What's the difference between sunset and sunset?

Thank you for your invitation. Let me talk about the different concepts of sunset and sunset glow. 1. Sunset red refers to the change when the sun goes down. There is an old saying called "to see the sun, for all his glory" which describes the beautiful red light when the sun goes down. A poem by Li Gou, a poet in the Song Dynasty, says: "People say that the sunset is the end of the world, and they can't see home if they look at the end of the world. I hate that Bishan is separated from the sun, and Bishan is still covered by dusk clouds. " Therefore, according to the beautiful scenery of the sunset, people come up with this adjective. "Sunset Red" refers to a beautiful metaphor when the sun goes down. 2. Sunset: refers to the afterglow when the sun goes down. Poems by Li Shangyin in Tang Dynasty: with twilight shadows in my heart and I have driven up among the Leyou Tombs. The sunset is infinitely beautiful, buried by the coming night ". The colorful glow after sunset in the west, the sunset glow is the reflection of the light when the sun sets, and the beautiful scenery of the sunset appears in the atmosphere-called "sunset glow".

1. Different definitions

Sunset: Sunset refers to colorful clouds appearing on the horizon around sunset in the evening. The formation of sunset glow is due to the scattering of light by air. When sunlight enters the atmosphere, it will scatter when it meets atmospheric molecules and particles suspended in the atmosphere.

these atmospheric molecules and particles themselves do not emit light, but because they scatter sunlight, each atmospheric molecule forms a scattered light source.

Sunset: refers to the evening sun; Also refers to the west of the mountain; It is also used to describe old age. As it is near dusk, the sunset is usually orange-red.

2. Different sources

Sunset: The first scene of Cao Yu's Thunderstorm: "She feels that her summer has passed and the sunset of her life is about to dim."

Sunset: Bing Xin's "For a Little Reader" 22: "Every evening, I go to the top of the mountain alone to watch the sunset, and watch the sunset fall from the top of the highest peak in Asia, which is as red as fire!"

3. Different formation principles

Sunset: The formation of sunset glow is due to the scattering of light by air. When sunlight enters the atmosphere, it will scatter when it meets atmospheric molecules and particles suspended in the atmosphere. These atmospheric molecules and particles themselves will not emit light, but because they scatter sunlight, each atmospheric molecule forms a scattering light source.

according to the Rayleigh scattering law, the light with shorter wavelengths such as purple, blue and cyan in the solar spectrum is most easily scattered, while the light with longer wavelengths such as red, orange and yellow has strong light transmission ability.

Therefore, we see that the clear sky is always blue, while the light above the horizon is only yellow, orange and red with longer wavelength. After these rays are scattered by air molecules and water vapor and other impurities, the sky there will be colorful.

Sunset: Astronomers have long discovered that the earth's atmosphere scatters light. In 1871, the British scientist Rayleigh proved that the scattering of short-wave light is much stronger than that of long-wave light, so the short-wave light-purple light in sunlight is scattered by tiny dust and air molecules in the atmosphere more than 1 times stronger than that of long-wave light-red light (which can first explain why the sky is always blue).

At sunset and sunrise, the atmosphere penetrated by sunlight thickens, and yellow and red light have the greatest penetrating power, so the sun looks dark yellow and deep red. 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.

There are obvious differences between sunset and sunset. Simply understand: sunset refers to the sun in the evening. Sunset refers to the clouds in the evening.

"Sunset"

The sky is red and rosy, and the mountains are all dyed with maple.

the fishing boat is rippling, and the shadow is broken in the jasper.

sunset glow! It is the light from the sunset that is called sunset glow. There is a sunset before a sunset!