In normal times, Li Tianyang rarely had time to wander around the camp like this, and he always passed by these places in a hurry, which was the laboratory that he used to come to often, and he hadn't paid attention to it for more than half a year.

Now, unconsciously, he is walking to the door of the laboratory in accordance with his old habits.

The laboratory is a secluded corner of the camp alone, and several teams of members patrol outside every day day to prevent outsiders from breaking in. It is said that Qixintang is the first all-cement building in Bengang, but it is actually fake, and the real first all-cement building should actually be this laboratory with only one floor.

Not only is the whole laboratory filled with cement, but even the doors and windows around it are ventilated and painful, and Li Tianyang has used iron bars very luxuriously, making it an easy-to-defend fortress.

"Company commander!" The two team members who were standing guard at the door of the laboratory saw Li Tianyang arriving and hurriedly saluted.

"Good work." Li Tianyang returned the salute and looked at the two team members who did not seem to be slackening in the slightest with satisfaction.

He then knocked on the closed tin door, and waited until the team behind the door had verified the outsiders before letting him in.

"How is it, Yang Zhi and Chengcai, is there anything new to Ming?" There are very few people in the laboratory, and until now, there are only eight team members. Among them, it is not Yang Zhi and them who stand out, but Yumo's younger brother Chengcai.

Don't look at it as a talented person, but you can't stop this little guy's brain, he always likes to think on a whim, and he has Li Tianyang's financial support and mention, and several of the camps are his contributions: "Hey, hey, brother-in-law, give you a good thing!" ”

"What's so mysterious?" Attracted by Chengcai's mysterious smile, Li Tianyang watched Chengcai take out a gray thing from a locked cabinet and take it in his hand.

When I bought this object, the first feeling was that it was slippery, and there was a very familiar touch, but Li Tianyang really couldn't remember where he had come into contact with this kind of thing: "What is this thing, what is it used for?" ”

"Hehe, brother-in-law, don't look at our inconspicuous thing, but its purpose is very practical!" Chengcai looked complacent, and hurriedly showed off this Ming to Li Tianyang: "I'll let you see its power!" ”

As he spoke, Cheng Cai took out a bottle of liquid from a pottery vessel and poured it on his hand, and in a short time his hand turned into a black piece. After smearing, Cheng Cai raised his head and explained to Li Tianyang what he was using: "This dye is mixed with some stains that we often come into contact with in our daily life, which are generally difficult to clean, especially these oil stains. ”

"Now, it's time to witness the miracle!" Cheng Cai sold the guanzi for a while, then put his hand and the gray object into the water to soak it, and then took it out and smeared it on his hand, and soon a lot of gray foam appeared on his hand.

At this time, if Li Tianyang didn't know what this object was, then he would be a traverser in vain. Under the surprise, Li Tianyang even blurted out: "Soap??!! ”

"......Forehead" Chengcai stood on the spot, looking at Li Tianyang in dismay, even more shocked than Li Tianyang: "Brother-in-law, are you playing with us?" If you even know the name of this thing, why are you still watching me make a fool of myself like a monkey here!! ”

"Poof!" Yang Zhi, who was guarding the side, allowed Chengcai to behave in front of Li Tianyang from the beginning, and now when he saw Chengcai's embarrassment, he couldn't help it, and laughed out loud.

"......" Li Tianyang was embarrassed, but he couldn't help but wonder why Chengcai would give this thing a name exactly the same as that of later generations: "I just read the description of this soap in the book, so when I saw your demonstration, I felt that it was very consistent with the description in the book, so I just blurted it out." ”

For many memories of later generations, when Li Tianyang accidentally leaked his mouth, he always pushed them to the ancient books written by his predecessors, or the legends and so on. Anyway, if you explain it this way, others may not delve into the source, even if they do, they will definitely not be able to find those ancient books or rumors in Li Tianyang's mouth.

"Is it the book "Mengxi Writings" written by Shen Kuo in the Northern Song Dynasty?" When Cheng Cai heard Li Tianyang's explanation, he suddenly asked in a sense of realization.

"Huh??" Li Tianyang was surprised for a moment, he didn't expect that there was really a book recording this soap, and then covered it up: "It's been too long, I don't remember which book I read it in, I think it should be this book." ”

"Oh, no wonder!" Chengcai's disappointed expression was not hidden on his face at all, he originally wanted to ask Li Tianyang to invite credit, but he didn't expect people to know about it: "Then you are too bad, you have seen such a book a long time ago, and you don't tell us, if I didn't go to the library to read the book myself, maybe I don't know when I will be able to turn to this book!" ”

"So, there is a golden house in the book, and when you have nothing to do, you should go to the library to read the books, maybe there are many clear records of your predecessors in it." Li Tianyang looked at the lost Chengcai, patted him on the shoulder, and then comforted: "But the results this time are also great, worthy of praise, if it can be produced into a product, the sales will definitely not be bad." ”

"yes, yes!" When Chengcai heard Li Tianyang say this, he suddenly became as excited as if he had been beaten with chicken blood: "I told Brother Yang Zhi this, but he didn't believe it at all, saying that it was a waste for me to do this!" ”

Li Tianyang heard Chengcai say this, and couldn't help but turn his gaze to Yang Zhi, judging from his experience in later generations, primary chemicals like soap, whether it is raw materials or technical requirements, should not be very high

"Company commander, you don't know what the raw materials used in this soap are, otherwise you wouldn't let this guy come nonsense." Yang Zhi was on the side and explained unhurriedly.

"What materials do you need?" Li Tianyang couldn't help asking.

"The rest is okay to say, it's just that there is a raw material, and the price is really not cheap, that is, cooking oil." No wonder Yang Zhi is not optimistic about this Ming, in today's Ming Dynasty, although it is not a luxury item for ordinary people, it is not something that can be eaten at once.

However, Li Tian raised their camp, because it was close to the coast and there was a shortage of food, so they always had to go to sea to fish to subsidize the food shortage, and there were a lot of supplies of deep-sea fish such as sharks, but fish oil was enough for the consumption in the camp. In addition, there is a breeding farm, although there are not too many livestock, and some oil can be produced for consumption. But to say that cooking oil is used to produce soap is really a bit of a luxury.

"It doesn't matter, we don't have enough cooking oil in our camp now, but it doesn't mean that we won't have enough cooking oil in the future, not to mention that there is so much land, we can also grow soybeans and other oily crops." Li Tian was not as childish as Yang Zhi, and when he heard Yang Zhi say this useless reason, he said nonchalantly.

"Really??" Cheng Cai saw Li Tianyang's tone and expression, and it was clear that he valued his research results very much, and couldn't help but ask overjoyed.

"Of course, I don't count when I speak!" Li Tianyang patted the little head of Chengcai, cheered him up: "You have to make persistent efforts, the results this time are good, but it is not without shortcomings, like your current appearance, if you take it out, other guests may not buy it!" ”

"Uh-huh!!" As long as his achievements are affirmed, Li Tianyang will nod whatever he says.

(End of chapter)