I was a fan in ancient times [Transmigration Book]

Tung oil?

Both Yan Qiao and the Mohist giant looked puzzled, they had never heard of this stuff.

Seeing their expressions, Han Yi thought to himself: Come on, he is going to start "creating inventions" again.

To be honest, Han Yi has deliberately reduced the frequency of creating new things recently.

He didn't want to discuss whether he time-traveled or not on the Internet in the future.

Of course, this is not the point. The point is that many things have not yet formed a system. After he takes them out, if they develop in a good direction, someone will reverse the development process of the whole thing through the finished product.

But if people take it for granted that such a thing appears and don't study it, then the whole system cannot be established, how can it develop?

Coupled with the fact that there is indeed a lack of industrial support now, it may take a long time to try to figure out many things.

Han Yi said that he wanted to be a salted fish, how could he still engage in those things?

But tung oil is fine, it's not difficult to get it, the problem now is that there may not be such trees, or people haven't thought of making tung oil.

If you want tung oil, you must first find tung oil. I don’t know if the name of this tree is because of tung oil, but obviously it is not called this name now.

Because the trees in this area were almost cut down, and Han Yi's own mountain hadn't been visited much, he could only find the steward of the manor, and then described the appearance of the tung tree.

In fact, Han Yi doesn't remember the appearance of Tung tree very clearly, so he can only try to describe it as much as possible, and then let Guang cast a net for others to find.

Fortunately, he has enough manpower, and there will be people all over the mountains and plains looking for him as soon as he gives an order.

The giant of the Mohist family also asked the people to look for this kind of tree. Yan Qiao asked with some doubts: "Is this kind of wood special? Can it produce oil?"

Han Yi replied, not knowing whether to laugh or cry, "It's not wood, but their fruits. Their fruits can also be called seeds, and oil can be squeezed out. This oil is called tung oil."

"Huh?" Yan Qiao and the Mohist giant looked at each other. Yan Qiao was curious about how the tree species can extract oil, but the first thought of the Mohist giant was: "If this is the case, can this kind of tree be planted on a large scale? Ordinary people can also Squeeze out the oil and eat it..."

"Wait..." Han Yi immediately said with his hands, "Don't eat it, don't eat it, this oil is poisonous!"

The Mohist giant was taken aback: "Poisonous?"

Han Yi nodded: "Tung oil actually has the value of being used as medicine, but it can only be applied externally and not taken internally. It will really be poisoned if taken internally."

The Mohist giant said with some embarrassment: "I took it for granted."

Han Yi smiled and said, "Juzi has never seen this kind of thing before, so it's normal not to know, not to mention that Juzi is also worried about people's livelihood."

Yan Qiao suddenly asked: "Wait... What does the fact that tung oil can be used as medicine have anything to do with our shipbuilding?"

Han Yi explained in detail: "Because tung oil itself is resistant to water, alkali, light and atmospheric corrosion. After brushing it, it is equivalent to putting a protective film on the wood. Didn't you also think this way before? But the material used is not suitable. , this material is very suitable.”

The Mohist master keenly heard a term he had never heard before and asked, "What are alkali and atmosphere...?"

Han Yi: ...

How does this make him answer?

If he wants to answer clearly, I'm afraid he really has to start with Pangu opening up the world.

So in the end he could only say: "Atmosphere is air, the air we inhale and exhale, alkali... I have only heard of this before, but it is not easy to give an example for a while, I will see it later." Time will definitely bring it to the giant."

The giant of the Mohist family looked puzzled. There is no such word as "seeking deep understanding" in his character. When encountering things that he doesn't understand, he must get an answer.

As for Han Yi's answer...he still didn't understand it, so he really wanted to continue asking, but found that Han Yi's expression was also very tangled, as if he didn't know how to explain it.

The giant of the Mo family hesitated for a while and didn't continue to ask, but Yan Qiao saw the entanglement of this "master". After Han Yi went to other things, he leaned over to the giant of the Mo family and said, "Did the giant answer what brother A Yi said?" Do things feel strange?"

The giant of the Mo family was a little embarrassed and said: "I am too persistent, but since it is inconvenient for Lord Hou to speak, I will naturally not ask more questions."

Yan Qiao stood up and smiled, leaned over and said mysteriously: "Do you know why brother A Yi can't tell?"

The giant of the Mo family asked in surprise, "Master Qiao knows?"

"Of course I know!" Yan Qiao said rather proudly: "Because only the immortals in the fairy world know about those things, of course Brother Ah Yi can't say it casually."

The Mohist giant thought he knew something inside, but he didn't expect to hear such an answer.

For a moment, he couldn't help shaking his head and laughing: "There is no fairy world in this world."

Yan Qiao didn't get angry and said with a smile: "I didn't really believe it before, but after seeing brother A Yi, I had to believe it. Otherwise, how would I explain what he knew?"

The Mohist giant said seriously: "In the world, there are people who are talented and talented, and they have nothing to do with gods."

Yan Qiao retorted: "But Juzi also said that A Yi's brother is not proficient in Mohism mechanism, but he knows a lot of things that you don't know. How can this be explained?"

Juzi was also stunned for a while, it's not like he didn't think about this question,

It's just that after thinking about it for a long time, there was still no result, but he never expected to explain it like this.

The Mohists are probably the least superstitious group in this era, but they were led into the ditch by Yan Qiao abruptly.

It's also a good thing that Han Yi is not here, if he is here... it seems that nothing can be done.

Anyway, since that day, Han Yi felt that the eyes of the giant Mo family were full of... piety?

It seems that it can't be said to be pious, that's what it means, anyway, Han Yi looks hairy all over.

