Qing Cang suddenly asked, how could Wang Zongwei know what he was holding? So he took the spherical object in Qing Cang's hand and looked carefully, and couldn't tell the reason. This thing was transparent, not much the same as the "glazed glass" they just mentioned, because there was no impurity inside, and it was not as colorful as glass.

Xu Dezhi said embarrassedly: "They are the products of our accident."

He wondered why Qing Cang wanted to show this thing to Wang Zongwei. Unexpectedly, Qing Cang said:

"This is a glass spherical body. It has a lot to do with the telescope in my hand."

Wang Zongwei exclaimed: "What? This glass ball is also related to a magical object like a telescope? I remember that the word glass mentioned in the book "Architecture and Planning" you gave me, but they are all described as large pieces and exist as building materials. This thing is so small and has different traits, and it seems that we do not produce glass at that level in our city!"

How can these two things be connected if they can't get together? Although they are modern generations, Wang Zongwei can still recall some of the descriptions of them in the book. They have the same names but different shapes, which makes him a little big.

Xu Dezhi also asked: "What's going on with the commander? It seems that the glass and the telescope are not the same thing, so how can it be related?"

Their unexpected product was actually related to the divine object telescope, and the two were completely confused.

Qing Cang said straight: "It's hard to explain so much to you. You just need to remember that this sphere can be used to build a telescope. As for the principle, I'll tell you now."

The two of them are excited now. They really want to get some related introductions from Qing Cang about the two.

He took out the paper and pen he carried with him and began to draw on the paper. He drew a concave mirror and a convex mirror respectively. He said: "In fact, the principle of a telescope is very simple. It is composed of these two sets of lenses, and a cylindrical thing is wrapped around it. The telescope in my hand has this structure, but it has some functional things, which are not something we can create."

Another cylindrical thing was drawn on it, which showed that when the two sets of lenses were placed together, a supported object protection was needed to achieve the best effect.

Then, he pointed to the eyepiece and objective lens of the telescope, compared the images on the drawings, and began to patiently introduce them, and drew a large number of structural schematic diagrams on the drawings, which only introduced simple principles...

This process took about ten minutes to talk about, and finally Wang Zongwei got some understanding.

Finally, he said: "What I want you to do is study the relationship between the two and create a telescope that can see farther."

Although he understood the principles, it was still difficult to make him build a telescope. He did not know how far the objective lens and the eyepiece were, and how much angle it would take to achieve the magnification. It would be better to leave this to Wang Zongwei for research, so that they could try more and find out the relationship.

The glass ball was unexpectedly seen when I was watching "Liuli" just now, so Wang Zongwei came here together and told him to study the telescope. It is actually not difficult to have the principle of this thing. The difficulty lies in how to make the telescope look further.

If it can be successfully studied, then its usefulness for marching and fighting is definitely no less than that of siege weapons.

Wang Zongwei asked a key point: "Then how should these two concave mirrors be produced?"

"At this moment, Xu Dezhi, you must cooperate with Minister Wang and try to produce the mirror he needs. Xu Dezhi, can you do it?"

"The spherical body held in the commander's hand is just an unexpected product, but I believe we can definitely produce these two mirrors. Because they can become soft when heated and their shapes can change at will."

Xu Dezhi made a promise. They dealt with metal all year round, and it should be no problem to deal with glass.

"There is another question. Regarding the material issue, I think there are two materials that can be used to make telescopes, one is a bamboo tube and the other is an iron tube. The telescope in the commander's hand seems to be a metal material?"

"Yes, this is a material called alloy. It has a light texture, does not rust, and has many benefits. But we cannot smel successfully at present. Let me tell you my opinion. Although bamboo tubes are everywhere, their durability is too poor and easy to damage. Although the iron tubes are not easy to damage, they appear too heavy."

"alloy?"

Another professional term made the two of them feel incredible.

"Yes, several metals or metals are fed together with other materials. They can be said to be a combination of great success. This thing should be introduced in smelting."

This explanation will be clear.

Xu Dezhi again showed a embarrassed expression.

"I seemed to have glanced at it, but the book was too thick and it was located in a relatively back position. But maybe I could use a lightweight metal that I have newly discovered. According to the technique of refining, its name is aluminum."

"Very good. From today on, the telescope will be left to you two to complete, especially Xu Dezhi's work is heavier, and you have to hand over three of you."

In addition to Wu You and Wang Zongwei, Xu Dezhi was also keeping in touch with the guys who were doing agriculture and creating a large amount of high-transparent glass for them, allowing them to successfully build greenhouses and plant vegetables, fruits and melons to complete the task of Qing Cangxia. If successful, the fields will not be idle all year round, and they will be able to support more people.

Xu Dezhi said: "Commander, please rest assured that as long as the number of people is sufficient and the dispatch is well-organized, it will not be difficult."

"That's true, then I wish you success."

"Thank you, Commander!"

Wang Zongwei said at this time: "Commander, can this telescope be left for us to study?" It is quite difficult to create a telescope out of thin air, but if there are samples for comparison, it will be different.

"Yes, but it's returned early after use. I want to explain here that this is a binoculars, and the difficulty of a single tube is even smaller. You can start with the single tube first."

Qing Cang left the telescope in his hand, and this thing could only be compared. It was impossible to dismantle it because there were no tools unless it was destroyed.

If the telescope can be built smoothly, then the telescope will be known 13oo years in advance. You should know that the first telescope was built in 16o8.

He also thought about the purpose of this telescope. In guards and patrols, he could reduce at least 90% of his troops and put more troops into battle. During the marching and war, the Chinese army could show the enemy's intentions in advance and prepare in advance. He would equip every division-level person with one, of course this thing must be easy to carry.
Chapter completed!