Aurora, a brilliant and colorful plasma phenomenon, appears at night in the high altitude near the north and south poles of the earth. It is called the Southern Lights at the South Pole and the Northern Lights at the North Pole. Earth's auroras are produced by the excitation of molecules or atoms in the upper atmosphere by a stream of high-energy charged particles from the Earth's magnetosphere or the Sun.

Of course, this is the cognitive generation of modern people, and people don't know that the aurora is generated. In an era when even earthquakes could be regarded as the wrath of the gods, the aurora became even more mysterious.

"Hetu Ji Ming Zheng" said: "Fubao (the mother of the Yellow Emperor) saw the big electric light around the Big Dipper Power Star, shining in the suburbs, and felt pregnant for twenty-five months, and gave birth to the Yellow Emperor Xuanyuan in Qingqiu. "This is most likely a reference to the aurora.

Legend has it that one day, more than 2,000 years BC, night came. As the sun set, the night spread its black wings across the land of China, covering up distant mountains, nearby trees, rivers and mounds, and everything. A young woman named Fu Bao sat alone in the wilderness, a bay of autumn water shining with fiery passion under her eyebrows, obviously fascinated by the quiet of the night. The night sky is like an endless sea, appearing vast. Serene and mysterious. On the canopy, the stars twinkle and shimmer, quietly overlooking the black ground, suddenly, in the Big Dipper, a rainbow-like magical light ribbon is sprinkled, like smoke and fog, swaying, moving and quiet, like flowing clouds and water, and finally turned into a huge halo, lingering around the Big Dipper. At that time, the brightness of the ring increased dramatically, as if the bright moon was hanging in the sky, pouring a pale silver light on the earth, reflecting the entire field. Everything is clear and distinct, the shadows are visible, and everything becomes alive. Seeing this scene, Fu Bao's heart couldn't help but move. As a result, she was pregnant with Rokko and gave birth to a son. This boy is the Yellow Emperor Xuanyuan. This is probably one of the oldest myths and legends about the aurora in the world.

In addition, there is also a record of the aurora in the ancient book "Classic of Mountains and Seas" in China. The book talks about a god in the north, shaped like a red snake, shining in the night sky, and its name is Candle Dragon. There is the following description of the Candle Dragon's "Great Wilderness North Classic": "Beyond the Northwest Sea, north of Chishui, there is Zhangwei Mountain. There is a god, the face of the human snake is naked, the eyes are straight, the eyes are obscure, and the sight is clear. No food, no sleep, wind and rain are exhausted. It is the candle nine yin, and it is called the candle dragon. "The candle dragon referred to here is actually the aurora.

The term aurora is derived from the Latin word Ios. Legend has it that Ios is the embodiment of "Dawn" in Greek mythology, the daughter of the Greek god Titan, the sister of the sun god and the goddess of the moon, and the mother of many stars such as the north wind and the evening star. Aurora was also said to be the wife of Orion. In the artwork, Ios is depicted as a young woman who either walks with a young man in her hand or rises from the sea on a four-wheeled chariot driven by a flying horse, and sometimes she is depicted as a goddess holding a large jug of water, spreading her wings, and giving alms to the world, like the Guanyin Bodhisattva in the story of Buddhism in China, spreading nectar to the world.

The Eskimos believed that the aurora was a torch for the spirits of the dead to go to heaven, while the aborigines saw the aurora as a deity, believing that the fast-moving aurora would make the sound of the gods walking in the air, which would take away people's souls and leave them with bad luck.

Seneca, in his first book, Tianwen, said that the aurora was diffuse, and that many of the drawings were from Aristotle, and he classified the aurora, described the various colors, and judged for himself whether they were above or below the clouds. He recalls that during the time of Tebilius, there was a very reddish and intense aurora on Ostia Antica, and the nearby garrison rushed to the city out of duty to fight fires. The ancient Greek explorer/geographer Pytheas also mentioned the aurora.

Auroras have been known by many names throughout history, with the Cree (Indians of North America) calling them "dancing elves". In medieval Europe, the aurora borealis was seen as a sign from the gods.

And in fact?

