"Sure enough, it still doesn't work!"

Looking at the soft and collapsed thing in the bowl, Feng Yong poked it with his hand, and finally grunted.

Although it stands to reason that the things made will have to be dried in the shade before they can be formed, but looking at the current appearance, Feng Yong no longer has much hope for it.

Although he was extremely bored, he thought about trying to use tung oil to do this, but he actually still had hope in his heart, and now that his hope was shattered, Feng Yong was extremely disappointed.

Putting aside the contents of the bowl, he lowered his head and looked at the precipitated waste liquid carefully, and finally sighed and scolded: "Damn, I knew that I would go to study the chemical industry!" ”

"Brother, what's the use of this thing?"

Zhao Guang's whole body was trembling slightly uncontrollably, especially his hands were trembling terribly, and he looked like a Parkinson's disease patient.

It's a pity that he looked at what he had worked hard all day to make, but he couldn't understand anything.

Feng Yong glanced at this stubborn guy and said lightly, "It's useless, it's a failure." ”

"What...... What is useless? ”

Zhao Guang's pupils widened suddenly, and his expression was excited: "How can it be useless?" How can it be? Little brother, this ...... It's been a busy day, and it's useless!? ”

"I was bored in the first place."

Feng Yong saw that this guy had the urge to run wild, and hurriedly comforted him at the moment, "It's also a little useful, when it dries, you can use it to try washing clothes!" ”

"Can you just do laundry?"

"This works."

Feng Yong hurriedly pointed to the waste liquid and said.

"What's the use?"

Zhao Guang had suspicion in his eyes, it seemed that Feng Yong's credit was temporarily overdrawn by him.

"When applied to your hands, feet and face in winter, it can protect against freezing."

The by-product of soap is glycerin, which is a good thing.

Those skin care products in later generations will contain this kind of thing.

Because it moisturizes the skin and, most importantly, prevents the skin from freezing and cracking.

Especially in this era of the Xiaoice period, the north is getting colder and colder, and the role of glycerin will become more and more prominent.

For the Northern Expedition a few years later, it was too good to be better.

However, the matter of the Northern Expedition cannot be talked about at present, so Feng Yong can only vaguely say that it can be frost-proof.

And at present, this soap manufacturing experiment has been considered a semi-failure, whether this waste liquid can filter out glycerin, in fact, Feng Yong does not report much hope.

But who called Zhao Guang illiterate in chemistry?

I said yes, but I don't accept you to use your chemistry knowledge to debate with me!

Of course, Zhao Guang didn't study chemistry, but he had eyes.

Looking at this liquid that he couldn't see what color it was, if he really believed that applying it to his face would protect him from freezing, it would really test his IQ.

Then the suspicion in his eyes deepened.

"Of course, you can't apply it directly, you have to filter it out again."

Feng Yong believes that Zhao Guang's IQ is not low to that level, "You still need to put some filtered lime water in it to make it." ”

Mixing grass ash water and lime water together to obtain potassium hydroxide.

This can be used to precipitate glycerol from the saponification reaction.

Although Feng Yong does not have lime in his hands at present, he has a lime mine in Hanzhong, and it is also a large-scale mine with hundreds of millions of tons of first-class products.

So Feng Yong continued to fool Zhao Guangdao, "When I go back to Hanzhong, I'll show you again." ”

If you really make glycerin, in addition to selling it to Zhuge Old Demon to go to the Northern Expedition, you can also think of adding some floral fragrance to it, and make some cosmetics and skin care products come out, so as to bring delicate skin to the women of the Han Dynasty, it is also excellent.

When the time comes, make a slogan: if you want to have good skin, use Dabao in the morning and evening, Dabao will see you tomorrow, Dabao will see you every day......

Isn't it beautiful?

"Someone, bring that armor up."

Feng Yong temporarily flickered Zhao Guang, and then ordered his subordinates again.

A pair of shiny armor was quickly taken.

"How? Does it work? ”

Looking at the armor in Old Soldier Lu's hand, Feng Yong asked.

Old Brother Lu had a happy look on his face, "Go back to the master's house, it's useful." A few days ago, according to what Lang Jun said, after applying tung oil on it, he deliberately splashed it with water, and after a few days, he found no signs of rust. It's very different from before. ”

"In the past, this armor made of iron, not to say that it was stained with water, even if it was not used for a long time, it should be taken out from time to time to wipe it to avoid rust. Not to mention that if you accidentally get wet, you must carefully dry it. ”

"Otherwise, if it rusts, it will deteriorate quickly. Now the tung oil is coated on it, but it is not easy to rust, even if it is stained with water, there is no rust after a few days, it is really a good thing. ”

Of course, it is a good thing, even in the era of World War II, when the industry has developed rapidly, tung oil is still a must-have for the maintenance of weapons.

