"Where, where, I wait for the juniors, there are still many places to learn from you." Han Lin'er said modestly.

"I know that Han Lang is a humble person who doesn't want to reveal anything, and I appreciate you for that. It's just that I think that since Han Lang can make such a powerful elm cannon, he will definitely be able to create other things. Du Zundao smiled.

"Yes, Master Du is right, the junior is researching a different weapon, but he hasn't estimated its power yet, so he hasn't produced it."

"I see, then I'll wait for Han Lang's next new thing to come out and see the power."

"Okay, it is our honor to have Lord Du and General Sheng present, and I would like to thank Lord Du and General Sheng in advance."

Immediately, Du Zundao and Sheng Wenyu said together: "Don't dare, don't dare, Han Lang is tormenting me to wait." ”

At this time, Han Lin'er was already recognized by everyone as the emperor, so Du Zundao and others were very polite to him, even if Han Lin'er asked for no more politeness, but in the era of various monarchies, the emperor was supreme, and no matter what, he was not allowed to have respect for the emperor.

It's just a change now, in the past, Han Lin'er said the word "folding" to him, but now Du Zundao and Sheng Wenyu said the word "folding" to Han Lin'er, which shows that Han Lin'er's status is high at this time, but this is the beginning of him being at the mercy of others.

Immediately, Han Lin'er smiled at Du Zundao and Sheng Wenyu: "Lord Du, General Sheng, the junior will take you to see if I am making artillery." ”

"I'm just waiting for this, but I'm just a little tired of Han Lang, so I don't want to go." Sheng Wenyu said.

"It doesn't matter, it doesn't matter. Lord Nadu, General Sheng, please. ”

"Okay, Han Lang, please." Du Zundao said politely.

Immediately, all the soldiers took three steps back one after another, making way for Han Lin'er and the others, and at this time, Han Lin'er, Du Zundao and Sheng Wenyu walked side by side to the iron-striking place.

"Lord Du, General Sheng, this is the iron-striking place where I am waiting, these gun carriages, cannon barrels, are all artificially shot from here."

At this time, Du Zundao looked at the sparkling furnace and couldn't help but sigh: "This gang is really vigorous, does this symbolize the momentum of our army." ”

Immediately, Sheng Wenyu responded: "What Brother Du said is right, I look right, you see that this is in Han Lang's venue, what does that mean, it means that Han Lang made me wait for the Ming Monarch and Holy Monarch." ”

This sentence simply made Han Lin'er embarrassed, only to see Han Lin'er smile slightly, "General Sheng is too elevated to me." ”

"I'm telling the truth."

It's just that during the conversation between Han Lin'er and Sheng Wenyu, Du Zundao was still looking at the stove carefully, as if he was exploring this secret.

"Han Lang, Brother Du, you see, the degree of fire in this furnace is the same, you can't wait to say it's strange, according to common sense, it should be more vigorous in the middle than in the surrounding fire."

Immediately, Sheng Wenyu also responded: "Yes, I really want to find out." ”

So Du Zundao looked at Han Lin'er with a puzzled look, only to see Han Lin'er smile slightly, "Lord Du is right, if it is according to common sense, the fire in the furnace will have different degrees of difference, but if I use a special method, it will not be necessarily, and the difference between them will be reduced a lot." It is generally not noticed. ”

"Then I don't know what method Han Lang used? Can you tell me about it? Sheng Wenyu asked curiously.

"Lord Du, General Sheng, when this furnace carbon is on fire, it needs a gas, if we can make all the furnace carbon use the same gas, then the furnace carbon will not naturally burn evenly."

I saw Squatting Zundao and Sheng Wenyu, the more I listened, the more confused I became, at this time Du Zundao asked in a low voice: "Han Lang, what is the name of this gas, is it the aroma of spices?" ”

As soon as these words came out, Han Lin'er laughed out loud, and couldn't help but think, "You don't have to guess so much if you don't know, what is this and what, it's obviously oxygen." How could the O2 be so cheesy as you waited? ”

So Han Lin'er smiled slightly, "This gas is called oxygen (O2). ”

It's just that no one knows what this thing is, and some people are even questioning, "Could it be that Han Lang is talking nonsense, why didn't anyone understand what he said." ”

Seeing that everyone was looking at Han Lin'er in surprise, Han Lin'er saw that everyone's expressions were wrong, and suddenly remembered, "When I said oxygen, how could they know that there was no such thing in this century, even the gas they have been breathing, they won't care, let alone this kind of high-tech term, aren't they just listening to the book of heaven?" ”

Immediately, Han Lin'er explained: "Then don't be surprised, this gas is a rare thing, it is not easy to get, but I was lucky, so I got some, and it just happened to be useful in the past few days." ”

Han Lin'er really had no choice, so he made up this nonsense to deceive them, if Han Lin'er really explained it to them, then it would be okay, and he might not be able to explain it thoroughly to them for half a year, you have to think about it, although this oxygen is all around us, if he asks Han Lin'er to collect some for him to wait and see, let alone what they can see, it is even more difficult to collect pure oxygen in that era than to ascend to the sky.

This reluctant explanation confused Du Zundao and the others slightly, only to see that he and the others looked at Han Lin'er with envy, what they didn't expect was that Han Lin'er still knew so much, and there was this rare gas.

So Han Lin'er said, "Master Du, General Sheng, I'm looking at something else." ”

"Okay." So Du Zundao turned his eyes to the big vat not far from the stove.

Immediately, Du Zundao quickly stepped forward and pointed to the big vat and said, "Han Lang, what is this vat for, why is there a big cloth next to it?" It makes me feel weirder the more I look at it. ”

Everyone turned their eyes to Han Lin'er again, expecting him to express their incomprehension.

"This jar is what we use to filter the iron when the iron is melted and regrets leaving some residue, if I use this cloth and water together I can filter out most of the iron residue."

It's just that Han Lin'er's explanation once again shocked everyone, and this time what they didn't understand was what this filter was.

So Han Lin'er looked at everyone looking at him stupidly, and thought, "How can it be so difficult to communicate with the people of this era, they don't know anything, and I have to explain, but the more they explain this, the more they don't understand, how can this be good." ”

Immediately, Han Lin'er pondered for a while, "I can see that you still don't understand this filter, this filter, that is, to let go of two kinds of things, you think sometimes we take out the things that are washed inside from the basin with water, this is called filtration, but this kind of filtration is to separate very small things." ”

As soon as this was explained, everyone understood, "I see." ”

Immediately, Du Zundao smiled and said, "Han Lang is really clever." ”