After thinking about it, he thought it might be that Juzi thought he was very good at solving such an important problem?

However, whether the problem of water leakage has been solved is still unknown!

Although the tung tree has indeed been found after many efforts, but it has just entered summer, and the fruiting period is in August and September in autumn. They have to wait at least two or three months.

Han Yi thought for a while and asked someone to circle the place where the tung tree grows first, and then find a suitable place according to the climate of that place. Once the tung oil can be used, it will quickly start large-scale planting.

Of course, he didn't need to do it himself, and there was only one thing that he really needed to do - building the saltworks.

Because the salt field is too important, Han Yi simply took a Dumb and ran to the place that was circled before, and nearly a thousand households of Yan Zheng's personal guards had already been stationed there.

Ah-Dai fought with Yan Zheng in the beginning, and he never left him through life and death, and his loyalty to Yan Zheng is absolutely beyond doubt.

It is actually not that easy to turn seawater into salt. Both the evaporation pond and the crystallization pond have certain requirements, and the salt that condenses in the crystallization pond is actually coarse salt.

If you want to get purer fine salt, you need to add various other things such as barium chloride, sodium hydroxide, sodium carbonate, etc., but... there is no such thing in this era.

In the end, it can only be purified by using the different solubility of impurities in brine such as magnesium chloride and calcium chloride. Simply put, it is done by heating and cooling.

This method sounds simple, but it is actually very difficult, because the premise of using the heating and cooling method is to be able to accurately control the temperature.

Han Yi doesn't have a thermometer at hand. The most important thing about thermometers is how to make standards. In fact, the principle is quite simple.

Later, Han Yi thought about it, anyway, he was doing an experiment, he didn't need to make a perfect thermometer, he just needed to test out at which point water can dissolve magnesium chloride, and at which point can other impurities be dissolved.

As for the real temperature indication, well... this can actually be left to the Mo family.

The advantage of working with soldiers like dumb is that no one will ever ask you why this is, how did that come about, or what he wants to do.

The disadvantage is probably that if you fail, you have to think about the reason yourself.

In the process of drying the seawater into brine, Han Yi finally tried to make a simple version of the thermometer.

I have to say that in the era without glass, the cost of making a thermometer was very high, and the most common transparent thing was crystal, but crystal... most people can't afford it!

After the thermometer was ready, Han Yi realized that it was very wise to build an ice cellar first, so that even when the temperature was high, he could use ice cubes to cool down to achieve the purpose of melting step by step.

But in this way, the cost of the purified salt is still very high.

Therefore, Han Yi directly adopted two methods, selling the purified fine salt to rich households, and selling coarse salt to ordinary people.

It can only be like this when science and technology have not reached the level.

Therefore, the output of fine salt is actually not very high.

After finally producing the fine salt, Han Yi looked at the jar of pure white salt and was so moved that he wanted to cry bitterly. Then the first thing he did was to send several carts of salt to the palace, in order to wash away the coarse salt. The salt was replaced—who would have imagined that the dignified king and prince of Qin still eat coarse salt?

The essence of Han Yi's salt delivery was just to make Yan Zheng eat healthier, but in the end, he advertised the salt field in his hand.

Only this family has fine salt, and no other family has it. As a result, even if the royal family and Jiang Buwei, who control a large amount of salt industry, want to eat fine salt, they must get it from Han Yi.

Of course the difference is that Yan Zijian can eat it directly, but Jiang Buwei still has to buy it.

It was also because of this that the price of fine salt began to rise-salt was just needed, but the output of the saltworks in Han Yi's hands was there.

Strictly speaking, Furong County is not an ideal place for drying salt. It would be better to go south.

So even if he didn't set a too high price at the beginning, in the end, the price rose because of the scarcity of the quantity.

Han Yi watched helplessly as the net profit of fine salt was many times higher than that of coarse salt, without even thinking about it.

He looked at the recipe of salt-baked chicken in his hand and fell silent. Originally, he thought that there was not much difference in taste between coarse salt and fine salt, and maybe everyone would not buy it, so he planned to use the recipe of salt-baked chicken The dish promotes fine salt, and even contains private goods, saying that only fine salt can make the most perfect taste.

Now it seems... But there is no need for it, Han Yi simply gave the recipe to Yan Zheng, making this dish a special dish of the East Palace, well, Yan Zijian has to come to the East Palace if he wants to eat it.

Yan Zijian was also a little helpless about this, if it was someone else's prescription, if he snatched it from Yan Zheng, it was his son, so what if he took it?

However, when it comes to Han Yi, he doesn't know where Han Yi's hot spot will be poked, so the most prudent thing to do is to let Yan Zheng enjoy the things Han Yi gave to Yan Zheng alone, so he doesn't think about it. up.

Anyway, it's not that he can't eat it. If he wants to eat something, Yan Zheng will naturally order the kitchen to make it and deliver it.

Although the salt-baked chicken dish did not deliberately hype fine salt, it raised the price of fine salt.

The profit is high, and naturally some people will pay attention to the method of making fine salt.

Han Yi had a hunch for a long time, so thousands of people were stationed at the beginning, patrolling day and night, and even Duan was transferred to guard there, fearing that someone would sneak in.

Among other things, Yan Fei brought a large number of soldiers and horses here.

Of course, unless Yan Fei really wants to rebel, he won't call directly, but it is very possible to send some people to sneak over.

Han Yi thought of everything he could think of. If he hadn't been able to make the explosives more stable until now, he would have even stored some there just in case.

As a result, when Han Yi was counting the money and waiting for the tung tree seeds to mature, Duan sent someone to send a quick report: a thief came from the sea.