Hua Shen stopped provoking him after the scourge of Lord Xu, and either rode outside to practice riding all day long, or nested in Siyu's carriage and grinding with others, singing a few modern pop songs and chanting a few pirated poems to Siyu, and the relationship between himself and Siyu was full of red. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

No, today he ran to Siyu's carriage again and pulled with others:

"I say, Miss Siyu, what do you think the land we live in and the sky we can see when we raise our eyes?"

"Heaven and earth? Didn't our ancestors and saints say that the sky is round and the earth is round a long time ago? What else could it look like? ”

Siyu tilted his head and looked at Hua Shen very strangely and said.

"Are the ancients right? Have you ever thought that if the earth is square, then the rivers, lakes and endless oceans have long since disappeared along the edge of the earth? ”

As soon as Hua Shen's words came out, Siyu was stunned, yes, if the land is square, then there must be a boundary, and if there is a boundary, it will fall, and the rivers, lakes and oceans will have already run out? The more he thought about it, the more confused Siyu couldn't help but ask Hua Shen:

"Then according to Childe's view, what should the place where we are look like?"

Hua Shen listened to what she asked, smiled very knowingly, reached out and picked up an apple beside him, and said to Siyu with a smile:

"Have you ever thought that the place where we live is a ball?"

Siyu was stunned for a moment, and said:

"Round? How is that possible? If it is round, how can we possibly stand? Stand up straight? And that must not be crooked? ”

Hua Shen laughed and said:

"Miss Siyu, you are wrong, if there is a chance in the future, I will take you to the sea to have a look, and then you will find that we must see the sails of the ship coming from a distance, and then we will slowly look at the whole ship."

Siyu didn't speak, but just looked at Hua Shen fixedly for a long time, and then sneered again, and said slowly:

"Na Siyu is looking forward to the future sea trip with Childe."

Hua Shen knew that she didn't believe it, so she raised her hand and threw the apple on the ground and asked:

"Miss Siyu, this apple will fall to the ground as soon as I let go, have you ever wondered why this apple doesn't float into the air, why doesn't it flutter to the left and right, but falls to the ground in a straight line?"

Siyu was stunned again, and secretly said in his heart, yes, why didn't this apple float into the air or move left and right, but fell straight to the ground? I didn't expect that the things that everyone has been accustomed to for thousands of years have been like this without any reasonable explanation, which is really puzzling.

Hua Shen looked at the stunned Siyu and said with a smile:

"Miss Siyu, in fact, this apple on the ground is not simple, this phenomenon can even cause a great progress in science, but this question is too profound, we won't continue to talk about it today, if Miss Siyu is interested, you might as well think about it yourself, and then we will discuss it in the future."

Siyu continued to look at Hua Shen without speaking, she was now more and more curious about Hua Shen, and she was becoming more and more incomprehensible.

Hua Shen didn't feel anything about Siyu's gaze at all, and said to himself:

"Have you ever wondered why we lean forward when the carriage comes to a sudden stop in the middle of the journey?"

"Do you know why the sky is blue and the sea is blue?"

Hua Shen drank tea, while showing Siyu his knowledge that surpassed the Ming Dynasty for at least hundreds of years, and asked Siyu's beautiful eyes more and more dazed, she never expected that these problems that no one would notice in ordinary life were so profound, she had read a lot of books since she was a child, and she had read a lot of different categories, but Hua Shen's problems, she really couldn't find a reasonable explanation.

She looked at Hua Shen, and finally couldn't help asking:

"Then according to Childe's opinion, how can these problems be explained?"

Hua Shen smiled, took out a polished polyhedral crystal pendant from his arms, and reached out to open the curtains on the carriage, and at the same time a beam of sunlight entered through the window, he raised the pendant in his hand, and said to Dao Siyu:

"Miss Siyu, you're optimistic."

After that, he put the crystal pendant under the sun, and suddenly a colorful light shot from the other side of the pendant, which was very beautiful, and Siyu was very surprised to see it, Hua Shen looked at her surprised look, and felt a little proud in his heart, so he stretched out his hand and explained to her:

"Miss Siyu, you see, in fact, sunlight is not only one color, it is composed of red, orange, yellow, green, cyan, blue, purple seven colors of light, these are what we can see, and there are many rays that we can't see with our human eyes."

"And the invisible light?"

Siyu looked up at Hua Shen from the light scattered from the pendant and asked.

"That's nature, in fact, it's not just light, it's also sound, there are also many sounds that we humans can't hear, and the reason why animals like cats and dogs have good night vision and sensitive ears is because they can see more light and hear more sounds, of course, these are not the point, today I will first talk about why the sky is blue, not red, yellow or green."

"Then Siyu is going to ask my son for good advice."

Siyu picked up the teacup and saluted Hua Shen, and said to Hua Shen with a smile on his face.

"Well, Miss Siyu, you have also seen that there are seven kinds of light scattered from the pendant, one of which is blue, because there are a lot of dust and invisible particles under the sky where we live, and when the sunlight is wearing these particles, it will be scattered, and among these seven kinds of light, blue light is the most likely to scatter, so the sky can show a blue color."

Hua Shen said while drawing and explaining to Siyu, a good image of a qualified physics teacher.

"Siyu, do you understand?"

After Hua Shen got over the addiction of the physics teacher, he asked Siyu very satisfied, it was really like a teacher teaching students.

"I don't think I'm talented, but I understand it a little, and I have been taught by my son."

Siyu replied to Hua Shen a little depressedly, she has been smart since she was a child, and she understands a lot, but she didn't expect that one day there would be something she couldn't learn.

Hua Shen waved his hand, picked up the teapot and poured a cup of tea for Siyu, and Siyu was so surprised that he quickly got up and took the teapot in his hand, he smiled indifferently and said:

"Miss Siyu, don't be humble, these things are something you have never heard of, and now you can understand a rough idea, it already shows that you are extremely smart in Bingxue."

"As for this pendant, it's a small gift for Miss Siyu, and I hope you don't dislike it."

After that, Hua Shen sent the pendant to Siyu, and Siyu happily accepted it, and kept shining in the sun there, and he was quite happy.