Chapter 1523: Mirage

The first thousand five hundred and fifty-eight chapters mirage
After hearing what his son said, Zhao Zhongyao thought for a while and said, ‘it should be like this, this is not a mirage, but a real huge wave. ’
‘Then how did this huge wave come about? Feifei looked at his father again and asked.
‘How did it happen, I still don’t know. However, we may know soon. When Zhao Zhongyao was speaking, he saw this huge wave, as if it was beginning to flood them.
Feifei also saw this huge wave coming towards them. So I looked at my dad with a little fear and said, ‘dad, what should we do now! ’
Zhao Zhongyao smiled and said, ‘haha, let’s just watch the changes. ’
Feifei said with some worry, ‘but this huge wave will engulf our spacecraft. ’
‘Don’t worry, it doesn’t matter if our spacecraft is swallowed by huge waves! Our spacecraft will not have any problems. Zhao Zhongyao is very confident in his spacecraft.
Now this huge wave is getting closer and closer to their spacecraft, and both Zhao Zhongyao and Feifei can clearly see the huge wave in front of them. Feifei became more and more afraid. But seeing the confident look of his father, he felt a little relieved.
At this time, a more magical scene happened. Suddenly there were many tall buildings on the huge water wall. The scene surprised Zhao Zhongyao himself. After all, he himself couldn't think of how he would see such a wonder at this time.
Not to mention Feifei, he stared at the tall buildings above this huge wave in surprise, thinking in his heart what was going on. How could such a spectacle appear.
‘Dad, what’s going on, is this a mirage? Seeing this scene, Feifei thought of the mirage again.
After hearing what Feifei said, Zhao Zhongyao thought for a while and said, ‘It seems that this is the only way to explain it now. However, how much do you know about the mirage. ’
After hearing what his father said, Feifei said again, ‘I only know that a mirage is a magical natural phenomenon that can be seen in the sea. It seems to be related to the weather at that time. ’
After hearing Feifei’s words, Zhao Zhongyao said, ‘Actually, mirages do not always occur at sea. Sometimes mirages can be seen in the desert. ’
'Oh, really! What is going on with that mirage? Suddenly, Feifei became a little curious about this mirage.
‘Okay, let me tell you what is going on with Mirage! After speaking, Zhao Zhongyao began to talk.
‘A mirage, also known as a mirage, is a natural phenomenon formed by the refraction and total reflection of light. It is a virtual image formed by the atmospheric refraction of light reflected by objects on the earth. Its essence is an optical phenomenon.
The appearance of mirages is closely related to geographical location, geophysical conditions, and meteorological characteristics of those places at a specific time. Its characteristic is that the same place repeatedly appears at the same time.
In places such as calm seas, large rivers, lakes, snowfields, deserts, or Gobi, occasionally illusions such as tall buildings, city walls, and trees appear in the air or "underground", which are called mirages. This kind of illusion often appears on the sea in Penglai, Shandong, my country. The ancients attributed it to the mirage of the genus of dragons.
A mirage is an optical phenomenon. The hot air rises on the sandy or stone surface, causing the light to refract, thus creating a mirage. Mirages can occur in desert areas approximately 6 miles (9.6 kilometers) from the coastline, making objects 1 mile (1.6 kilometers) away or more appear to be moving. It makes land navigation very difficult, because natural features are blurred in the mirage environment.
The mirage makes it difficult for a person to distinguish distant objects, and it also blurs the outline of the distant vision. You feel as if you are surrounded by a piece of water, and the higher part of that area looks like water. "Island". Mirage also makes it very difficult for you to identify targets, estimate range, and find people.
However, if you go to a higher place 10 feet (about 3 meters) (3 and 13 meters) above the desert floor, you can avoid the hot air close to the ground and overcome the mirage illusion. In short, as long as you slightly adjust the height of the wait-and-see, the mirage phenomenon will disappear, or its appearance and height will change.
Mirages are often produced in the sea and in the desert. Mirages are the result of refraction of light rays in air layers with different densities along a straight line. There are many types of mirages: according to the position where it appears relative to the original, it can be divided into upper mirage, lower mirage, and lateral mirage; according to its symmetrical relationship with the original, it can be divided into positive mirage, lateral mirage, forward mirage and Anti-mirage; according to the color can be divided into color mirage and achromatic mirage, etc.
Since ancient times, mirages have been concerned by the world. In Western mythology, mirages are portrayed as the incarnation of the devil, an omen of death and misfortune. In ancient my country, the mirage was regarded as a fairyland. The Emperor Qin Shihuang and Emperor Wu of the Han Dynasty once led people to Penglai to search for the fairyland, and sent people to Penglai to find a miracle.
Modern science has correctly explained most mirages. It is believed that mirages are virtual images formed by atmospheric refraction of light reflected by objects on the earth. The so-called mirages are optical illusions. A mirage is an illusion formed by refraction of distant objects. The reason for its occurrence is a temperature gradient formed by the sun increasing the ground temperature.
Due to the different density, light will refract at the boundary of the temperature gradient. Our brain thinks that light always travels in a straight line, but when the light passes through the low-temperature and dense atmosphere below, it will be refracted downwards, so the distant objects appearing in the brain will be higher than they actually are. Mirage often occurs on the sea, because the air humidity in a certain area of ​​the sea is relatively large, and the thickness is relatively large. Such a large area of ​​water vapor forms a huge lens system by mistake.
When the temperature near the ground changes drastically, it will cause a huge difference in atmospheric density, and the distant scenery will undergo abnormal refraction and total reflection when the light travels, resulting in a mirage. In addition, the occurrence of mirages is also related to the refractive index of air layers at different altitudes. Water vapor content is an important meteorological element that directly affects the refractive index. At the same time, there is also a certain relationship with sudden changes in temperature and relative humidity.
