Chapter 229 I see you, just like a mayfly seeing the sky

"Sound waves? Light waves?"

Inside the room, the priests who were listening attentively fell into a moment of confusion.

One of the priests asked in confusion, "Your Excellency said water waves, and we all understand, but does this sound also have waves?"

Zhao Duan smiled slightly and said firmly:
"Of course. In fact, water waves and sound waves are the same."

He then picked up the pen in his hand and knocked it on the bookshelf next to him, making a "bang" sound:
"Look, how the sound is produced is when the pen collides with the bookshelf, causing vibrations and making sounds. If you throw a stone into a pond, will the water surface also vibrate and make sounds?"

In a world that is severely lacking in relevant concepts.

When Zhao Duan explains something, he has to give up rigor and pursue simplicity and understanding.

Sure enough, as soon as these words were spoken, the priests inside and outside the house suddenly understood and felt that they made a lot of sense.

Gongshu Tianyuan nodded and said seriously:

"What you said makes sense. Just like if the surface of a drum is covered with dust, if we hit the drum hard, the dust on the drum skin will also vibrate like water waves."

After a pause, he frowned:
"But, for this sound to go from one place to another, does it need any medium to transmit it?"

"Haha, Brother Gongshu is very attentive and uses vivid metaphors," Zhao Duan praised him first, and then said:

"Of course. Well, for example, last time I led the soldiers to capture a wanted warlock.

Well, Priest Jin Jian was there at the time. His opponent believed in the God of Wind, and during the fight, he actually sucked the air away from me, causing me to suffocate.

At that time, I called for help from Priest Jin Jian, but found that we could not hear each other. "

outside the room.

A priest excitedly echoed:
"Yes, there is such a magic. I have encountered it before and I couldn't make a sound. But I don't know why."

"So, does that mean that the 'medium' required for the propagation of sound is air? If the air is drained, the sound cannot be transmitted."

Everyone was discussing that most of the priests here were not craftsman gods.

But it does not prevent them from listening to the fun and taking part in the discussion.

Zhao Duan smiled and nodded:
"You are right. Similarly, the reason why water waves can exist is because water itself is the medium of the waves."

The short and fat young man Gongshu Tianyuan frowned:
"Your Excellency is right, but what about the light waves? Since they have extracted the air, they can still see each other clearly, which means that light does not rely on air to spread. Then what does it rely on?"

Oops... I think I said it out of turn. Does light need a medium to propagate? It seems that it doesn't need a medium at all...

Well, unless we bring out the concept of "ether"... Alas, there is no other way. This knowledge has been useless for many years, so I will return it to the teacher after I start working...

Zhao Duan choked and realized that he seemed to have said something wrong.

However, Lord Zhao is a man who has been tested many times. Although he feels nervous inside, he still looks calm.

He even showed an expression of admiration for those years and said with emotion:

"Brother Gongshu is indeed a disciple of the Heavenly Master. He asked the key question casually!"

Gongshu Tianyuan couldn't help but straighten his chest and feel proud.

Zhao Duan coughed lightly and said seriously:
"To explain this, we must first clarify what light is and what light waves are. In my opinion, everything in the world is made up of a kind of basic particles, just like a piece of stone, which is crushed into particles of dust...

The same is true for water and light... because they are made up of particles.

The particles are disturbed by external forces at all times, just like dust moving in the wind. The particles influence each other and become light waves..."

Zhao Duan felt a little guilty when he said this.

Because according to the concept of wave-particle duality he remembered, light itself is both a particle and a probability wave...

But this thing is too abstract, and it also involves the concept of "field"... He is not an expert here, and he only has a superficial understanding of it.

So after some hesitation, I decided to explain it in a way that is easier to understand...

Anyway, it's too abstract and these people can't understand it at all.

And it's too advanced and unnecessary.

……

In the small courtyard.

Xu Zhenguan looked at the water curtain with a strange expression while Zhao Duan talked freely.

I couldn't help but turn my head and look at the old Taoist priest:
"Are all things in the world really made of 'dust'?"

Zhang Yan was silent for a moment and did not comment.

Just vaguely said:
"Haha, how can mortals guess the mysteries of heaven and earth? However, what this person said is indeed an interesting hypothesis."

The old Taoist priest seemed calm, but he was actually equally confused.

According to Taoist doctrine, the heaven and earth are composed of Yin and Yang Qi and the Five Elements... But Zhao Duan went a step further and broke both Qi and the Five Elements into particles...

If someone else had said this, Zhang Yan would have just laughed it off.

After all, there is no shortage of lunatics in the world.

But the person who said it was Zhao Duan, who could always express extremely insightful opinions...the old Taoist priest was a little unsure.

"Let's see how he continues." Zhang Yan said.

Xu Zhenguan nodded and turned his gaze to the water curtain again.

……

inside the room.

Zhao Duan cleared his throat and said with a smile:
"After talking about the appearance of light, we now have the topic of how light travels through a medium. Unfortunately, I cannot give an answer to this question, and I am still exploring."

After these words were spoken, many priests started to discuss the matter in a commotion.

However, Gongshu Tianyuan's small mung bean-like eyes became brighter and brighter.

He rebuked the discussion in a deep voice and said seriously:

"There are countless mysteries that we, the Taoists, do not know. How can we know everything? Your Excellency is the character that a Taoist should have!"

