After Shang Wen read the recital, he got in the car and came to the Qin Palace. Zhao Gao led the way in front. Shangwen followed.

When he walked into a large hall, Shang Wen saw what King Qin was eating. I guess it's a late-night snack. It's late. Shang Wen thought so. When Shang Wen walked in, he was taken aback. It was the elixir of ancient legends.

Shang Wen felt like he didn't know what to say for a while. I don't know what to do. It is rumored in history that this Qin Shi Huang died by taking pills, and the main ingredient of this kind of thing is metal mercury. To put it bluntly, it is also the ingredient of the earliest cosmetics. It's just a temporary effect. As for what are the ingredients of other pills. Shang Wen is unknown. But to sum it up. None of this is a good thing.

"Mr. Qin is here. Sit. "King Qin saw that he was taking pills. It was not strange to beckon Shang Wen to sit down.

"Your Majesty, this, this elixir, it's better not to take it." Shang Wen explained.

"Oh. Why? King Qin said with a relaxed attitude.

"This thing is a heavy metal, take it for a long time, it must, it must be ・・・・・・" is still civilized, if it is said that people's life expectancy will inevitably be affected, this is a big taboo. It's going to kill the head.

"What must be?" King Qin asked.

"It will be harmful to the body. Actually, it's a chemical agent. This alchemy secret technique is just nothing. Shang Wen said.

"Oh. In this way, the gentleman has also studied this alchemy," King Qin asked.

"This alchemy is just one of the things in chemistry." Shang Wen replied.

"Chemistry?" King Qin said.

"Yes, chemistry is to change the original material properties of one or several substances through a certain method. It's called chemistry. "It is impossible for Shang Wen to take out a thick dictionary to explain to King Qin at this time, so he has to be so particular. Anyway, the meaning is pretty much the same.

"These methods include a variety of such as distillation, dry distillation, dissolution, etc., and so on. These are all chemical reactions that cause them to form a new substance. Shang Wen said.

"Oh. Speaking of which. This elixir seems to be like this. King Qin suddenly realized.

"These substances, to speak, are endlessly changing, and it took generations to discover their mysteries. And these substances have different properties and different applications. It's like this glass. Shang Wen said, pointing to the glass on the desk and said.

"That's chemistry. Put in several different substances to create a completely new substance. But there are good and bad things about this thing. It is toxic and non-toxic. Without long-term testing, it is difficult to determine. Therefore, the king still stopped taking these pills. Shang Wen persuaded him.

"This." King Qin hesitated.

"This elixir contains heavy metals, especially mercury, and the dansa is mercury sulfide. Taking a small amount of this mercury still has a certain effect, but it can be taken for a long time. Serious damage is bound to occur. The last symptoms are ・・・・・・・" Shangwen wants to explain the symptoms of mercury poisoning in detail.

"What?" King Qin asked.

"Mental disorder, tooth loss. There is also pain in the joints of the body. Finally, ・・・・・・ "Shang Wen didn't dare to continue.

"Whoa." With a wave of his arms, King Qin knocked all the pills, pen and ink on the desk to the ground.

"Come on, pull out all those alchemists and bury them alive." King Qin shouted loudly. Shang Wen was very angry when he saw King Qin. Shang Wen couldn't say anything when he saw this. After all, it's better to say less at this time.

"Whoa." Zhao Gao hurriedly ran away.

After waiting for a long time, it is estimated that King Qin's anger has almost disappeared. Shang Wen also knew that he couldn't talk nonsense at this time, and besides, King Qin's move was probably to say goodbye to the pill. Even in modern times, you can't just take medicine. Especially chemical agents. There are no side effects. That's weird. The elements of the composition of the human body are relatively balanced. If one of the overruns upsets the balance, the result will come sooner or later. It's just a matter of time.

"Thank you, Mr. Qin." King Qin turned around and bowed to Shang Wen.

Shang Wen didn't dare to say anything more. I bowed too.

"From now on, the widow will not be taking this elixir." King Qin said explanatory.

Shang Wen smiled and nodded.

"Your Majesty, now there is an arms order from Yan Kingdom, but it is still difficult to meet the current demand." Shang Wen continued. Shang Wen deliberately diverted the topic.

"Oh. What's the difficulty. King Qin asked.

"Barrel." Shang Wen said bluntly.

"The barrel is very difficult to machine. Basically, it relies on casting, but when casting, it is inevitable that bubbles will be generated. Led to problems with the entire barrel. And only those highly skilled foundries can complete these technical requirements. The forgers had to finish casting the cannons. For a time, it was difficult to complete such a large scale of production. Also, even our Qin army also needs to be equipped with this kind of weapon, but this weapon is according to the current situation. I'm afraid ・・・・・・," Shang Wen said with some embarrassment.

"I'm afraid of what". King Qin asked.

"I'm afraid that according to the current situation, it will take at least ten years for our equipment to be completed on a large scale." Shangwen's figures come from statistics. The Qin army almost had a million troops in the country. The standing army is only about 300,000. However, at the current rate of production of barrels. It's basically a fraction of that number. And the quality problem is also very prominent. From what Wang Ben learned, it was learned that the barrel began to heat up after several consecutive shots. Unable to shoot. Fortunately, the tactical queue temporarily made up for this shortcoming. Moreover, the barrel has a lifespan, and a large number of spare parts are required for replacement and repair. At present, it is impossible to complete its own production.

"So long." King Qin said.

"Yes." Shang Wen nodded and said.

"Then Mr. Qin must have a solution?" King Qin asked rhetorically.

"This, this." Shang Wen touched his mouth with his hand.

"This has to be solved with technology. According to the current processing technology, it is simply not satisfied. The day before yesterday, he had planned to renovate the machine tools, but the effect was not very obvious, and there were still many machines missing. But the minister is willing to give it a try. Shang Wen said. In fact, Shang Wen felt that he had to do this. Because there are many things that cannot be done by manpower. First of all, those mature craftsmen. If you rely on the continuous teaching of craftsmen, you can complete more than 2,000 orders in a short time. Estimating is hard. Now the only way to improve the technology is to improve. The problem of the barrel must be solved. No, all six nations were heavily armed with muskets. With the exit of muskets. The six countries that have benefited will definitely have a large number of imitations. In the face of imitations, the Qin army did not have such equipment. It's going to be a hard hit. This must not happen. Weapons differ by an algebra. It's just a joke.