Aurora is a process of mass electrical discharge around the Earth. Charged particles from the sun reach the vicinity of the Earth, and the Earth's magnetic field forces a portion of them to concentrate along the magnetic field lines to the north and south poles. When they enter the upper atmosphere of the polar regions, they collide with and excite the atoms and molecules in the atmosphere, and the light produced by the energy release forms a large circle around the magnetic poles, known as the aurora.

Many scientists are studying the aurora in depth. The aurora that people see is mainly caused by electrons in the stream of charged particles. Moreover, the color and intensity of the aurora also depend on the energy and number of sedimenting particles. To use a figurative metaphor, it can be said that the aurora activity is like a live television screen of magnetospheric activity. The deposition particles are the electron beam of the television, the Earth's atmosphere is the television screen, and the Earth's magnetic field is the electron beam-directed magnetic field. Scientists get a lot of information about the magnetosphere and electromagnetic activity in solar-terrestrial space from this large natural television. For example, polar spectroscopy can be used to understand the source of the sedimentation particle beam, the type of particles, the magnitude of energy, the structure of the Earth's magnetic tail, the interaction between the Earth's magnetic field and the planetary magnetic field, and the mode and extent of the impact of solar disturbances on the Earth.

Auroras are beautiful, but the energy they cast in the Earth's atmosphere is comparable to the amount of electricity generated by power plants around the world combined. This energy often disrupts radio and radar signals. The strong current generated by the aurora can also be concentrated in long-distance telephone lines or affect the propagation of microwaves, causing partial or complete "loss" of current in the circuit, and even serious interference in power transmission lines, so that some areas temporarily lose power supply. How to use the energy generated by the aurora for the benefit of mankind is indeed an important mission of the scientific community today.

The aurora borealis is regarded as one of the most beautiful wonders in nature.

As early as more than 2,000 years ago, the ancestors of China began to observe the aurora, and there are rich records of the aurora.

The aurora is diverse, colorful, and beautiful in shape, and there is no phenomenon in nature that can compare with it.

It is difficult for any colored pen to paint the dazzling light that frolicks and changes in the cold polar air. Sometimes the aurora appears for a very short time, like a festive fireworks flashing in the sky and disappearing without a trace, sometimes it can shine in the sky for several hours, sometimes it is like a ribbon, sometimes it is like a fire, like a huge screen full of colors, as if a dome movie is being shown, giving people a visual enjoyment. If we take a spaceship over the north and south poles of the earth and look at the earth from far away, we will see a shining ring of light around the earth's magnetic poles, which is called an aurora egg.

Because they are slightly flattened towards the side of the sun and slightly stretched on the side facing the sun, they take on an egg-like shape. The aurora egg is in a continuous change, sometimes bright and sometimes dark, sometimes stretching towards the equator, sometimes shrinking towards the pole. The aura at midnight appears to be the widest and brightest.

The results of long-term observations show that the most frequent places where the aurora occurs are in two ring-shaped regions near the north-south magnetic latitude of 67 degrees, which are called the southern aurora region and the aurora borealis region. Aurora activity occurs almost every day in the Aurora Zone. The inner region surrounded by aurora eggs, often called the aurora region, is less likely to occur than in the lower latitude regions. Auroras are rare in the middle and low latitudes, especially near the equator, but that doesn't mean they aren't visible at all. On the night of February 10, 1958, an extraordinarily large aurora was visible in the tropics, and showed a vivid red color.

These auroras are often associated with very large solar flares and intense geomagnetic storms.

In the cold polar region, people look up at the night sky, and often see the aurora in various shapes and colors. It is no exaggeration to say that there are simply no two identical auroras in the world, and from the perspective of scientific research, people divide the auroras into five types according to their morphological characteristics: one is the auroral arc with neat and slightly curved bottoms, the second is the auroral belt with bent and twisted streamers, the third is the auroral sheet like a cloud, the fourth is the auroral mantle with a veil like a veil, and the fifth is the ray-like aurora along the direction of the magnetic field line.

The brightness of the aurora also varies greatly, from the brightness of the Milky Way nebula that can be seen just now, to the brightness of the moon at the time of the full moon.

