Chapter 136: Subjective Color
After temporarily getting rid of Nippel's Yeti troops, Tianxuan and his party came to a very wide glacial plain.
This place, full of crystal clear ice world, like a crystal palace, without a single trace of snow. All kinds of strange ice cubes are shaped like statues, and from a distance, there is a large ice tree that connects the heavens and the earth in the distance, and the cold light emitted around it is provided by it.
After walking on the wide plain for a while, Tianxuan suddenly stopped and said, "Do you think that although there is ice everywhere here, there seems to be no wind at all, and it is not very cold. ”
"That's right!" As soon as Tianxuan reminded him, everyone also felt that the temperature around them seemed to be quite warm. After Blake looked around, he sighed and said, "It seems that I have never been here before, and I have never heard of it, Tianxuan, can you find out what kind of place this is on the navigator?" ”
"Hmmm! I'll take a look! After a few minutes, Tian Xuan said with an embarrassed face: "It seems that we slipped too fast just now and deviated from the direction!" ”
"Where is that now?" As he spoke, Blake grabbed the navigator with one hand and looked closely.
Following the direction pointed by Tianxuan, after Blake looked at it, he took two steps back, his eyes widened, and he stood aside.
Hercules, who was on the side, saw Blake's big reaction, and hurriedly stepped forward and asked, "What did you see?" Black! ”
Blake closed his eyes and took a deep breath before saying, "We're in the Extreme Freeze right now. ”
"Is what you say true or false?" Hercules shook his head a little unconvinced.
"Frozen regions, nothing wrong!" Blake repeated.
"How is that possible? I think we should have followed a straight line! Hercules was still a little skeptical.
"Possibly!" Tianxuan interrupted Hercules and said loudly.
"Huh? What do you mean by that? Hercules asked, tilting his head.
Actually, it's the same as walking blindfolded. When your vision is obscured, follow your senses and walk in a straight line, and eventually you will find that you will walk in a big circle. Tianxuan explained.
"Why is that?"
"Before I came, Eliagoth told me that it was possible to get lost in the snow. To put it simply, the essence of biological motion is circular motion. If there is no goal, the instinctive movement of any creature is in a circle, and there must be something going on around us when we slide down. Tianxuan continued to explain.
"What you mean is that what we see with our eyes may not be real." Hercules asked, blinking.
"Hmmm! It's the case, it's very likely that there is a strong magnetic field in the vicinity, and the frequency emitted is not the same as what our human body usually receives, so this is the reason for this. Tianxuan rubbed his lips with his fingers and said.
"That's the case, so why don't we go back the way we came now? After all, the Frozen Region is an unknown region that has not been set foot for thousands of years, and it is hard to imagine that something similar to the Flame Storm Zone will not happen if you venture forward. ”
"Huh! Let me think about it, give me a moment! As he spoke, Tianxuan lowered his head, his fingers supported his chin and began to pace back and forth.
As he walked, Tianxuan suddenly noticed that something was moving under his feet. So, he jerked his foot away, stared at his feet, and after a few seconds, he stroked his chest and smiled slightly: "Scared me to death, it turned out to be a fish." ”
"Fish?" Everyone hurriedly looked at their feet, and sure enough, they found a lot of white or black fish swimming under their feet, and it turned out that the wide glacial plain where they were located was actually the ice layer on a wide glacier.
"This is an extremely frozen area, and everything should be withered! But why are there fish? Blake asked himself, frowning.
"Is this ice thick?" In order to solve Blake's question, Tianxuan said as he crouched down and tapped his fingers on the ice.
There was a dull "Knock knock!" After the sound, Tianxuan nodded and said to himself: "It is indeed very thick, this ice layer is estimated to be more than two meters, and there is absolutely no problem with normal walking!"
Then Blake also crouched down and knocked, and sure enough, the thick ice made a dull sound, and then he was relieved.
After the doubts were resolved, the big stone in everyone's hearts that had been hung up by Black before was finally put down. However, this does not mean that there is no danger, and there is actually turmoil hidden under the calm!
"Hey! Don't look at the ice! There seem to be a lot of glittering crystals in the distance! Tianxuan pointed to the distance and said.
"Huh? That's ......" After a few seconds, Hercules and Blake looked at each other for a moment, and almost simultaneously shouted, "Ice Crystal!" ”
"That's the Ice Crystal! If you look as crystal clear as an ice cube, but with a slight shimmering lilac halo, that's the Ice Crystal! Blake explained, pointing in the direction of an ice crystal.
