Compared to my sluggish performance, Jack and the Europeans seemed to understand what was going on faster and began to act on it.

I saw Jack carrying the European on his back from my left to the back of the black hole. At this point, I was sure that the black hole was substantial, and I saw Jack and the Europeans disappear to the back side of the black hole, and in a moment, two people came out of the other side of the black hole.

Jack's footsteps did not stop, and he carried the Europeans around the black hole almost in a circle, all the way to me.

"It's a spherical or cylindrical shape. Spherical is more likely, I'll check further. Jack said, putting the Europeans next to me.

The European's crutches made me a stretcher, and he couldn't stand on one foot, but he was unwilling to sit down, and he was more interested in the black hole in front of him. Of course, his interest was only professional.

I don't know if he realized the great danger we were facing, but judging by his expression, he was excited and kept saying something. I don't understand, it's not English, it seems to be German. I can still understand some of English.

The Europeans decisively put a hand on my shoulder and used me as a crutch.

Jack put down the Europeans and immediately ran towards the black hole. He bent on his waist, and suddenly turned around and lay on the ground at the moment when he was close to the black hole, and his two feet kicked the ground and his body quickly entered the bottom of the black hole.

My heart suddenly tugged at that, this is risking my life. Even though I don't know what this black hole is, it feels dangerous to me.

It's too much like the physics description of a black hole: not even light can escape from it.

I stared at Jack, and the smooth ground made his movement coherent, and his whole body went under the black hole like a fish. The phenomenon of being sucked into the interior of the black hole that I feared didn't happen, and Jack kept crawling over his back under it and back around the other side.

"It's a spherical shape." Jack said this again in English to the Europeans.

The light of the flares dimmed quickly, as the space fell into darkness. The black hole merges with the surrounding darkness.

The Europeans chattered excitedly at Jack, sometimes waving a hand and shouting hoarsely, as if they were giving a speech.

But Europeans always spoke to Jack in German, and I said angrily to Jack, "Why don't you speak English?" You know I don't understand, do you? ”

Jack shook his head at me and said, "His mother tongue is German, which is clearer for him." As soon as he gets excited, he gets used to speaking his native language. Don't get me wrong. ”

"Okay, please clear up my misunderstanding." I pointed in the direction of the black hole and said, "What's that?" ”

"He wasn't sure, giving two guesses, a passage or another space. You should be able to feel that it's not something from our world, it's from another dimension... or a more advanced space. ”

"More advanced?" I was completely at a loss. "Can you explain? Is there a hierarchy of space? ”

The last rays of flare were also engulfed in darkness. None of our flashlights were turned on, only the cool glow of glow sticks shining on our faces. I saw Jack frowning, as if organizing wording or... Make up lies.

"Four-dimensional spheres. He said it was a four-dimensional sphere. This possibility exists, it is in our world, but it does not fit into our world. It's not how prominent it is, how different it is, it's that it's out of place in this world. ”

I glanced at the Europeans who were still chattering and asked Jack, "What is he talking about?" I listened to him repeating something over and over again. ”

Jack's face froze. "He wants to bring the four-dimensional orb back."

I glanced at the European with excitement and almost madness, and gave him a middle finger in my heart. It's your fate to be able to take yourself out, and take the black hole out? You're thinking too much!

But I wasn't even in the mood to hit him. Immediately turned to Jack and said, "Four-dimensional ball? You're bullying me as a liberal arts student, aren't you? Although I have not studied space physics in depth, I still understand the most basic knowledge. I ask you. How could four-dimensional spheres appear in our world? ”

Jack spread his hands. "Why not?"

I almost made this Yanke stun. Doesn't he open his eyes and tell nonsense? I decided to expose his lies, or he would have fooled me with them.

"One dimension is a straight line. A two-dimensional is a plane with no thickness. Adding a vertical dimension to a two-dimensional plane is our three-dimensional space. Am I accurate in this statement? I asked Jack with a gesture.

Jack nodded. "That's pretty much it."

"Okay, if you agree with what I say." I raised my right hand holding the cyclops flashlight, and my left hand ran under the cyclops. "Let's assume there's a two-dimensional plane here, and my cyclops flashlight is a three-dimensional object. That's no doubt, right? It doesn't matter if it's a three-dimensional sphere or a three-dimensional cylinder, but it's a three-dimensional object. ”

The moment I saw Jack's nod, I let go of my right hand, and the cyclops flashlight fell to the ground with a thud.

"A three-dimensional object can pass through a two-dimensional plane, but how can it be in two dimensions? No doubt. That's impossible! It is also impossible for the smallest three-dimensional fragments to enter the two-dimensional plane, which is determined by their physical properties. In the same way, it is impossible for the smallest four-dimensional fragment to enter three-dimensional space! ”

With that, I stared at Jack. I saw him frown again. Looks like thinking or making up nonsense.

I don't think he doesn't have an answer to this, he knows more about dimensional space than I do, at least not as dazed as I am. He, especially the Europeans, should have an explanation for the black hole we are facing. But it won't be a four-dimensional sphere. This doesn't make sense!

"Let's talk about another possibility. Another possibility you are talking about, the channel. Where does it lead? "I really don't want to listen to Jack's lies, Four-Dimensional Sphere? That's! On the contrary, the channel is more reliable. After all, he had a similar guess.

"Three-dimensional eyes can't see four-dimensional!" I used this closing sentence to express my displeasure with his lies.

Sensing my dissatisfaction, Jack looked at me deeply for a moment, then raised a hand and pointed in the direction of the black hole and said, "Yes, it is impossible for a three-dimensional eye to see four-dimensional." So, what do you see? ”

"Black..."

I spat out a word and couldn't speak again. yes, I saw something. Is black a substance? Apparently not.

Black, just the result of light not being reflected back, is not a symbol of the real thing. There is not even air, there is no floating dust, there is nothing in which light cannot be refracted or reflected.

"Moreover, I suggest that you don't think about dimensional space with inertial thinking." Jack nodded at me and continued. "In one-dimensional, two-dimensional, three-dimensional space, the increase in dimension is linear. Is the increase in the dimension of four-dimensional space necessarily linear? Can it be noodles or something else? There is a general view in the space physics community that the more fantastical the idea, the closer it is to the truth, and the more likely it is to guess the true appearance of the four-dimensional space. ”

I was stunned for a moment, and suddenly turned my head to look at Cao Mingzhe. (To be continued.) )