When the strong aurora appears, the outline of the object on the ground can be illuminated, and even the shadow of the object will be illuminated. The most impressive thing is, of course, the ever-changing and wonderful scene caused by the movement of the aurora. We often say when we describe things getting faster: "In the blink of an eye, the old hen becomes a duck." "The aurora is like that, turning into clouds, raining, unpredictable, and it often happens in seconds or minutes. The movement of the aurora is a drama of light staged by the master of magic, the master of magic, with the sky as the stage, up and down for hundreds of kilometers, and there is even a nearly 10,000-kilometer-long aurora belt.

This magnificent natural scene, as if stained with a little fairy spirit, is quite mysterious.

What is breathtaking is the color of the aurora, which can no longer be depicted in color. In the final analysis, its true colors are nothing more than red, green, purple, blue, white, and yellow, but nature, a super painter, uses a magical technique to match and combine shades and shades, hidden light and shade, and a combination, good guys, and suddenly becomes a kaleidoscope. According to incomplete statistics, there are more than 160 shades of the aurora that can be clearly distinguished. The aurora is so colorful, so varied, and in such a vast and boundless vault, in the dark and silent cold night and in the deserted polar area, this situation and this scene, at this moment, in the face of colorful aurora graphics, can you say that it is not intoxicating and fascinating?

It is no wonder that in the notes of many polar explorers and travelers, the description of the aurora is often exhausted, and they have to say things like "I can't describe it in words" and "I can't find the right words to describe it" as an excuse. Yes, ordinary words such as beautiful, magnificent, and wonderful are unusually pale and weak in front of the aurora, and it can be said that even if there is a wonderful pen, it is difficult to describe the spirit, momentum, and temperament of the aurora.

Zhou Fangyuan and Lin Yueya stood under the aurora, the two held hands, looked up at the magnificent and abnormal aurora in the sky, and the whole person was addicted to it.

After looking at it for a while, Zhou Fangyuan suddenly felt that Lin Yueya's hands were trembling, and hurriedly looked down, but saw that Lin Yueya was already in tears at some point.

"What's wrong?"

He immediately became nervous.

"No, it's nothing, I just think of my mom......"

Lin Yueya said in a low voice.

Her mother, Zhou Fangyuan, also knew that she died when she was very young. When they first met, Lin Yueya said that her parents were divorced, but in fact, she lied at that time. It's not okay not to lie, the atmosphere in their hometown is like this, children who don't have a father or mother are easy to be bullied by children of the same age. But if the parents are divorced, it will be different, giving the impression that the child will also be as wild as his/her father or mother, and the child will not dare to bully such a person.

So Lin Yueya has developed such a habit over time, as long as others ask, she will say that her parents are divorced. But in fact, her mother died long before she was in elementary school. There were a few years when she was reluctant to pay attention to her father Lin Shengju, and it had something to do with it. may have hurt her vitality when she gave birth to her, Lin Yueya's mother has always been in poor health and often needs to be taken care of. During that time, Lin Shengju's company was a critical period of development.

In fact, you can't say who is at fault in this matter, Lin Shengju later Zhou Fangyuan also quietly investigated, there is indeed no outer room, and he is not lying, he is indeed working hard to make the company better. If the company is good, the family will have money, and the family's life will be better, no matter how bad it is, it is okay to hire a nanny to take care of Lin Yueya's mother.

But you say it's a coincidence, it's just that in those two years, Lin Yueya's mother's body took a sharp turn for the worse, and finally died. The most uncomfortable thing is that when Lin Yueya's mother died, her father was not around, so she had a lot of opinions about her father for a few years, almost to the point that she couldn't communicate.

"She told me before that when I grew up, she would take me to see the aurora...... I've always remembered it, but it's a pity she's gone......"

That's the most painful thing.

The son wants to raise but does not wait, and there is nothing more painful in the world than this.

What else could Zhou Fangyuan say, he could only hug him gently.

"Don't worry, Auntie has a spirit in the sky, and if she sees that you can be happy, she will be very happy. ”

Very unnutritious words of comfort, but apart from such words, Zhou Fangyuan didn't know what to say. 、

"Well, I know, so I'm very happy now," Lin Yueya had tears on her face, but her smile was even brighter, in Zhou Fangyuan's eyes, this smile overwhelmed the aurora above her head, "I feel very happy to know you and watch the aurora with you, if my mother knows, she will definitely be happy for me." ”

Well-behaved, it really makes people feel a little distressed.