[Group Wearing Song Dynasty] The Glory of the Sky

It was already three o'clock in the morning when Liu Xi finished the impromptu meeting and pushed his wheelchair back to the kitchen.

Xin Qiji was sitting by the floor-to-ceiling window reading a book, saw the door of his bedroom was pushed open, got up and wanted to do something to help.

"It's okay, I'll do it myself." Liu Xi waved his hand and said, "I can actually walk a few steps on crutches, I'm just lazy."

His insouciance is somewhat unreal.

Xin Qiji is a martial arts practitioner. Although he has never broken a bone, he has fallen, sprained or even been stabbed.

When the pain strikes, there is absolutely no reason why it can be overcome by forbearance.

Liu Xi made himself a cup of hot cocoa, and ate a donut in the microwave. Turning his head and seeing the young man still looking at him, he raised his eyes and smiled, "What's wrong?"

"Don't you feel, pain?"

"Pain is supposed to exist, isn't it?" Liu Xi smiled and said, "Whether it's emotional pain or physical pain, it's all a reminder to yourself that this place is dangerous, your state is dangerous, and you should be better off." protect yourself."

What he said was so reasonable that people didn't know what to say.

"Can't sleep?" Liu Xi manipulated the handle to approach him, took a bag of dried broad beans from the low table next to him, and started to make the same crunching sound as Mo Mo chewing cat food.

"Just curious." Xin Qiji thought for a while before saying truthfully: "There are many questions I want to know the answer to."

"I can't sleep." Liu Xi let him hug him to a more comfortable sofa and recliner, and adjusted his position like a cat to make it more comfortable: "So come to talk?"

"Are you really—really not worried that I'm a spy?" Xin Qiji frowned and said, "I'm from Song Kingdom, right?"

"Song Guo, it's a label." Liu Xi clicked something out of thin air, as if he was looking at a wall of various label cards: "Your first and last name, your clothes, your education background, your origin are all just labels. .”

He always sees people in other ways.

such as behavior and motivation.

Those, are difficult to be concealed and camouflaged.

If he only pursued his identity, he still came from the Kingdom of Jin, and he could forcefully have a relationship with Mongolia.

Xin Qiji felt that although this man was only pretending to be older than himself, his manner of talking and doing things was not at this level at all, so he suddenly subconsciously asked, "Have you already experienced many things?"

You have the current ability, insight, conversation, these things that many people can't touch at the age of 25, is it because you have some unbearable past, or have you experienced too much pain?

"Of course not." Liu Xi shook the mug and looked up at him: "Compared to my friends, I can be said to have grown up carefree until now."

"If you want to go back, it's probably the ability to learn." He recalled thoughtfully: "Learning these two words has many levels. The deeper you go, the slower you learn, but the impact on people is also great. Bigger."

Xin Qiji got up and turned off the lights in the main hall, leaving only the orange night lights hanging above their heads.

The floor-to-ceiling windows reflected the faces of the two of them, and there were faint stars in the sky.

"May I ask about quantum teleportation?"

This question made Liu Xi a little surprised.

He thought that the problems Xin Qiji was thinking about were all related to Song State, Lin State, or political philosophy.

An ancient person who lived thousands of years ago—an ancient person who discovered the truth by accident, asked him about quantum teleportation, which is no less in nature than Mickey Mouse in cartoons suddenly started to discuss cynicism with a serious face rationality.

"You... heard about it from Zhao Qingyu?" He raised his body slightly, and his tone became more stable: "What do you want to know?"

"I have checked this term and related information on HowNet and the internal information network." Xin Qiji said slowly: "The results show that your grasp of it is still not stable and thorough."

In this way, it is true that in various senses, the entire town traveled to the era they lived in, which obviously did not seem to be done deliberately.

If you really want to travel, you should not return to such a place where materials are scarce and technology is backward, but you should go in a more future direction.

What's more, in the history of the country at that time, there is no Tang and Song Dynasties at all, and there is nothing in the history that I have learned.

Because of Xin Qiji's pure mind and the simplicity and directness of his actions, he traced all the way back to the starting point before the beginning of all the stories.

He wanted to see something bigger - but couldn't understand it.

After listening to his explanation of what happened before and after, Liu Xi realized that he might just be interested in this technology, and thought about it: "For me, all of this is just an accident."

