Datang started from being a salted fish

Chapter 489 Magnifying Glass

"There's no need to talk about the salt-boiling method. Just boil the water in a large pot and it's done." Wang Yin nodded: "Let's talk about the salt-drying method."

Originally, Wang Yinzhuo used filtration to remove impurities, but now that he saw this purification machine, he could save on filtration: according to the efficiency of this device, a few four or five units would be enough to supply the salt demand of the entire Datang population. , the main problem now is not purification but not so much salt for purification. . .

"Sea water can produce salt, you know? In fact, not only sea water, but also some lake water." Wang Yin looked at Li Shimin and asked tentatively.

After all, many things are different from the history after he traveled here, and he is not sure how the current Datang makes salt.

"There is such a thing?" Li Shimin was surprised when he heard this, obviously he didn't know.

The current situation in Datang is: basically all the salt is mined in wells, and the sea water and lake water can produce salt immediately. I have never heard of it!

Wang Yin took a look: Well, it is probably caused by the butterfly effect again. . .

After all, those people by the sea have lived for generations, so they should have discovered this kind of thing a long time ago?
But it doesn't matter if they knew it before or not, now they know it.

So Wang Yin briefly explained to Li Shimin how to dry salt in seawater and lakes.

In fact, Wang Yin's method is also very simple and rude: anyway, there is a purification machine now, as long as the water is evaporated to leave salt crystals, it will be over~
When people in the room heard that salt could be produced so easily, they immediately looked at each other in blank dismay: It never occurred to me that we are guarding so much salt and still have such a shortage of salt every day. This is really a bit ironic. . .

"I'll go back and arrange it now!" Li Shimin got the method of making salt, so he couldn't sit still, and he was going back to make arrangements on the spot.

After all, Datang has been plagued by salt shortage for so long, not to mention the troubles of well salt refining, and some people deliberately drive up the price of salt, so many people can only barely replenish a little salt by rinsing salt cloth. . .

Now that there is such a simple solution, what are you waiting for? !

You must know that if this person does not eat salt for a long time, his body will have no strength, and he will be more likely to get sick. How can this salt cloth provide some salt?

At most, it has a little taste, and the taste is really not good. . .

If the problem of salt is solved, the common people will be healthy and have strength one by one, so that they can better contribute to the development of Datang!
And if there is enough salt, the combat effectiveness of your own army can also be improved by a few percent. After all, if you have strength in your body, it will be better than before. . .

"What are you panicking about?" Wang Yin knocked on the table: "Although it said it was drying salt, it didn't say that you should directly use the sun to dry it, that would be too slow."

"Sometimes you can get twice the result with half the effort with the help of some tools," Wang Yin said while taking out a magnifying glass and putting it on the table: "For example, this one."

"???" Li Shimin looked at the magnifying glass on the table in bewilderment, not knowing what Wang Yin was trying to play.

"I know! It's the magnifying glass that gathers the light to generate heat!" Li Tai slapped his forehead and shouted when he saw this.

He had read about this in a book in the room before, and originally wanted to ask Wang Yin for one, but he couldn't take care of it later when he got busy.

"You're such a clever little ghost!" Wang Yin laughed when he saw this, and then gave Li Tai a thumbs up.

"Hehe..." Li Tai smirked when he saw this, he was still very happy to be praised by Wang Yin.

The only unhappy person is probably Li Shimin. . .

Li Shimin watched the two chatting and laughing there, and he was only confused except for being confused: No, no one of you intends to explain to me what's going on?Why does it feel like I'm being kept in the dark right now? !
Also, Qing Que, why are you so blind right now?

Am I still confused if I didn't see you? !
Ma De, I said you were a good kid before, why did you stop cooking at a critical moment? !
"Try it and you'll know." Wang Yin looked at the sunny outside, then signaled to Li Shimin, and then walked out.

Although it was already evening, the sun outside was quite sufficient, and Wang Yin was very satisfied to see the sun cooperate so well.

It's already spring now, it's definitely not practical to find some dead leaves or something, so finally Wang Yin simply took out a piece of paper and put it on the ground.

"Okay, then you can come." Seeing Li Tai's eagerness to try on his clothes, Wang Yin simply handed him the magnifying glass.

"Thank you Brother Yin!" Li Tai's face was filled with joy when he saw the magnifying glass, as if a child got a new toy.

Immediately, Li Tai adjusted the height with the magnifying glass, and when the light spots on the paper were focused to the most suitable position, he held the magnifying glass and stopped moving.

Seeing this, Li Shimin wondered: What is this for?This point of light looks dazzling, but what is the use of it?Could it be that you still expect to be able to light this paper?
Then he saw that the paper was slowly being given away. . .

At first, the place illuminated by the light spot started to turn black, and then the paper started to burn. Li Shimin was stunned when he saw this scene.

"Wang Yin...is this magnifying glass made of glass...?" Li Shimin asked uncertainly.

"Yeah, what's the matter?" Wang Yin looked at him suspiciously, wondering why Mao Li Shimin looked constipated now.

"Then those sold glasses..." After saying this, Li Shimin was in a bad mood.

You must know that many rich people in Chang'an City have bought some glass and installed it back, and their own palace is even full!

Since this thing can light the paper, wouldn't his own palace be in danger?

No, no, not only the imperial palace, but the entire Chang'an city will be on fire by then? !
"Are you stupid?" Wang Yin was speechless when he saw this: "Didn't you see that this thing is protruding on both sides?"

Wang Yin was almost defeated by Li Shimin's strange brain circuit: "Furthermore, the glass has been installed for so long, where do you see it being lit?"

"..." After Wang Yin said this, Li Shimin suddenly had nothing to say.

In fact, he can't blame him entirely, after all, seeing the magnifying glass light the paper just now really shocked him, and his mind immediately thought of the terrible consequences.

Besides, the magnifying glass that Li Tai is holding is not very big now, Li Shimin just now was too busy looking at the spots of light on the ground, and didn't pay attention to whether the mirror surface is flat or convex. . .

"Wang Yin, do you mean to use this kind of thing to increase the temperature of the sun to dry salt?" Li Shimin quickly changed the subject to avoid further embarrassment.

(End of this chapter)