Sure enough, as I guessed, Xueyi's home was also in a dilapidated state. The gate fell to the ground, showing no signs of human life. The furnishings in the house were as good as yesterday, but they were covered with dust, and her grandmother was long gone.

"What's going on?" Su Qin was frightened, and she felt cold all over her body.

"Sure enough, we are no longer in the original time and space." I muttered, "Now we should be in one of the dimensions of the multidimensional universe. ”

"Multi-dimensional universe, what kind of damn multi-dimensional universe, silent at night, what do you want to say, don't hide it, tell me it clearly and quickly." Su Qin glared at me and bit her lip vigorously. She's going crazy with this series of weird events.

I tried to calm my mind and slowly explained, "When you were in high school, you should have learned that the universe is multidimensional, and we are located in a three-dimensional universe. The three-dimensional universe refers to the three dimensions of length, width and height of the concept of space, and the size of any object can be determined by the three parameters of length, width and height. The size, distance, and shape of both the microcosm and the macrocosm can be depicted through three-dimensional parameters. ”

But in the 20th century, Albert Einstein proposed a four-dimensional universe, which includes three-dimensional space and one-dimensional time. It is more accurate to use the concept of four dimensions to describe things in the universe. Adding one-dimensional time is a more accurate description of things than the universe with only three-dimensional parameters. By this inference, adding more dimensions will give a more detailed description of the universe. This is the basis of the multidimensional universe. ”

"But what does it have to do with where we are now?" Su Yan was obviously more serious than Su Qin in reading, but she understood.

I licked my cold lips: "Three-dimensional, four-dimensional, these can only describe the visible. It is impossible to describe what is not visible. For example, the field information of an object cannot be described, and an object of the same size that can emit field waves and radio waves also has different characteristics, such as the characteristics of a television station tower when it is working and when it is not working. Because there is no difference in appearance. When the TV tower is working, there is radio wave radiation, and the corresponding areas across the country can receive its image and sound information, and the TV tower cannot receive any image when it is not working, so it can be regarded as another dimension and an additional dimension. ”

"To understand where we are now, the focus is on additional dimensions. I think that additional dimensions are all dimensions based on three-dimensional space. Additional dimensions are essentially invisible. If the visible three-dimensional space is understood as a masculine thing, which is the world of particles, then the additional dimension is a feminine invisible thing, which is the world of the wave field. Things with radio waves can be understood as a five-dimensional universe, but in addition, there are differences between the frequencies and characteristics of radio waves, which can be described as a six-dimensional universe. ”

"Where there are radio waves, there is an electric field, and the field is also divided into electric field and magnetic field, and in the past, there were people who tried to find a unified field, etc., but failed. In order to distinguish between dimensions, it is necessary to increase the dimensionality. For example, temperature can also be considered as a new dimension. In addition, the spirit world that people are exploring has more bizarre properties such as wave field frequencies that can only be explained and explained by more dimensions. In other words, the complete macrocosm and microcosmetic, including the human minicosm, can only be accurately described by multidimensional space-time parameters.

It includes the visible and invisible cosmic worlds, such as stars and black holes in celestial phenomena, and the physical and spiritual worlds in human phenomena. Some people put forward the concept of parallel universes, which can also be understood as the coexistence of three-dimensional visible universes and multi-dimensional invisible universes, which can be considered reasonable. Only by using a multi-dimensional view of the universe can we explain everything in the universe, including the characteristics and phenomena of various stars. It also includes all kinds of strange things that are still in the puzzle at the moment, such as the mystery of Bermuda, the mystery of the flying saucer, the mystery of the soul, etc. Therefore, some people say that whether the universe is four-dimensional or multi-dimensional seems to depend on the level of depth of the things we are describing, as well as the depth of understanding of the universe and the level of detail in which we describe the universe. ”

I came to the conclusion that "in general, the multidimensional universe is considered to be another world that coexists in our world and in the universe of minds. But it's not a parallel world. My guess is that we should be pulled away from the normal world, and here, in time and space, is in the same position as the normal world where we have always been, but in a different dimension. ”

Su Qin didn't understand, Su Yan understood, and said in shock: "I remember Qinqin said that you appeared here inexplicably after the tragedy occurred in the courtyard of the Su family, and after the people died." Could it be that we are still in the courtyard, but the dimensions are different, so we see different things. And the people of the normal world in the courtyard can't see us? ”

"Yes, that's what I meant." I nodded.

"But why are we here?" Su Qin also understood, and asked hesitantly.

I frowned: "I always feel that before we fell into a coma, we had amnesia for a while. If we want to understand the ins and outs of our invasion into the multidimensional world, we must find out what we have forgotten! ”

Looking at Xueyi, who was shaking and crying beside me, I suddenly asked, "Xueyi, can you find the place where the god lives in the mouth of Yangjia Village?" ”

Xueyi hesitated for a moment and nodded slowly: "You want to go?" ”

"Yes, I'd like to check it out." I said seriously, "That might be the only clue we've found to get out of this damn place." Can you help us? ”

"But didn't you say that I was in a different world from you? You're gone, I, am I going to be alone in this village? Don't, I'm afraid, I'm so afraid. "The strong girl was terrified by the dead village, and she had no courage to live at the thought of living here alone for the rest of her life.

"Fool, you can come with us." I touched her head, and I felt pity for this girl whose temperament was somewhat similar to that of the guardian Li Mengyue. The guardian girl has no friends, so she may be able to be good friends with her. Because the two of them are really similar except for their different appearances, one of them has no language barrier and is not so cold.

"Me, really. Mr. Night Silence, you clearly said ......" The girl looked up at me, with tears in her eyes, and it was distressing to see.

"Stupid, since we can all enter your world, then you must have a way to get out of here and go to our dimension." I cut her off categorically.

"Pull the hook!" Xueyi hesitated and stretched out her little hand.

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