Watching Liu Ru and Tarina happily and self-care in the mirror, Li Guo felt amused. Although the mirror has been made before, the quality of the glass itself is not good, so the mirror is not very good. Now that the quality of the glass is better, smooth and clear, the mirror is different, and the person who reflects it is clearer, otherwise Liu Ru and Tarina can't put it down.

As soon as he turned his head, Li Guo saw Zhao Dagou and Wang Da Stick standing on the side. Li Guo also took out two identical things and gave them them.

"These two are for you." Lee aisle.

In fact, Zhao Dagou and Wang Dabangzi have also seen this thing. Li Guo secretly asked Song Yingxing to do it a while ago, and the two of them did not inquire about what it was based on the principle of not asking what should not be asked.

Li Guo got up early today, in addition to getting the mirror, the main thing is to see if this thing is made. Because Song Yingxing and the craftsmen are going to assemble this thing today. Therefore, before dawn, Li Guo couldn't sleep, so he quietly ran to Song Yingxing.

"Master Tiger, what is this?" Zhao Dagou stupidly took the thing handed to him by Li Guo, and looked curiously at this copper pipe with a thick end and a thin end.

Or the king big stick elf, said, "Hey, this thing seems to have been seen, by the way, this thing is in our sailors, it is the captured Portuguese trophies, and now it is assigned to the captain of the sailor, I heard that it is used to see the distance, but unfortunately we haven't seen it." It's just that now those captains are very cows, protecting this thing like a baby pimple, and no one is allowed to touch it. ”

Li Guo nodded, "Not bad." Westerners call this thing a clairvoyant mirror, and it can indeed see people and things in the distance. ”

Li Guo pulled the clairvoyant mirror in Zhao Dagou's hand, it turned out. There's also a section of copper pipe in it. Li Guo said to Zhao Dagou, "Big dog, go and see the tree in the distance, is it very clear?" ”

Zhao Dagou followed his words, according to Li Guo's instructions, closed his left eye, pasted the thin end of the clairglass to his right eye, and looked towards the big tree that Li Guo pointed to.

"Ahh Zhao Dagou immediately took down the clairvoyant mirror from his eyes. "Master, what's going on. The tree is in sight. ”

"You are looking, you can hear birds chirping in the distance, are there birds in the trees?" Li Guo said with a smile.

Zhao Dagou took the clairvoyant mirror and looked over again, "Oh, there are birds." Jumping on the branches in front of me! Even the feathers can be seen clearly. ”

Zhao Dagou said, stretched out his left hand, leaned forward, and grabbed forward. only heard a plop, and Zhao Dagou lay directly on the ground.

Zhao Dagou reacted at this time, and while checking that the clairvoyant mirror was not broken, he patted the soil on his body, and said embarrassedly, "I thought the bird had flown in front of me." ”

And Wang Da Stick also raised the clairvoyant mirror to look into the distance, and nodded in praise.

Li Guo asked, "You two talk about it." What's the use of this? ”

Zhao Dagou said, "Master Tiger, this thing can see far away, if the enemy comes from afar." We can find out early. ”

"Yes, if the enemy hides in the woods and lies in ambush, we can also use a clairvoyant mirror to check it." ”

Li Guo nodded with satisfaction, "Yes, what you said is very right, this thing can know the enemy in advance, it is very important." Now in the Ming Dynasty, only we have it. I'm planning every general above the ranks. Everyone must have one, so that the enemy will be the first to fight the war. This time, I made a few clairvoyant mirrors, and the two of you follow me every day and protect me, but it's hard work, so I'll distribute them to you first. ”

Zhao Dagou and Wang Dabangzi were very happy to see that they were the first to have a clairvoyant mirror under Li Guo, this is a matter of honor. The two of them were even more curious that the clairvoyant mirror could bring things in the distance closer to their eyes in an instant, so they took the clairvoyant mirror and looked around.

Liu Ru had never seen the clairvoyant mirror, snatched the clairvoyant mirror in Zhao Dagou's hand, and couldn't stop looking at it, and was amazed.

The clairvoyant is actually a monocular, and the barrel of the clairvoyant is very easy to make, and it is not difficult to make it with bronze. The difficulty lies in the lenses of the clairvoyant.

Because the telescope lens is to pour the glass solution into a mold cast into a thick cylinder according to the required caliber, and after the glass solution cools, a thick cylinder is formed. Because the requirements for lenses are very high, unlike glass, as long as they are flat and mass-produced. There must be no impurities in the lenses, no air bubbles, which would affect clarity. Therefore, only a dozen of the hundreds of glass billets in this batch are qualified.

The next thing is to grind, and the grinding machine is called Song Yingxing, which is called the grinding machine. However, the performance of the grinding machine is not stable, slow and fast, the sharpening of the sword is okay, but the fine grinding is still not good. So, after a few glass blanks have been worn out, some of the remaining glass blanks are ground by hand. It's a lot of work.

Fortunately, the iron pestle was sharpened into a needle, and the dozen or so glass blanks were ground in the end. The craftsmen also have experience in making zuò.

The glass blank is ground into a concave lens and a convex lens, one concave and one convex is a pair. It is easy to install by placing the concave and convex lenses at each end of the lens barrel. One end near the eye is a concave lens, and the outer end is a convex lens. These are based on the principle of refraction of light.

Li Guo is not going to sell clairvoyant mirrors, he can only match them to the generals at the staff level for the time being, after all, this thing Li Guo is going to use in the military, not in business. Because the clairvoyant mirror was extremely rare at this time, only some sea ships had it, and the vast majority of the Ming army did not have this thing at all.

Therefore, Li Guo is now just waiting to make more glass and mirrors, so that he can transport these things to Nanjing Mansion and the capital, to sell them, to make money.

Li Guo decided to sell it himself.

At the beginning, Li Guo just decided to take Nie Xin, Luo Hu, Zhao Dagou and Wang Da Bangzi, and was not ready to take Liu Rushi and Talina to buy glass together, he didn't think it was convenient.

"You two don't want to go, it's not easy to go all the way." Li Guo said to Liu Rushi and Talinea.

"No, I'm leaving, I'm not afraid of hard work, have you forgotten that I came to you from Nanjing Mansion alone?" Liu Ru is not as spicy as Huang Xiu, but he is also a maverick and will never relax when he determines anything. It's easy to have the opportunity to go out, so how can you not go.

"Sister Liu, I'll go too." Of course Tarina is going.

"You can't, you can't go." Li Guo said to Tarina.

"Why can't I go?" Tarina's mouth was already pursed.

"You don't know, it's not that I don't want to take you. There are a lot of restrictions on Portuguese people in the mainland, especially Portuguese women. Li Guo said.

Tarina's eyes were resentful, and her mouth was pouting.

Liu Ru smiled, "Just take her there, it just so happens that I still have a companion." We don't usually go out, so when we go out, we just wear a veil on our heads! ”

"That is, the dignified General Li can't do this?" Tarina counted Li Guo.

Li Guo looked at these two troublemakers and laughed unconsciously, "Okay, you will prepare in the next few days, and when the goods are ready, we will set off." ”

Listening to Li Guo's words, the second daughter jumped with joy. And I was busy getting up early and waiting for the departure. (To be continued)