The air close to the sea has a relatively high refractive index due to the low temperature of sea water and moist water vapor, while the temperature of the air above is relatively high due to the influence of sunlight. The refractive index of the air layer above the sea gradually decreases from bottom to top with height. Due to the discontinuity of changes in meteorological elements, the refractive index of light in the air is also discontinuous. The light passes through the air layer with high refractive index. At the top, under sunny, windless or breezy weather conditions, total reflection is easy to form, resulting in the wonder of a mirage. ’
Zhao Zhongyao told Feifei about what he knew about the Mirage.
After Feifei heard what Dad said about this mirage, he had a general understanding of this matter.
But Feifei had another question at this time. Because all the mirages Zhao Zhongyao said happened in the air. For example, on the seashore, you can see that above the sea level, some tall buildings will suddenly appear. There is also a mirage in the endless desert.
But now the mirage they saw was not in the air, but on a huge wall of water, which was very strange.
So Feifei looked at Zhao Zhongyao again and asked, "Dad, but the tall buildings we see now don’t appear in the air, but appear on this huge wall of water. what's going on. ’
Hearing what Feifei said, Zhao Zhongyao really felt a little different. After all, the mirage they are seeing now is really not like the phenomenon they knew about the mirage before. Because all the things they knew about the mirage happened in the air. Whether it's on the sea, in the desert, or on the snow, it all happens in the air.
But the mirage they saw before them happened on a wall of water, which was very strange. Obviously, this phenomenon is not a pure mirage.
It's just that Zhao Zhongyao thought about it for a moment, and he understood what was going on. At this moment, he looked at Feifei and said, ‘this phenomenon we are seeing now should be a very special mirage phenomenon. ’
After hearing what Zhao Zhongyao said, Feifei asked curiously, ‘what we see now is a special kind of mirage, so what are the characteristics? ’
‘This is a kind of water curtain mirage. Said Zhao Zhongyao.
‘What, a mirage of the water curtain! Feifei looked puzzled after hearing what his father said.
"You know the water curtain movie? Zhao Zhongyao looked at his son and asked.
Feifei listened to it and smiled and said, ‘haha, I’ve seen this kind of water screen movie, but I don’t know how this kind of screen works. ’
‘Then I’ll tell you something about the water curtain movie! "Zhao Zhongyao saw that Feifei didn't know much about water curtain movies, so he wanted to tell his son more about this.
‘Water curtain film technology is a multimedia technology that illuminates the water surface with a beam of light, showing a strong three-dimensional film effect. Water curtain movies were produced in the late 1980s, but their early appearances only appeared in large cities in some countries such as France and Japan.
Due to the unparalleled optical effect of the water screen movie, when the movie is played, the colors are fresh and vivid and the subtitles are clear. The water curtain film uses a high-pressure water pump and a special water curtain generator to spray water from bottom to top at high speed and form a fan shape after atomization. A special video tape is projected on the "silver screen" by a special projector to form a water screen movie.
When the audience is watching the movie, the fan-shaped water curtain merges with the natural night sky. When the characters enter and exit the screen, it seems that the characters take off to the sky or descend from the sky, creating a sense of emptiness and dreaminess, which is fascinating. The water screen movie projector is composed of mechanical device, control bracket, communication port, software, time signal interface and DMX512 interface.
The projector's engine is controlled by optical sensors with high precision. There are three control methods: programming control, direct control and utility control. The water curtain is more than 20 meters high and 30-50 meters wide. Various VCD discs or special water curtain films can be played on the water curtain. The film and television effects are peculiar, novel and an excellent advertising tool. Various squares and open spaces Water curtain film can be installed on the water surface.
The water curtain is usually more than 20 meters high and 30-60 meters wide. The screen of the water curtain movie has a strong sense of three-dimensionality and space. The characters seem to soar into the sky or fall from the sky, and merge with the natural night sky. This kind of illusory and dreamy feeling, coupled with laser patterns, makes the scene more magnificent and magnificent. Water curtain movies are suitable for major festivals, large squares, and theme parks. ’
Zhao Zhongyao watched Feifei and talked about some knowledge about the water curtain movie. After Feifei listened to it, he knew what the water curtain movie was all about.
‘Dad, that said, we are now watching a luxurious water curtain movie for free. Feifei looked at Zhao Zhongyao with some excitement and said.
‘Of course, that’s the case too! It's just that it's not ordinary people who perform for us. It's nature. Because it is impossible for ordinary people to perform such a spectacular water curtain movie. Zhao Zhongyao said with a smile again.
‘Dad, how can the phenomenon we see now be so magical! How can the mirage and the water curtain movie be combined? Although Feifei understands the water curtain movie, he still doesn't quite understand the combination of the mirage and the water curtain movie.
‘This may be because the place itself is very special. In this Bermuda Triangle, mirages should always be seen. And such huge waves also happen from time to time. When both happen at the same time, we can also see such a wonder. Zhao Zhongyao looked at Feifei again and said.
‘Oh, that’s how it is! After hearing what my father said, Feifei understood what was going on.
But when Zhao Zhongyao and Feifei were talking, the huge wave had already reached them. The previous mirage and water curtain movies have also disappeared. They can't see any tall buildings. All he saw was a huge wall of water pounced on them.
‘Dad, what shall we do? When Feifei saw the situation, she became scared again. After all, he had never seen such a scene before.
‘Don’t worry, we just fly. At this time, Zhao Zhongyao, although he was a little scared, he was not worried about anything. Big deal, just let the spacecraft fly, it's not enough. As long as they fly up, this wall of water will be of no use to them.