Students, please be quiet, Jiang Yaqing is right. Watson smiled slightly and said: This dream has woken up, because our dream has succeeded. Our country has now designed and built the world's largest, highest-tech, highest-tech, and deepest-diving sea, land, and air spacecraft, which we call Chang'elong. She has the instinct to dive and can also run on the highway like a car and take off like an airplane. She is the Changhe No. 1 and Hongguo Valley No. 1 of our Maple Gorge Hongguo Valley base. That's not enough, we have to invent and build our own flying saucer, and then we won't even have to dream! However, as students know, flying saucers are meant to fly in the sky. Just like a bird, it can't stay on another branch. So, classmates, who can answer me, what is the sky?

Li Zhuangzhuang first raised his hand and said: Report to the mentor, the sky is infinite.

Report to the Guru, legend says that God created the heavens. Xin Ruofei stood up and replied.

You're not right, the sky was chopped out by our ancestor Pangu with an axe. Qian Yifan hurriedly said.

Zhao Shiyan objected loudly and said: Opening the heavens and the earth, creating the heavens and the earth are all fake. The sky is the universe, and the universe is the sky.

Hey, Zhao Shiyan, isn't your explanation ambiguous? What is the universe?

Jiang Yaqing immediately replied: Report to the mentor, the universe is space, the universe is time, and together it is called the universe.

Watson smiled, looked at Liu Yiyi and said: Liu Yiyi, why don't you speak?

Reporting to the mentor, my answer is, no one knows, nothing. Liu Yiyi hurriedly stood up and replied.

Hey, squad leader, aren't you an idiot to answer like that? Li Zhuangzhuang said dissatisfied.

Liu Yiyi glanced sharply around the week, and then said very seriously: This is a difficult problem that science has no conclusion, how do you tell me to answer? Some in the scientific community say that the universe is expanding infinitely, some say that it is gradually shrinking, and some say that the universe is a mixture of black holes, white holes, and galaxies. In fact, I have also thought hard about the synthesis of many scientific theories, and I believe that the universe is a flow of energy. For example, the energy flow we can see is electrical energy, heat energy, mechanical energy, wind energy, atomic energy, etc., but there is also an invisible energy flow that is unknown energy, such as black, which also has energy, in fact, it is dark matter. There is also a dark matter that we can't see. It's not like black, it's visible. The soul, for example, is also a dark matter, a flow of energy. There is a big and small flow of energy. The big ones can see the atomic bomb explosion, the small ones can't see it, and it can only be perception. To use the color metaphor, the energy flow is red, and we can see the color of fire. It is green, and we can feel the flowers, trees, green mountains and green waters. It's white, and we can enjoy the white clouds, the sun, the air. And so on and so forth, and I won't list them. In short, energy flow is the way in which streamers exist both visible and invisible. This extends from the macro to the micro. In the microcosm, matter is composed of molecules, atoms, nuclei, electrons, protons, particles, quantum, and microparticles, but matter cannot be decomposed indefinitely, there is always an end. Until it is indivisible, that is the smallest way of existence of the streamer. The visible streamers constitute the specific form of matter and become macroscopic phenomena, and the invisible streamers constitute another form of matter, dark matter, that is, dark microcosm, also called unknown form. The universe is actually as simple as that. What expansion and contraction, it is all moving with energy flow. What can be seen is moving, and what is not seen is also moving. Because the energy is converted into each other, it determines whether the streamers can see or not. For example, my body can be said to be a macroscopic behemoth for an ant or a flea or lice, and for my soul, it is a way of being a dark matter streamer. If the body no longer exists, the soul will exist in another form, because the ron energy is transformed. A teacup is a substance, without life and vitality, and a body without a soul is actually a person who has died, and the body is like a teacup, because the flow that can bring to the body can no longer sustain the needs of the body. I'm sorry students, but what I said is a bit tongue-twisting, this is my own thinking, not a scientific theory. That's it.

——, classroom, I remembered the long-lasting bursts of warm applause.

Watson looked at Liu Yiyi in amazement at this time, as if Liu Yiyi was so unfamiliar and unfamiliar with a visitor from outside the world. The questions that were difficult for the scientific community to answer were solved in her mind. It is both vivid and relevant. In particular, the explanation of dark matter and the soul is really just right. Watson had to admire Liu Yiyi for having a superhuman image thinking and advanced scientific thinking. Is this view of hers a scientific theory? Watson was shocked and confused at this point.

