Datang: At the beginning, I wanted to rebel against my father-in-law

Chapter 283 Convex Lens!

"Hasn't Chang'an already opened a glass factory? This is the best opportunity..." Su Feng said with a smile.

to be frank.

He also didn't expect to be able to use the glass factory. The purpose of opening the glass factory at that time was to produce glass on a large scale and replace the window paper.

Now we can take advantage of this convenience and start building telescopes on a large scale to provide a lot of convenience for the court's military.

“However, if you want to build a telescope, you must understand its principles!”

Hearing what Su Feng said, Changsun Wuji immediately became interested. He has rich experience in this aspect, and he understands that there will be opportunities to learn next.

"Your Highness, don't be distracted next time, be sure to listen carefully to every word the prince says!" Changsun Wuji secretly reminded Li Tai.

Subsequently.

He coughed lightly, and came to Su Feng very seriously, "My lord, please enlighten me on the reason and production method of this!"

however.

This time Su Feng was different from the past. He didn't immediately spread the relevant theories and knowledge, but raised another question after a little thought.

"Now go find a piece of transparent ice. It must be of suitable quality, not too brittle or flawed!" Su Feng said after thinking about it.

The relevant knowledge here is a bit esoteric. In other words, people like Zao Sun Wuji are quite mysterious, and only by presenting the results in front of them can the subsequent matters be resolved.

really.

Hearing what Su Feng said, whether it was Changsun Wuji or Li Tai and Li Jing, they were all in a dazed state. They couldn't understand at all, what does this have to do with ice?
but.

They still have to do what Su Feng requested. Fortunately, there has been a large-scale snowstorm recently, and there are a lot of ice blocks on the mountains not far away.

Without any hesitation, Li Jing immediately led people to look for it, and soon found the ice cube Su Feng asked for, which was transparent and hard without any impurities.

Looking at the piece of ice in front of him, Su Feng nodded in satisfaction, then picked up the dagger that he carried with him, and began to tap on it.

In this case, ice is the best choice because it has the same properties as glass, and it can be easily modified by yourself.

soon.

This large piece of ice became smaller in Su Feng's hands, and finally became a circle the size of a fist. Just when everyone thought it was over, Su Feng started to polish the piece of ice again.

With Su Feng's very meticulous polishing, a convex lens soon appeared in his hand.

This is not a difficult task for him!
Looking at the convex lens made of ice cubes in his hand, Su Feng put it in front of his eyes and looked at it. The effect is very good. The weather at this time is also quite suitable, and the ice cubes will not melt very quickly.

then.

He put the convex lens he had built in his hands directly into Changsun Wuji's hands.

"Let's take a look first, what's the difference between this thing?" Su Feng looked at Changsun Wuji and the others with a smile and said.

Under such circumstances, he habitually began to think that you have your own method, guiding people to start thinking, teaching them relevant theoretical knowledge is one aspect, and the most important thing is to let them develop their own thinking ability.

This is what Su Feng has been doing all along!

Changsun Wuji obviously understood this truth, so when he got the convex lens, he put it in his hand and watched it carefully, hardly missing any details.

Not only him.

Li Tai and Li Jing also gathered around, watching almost inch by inch. Unfortunately, in their eyes, this is still a piece of ice.

Even if Su Feng polished it into this strange shape, it didn't seem to change anything. The essence of this thing is a piece of ice, which will turn into a puddle of water in a short time.

This made the three of them become impatient!
Su Feng's approach is obviously not simple, there must be some key problem, but they just can't control it, Changsun Wuji's face is getting uglier and uglier.

At the end, he let out a long sigh, "My lord, we really don't see anything special about this thing!"

to be frank.

Every time such a time came, Changsun Wuji felt sad in his heart. After so many years of getting along, the gap between him and Su Feng was still so big.

The other party has already placed many things in front of me, but I just don't have the ability to discover them.

"Put these things in front of your eyes, and then observe some subtle objects through this thing, and you will immediately notice the difference!" Su Feng was not in a hurry, and reminded in a calm voice.

Changsun Wuji was stunned for a moment, looked at the convex lens polished by ice cubes in his hand again, and then, according to Su Feng's method, placed it not far away from his eyes, and then looked at a withered yellow leaf on the ground through this thing .

moment.

His complexion has never changed drastically, he blinked vigorously, looked away from the convex lens, and then repeated the previous action again.

"This is simply unbelievable..." Changsun Wuji murmured in shock.

Just now.

According to Su Feng's method, he can actually enlarge the leaves on the ground through the ice cube in his hand, and many things on it can be seen very clearly.

And after removing the convex lens, what was displayed in front of him was still a small leaf, and the things on it were not easy to see with the naked eye.

In other words... this small thing in his hand has the same function as a telescope, and the most frightening thing is that it is something Su Feng casually polished with ice.

"Your Highness, take a look!" Changsun Wuji took a deep breath, and handed the convex lens to Li Tai beside him.

Following the same method, Li Tai and Li Jing also personally experienced that the problem Su Feng mentioned was here, that things that have been simply modified by ice cubes can actually have the function of a magnifying glass.

"Is this the legendary physics knowledge?" Li Tai's breathing began to become short.

This seems to have broken his cognition!

To know.

He saw the whole process with his own eyes, it was just such an ordinary piece of ice, but it was beaten and transformed in Su Feng's hands.

In the eyes of any ordinary person, no matter how he operates, this is always a piece of ice, which cannot change any problems at all, but the fact is in front of him, this ordinary piece of ice has the function of magnification.

"If this thing is replaced with glass, it can be used permanently. In the future, some people with poor eyesight may use this thing to make it more convenient!" Li Jing even discovered another problem.

In the military camp, he has seen many people with bad eyesight. With the help of these things, this problem can be easily solved...

……

(End of this chapter)