A group of priests were immediately ashamed and looked at Zhao Duan with more respect.

Gongshu Tianyuan's fat face was filled with excitement:
"Your Excellency, please ignore them. Please continue speaking! Speak quickly!"

He realized that the next step was to understand the principle of refraction that had troubled him for the past few days. Zhao Duan smiled and nodded, saying:

"After explaining all of the above, we should know that the air-filled space and the suffocating underwater are two different media. How many of you have ever gone fishing by the river?"

Fishing?

Many priests immediately spoke up, saying that they had had such experiences.

Zhao Duan stood with his hands behind his back and said:

"Experienced fishermen will know that when we stand in the stream, holding a sharpened stick, and stab the fish swimming in the water, we cannot aim straight, but should point it downwards to stab it. Why do you think this is?"

"This……"

The priests looked at each other, and one of them had his eyes light up:
"Could it be that because of the different mediums, the image reflected by the light is misplaced?"

"That's right!" Zhao Duan praised, "That's the truth."

He used diagrams on the whiteboard to explain a series of things, and then said:
"This principle is actually familiar to you all. When you stay up late and feel tired, do you shed tears when you yawn? What happens at this time?"

Gongshu Tianyuan suddenly slammed the table, stood up excitedly and said:
"Clear! Things in the distance will be clearer! I understand! Tears covering my eyes are like light entering a stream, and the images I see are like fish swimming in the water..."

At this moment, the descendant of the God of Craftsman was excited.

The brain is racing.

I felt that the problem that had troubled me for three days and three nights suddenly became clear, and I murmured:
"So, using crystal to polish a mirror is equivalent to placing a special piece of water in front of a person's eyes at all times... through calculation, adjusting the light beam..."

"Wait, why is the human eye like this? Could it be that the human eye is also like a pool of water? Just as legs and feet become deformed when injured, human eyes also become deformed... This is why the vision is blurred..."

"Haha, I get it! I get it!"

At this moment, Gongshu Tianyuan kept muttering to himself in a low voice.

Not sleeping for several days in a row and madly straining his brain cells had already made him emotionally unstable and in a trance.

This will suddenly break free from the shackles and make him almost dance with joy.

The other priests all looked at him sideways.

"Senior Brother Gongshu has gone crazy again. The last time he was like this was a few years ago..."

"What did you understand, brother? Why don't I understand it?"

"Where on earth did Zhao Duan learn this skill? He could make Senior Brother do this with just a few words..."

The crowd was buzzing.

Zhao Duan was also very surprised, because this fat man's comprehension was a bit amazing.

After all, he had forgotten most of this knowledge, and only remembered the general idea of lenses and the like.

So, what he talked about were mostly conceptual things.

And I am not even sure whether what I said is right.

But true genius does not need careful teaching.

Just give him a direction and a little inspiration, and he will complete everything on his own.

Gongshu Tianyuan, who inherited the legacy of the God of Craftsmen, is of course an extremely talented person.

It’s just that science is severely suppressed in this era.

At this moment, Zhao Duan's simple conceptual words were like a fog, confusing the other priests.

But to Gongshu Tianyuan, it was like a sharp axe that split open the thick fog before his eyes.

Just like a mayfly seeing the blue sky.

"Brother Zhao!"

Gongshu Tianyuan restrained his smile.

He strode forward, grasped his hand with both hands, and shook it sincerely, his fat face flushed:
"Listening to your words is better than listening to my master countless times!
This is the direction I have been pursuing. When I created those talismans before, I mostly relied on magic, but what Brother Zhao said today has nothing to do with magic, but it has the true meaning of the God of Craftsmanship. "

"...Brother Gongshu, you are too kind. The Heavenly Master is such a great figure. I am just speculating randomly on a daily basis, and I have read some scattered books. I am making wild guesses. I cannot trust them. Haha, I cannot trust them..."

Zhao Duan smiled stiffly and tried hard to pull his hand back.

I just said a few words casually, and the effect far exceeded my expectations.

Gongshu Tianyuan also realized that he had spoken out of turn in his excitement, so he quickly tried to find a few more words to make up for it, and then he said:

"In short, what Brother Zhao said today is thought-provoking. If you need my help in the future, feel free to come and find me. Hey, do you need any talismans? For example, this paper skirt can be used by the women in your family..."

"...No need!"

Zhao Duan glanced at the shelves, seeing a large number of strange magical instruments with bizarre functions, and shook his head in rejection, speaking righteously.

"Okay, I've kept you busy for a long time, but please don't upset His Majesty. Brother Zhao, please go and do your work. I still need to digest what you taught me today."

Gongshu Tianyuan looked regretful.

There is a sense of loss that one's own treasure is not appreciated by others.

"In that case, I'll take my leave first." Zhao Duan said with a smile.

For him, gaining this network is the greatest gain.

……

Russian qing.

Zhao Duan hurried back to the hall where the palace guards gathered.

Then, the empress in a light gauze Taoist robe slowly walked out from the third door, and the waiters stood up to greet her.

"Your Majesty? Have you finished talking to the Heavenly Master?" Zhao Duan was stunned.

Xu Zhenguan nodded slightly, staring at him with extremely complicated eyes.

He wanted to say something, but in the end he didn't open his mouth. He walked out and said lightly:
"Go back to the palace."

……

Help catch typos
(End of this chapter)

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