Back to Datang Jianzuo City

Chapter 214 Physics Lesson - Light

Students at this time are much more eager to learn than students in later generations. They not only maintain a novel mind, but also have a heart that wants to enrich the spiritual world.

There will definitely be poor students, and there will be those who can't learn, but when they see that the dogs in the same village are so eager to learn, coupled with the supervision of their relatives at home, they also sink their hearts and study hard.

What's more, the college also has generous scholarships. With this scholarship, the family can live happily without working for a year.

They competed to learn, and they all wanted to be No.1 in that academy!However, under the supervision of Yin Zhiming, the teaching director, and the guidance of various teachers, there is no intrigue in the college, and there is only a good learning atmosphere.

When Ding Yi arrived, the students were already on the bench, looking at Ding Yi expectantly.

"Hello, Dean!" Yin Zhiming is worthy of being a shrewd person, and the arrangement of the scene is well enough, no more, no less!

When Ding Yi heard the deafening "Hello, Dean", his whole face beamed with joy.

"Hello, students! Sit down!" This feeling is really exciting, and he finally realized Li Er's feeling~

"Today, the dean will first of all give special praise to one person, and that is our physics team leader, student Li Tai!"

"He made something in the research institute, and it was this thing that made this open class!"

"Student Li Tai, come! Tell me what you found?" Ding Yi beckoned to Li Tai. He is Li Tai's dean in the academy, and he doesn't care about his status as a prince.And this is also to motivate Li Tai, didn't you see that the little fat man was in a bad mood after knowing that Ding Yi knew what he had made?

Li Tai was taken aback for a moment, and then he walked up to the stage with a telescope. He, Li Tai, the host, will not be frightened!

The students also looked at the little fat man in surprise, which satisfied Li Tai's little vanity!Ben Tai is still great!
"Hi everyone, I'm Li Tai."

Papapa~ This applause is a tradition of the college, and the specific reason seems to be suggested by an unscrupulous dean.However, this applause can indeed express some meaning, and it is also widely used by students.

"Everyone knows that I am the leader of the physics group. These days we are trying to make something that can observe some SJL in the laboratory of the institute."

"It's just that I was stupid and didn't succeed."

"In my spare time, I picked up two pieces of glass ground by a craftsman. And it is these two pieces of glass that have this thing in my hand—a telescope!"

"Just like its name, you can see farther with it, and you can see things you couldn't see before!"

The teachers and students were shocked

At the same time, I was confused, what is this?
"This is how I discovered the telescope, but when I showed it to the dean, the dean named it and asked us to gather here to hear him talk about the principle of the telescope!" Li Tai had already He guessed what Ding Yi was going to say, so he said it for Ding Yi, as revenge for being beaten.

Papapa~ Li Tai exits.

"Okay, today I'm going to talk to you about light!"

"Why can we see things clearly where there is the sun or a candle?"

"It's because of the light!"

"Who can tell me why I can't see my five fingers?" The classroom should pay attention to interaction and arouse students' interest.

No, someone in the field is eager to try!
"Qin Huaidao, tell me!"

"It's because no candles were lit!"

……

……

……

"sit down!"

"God, tell me!"

A student pointed at himself in disbelief, did the dean just call him?The dean knows my name?
"Because there is no light!"

"That's right! It's because of the light! Look at the sun!"

The students looked up at the sun hanging in the sky, some didn't quite understand.

"The sun is a big ball of fire! It's the one that lights up the place we live in, and the whole world!"

What!The sun is one big ball of fire!The students discussed one after another. The dean always had some amazing ideas, which proved to be correct afterwards. Could it be that the sun is really a big fireball?
"Today we are not talking about the sun, but light!" Ding Yi patted the desk to stabilize the classroom order.

"Look, everyone, this is the sun. The light it emits shines on the ground, so we can see things clearly." Ding repeatedly drew a circle covered in thorns on the blackboard behind him.

"Why is there a shadow?"

"It's because something blocks the light, and the place where the light doesn't reach becomes a shadow! It's not someone's soul!" This kind of thinking is bad, Ding Yi wants a group of atheists, and a group of people who want to discover unknown things Talented people, not mediocre people who attribute everything unknown to gods.

"Dean, why is the shadow shorter than the meeting time?"

Wow!This student has an idea and can ask this kind of question!

"Come on, look at the blackboard!"

"For example, this is the sun, and this is a person. And the light from the sun shines on a person, and if a person blocks the light, then there is no light behind him, and it becomes a shadow!"

"On this point, you can go down and study it yourself."

"Today we're going to talk about light!"

"Anything that emits light, we collectively call them a 'light source'. And the light it emits, we call it a 'light'."

"The light is all in a straight line, like this!" Two straight lines appeared on the blackboard.

"Of course, there are many rays, so many that we can't count them. Here we use these two to represent the edges of the rays."

"And these two straight lines are full of light. Use your imagination. These light rays are scattered in such a way. Can we concentrate them or disperse them?"

The students scratched their heads and scratched their heads. After nearly a year of study, they are no longer the ignorant children at the beginning, and their way of thinking has also undergone great changes.

Light source, light, shadow!
These puzzles filled their minds, and at this moment they suddenly realized that it seemed to be the case!
If it's cloudy at night, it's pitch black outside, and you really can't see your fingers.If you have a torch or candle, you can really see things!
It's just to concentrate or disperse the light, how can this be done?Things like light can be seen but not touched, how can this be done?
"The dean said that it is because of the light that we can see things clearly, so is it because of the light that I can see things in the distance clearly with a telescope?" Li Tai asked, today's class is really interesting.

"Haha, student Li Tai is very good at thinking! Yes, we can actually see very far, but because of the limitation of our eyes, we can't see clearly when we are far away."

"So, we need something to collect or disperse the distant light. In this way, you can see farther away, and even the stars in the sky will be clearly seen by you!"

…………

(End of this chapter)