"Zhao Qingyu told me that you already had relatively stable quantum teleportation technology in 2018, that is, 12 years before the time travel, but it was limited to inanimate objects and animal experiments, and human experiments were not allowed, right? ?”

Since he came into contact with Linguo, he has been exposed to massive amounts of information, constantly enriching his cognition: "The reason is that when life is transmitted, the soul—or consciousness, cannot be transferred. And people can't confirm whether those animals can complete certain experiments because they retain consciousness, or is it just the conditioned reflex in the brain that continues?"

Liu Zi was quiet for a while.

"You are quite serious about your research."

"If this topic offends you, we can stop at any time." Xin Qiji subconsciously started using honorifics again.

Under the warm yellow light, Liu Xi's face looked quiet and kind.

They seem to be just a pair of roommates, talking about unimportant things before going to bed.

"No, there is no way to verify those speculations." Liu Xi said slowly: "What do you want to ask?"

"Do they have a way to teleport inanimate objects back in time?"

Xin Qiji was actually not sure if this question was correct.

There was some confusion in his mind.

Although I have never studied quantum physics, and even failed to pass junior high school physics, many things do not make sense logically.

He has also read time-traveling and similar novels in the casual books that Liu Xi handed over.

If people in the future can travel back to the past, then people in the past should have seen it and left evidence.

"Wait a minute," Liu Zi sat up straighter, stared at him and said, "Do you think that time is a coherent existence, just like the arrangement of Spring and Autumn and Warring States, Han, Tang and Song Dynasties?"

"Isn't it?" Xin Qiji subconsciously said, "From childhood to old age, from the past to the present, isn't it?"

"You'an," Liu Xi's eyes looked quite beautiful under the light: "You tell me,"

"What time is it?"

This question sounded so simple that Xin Qiji subconsciously wanted to open his mouth to answer it the moment he finished listening.

But when he opened his mouth, all the things that should be in his mind were crowded together.

It's like, I asked Mr. Lu why candles can ignite fire.

It was the same with Mr. Lu at the time. He opened his mouth to explain this seemingly obvious thing, but in the end he could only say, because candles can be lit to make a fire.

Time... is time.

Isn't time just—

Xin Qiji's expression became a little dazed, and he even felt that he was trying to grasp one or two adjectives in his mind, but his brain, which can write articles and poems on weekdays, seemed useless at this time.

Time... what is it?

"Let me tell you the current answer." Liu Xi said slowly: "In Baidu Encyclopedia, or other official definitions, time is one of the seven physical quantities in physics."

Length, mass, thermodynamic temperature, current unit, light intensity, mass of matter (MOL).

There is only one thing left, and that is time.

Xin Qiji never thought that these things would be placed on the same plane, and he even felt absurd in his heart.

Length, temperature, and time?

"Don't worry, let's do some simple science." Liu Xi raised his hand and picked up the chronograph by the table, which he usually used when he cooked hot spring eggs for himself——

Put the eggs in a pot of cold water, boil them for 5 minutes after the water boils, and then put them in cold water for 5 minutes, then they are perfect Liuxin hot spring eggs.

"You have been in Linguo for two years, and you have long been used to our accurate timekeeping, but have you ever thought about what our timekeeping is based on?"

I should know this question.Xin Qiji instinctively caught the watch in his hand, trying to connect his past cognition with the present question: "The rise and fall of the sun?"

Isn't their sundial judging the time by observing the shadow cast by the sun?

The other party showed a dumbfounded smile, obviously this was a wrong answer.

Xin Qiji subconsciously denied his own answer, confessing that he knew nothing like admitting defeat.

"It's not your fault, I'm not smart enough to understand these things myself."

Liu Xi lowered his head and opened the tablet, showing him relevant information.

At the International Conference on Metrology in 1967, they defined the second as the duration of 133 cycles of radiation corresponding to the transition between the two hyperfine energy levels of the atomic ground state of cesium-9.

"No, no, no——" Xin Qiji looked at the related pictures and words in a daze: "Mr. Liu, how could this have anything to do with time?"

How could something like atomic radiation have anything to do with the passage of time?

He only felt a faint resistance in his heart, as if people walking on the edge of the dark forest instinctively dare not go any further.

"The answer is simple."

Liu Xi leaned forward slightly, and his voice was especially clear in the silence.

"Time expresses the birth and death arrangement of matter."

"The essence of time is the movement of matter and the transfer of energy."