What's the difference between sunset and sunset?

Thank you for inviting me: 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 proverb called "See the sun, although it is glorious", which describes the beautiful red light at sunset. A poem by Li Gou, a poet in the Song Dynasty: "People say that the sunset is the end of the world, but you can't see your hometown when you look at the end of the world. I hate Bishan every other day, and Bishan is still covered by dusk clouds. " Therefore, people came up with this adjective according to the beautiful scenery of the sunset. "Sunset Red" refers to a beautiful metaphor when the sun goes down. 2. Sunset: refers to the afterglow when the sun goes down. Li Shangyin's poem in Tang Dynasty: There is a twilight shadow in my heart, and I walk through the graves of Leyou. The sunset is infinitely beautiful and buried by the coming night. " The colorful glow after sunset in the west is the reflection of light when the sun goes down, and the beauty of sunset appears in the atmosphere-called "sunset glow".

1, different definitions

Sunset: Sunset refers to the colorful clouds that appear 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 side of the mountain; It is also used to describe old age. Sunset is usually orange-red because it is close to dusk.

2. Different sources

Sunset: Act I of Cao Yu's Thunderstorm: "She feels that her summer has passed and the sunset glow of life is about to darken."

Sunset: Bing Xin "Send 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 mountain in Asia, as red as fire!"

3. The formation principle is different.

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 do not emit light, but because they scatter sunlight, each atmospheric molecule forms a scattered light source.

According to Rayleigh scattering law, light with shorter wavelength such as violet, blue and cyan in the solar spectrum is most easily scattered, while light with longer wavelength such as red, orange and yellow has stronger light transmission ability.

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

Sunset: Astronomers have long discovered that the earth's atmosphere scatters light. 187 1 year, British scientist Rayleigh proved that the scattering of short-wave light is much stronger than that of long-wave light. Therefore, the intensity of short-wave light-violet light scattered by tiny dust and air molecules in the atmosphere is more than 10 times that of long-wave light (which can explain why the sky is always blue).

Because at sunset and sunrise, the atmosphere penetrated by sunlight becomes thicker, and yellow and red light have the greatest penetration ability, so the sun at this time looks dark yellow and crimson. 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 is a clear difference between sunset and sunset. Simple understanding: Sunset refers to the evening sun. Sunset refers to the evening clouds.

sunset

The sky is red, and maple leaves are stained all over the mountains.

The fishing boat is rippling, and the jade is broken.

Sunset! This is the light from the sunset, which is called the sunset glow. There's a sunset before sunset!