"Oh!" Tianxuan nodded and said, "I understand, it turns out that it looks like this." ”
"Hmmm! But it's the first time I've seen such a large pile of pieces! Blake said, staring at the ice crystal in the distance.
"What are you waiting for? Let's take a look! Hercules still had the usual style of saying and walking, and strode forward before he finished speaking.
"That's right! Let's go check it out! After all, this is an extremely frozen area, and it is reasonable for so many ice crystals to appear, and this mining piece is enough for us to work for a few days. Blake followed. Then everyone followed.
In the process of approaching the ice crystal, Tianxuan accidentally noticed that there were more big-headed fish under the ice, so he slowed down and observed through the cold light.
After a while, I saw that these big-headed fish gathered more and more, and they were mixed together in black and white pairs. Then they started to spin clockwise desperately.
"Hey! Look at the fish spinning under your feet! Tianxuan was surprised for a moment, waved his hand and shouted.
Everyone was stopped by Tianxuan's shout, and they all stopped and looked at their feet. At this time, the bighead fish under the ice under the bottom of the feet were really mixed together and desperately rotated clockwise, and soon the black and white bighead fish mixed together became seven colors.
"Not good! They're discolored! Be careful, everyone! Blake hurriedly reminded everyone.
"Nope! No! No! Tianxuan waved his hand with a smile at this time, and explained to everyone, "This is a normal phenomenon. ”
"Huh? Normal! ”
"Yes!" Tianxuan paused and explained, "This is the same spinning top I played with when I was a child. ”
Speaking of this, he used his hand to draw the shape of the spinning top, and then continued to explain: "Paint the surface of a disc in black and white, as long as the black and white are staggered, and when the plate rotates, you will see colored stripes. Under different lighting conditions and different speeds, the colors you see will be different, and everyone may not see the same colors. ”
"You're saying we're all hallucinating?"
"Hmm!" Tianxuan hesitated, nodded reluctantly, and said in a long voice, "It can be said to be an illusion!" Technically, it's called subjective color. The reason for the formation of this subjective color is related to the physiological mechanism of vision, which is that the retina reacts differently to different colors. ”
"It's a bit like the optical lenses designed by Gusas that make people disappear from sight." Hercules continued.
"Hmmm! It's the same thing. Tianxuan affirmed, "Different black and white patterns produce colors under different lighting conditions and different speeds, and he observed that the forward end of the white area is red, and the rear end is blue; When the light is intensified, the red is a little rosy and the blue is a little green; When the light is diminished, the red turns orange and the blue turns purple; As the rotational speed increases, the color gradually transitions from rose-purple to green-gray. ”
"Hey! Why are you so complicated! Let's talk about it briefly! Besides, we don't have that much to spare! Hercules said impatiently.
"Hey! All right! Tianxuan lowered his head and sighed, and said, "It's rare to make me proud!" I'll cut a long story short: people can see colors because there are three types of photoreceptors on the retina that respond to red, blue, and green, and there are subtle differences in the response times of the three cells. White light is a mixture of light, and the three types of cells react to different components of white light, generating nerve signals that come to the brain and synthesize to form a white sensation. When the eye looks at static white things, the response time of the cells is not reflected, but when looking at the rotating black and white pattern, because the black and white areas are rapidly alternating, the nerve signals generated by the photoreceptor cells only last for a short time, and the subtle difference in response time is reflected, and the red, blue, and green signals received by the brain come first and then later, so when they are stacked together, they are not white, but red and then blue colors. ”
After an impassioned explanation, Tianxuan saw that the people around him didn't react, so he raised his tone and asked, "Do you all understand now?" ”
Hercules just lowered his head at this time, and said lightly: "I understand, I'm not deaf, don't you see that I'm admiring the color of this supervisor?"
"Damn! You count one! Tianxuan shook his finger at Hercules a few times, and after a blank look, he walked to the side.
"Why are you angry?" Blake walked over and smiled as he prepared to play the round.
"Not angry!" Tianxuan replied weakly.
"Then I think you seem to be a little upset!" Blake poked his head out.
"Hey!" Tianxuan patted his thigh, shook his head and responded, "It's just a little unhappy!" I've long been accustomed to his virtue, and it's not a day or two! ”
"Hehehe!" Blake was amused by Tianxuan's words.
After Blake laughed, Tianxuan also laughed heartily, and the atmosphere seemed to be very harmonious.
A few minutes later, the group continued on their way.
However, just as everyone was attracted by the beautiful sight in front of them and relaxed their vigilance, a vision occurred.
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