Students, thank you Liu Yiyi for giving us the most wonderful explanation. That's all for now. Watson shook his head, because his thoughts and thoughts had not yet gotten rid of Liu Yiyi's way of thinking in the image, as if Liu Yiyi's voice was still haunting his ears like an angel's singing. After a while, Watson reluctantly calmed down and said: I have good news to tell you, there will be a two-day holiday from tomorrow.

Oh——!

The classroom was boiling in an instant. The students danced excitedly and cheered.

That's all for today's lesson! Watson said loudly: Class! Students can go home!

However, the classmates in the classroom left one by one, and in the end, Liu Yiyi was left sitting in her seat in a daze.

Watson was the last to leave the classroom because he had to close the windows and lock the doors. Watson saw that Liu Yiyi was not moving, so he was so strange, he stepped forward, knocked on the corner of Liu Yiyi's desk and asked: Why don't you leave?

How? Hate me? Chase me? Liu Yiyi replied angrily.

Hey, Liu Yiyi, what's wrong with you? Watson was even more strange, so he asked: The classmates are happy to hear that they are very excited to go home from vacation, what about you, listless and sick?

You're sick! I didn't! Liu Yiyi said boredly.

Hey, Liu Yiyi, what's the matter with you, ah? Watson raised his voice and said.

I don't have anything, I just don't want to go home! Liu Yiyi replied angrily.

Watson suddenly seemed to understand something, and asked, "Why?"

There's no why, just don't want to! Liu Yiyi replied as if she was annoyed.

For your safety, I see, I'd better send you home! Watson said very seriously and kindly.

Don't! Liu Yiyi suddenly jumped up from her seat, took her schoolbag and hurriedly ran out of the classroom.

Looking at Liu Yiyi's cheerful bird-like figure, Watson shook his head again and couldn't help but laugh slightly.

Liu Yiyi returned to the dormitory, and Xin Ruofei, who was in the same dormitory as her, had already packed her luggage. Xin Ruofei saw Liu Yiyi's silent and listless appearance, so she asked: Squad leader, what's wrong with you?

Hey, Xin Ruofei, can you accompany me on a trip? Liu Yiyi did not answer Xin Ruofei's question, but suddenly asked Xin Ruofei to accompany her on a trip.

This ——, squad leader, I, I don't have this preparation. Xin Ruofei replied hesitantly.

Hi, what are you talking about? Qian Yifan waved his hand and said hello: Take my car, I'll send you home!

Zhao Shiyan suddenly walked in and said: Goodbye!

Hey, Zhao Shiyan, do you want to take a walk? Liu Yiyi hurriedly grabbed Zhao Shiyan with words.

Where are you walking? Li Zhuangzhuang suddenly walked over and asked.

Li Zhuangzhuang, where did you come out like a ghost? Qian Yifan said dissatisfied.

In broad daylight, did you see a ghost? Li Zhuangzhuang said disdainfully: I'm too lazy to take care of you, I'm here to find Xin Ruofei.

Oh, Xin Ruofei, hurry up and confess, what conspiracy does Li Zhuangzhuang have to find you? Jiang Yaqing suddenly came over with a schoolbag on her back and asked.

Jiang Yaqing, what are you talking about! Xin Ruofei flatly denied it: He, he said it wrong, it's not me, looking for the squad leader!

Yes? I? Liu Yiyi was very surprised and said uncertainly: What do you mean?

At this time, Xin Ruofei's face was red, as bright as the peach blossoms in March, and she lowered her head slightly shyly.

Look, who blushes, is the concubine drunk? Zhao Shiyan stared at Xin Ruofei and asked: Xin Ruofei, what do you say/

Li Zhuangzhuang shook his head, feeling cramped and at a loss.

Hey, I wish Yingtai and Liang Shanbo an unprecedented date, how can you and I disturb such a thing? Jiang Yaqing teased: Who do I think will beat mandarin ducks?

Hey, the squad leader said, take a walk! Zhao Shiyan smiled and said: This time, how about we knock on the squad leader?

Where to? Count me in! Qian Yifan asked happily.

I'll go too! Zhao Shiyan immediately said: Even if I sign up!

No one wants to leave me behind! Jiang Yaqing smiled and said: I suggest going to Island C.