Fantasy Three Kingdoms: Four knots in Taoyuan at the beginning

Chapter 146 Chapter 143, Optical Science

From small to big?

Does pinhole imaging count?

It is said that this thing is recorded in Mozi, don't they know?

"When the scene arrives, there is Duan in the afternoon, and Jing Chang. Say it in Duan."

"Scenery. People of light, if they shine, those who are below are also high; those who are tall are also down. The feet cover the light, so the scenery is above; the head covers the light, so the scenery is below. There are distances and nears. Duan, with Yu Guang, is also inside the old scene storehouse.”

And the shadow puppet show is based on this principle, so they probably don't know about it.

Asked if he didn't understand, Chen Yuan directly asked Zhao Yun, "Zilong, do you know Mozi?"

Zhao Yun nodded: "Mozi is the first sage of the Mohist school. He has the ability to predict ghosts and gods, so Yun naturally knows it."

The sage of the Mohist school is right, what is this unpredictable power?

Leaving it alone, Chen Yuan continued to ask: "Then do you know that small holes form?"

Zhao Yun thought for a moment: "I don't know."

???

You do not know?

Chen Yuan was a little surprised. Could it be that Mozi's things have not been passed down?

Chen Yuan walked to the gate of the courtyard thoughtfully, "Sir, please see me again."

After saying that, the gate of the courtyard opened without wind.

In this regard, Chen Yuan has long been accustomed to seeing the strangeness, as an expert, he has to highlight his own style.

If a person is used to open the door, what kind of expert is it?
Chen Yuan walked into the room, Tong Yuan looked at Chen Yuan: "Your friend, did you manage it?"

Chen Yuan didn't answer Tong Yuan's question, but asked, "Sir, I have a question for you."

Tong Yuan smiled and said, "If you have something to say, it's okay to say it."

"Excuse me, sir, do you know the small hole imaging of the Mohist school?"

Tong Yuan thought for a while: "I do know the Mohist school. Mozi, the first sage of the Mohist family, had an earth-shattering cultivation, comprehended the changes between heaven and man, and had reached a state of detachment, but what is the image of the small hole?"

Chen Yuan suddenly understood.

Probably many things of the Mohist school have been lost.

This includes small hole imaging. The so-called shadow puppetry is probably something that people associate with when they see their own shadows falling on the wall in daily life. It may have nothing to do with Mohism's small hole imaging.

Come on, let me give you some popular science.

Chen Yuan walked to the window and looked at the sky. The sunset was setting in the west, and the afterglow was everywhere. The sky was full of sunset, and the scenery was magnificent.

After a while, the night finally overwhelmed the day.

Chen Yuan asked someone to light a lamp, and then brought over a blank piece of paper.

There are Tong Yuan and Zhao Yun in the house.

Chen Yuan said to the two: "Next, I will demonstrate what is called small hole imaging, that is, small things make big things."

Hearing this, both Tong Yuan and Zhao Yun became energetic, staring at Chen Yuan intently to see what Chen Yuan was going to do.

Even Tong Yuan secretly released his aura to cover the entire valley, but any slight movement would be greeted with a full blow from the world's most unparalleled expert.

Tong Yuan did it silently, Chen Yuan didn't feel it at all.

Chen Yuan used the tip of his sword to pierce a small hole in the center of a wooden board.

The small hole is about three millimeters in diameter, manage to stand it upright on the table.

Then hold the candle and place it near the small hole.

Take a piece of white paper and place it on the other side of the hole.

Then a magical scene happened, an upside-down candle flame appeared on the white paper.

When Chen Yuan moved the candle, when the white paper was closer to the candle, the image was small and bright; when the white paper was slowly moving away from the candle, the image gradually became larger and the brightness dimmed.

Confusion flashed across Tong Yuan and Zhao Yun's eyes, they had no idea why.

Chen Yuan also ended his experiment.

He pierced several holes of different sizes and shapes on the board again, with a distance of a few centimeters between the holes.

At this time, several inverted images corresponding to the small holes appeared on the white paper.

They are all the same size, but with different degrees of clarity, the larger the hole, the less clear the image.

As long as the hole is small enough, whether its shape is square, round, or oblate, it has no effect on the clarity and shape of the image.

Seeing this scene, Tong Yuan and Zhao Yuneng were even more confused.

After Chen Yuan finished the experiment, he looked at Tong Yuan and Zhao Yun: "Does this count as small success?"

Indeed, the imaging of Chen Yuan's small hole really magnifies the candle.

To be honest, if Chen Yuan could invent the magnifying glass and the telescope if he hadn't produced glass with relatively high purity, then it would be small and big.

Now that Chen Yuan has done it, Tong Yuan will definitely not deny it.

However, he didn't understand the reason behind it.

Tong Yuan nodded first: "You have passed the level of making a big one out of a small one."

"However, what is the truth of this, please let me know."

As expected, Tong Yuan is worthy of being a master of the generation, he just asks if he doesn't understand, he doesn't pretend to be an expert when he doesn't understand at all.

Although Zhao Yun didn't speak, he was also full of doubts.

Naturally, Chen Yuan didn't mean to treasure himself.

"The pinhole imaging is related to a science. This science is called the science of light. If we want to know why there is pinhole imaging, we must first know what is light?"

"Sir, Zilong, do you know what light is?"

Tong Yuan and Zhao Yun thought about it.

Light is the most common thing, but they really haven't studied what light is.

Now suddenly asked by Chen Yuan, Tong Yuan and Zhao Yun really couldn't tell for a while.

Chen Yuan smiled secretly, not to mention you, even if you are a modern person in his world, if you suddenly ask a person what light is, you will probably be confused.

Lao Tzu, the first sage of Taoism, said that we are as light as dust.

There are also sentences in the Songs of Chu that are as bright as the sun and the moon, and the poems in the Book of Songs that the night is still young and the light in the courtyard are even more yearning.

But what exactly is light?

Of course, Chen Yuan would not talk to Tong Yuan and Zhao Yun about light in philosophical meaning, that would be too complicated.

Therefore, Chen Yuan only talked about light in the physical sense with them.

"Light is both a wave and a particle."

"Under normal conditions, light travels in a straight line."

"There are states where light travels in waves, like water waves."

"The speed of light is extremely fast. With such a long distance from the sun to the earth, it does not take a quarter of an hour to reach it."

Then, with his shallow knowledge of physics, Chen Yuan gave the two a science popularization on optics.

Although Tong Yuan and Zhao Yun couldn't understand some parts, there were many things that both of them understood.

Zhao Yun comprehended one of the mysteries of light, extreme speed.

And Tong Yuan, in a trance, comprehended the mystery of the unity of light and darkness.

Where there is darkness there is light, and where there is light there is darkness.

After comprehending one of the mysteries of light, Tong Yuan felt the trembling of the invisible sky tremble even more.

Tong Yuan's eyes became brighter.

Could it be that my chance really didn't work out with this kid?

A test has made him realize something, and even the sky ban began to loosen and tremble.

If he is really allowed to complete the three things, maybe there is hope of breaking the ban.

If that's the case, why not go to Xiangyang with him! ! !
(End of this chapter)