Through the discussion of the "sunset" image in classical poetry, this paper points out that the poet uses the "sunset" image to express his understanding of the universe, society and life, and to express his personal physiological interest, which shows the unique aesthetic significance of the "sunset" image in China's classical poetry.
Sunrise in the morning and sunset at night are natural phenomena that we are used to. Have you ever observed such a natural phenomenon with your heart? Do the rising sun and the slowly setting sunset evoke your beautiful reverie? Have you ever thought about some scientific truth contained in it? Read this article for yourself, and you will get some inspiration from it.
The illusion of sunset
People love to watch the sunrise and admire the spectacular scene when the sun rises. However, for the sunset, few people stay to watch and chant. What is the reason? I'm afraid it's an emotional influence, "the sun is dying." Didn't even our ancients leave the poem "to see the sun, for all his glory, buried by the coming night [9]"?
In fact, the sunset is as spectacular and beautiful as the sunrise, mysterious and charming. If you have a chance to watch the sunset, it will fascinate you: the sun lies quietly on the western horizon, becoming so big, so deep yellow and crimson; It descends slowly, contracting and flattening as it approaches the horizon. If there are clouds in the sky, you will see a brilliant sunset; There are no clouds all day. Don't forget to look back. You will find a mysterious blue-gray dark arc in the sky behind you, and there is an obvious bright arc outside the dark arc. While the dark arc and the bright arc rise, charming purple light will appear in the western sky. As the sun goes down, the purple light moves down and disappears when it approaches the horizon. Unfortunately, this beautiful purple light is rare.
The sunset is really beautiful, colorful and unpredictable. However, the audience will not think that most of these strange scenes are illusions, and the sunset itself has not changed.
Astronomers have long discovered that the earth's atmosphere scatters light. 187 1 year, the British scientist Rayleigh [1 1] proved that the scattering of short-wave light is much stronger than that of long-wave light. Therefore, violet light, the short-wave light in the sun, is scattered by tiny dust and air molecules that are more than 0/0 times of the long-wave light intensity in the atmosphere (this can explain why the sun looks dark yellow and crimson at this time because the atmosphere penetrated by sunlight becomes thicker at sunset and sunrise, and the penetration ability of yellow and red light is the greatest. Generally speaking, there is more smoke and dust in the air at dusk than in the morning, so the color of sunset is different from that of rising sun.
Because the earth's surface and atmosphere are curved, the light near the horizon of the sun travels much farther through the atmosphere than the upper layer, so the light entering the bottom layer decays rapidly [12], and the shadow of the earth caused by the sun sinking into the horizon appears as a blue-gray dark arc in the sky; However, the upper atmosphere has a low density and weak light scattering, which leads to a bright arc on the dark arc. This wonderful atmospheric optical phenomenon rises to the zenith with the setting of the sun and disappears with the arrival of darkness. As for the beautiful purple light, it is caused by the superposition effect of human eyes, which makes the red light passing through the atmospheric dust overlap with the blue scattered light of the purer air in the upper atmosphere.
The illusion that the sun is flat appears not only at sunset, but also when the sun jumps out of the horizon. This is because when light passes through the air, the speed slows down by 87 kilometers per second, so the refraction of light changes accordingly. Therefore, when the lower edge of the sunset touches the horizon, the ratio of the height to the width of the sunset is 26.5 ∶ 32 through refraction, and the sun in the eyes of the viewer is naturally flat.
The most puzzling illusion is that the sun at sunset looks two and a half to three and a half times bigger than it did at high altitude, just like a huge jade plate hanging in the distance of the horizon. But in fact, astronomers outside the atmosphere have used various instruments, including cameras, to prove that the sun at dusk is the same size as the sun at noon.
sunset
xī
name
(of things. See you at half past the moon. Original meaning: dusk, evening)
With the original meaning [[sunset; Dusk]
Good evening, Mo Ye. -"Shuo Wen"
It is getting late. -"Poetry, Feng Wang Gentleman in Service"
It is windy in the east. -Zhou Li da Stuart. Sinon's note: "It is neutral to say that the sun goes down, and Dadong has it recently."
The first time I fainted was in the evening. -"Book Hongfan Five Elements" Note
Night markets, sometimes night markets, mainly sell husbands and women. -"Zhou Li, local officials, city department"
Thin shadows write micro-moons, thinning branches and horizontal evening smoke. -Song Luyou's "Plum Blossom with Wine"
It's sunny in the morning and cloudy at night. -Fan Zhongyan's "Yueyang Tower"
Another example is the sunset glow (the afterglow of the sunset); Sooner or later; Evening mist (sunset glow); Night market (fair trade at night)
Night [even; Night]
When is the evening? -"Poetry tang style Planning the Future"
Forever and ever. -"Poem Xiaoya White Pony"
It is never too late. -"Zuo Zhuan, Twelve Years of Success"
Swallow it in and out sooner or later -"Zhou Li Dawu"
A gentleman works all day, but if he works diligently at night, he is blameless. -"Doing One"
I don't know the palace in the sky, and I don't know the month and time. -Su Shi's "Water Tune Songs"
Another example is: going out early and returning late (describing working hard all day and no longer encouraging); Stay up all night; Can't sleep at night; Final night; A stormy night; Overnight; New Year's Eve (the night of the last day of the year); eve
Refers to the last season of a year or the "last period" of a month.
From dusk to dusk is the evening of a day; At the end of the month; From September to December, it is the eve of the year. -"Hong Fan's Biography of Five Elements" Note
The house is full on a moonlit night. -"On Xun Gigi Lai"
Pass it to "Sunseeker". Night tide [night tide; ereningtide】
The official gives the track symbol, taking advantage of four o'clock. -"Guan Xu"