of sunlight or the seven colors of water?" How did you say that this colorful color came about? ”

Oh, it's good that you can think about this question, I'm optimistic about you! It's just that I'm not going to tell you the answer, at least not now.

I know that water droplets can conjure up seven colors, and I can say that I have seen it, but knowing that sunlight is composed of seven colors of light, this is an anomaly, right? Do you know anything, will you be labeled as a "wise and close demon"? The Great Song Dynasty banned books that speculated on fortune and misfortune through astronomy, and if there was a person who knew everything, the emperor would not be able to sleep well.

I'll leave this question to you to think about when you're idle, and I'll reward you for finding the answer.

Li Buqi shook his head helplessly: "I'm also very curious about this matter, but I haven't figured it out yet." ”

Sure enough, everyone thought that Li Buqi's answer was normal, so they continued to drink, eat, and tell some strange things. Cao Fu, the elder brother of Cao Tong who had drunk three rounds, shouted: "Wang Liulang, you have been fishing for a long time, what kind of treasure should you take out?" Don't give up and you're here, didn't you say that you want him to give you a solution? ”

Wang Kechen hurriedly confessed, and then instructed his companion to bring the treasure. One companion came over with a box more than a foot high from the corner of the house, and the other companion carried a hanger and placed it in the center of the room. Wang Kechen personally opened the box, but inside was a collar of iron armor. When the cuirass, cover, armor skirt and other parts are hung on the hanger, the dark and heavy appearance is not unusual. Wang Kechen said ostentatiously: "Who knows this treasure?" ”

Immediately, two people shouted: "Wang Liulang, what the hell are you doing?" It's just a collar of armor, who doesn't have a few collars in the treasury of our gate? ”

Wang Kechen said: "Don't underestimate this armor. The armor had been stripped from a summer thief officer. It is said that the Xia thief shot more than a dozen arrows at the crossbow, but none of the arrows could penetrate the armor, but only killed the Xia thief's horse. The summer thief was also fierce, so he fought with a sword, but this armor was invulnerable. In the end, he used an iron shovel to smash the summer thief to death. ”

As soon as he said this, Li Buqi also noticed that the armor was covered with traces of slashing and spear stabbing, and there were two obvious heavy blow wounds on his chest, and the armor leaves were deformed, which showed the great power of the blow.

Cao Fu asked: "Is it too far away for the crossbow arrow to shoot through?" ”

Wang Kechen said: "The man who gave me armor once ordered someone to shoot two arrows with a strong crossbow at thirty paces, but it did not penetrate. That man's ancestors came out of my house to protect him, and he would never lie. ”

As soon as these words came out, everyone smacked their tongues, and someone said: "The Xia thief's armor is so good, no wonder the king has been defeated by the Xia thief." ”

Someone immediately retorted: "The defeat of Sanchuankou and Haoshuichuan was due to the ambush, and it was those turbans who blindly commanded the three armies to death, not that the armor was inferior to the summer thief." ”

Wang Kechen is a civil official, so he wants to maintain his position, and hurriedly said: "The defeat of Sanchuankou is indeed Fan Bochun (Fan Yong) fell for Yuan Hao's treacherous scheme, but the defeat of Haoshuichuan is Ren Fu's pride and contempt for the enemy's resentment on Han Zhigui's head." Han Zhigui had ordered Ren Defense (Ren Fu) to advance slowly, not to rush in, and Ren Defense did not listen to him before he fell into an ambush. ”

His cousin Wang Kexu sneered: "The sixth brother has been a jinshi and has become a civil official, and his speech is different. Hehe. ”

Seeing that the atmosphere was a little embarrassing, Cao Tong hurriedly diverted the conversation, pulled Li Buqi to the armor and asked, "If you don't give up, you may recognize what kind of armor this is?" ”

Hearing him say this, everyone stopped arguing and looked at it, Li Buqi listened to Wang Kechen's praise of this armor so much, and he also looked carefully at the armor leaves. When he looked closely, he noticed that there was a small protrusion above each nail leaf, and his eyes immediately lit up. Seeing him like this, Cao Tong hurriedly asked, "Do you recognize this armor?" ”

Before the crossing, Li Buqi had a copy of "Yuan Journal Mengxi Writings" at home, in which Shen Kuo recorded the origin of this Jia. Li Buqi said: "When I was in Shaanxi, I heard an old horseman say that there is a kind of scarlet nail near Longyou, which is probably this thing. You see that every nail leaf has a protrusion on it, like a madman. ”

Wang Kechen laughed first: "It is indeed Qi Zijia." But I don't know if you know how this squire armor is made? They got this armor and let people imitate it, and it looked the same, but they couldn't prevent the crossbow. ”

Li Buqi stroked the armor that looked smooth because of the lacquer and said, "I heard that this should be made by a cold forging method. ”

"Cold forging? What is this method? ”

Let these nobles also make contributions to the industry of the Great Song Dynasty. Li Buqi explained: "Generally, iron-forging tools are made by burning the iron red and then forging it. Cold forging is to forge the iron without burning it red, so it is more laborious, but the nail leaf is harder. ”

"I see."

Cao Tong said: "Then let the craftsman build it according to the method of not giving up." In the future, if the soldiers go into battle and wear such armor, they will not be afraid of summer thieves. ”

Li Buqi said: "I'm afraid it's not that simple. It is said that the refined iron of Hezhou must be used by the method of cold forging, and the iron of the Central Plains is not good, and it will crack after a few hammers. Iron is different. ”

"How can you say that?" Everyone took a breath of cold air.

One person sighed: "It's a pity! Hezhou is occupied by Xia thieves, and this kind of good iron will definitely not be sold to me in the Great Song Dynasty. ”

Li Buqi said: "In addition, some overseas iron can also be used, such as Japan. ”

This reminded everyone, and Cao Tong increased the amount with his hand: "That's right." Look how sharp the Japanese sword is, and how strong it is to pierce a shield. Sure enough, it's good iron. ”

Li Buqi asked: "Then it is possible to buy iron made in Japan?" ”

Cao Fu said: "Occasionally, there will be Japanese ships to Mingzhou for trade, and there will also be Japanese iron for sale. ”

Li Buqi further seduced and said, "That's it? I've heard people say that this kind of iron can be used for a lot of purposes. If you can use it to make a steel wire, and then make something that can make people fly into the sky. ”

"What? Fly into the sky? A group of nobles suddenly became excited: "How? "Is it the rising of the day?"

Li Buqi explained to them: "It is to make something like a bird's wings, so that people can fly like a bird." ”