232 Assumptions of space-time

It doesn't matter if what the traveler sees is real or a hallucination of his own making, or if it's a fiction made up by this guy in the first place. Pen "Fun" Pavilion www.biquge.info But we have a certain place in this world, and the speed of time is different from the space we exist, this is certain.

Hume once stepped into the door of philosophy with a skeptical attitude, and Stephen Hawking, the greatest living scientist of space-time, is still alive, and they both put forward the hypothesis that the world is nothing more than a normal space in three dimensions. Since there is one and two dimensions, and it is pushed to three dimensions, it means that it is possible to have a four-dimensional space.

In the fight against hunger, because our human perception can only reach the limit of three-dimensional, we have not been able to discover what a complete four-dimensional space looks like until now. This is actually quite understandable, as we all know that a train can be seen as a single one-dimensional motion, that is, it only travels in a straight line. And if the moment this train derails, it enters two dimensions.

In the same way, for ants, the world is two-dimensional space. Because in the world of ants, there are only front, back, left, and right, just an independent plane, and nothing beyond the plane. Therefore, no matter what the ant puts on it, the world it sees will always be just a plane, and there will be no three-dimensional feeling.

From this derivation, our human cognition is only three-dimensional. In fact, there is a four-dimensional space, but we can't perceive it. And thinking, in the eyes of many scientists, is linked to time. Thinking of this, I immediately felt that this space was very weird, because the same stone walls on both sides seemed to be an endless one-dimensional world, and with the continuous shining fire, the refracted shadows corresponded to the two-dimensional, and then there were the top and ground in the high places, resulting in three dimensions.

A hypothesis appeared in my mind, could this place be used to distort time and tell people that this place is a four-dimensional?

The fat man probably saw that I was in a stupor, and immediately stretched out his hand and shook it in front of my eyes, and then asked, "Xiao Ye...... Xiao Ye? Don't get distracted. In this kind of place, I fall into this kind of dull gaze from time to time, and it is easy to think of whether it is stuck by something dirty. You haven't told me how to verify if the time flow rate in this space is faster! ”

I looked back at the way I looked, and said, "Let's not verify if it's a matter of time." Let's first verify whether it is a problem of space. Maybe there is something like a ghost hitting a wall in this place, and we may not be able to get out if we keep walking. And the accelerated passage of time has made us even more trapped in this tangled predicament. So, let's verify the space first. This thing is very easy to verify, just assume that the two of us are walking in the forest and get lost, and mark all the places we have walked, and when the marks appear again on the road in front of us, it means that we are walking back, and we have not found it ourselves. ”

I said so many words in one breath, and the fat man was stunned when he heard it. I just wanted to explain, but I didn't expect this guy to understand. "Okay, let's do it, but what about this mark? Do we tear off our clothes to use them as cloth labels? ”

The fat man's words made me roll my eyes all of a sudden, this guy's brain has never been enough, but fortunately, it is fortunate that it is so, otherwise how can he follow my Xiao Ye with all his heart. Thinking of this, I smiled helplessly, and then said, "Don't be stupid, let's go straight forward, and then extinguish the lights on this wall for a short time." If the same scene still appears in front of you, it means that this place is indeed endless, and not that we are walking a circular way back. And if as we walk, there are extinguished torches in front of us, it will be easy to do, indicating that we have been in a circle in a labyrinth. ”

When the fat man heard this, he didn't understand it again. He paused for a moment, then asked me very thoughtlessly, "Impossible, let's keep going around in circles in this place?" But we didn't turn around, and we didn't have any arcs. We've been walking against this straight wall, how can there be a possibility of going around in circles? ”

For the fat man's brainless problem, I still patiently explained. "You know the Earth is spherical, right?"

The fat man nodded thoughtfully, but when he looked at me again, he was still at a loss.

"The earth is spherical, and you live on the surface of the earth, but when you see the sun rising in the east and setting in the west every day, do you see that the horizon is a curve?" My words suddenly made the fat man suddenly realize.

"Oh. Fat man, I finally understand, you mean that the place we are walking in is so big that our eyes can't find the arc that is gradually changing. So I kept walking against the wall, but I actually started to turn before I knew it, isn't that what it means? The fat man asked with a smug face. According to his thinking, it is not easy to understand this layer.

But I explained it to him again. "That's the truth, but it's not just big. If this place is really so big that we can't observe the change of the arc curve with our naked eyes, then it will be at least tens of kilometers or more, just imagine, such a huge underground space project, than modern people build a subway under the metropolis. It was naturally impossible to build in ancient times, so there were other doorways in it. For example, this strange light may be alternating between bright and off, which is easy to give us the illusion of eyes, that is, the wall we see is straight, but in fact there is already an arc, but it seems that we don't find it. ”

When I explained this, I immediately remembered that when I was in junior high school, I had a science and technology exhibition. There were a lot of things that were sent at that time, and one of them was about endless space. It was a passage, almost half a man high, and two fiery red candles were lit on each side, and the candlelight swayed at will, and at first glance, the black passage seemed to be endless.

Later, I read the principle introduction, in fact, it is very simple to stay away, and I can make a simple one myself. That is, the two mirrors are placed more than half a meter away from each other, and there must be a lit candle between the two mirrors, so that when the candle flame reaches the mirror closest to itself, it will be reflected. (To be continued.) )