"Qi'er, show her the glass."

Qin Qi'er handed his hand into Jiu'er's hand.

Holding the glass in his hand, even Jiu'er had to be careful, because he felt that this was a valuable thing, and if he bumped into it, it would be unforgivable.

If you look carefully at the glass in your hand, it is indeed beautiful.

Jiu'er wondered why Qin Qi'er was able to set the grass on fire with a glass in his hand, this glass could be seen clearly at a glance, and there was no entrance, how did he do it.

Pei Yun looked up at the sun in the sky and said: "It can light hay, it depends on the light, the light has temperature, and it will make people feel warm when they bask in the sun, if there is a way to increase the temperature of the light, it will not only be warm, then it can be used to light the hay." ”

Does light have a temperature?

This can make people understand that everyone has been exposed to the sun, and the sun can give people warmth.

But the light can ignite the hay, and there is a way to raise the temperature of the light......

Jiu'er looked at the glass in her hand and fell into thought.

Pei Yun continued: "It's very simple, light can pass through glass, and light through glass will find changes. ”

"To use an analogy, suppose a total of 100 rays of light pass through the glass, and the glass merges the 100 rays into one, so that the temperature of this ray is equivalent to the temperature of 100 rays, and the temperature of the light can be increased by this method."

The students, including Jiu'er, were stunned.

The sun is something that everyone comes into contact with all the time, and if you say that the sun has rays, everyone can still hear it, but if you say that you can change the light, isn't that nonsense?

The sun's rays are not a substantial thing, how can they be changed?

Pei Yun: "This is the mystery of Gewu, you can use everything you come into contact with, in addition to the sun's rays, there are also wind power, water power, all can be used, for example, kites use wind power, waterwheels use water power, in the same way, the sun's rays are also a kind of force, you can call it heat energy." ”

"There are a lot of uses for heat, and one of the uses is what you see, when the heat reaches a certain level, the hay is ignited."

"No matter how much you say, it's better to experience it than to experience it yourself, and you can use this glass to try to light the hay."

Jiu'er: "Me?" Can I do it too? ”

Pei Yun: "I said, you can do such a thing, as long as you can use this piece of glass." ”

"Do what I say, put the glass under the sun, and when the light passes through the glass, you will see a bright spot, and that bright spot is the light that is concentrated together, and the temperature of the bright spot where the light is concentrated will be increased, and the hay will be lit by the increased temperature."

Jiu'er did as Pei Yun said.

When she put the glass in the sun, there was indeed a bright spot, which let the bright spot fall on the hay beside her, after a long time.

Wow, the hay was set on fire.

Jiu'er's face was incredible.

It's true, I really did it.

As soon as Jiu'er was excited, she almost couldn't hold the glass in her hand, which scared her a lot.

If you really want to drop the glass, it will be a great crime.

In Jiu'er's heart, the value of this piece of glass has risen to another height.

Not only is it better than glass, but it also has such a magical effect, which is definitely a rare treasure.

Pei Yun: "Other people can also experience it for themselves and give the glass to others." ”

Hearing this, Jiu'er looked at Pei Yun in disbelief.

Such a rare treasure should be passed by everyone.

Here's how to think.

If you accidentally damage the glass, you can still pay for it.

Replace them with others and sell them, and none of the glass is worth anything.

Such rare treasures should be offered, and it is a luxury for others to look at them, how can it be possible for everyone to get their hands on them.

Jiu'er was looking at Pei Yun to confirm that it was not a joke.

Pei Yun: "Don't be stunned, the others are still waiting." ”

Beside Jiu'er, the other four students all looked at the glass in Jiu'er's hand with curiosity, and what they could see in their eyes was full of interest.

Glass was something they had never touched before, and it was incredible that it could ignite hay.

They were excited to have the opportunity to light the hay with glass themselves.

Everyone else was waiting, and Pei Yun said the same, so Jiu'er handed over the glass in his hand.

When I handed it over, I wanted to tell it, but in the end I didn't say anything.

Pei Yun himself is not in a hurry, he is in a hurry.

If you speak and advise, wouldn't it become the emperor who is not in a hurry and the eunuch is in a hurry.

Phew.

He is an emperor, and he is not a eunuch.

The other four students lined up, and each of them had a first-hand experience.

They did the same, using glass and letting the sun's rays ignite the hay.

For a while, I was very excited.

When they came to study, they actually had the mentality of giving it a try, but they didn't expect that it would open another door to the world.

Regarding what Pei Yun said, some of them understood, and some of them didn't.

What changes the world, what proves itself, they understand.

But what is the transformation of decay into magic, what sense of mission, they have not been able to understand.

And now, I seem to have a different understanding of what I didn't understand.

The fact that such a piece of glass, which can use the sun's rays to ignite hay, is a miracle that turns decay into magic.

I can't help but wonder how this is done, and it gives me a sense of mission, I want to know about it, I want to tell other people, there is such a thing that people never know.

Obviously, the students' perception of their own classes has changed dramatically.

They can't help but have thoughts in their hearts.

Is it true that you can change the world and prove yourself?

Before, this was something that he had never thought about, but now, he had a thought.

The reason is.

If you can turn decay into magic, then nothing is impossible.

Moreover, if you have a sense of mission in your heart, then you should strive for it.

If you really want to do all this, you can't do without one person.

The four students were all looking at Pei Yun.

Before class, their feelings about the identity of the teacher are just a title.

After class, they understood what it meant to be a teacher, and in their eyes, Pei Yun's image was completely different.

It turns out that such a person is called a teacher.

He wants to teach himself knowledge, let himself change the world, to prove himself.

He told himself what it means to turn decay into magic, and what is a sense of mission.