Shang Wen and his party soon came to Meng Tian's place.

"What's wrong?" Shangwen asked.

"Yue's knife is unusually sharp." Meng Tian said directly.

"Sharp anomalous?" Shang Wen asked suspiciously.

"Yes. You see. Meng Tian then pointed with his finger.

"These knives are the Yue's knives that we have seized in large quantities today. These knives are unusually sharp. This one, this soldier cut off five steel knives equipped by our army in a row, and the edge of the knife is still so sharp. Meng Tian said.

"What?" Shang Wen said with some disbelief. Although Shang Wen is very disgusted with cold weapons. However, there is great interest in what kind of technology was used in ancient times to achieve such a sharp and unusually sharp knife.

"Take a look at this palace." As she spoke, Yingyu picked up a Yue's knife and slashed a steel knife. These steel knives are all carefully crafted and equipped with a large number of cavalry superior weapons. Only cavalry would forge equipment in large quantities.

"Ding." There was a crisp metallic sound. The Yue's knife easily cut through the steel saber equipped by the Qin army.

"Oh my God." Yingyu was also obviously surprised by the sharpness of Yue's knife.

"Dingding". Yingyu slashed two knives in a row.

"Alright. Don't cut it. Chop so much, we have to reforge it. Laborious and laborious. Shang Wen said.

"You take care of me. Nerds. Yingyu said dissatisfied.

"Hey, why does the princess call you a nerd." Meng Tian said with a smile. The guards around him didn't dare to laugh out loud if they wanted to.

"You. Forget it and get down to business. Shang Wen had no choice but to divert the topic and said.

"I suspect that Yue's knife is some kind of alloy steel." Shang Wen said.

"Alloy steel?" Meng Tian and Yingyu shouted together.

"That's right, it's when these knives are forged, some trace element is added. As a result, these knives have two or more elemental characteristics. Shang Wen explained.

"Oh. I remember. Can't hang it, some time ago, there were always people who reacted, and when it came to close combat, the knives of the Yue people were very sharp. I didn't pay attention at the time. Seemingly. These knives are alloy steel. Meng Tian said.

"Yes." Shang Wen nodded and said.

"Actually, the iron knife we forge, the steel knife, is alloy steel. It's just that they are alloy steels of carbon and iron. The specific gravity of carbon is not the same, and iron and steel will be different. Carbon is comparatively softer. Therefore, iron contains a lot of carbon. The texture is softer than steel. So the toughness is good. Steel has less carbon, so the texture is more rigid, but without carbon, the texture is more brittle. Shang Wen didn't know if such an explanation would make these people understand.

"Oh." Meng Tian nodded in understanding.

"Talking so much nonsense, nerd, tell me what's going on with this Yue's knife." Yingyu said a little impatiently.

"You, can you get rid of ・・・・・・ word?" Shang Wen said.

"I can't." Yingyu replied resolutely.

"Okay." Shang Wen said.

"There is a certain element added to these knives, and I can determine which element. Because there are several elements, it takes me a lot of time to detect these textures. Moreover, there is no technical equipment. So, it can't be done. Shang Wen said.

"Oh. Pity. Meng Tian said regretfully.

"I suspect it's manganese steel, though. Because this steel is the best material, it is used in many places. For example, drill bits, bulletproof steel plates, and armor, etc. Shang Wen gave an example.

"Armored, bulletproof." Meng Tian shouted.

"Yes. That's how it should be. I think that this ore must be abundant somewhere in the Yueshi country, and as long as we have this ore, we can make special steel in large quantities. Shang Wen said.

"Didn't you say it for nothing?" Yingyu kept pouring cold water.

"However, at present, these steels have solved a big problem for me." Shang Wen ignored Yingyu's words.

"When our barrels were being processed, the rifling problem had not been solved. It's because of this drill bit that it can't be solved well. The main thing is the hardness problem. With a normal drill bit, the drill bit is replaced halfway through drilling. Now, having solved this problem well, I believe that it will not be long before we will be able to produce, rifled guns. In this way, our muskets can hit farther. Also in fifty paces, we fired ten bullets, and it is estimated that we can hit six of them, which is a very remarkable thing. But with rifled guns, we can go farther. More accurate. Shang Wen said.

"My weapon strength lies in long-range killing. Not in melee. We want to avoid close combat as much as possible. Now the weather in the north is so cold. Large-scale troop operations are not realistic enough. Shang Wen said.

"When it's cold, everything changes. Even the Yueshi knife, which is abnormally sharp, can become brittle in very cold conditions. Shang Wen said.

"If you want it to happen, we're not going to fight." Yingyu asked.

“yes”。 Shang Wen said.

"What a death." Yingyu asked.

"We need to be on guard to prevent the enemy from sneaking up, and we have to hold them back, and God will clean them up without us having to clean them up. In the end, we just have to deal with them. During this time, we can stay in the back and eat ice cream. Shang Wen said.

"Ice cream. What is this. Is it tasty? "Yingyu is very interested in all new things. Hearing Shang Wen inadvertently say something new, he immediately became interested.

"Delicious, very tasty. It's delicious. In addition, eating ice cream in winter has a particularly refreshing taste. Shang Wen seduced.

I didn't expect that what I said unintentionally would be able to attract Yingyu's attention all of a sudden. Very good. Yingyu, just shut up for me.

"Then you, hurry up and make one for me." Yingyu said.

"Okay, we still have some things to discuss." Shang Wen and Yingyu muttered.

"What's the matter? I promise yes. Yingyu said.

"Okay, you said it. Deal. Shang Wen said.

"What is a word. I'll just say yes. Yingyu said.

"Okay, that's what you said. Don't call me a fool anymore. Shang Wen said solemnly.

"That's easy to say. Very easy to say. I agreed. Yingyu agreed.

"Good. I need a lot of raw materials right now. For example, a large amount of fruit is needed, such as: Apples, oranges, pears. Wait a minute. All fruits. Shang Wen said.

"What's the use of you asking for this?" Yingyu asked.

"Fruity ice cream. Haven't you eaten it? Shang Wen said dissatisfied.

"Nonsense, I've eaten it, can I let you do it? I'll take care of that. Yingyu said loudly.