It was a rare strategic reserve material for China at that time.

Even in the 50s, China still controlled 90% of the world's tung oil exports, and no matter how disgusting the beauty was, she had to pinch her nose and pay a high price to buy tung oil in Hong Kong.

"See? This can be very useful. ”

Feng Yong launched the stunt "Clever Words" and said to Zhao Guang, "What you just did is just a trivial matter, the main purpose of this tung oil is that it can be used to maintain this armor and weapon." ”

"If you look at this weapon armor, it goes without saying that it will not rust all the time, as long as it can be easily not rusted, then this benefit is great, this is a big deal."

Most of the armor used by soldiers now is leather armor, and those who can use iron armor are also biased to the top.

The little soldiers at the bottom have a pair of tattered leather armor, which is a blessing.

Iron armor has high protection, and relying on it, the chance of surviving on the battlefield is much higher than others.

But iron is scarce, and iron armor is even rarer.

And its maintenance is also a big problem.

In this era, the quality of iron was not high, not to mention iron armor, even if it was a weapon in the hands of a soldier, it would break when it was cut on the battlefield, that was also a common thing.

Once it rusts, it's more susceptible to damage.

With a large amount of tung oil, it is much easier to maintain iron armor and weapons.

Zhao Guang may often make two mistakes in other places, but once it comes to marching and fighting, it is like a different person.

reacted immediately, "No wonder my brother wants someone to send this tung oil over, it turns out that it is to do this?" ”

"This south is hot and humid, armor and weapons are more likely to be damaged than elsewhere, if it is really as my brother said, this tung oil can make iron not easy to rust, then it is naturally a big deal!"

As he spoke, he directly snatched the armor in Old Soldier Lu's hand, and observed it carefully for a while, before he raised his head with a sudden look on his face, "It turns out that my brother went to the mountain a few days ago, not to relax, but to find this poppy tung tree that produces tung oil?" ”

"That's right."

Feng Yong said, took out another ticket from his arms, flicked it, and the crisp voice "clicked", and asked, "What is this?" ”

"Tickets."

"Do you know what is the difference between the ink on this ticket and the ink that others usually use?"

"Naturally, I know that there is oil in this ink."

"That's right, there's oil in this ink. In the future, Nanxiang will not only print tickets, but also print more books, so more and more ink will be used. Looking at the whole big man, where is the most oil? ”

Feng Yong broke the family's intellectual monopoly, in addition to using a large amount of paper, he also had to use a large amount of ink to print.

If you want to use so much spicy oil, you can't use lard again, right?

Where is the amount of oil?

The output of tung oil is in the south and the middle.

As long as he can lead the people of Nanzhong to make a fortune, who will be willing to rebel?

As long as no one is willing to rebel, isn't the political task assigned by Zhuge Lao Demon completed?

Do you care if I made money during this period or dug into the corners of the family?

Obviously, the tickets with the scent of ink could attract Zhao Guang's attention even more, and his eyes lit up, "This tung oil has so many benefits, and this poppy tong is everywhere in Nanzhong, so aren't we going to earn it again?" ”

"Vulgar! It's vulgar! ”

Feng Yong glanced at Zhao Guang and criticized him for his undignified words, "We came to Nanzhong for the peace of the people in Nanzhong, not for us to make money ourselves!" ”

"Look at this Nanzhong, what has been ruined by the rebels? Even if the people want peace, they can't get it, let alone have food and clothing. So we asked the people to go to the mountains to pick some tung oil seeds to exchange grain, and that was for their good, understand? ”

"The people are pitiful," Feng Yong sighed, the kind that was particularly sympathetic, "Even after the pacification of Nanzhong, it is not said that crops can grow in the field immediately, and useless oil tung seeds are exchanged for food to tide over the difficulties, who dares to say that this is not saving lives?" ”

"Yes, yes, yes!" Zhao Guang nodded again and again, "That's right, that's it." The elder brother is still kind-hearted, but the younger brother knows that he is wrong. ”

Then he leaned over and asked in a low voice, "Brother, can we ask those people in Jinchengxing to prepare food?" ”

"What's the hurry?" Feng Yong said angrily, "Although the price of grain has not risen as much as the year before last, it has risen in the end, and it is not a big loss to buy grain now?" ”

"The oil tung seeds can only be picked in autumn, and it happens to be the time to harvest grain in Jincheng, I estimate that by that time, the prime minister has almost put down the rebellion, and as soon as the news reaches back to Jincheng, the price of grain will definitely fall to the lowest, so it is cost-effective to buy grain."

