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

Chapter 284 Can Make a Fire!
The discussion of the three of them was naturally heard by Su Feng, especially what Li Jing said, with the help of the convex lens, it can help many people with bad eyesight.

The fact seems to be the case!
When glass is made into glasses, doesn’t it benefit many people with poor eyesight?

in the next time.

Li Jing and Li Tai kept playing with the convex lens, as if they wanted to figure out the principle.

It wasn't until the convex lens almost melted that the two of them smacked their lips a little bit.

of course.

They knew very well in their hearts that Su Feng's use of ice cubes was just an expedient measure, and all the materials used in the next products were glass.

"My lord, why don't we try it too?" Li Tai shook off the water stains on his hands, looked at Su Feng with interest and said.

This is the first time he has voluntarily made such a request, precisely because he has developed a strong interest in this thing now, and if he wants to truly understand the principle of it, it is best to make it himself.

obviously.

He has already understood Su Feng's painstaking efforts!

Of course Su Feng was very happy about this, and immediately agreed to Li Tai's request, and helped them throughout the whole process, letting them make the convex lens by themselves.

Especially the subsequent polishing part, which needs to be made very finely, Su Feng is not the slightest bit impatient, which makes Li Tai and others very moved.

Not long after, with the efforts of several people, several convex lenses were produced and placed neatly beside them. Due to their special shape and polished smoothness, under the sunlight, the convex lenses looked like very beautiful.

Seeing the strong sunlight immediately made Su Feng think of another interesting thing.

and.

Once this matter is done, it will directly shatter the cognition of these people.

"This thing actually has another important function, that is, as long as there is sunlight, it can directly generate fire, and it may save lives at critical times!" Su Feng said with a smile while playing with a convex lens.

really.

As soon as he said these words, Changsun Wuji, Li Jing and others who were playing with the convex lens immediately stopped what they were doing and stared at Su Feng in shock, unable to react for a long time.

It is precisely because they know Su Feng so well!

Know that everything that comes out of the other party's mouth will eventually become a reality.

That's the point.

The convex lens they are holding now is actually made of ice. Ice and fire are two completely different concepts, and it is impossible for them to appear at the same time.

not to mention.

The use of sunlight can only melt the ice faster, so how could there be fire?

"This...it shouldn't be possible, right?" Changsun Wuji expressed his denial in front of Su Feng for the first time.

He has strong confidence in this. Many problems in the past, perhaps because his knowledge and theory are not enough, he is convinced of these.

But now the problem is different!

Ice and fire interact with each other, and the convex lenses they created don't even exist for a long time, so how could they produce flames?

Li Tai and Li Jing nodded one after another, but even so, their eyes were full of anticipation, as if they were willing to see the scene Su Feng said.

"Everything in this world is incomparably wonderful. Many problems seem impossible on the surface. As long as special arrangements are made, unexpected effects will be produced!" Su Feng said with a smile.

As soon as he finished speaking, a sense of mystery seemed to be immediately shrouded in his body.

Subsequently.

Under the expectant eyes of Changsun Wuji and others, Su Feng first found a pile of hay, and then took the convex lens to face the sunlight and began to adjust the angle.

When the sunlight was gathered to one point, Su Feng gathered the subtitles on the dry grass, and began to wait quietly.

Every movement of Su Feng was clearly seen by the three onlookers, but the more they were like this, the more confused they were.

They seem to understand what's going on!

It is to gather sunlight, as if using a bronze mirror to reflect sunlight. Can this method really produce flames?
With strong doubts, the eyes of the three were always focused on the little sunshine on the dry grass. As time went by, things finally changed wonderfully.

On the pile of hay, subtle smoke actually began to appear. From the point where the sun's rays gathered, thick smoke and red color began to appear.

Less than a quarter of an hour later, while the three were stunned, the pile of dry grass actually started to burn, and quickly turned the whole pile of dry grass into ashes.

It was quiet all around, except for Su Feng, everyone else opened their mouths wide open, Changsun Wuji even lost the ability to think.

He was very confident this time, and even denied Su Fang's idea face to face, thinking that such a thing would never happen.

But the truth slapped him hard in the face!

Even such unimaginable things can happen, how much unknown knowledge does Su Feng possess?
"This... this is actually true!" Li Tai murmured in shock.

After following the fishing boat back, he had just witnessed the power of wisdom, and now something incredible happened again.

Today's Li Tai is full of strong curiosity about Su Feng, especially the knowledge in his mind.

Li Tai secretly vowed that in the future, following Su Feng's side, he must do everything possible to learn, and he would never miss any opportunity.

"The convex lenses made of these ice cubes will melt, but those made of glass will not. In the future, taking these things with you may really bring unexpected surprises!" Li Jing loves the convex lenses in his hand even more.

He deeply agrees with what Su Feng said before!
In the process of marching and fighting, anything can happen. If you lose the ability to make fire when the sky is freezing, it will bring great danger.

I don't know when a similar situation will appear. In many cases, even if I know what will happen next, there is nothing I can do as a general.

But now it's different.

If you carry a convex lens made of glass with you, you no longer have to worry about losing control of the fire. As long as there is sunshine in the sky, you can prepare in advance to prevent the same thing from happening.

"This is the principle of the telescope. It can gather light sources. When two different convex lenses are combined with each other, you can see far away!"

"As I said before, if the conditions are right, even the moon in the sky can be seen very clearly..." Taking this opportunity, Su Feng explained the principle of the telescope with a smile.

Simultaneously.

Everyone also looked up at the sky, their eyes full of yearning...

……

(End of this chapter)