"The people of Nanzhong haven't planted much grain this year, so they just let Jincheng transport grain for them to survive the winter, and at the same time, it will also calm people's hearts."

"Count it all in one fell swoop! It's still a great brother. ”

Feng Yong's careful calculation made Zhao Guang thumbs up convincingly.

Wang Xun's face was expressionless, and his three views had long been numb.

But when Yang Wan heard this, his heart ran like 10,000 divine beasts: This is the young hero Feng Langjun who was praised by the prime minister?

Lang Jun, the first boy in the Han Dynasty who was praised by the Queen of the Han Dynasty, is this special appearance?

Really...... Makes sense!

If his father could have had this scheming back then, would he still be thrown homeless? I can't say that I can swallow up the enemy and strengthen my own tribe.

The Han people are really too cunning, or are we Hu people upright.

Yang Wan had a lot of thoughts in his heart, and sighed, I must follow my brother and study hard!

Feng Tu didn't know that his own source of pollution had polluted a young man with great ambitions.

"Dump this." Feng Yong pointed to the waste liquid, and then to the soap, "Put this in a dark place, and wait for it to dry and see what it looks like." ”

"I'm coming!"

When Yang Wan heard this, he hurriedly said.

He didn't let his subordinates do it, he did it himself.

Feng Yong washed his hands, walked into the house, took out a wooden box, took out a notebook and a charcoal pen, turned to a page with the catalog of "tung oil", and then began to record:

The failure to make soap proves that tung oil is not a good raw material for making soap.

Maintaining weapon armor is currently feasible for the time being.

Making glycerin is unknown.

He thought for a while, and then added two sentences to it: the nature of potassium hydroxide is relatively lively, and you can try to make glycerin from potassium hydroxide. Potassium hydroxide can be made from potassium carbonate and calcium hydroxide.

After writing, the last two sentences are enclosed in parentheses to indicate that they are additional.

When the ink on the notebook was dry, he put the notebook back away and carefully placed it in the box.

In this box, no matter where he goes, he has to take it with him, and it is full of the knowledge of his past life that he inadvertently remembers on weekdays, whether it is useful or not, as long as he can remember a little, he writes a little.

There is another such box in Feng Zhuang in Jincheng, Nanxiang.

The only difference from the one next to him was that Feng Zhuang's box was already full of what he had written.

The reason why Feng Yong wanted to write down everything he could think of without fear of trouble was because he was afraid that after he came to this era for too long, he would gradually forget all the things he had before.

patted the box and sighed, the loneliness in the deepest part of my heart has never disappeared, because the things in the box have been reminding me that I am different from others.

When Feng Yong was writing, Zhao Guang and the others consciously guarded the door and did not let people disturb him.

The box was full of the master's knowledge, which my brother told them.

And the elder brother has never shied away from writing this thing in front of them, and even if they want to, they can flip through it - unfortunately none of them can understand it.

For most of the knowledge, they can understand the words, and they can't understand the meaning between the lines.

Legend has it that there are no words in the book of heaven, and although my brother's knowledge cannot reach this level, there are words that people can't understand, which is also very powerful.

Of course, there are a small number of them who can understand it.

Seeing that Feng Yong had finally finished writing, Zhao Guang walked in, glanced at it probingly, and then said, "Brother, are you done?" ”

"Well, it's done."

"So fast?"

When Zhao Guang heard this, his face was overjoyed, and he hurriedly went over and rummaged through the box, and then took out a notebook, only to see four big characters written on the cover of the book: "Breaking the Sky".

After a while, Zhao Guang said in disappointment, "Why hasn't my brother updated yet?" ”

Feng Yong glanced at this guy who was urging the change, and said slowly, "What's the hurry, you have to let me think slowly." ”

"That, brother, can you tell the little brother first, did the little doctor fairy help Xiao Yan heal?"

Zhao Guang sat down next to Feng Yong and asked flatteringly.

"What's in it for you?"