A little before the sun goes down at dusk, why are the clouds sometimes red?

Upstairs, please note that this has nothing to do with the sun itself.

It's very simple: because the speed is equal to the wavelength multiplied by the frequency, and the frequency is determined by the light source, the frequencies of the seven colors of light in visible light are all the same, the only difference is their wavelength, red light has the longest wavelength, so it can be seen that red light has the fastest speed. The faster the ray, the smaller the refractive index, that is, the smaller the deflection from one medium to another, and in the morning and evening, the sun's rays pass through the atmosphere thicker than usual, while only the fast rays with a small refractive index can"Break through the obstacles"Beyond the obstruction of the atmosphere.

The other slower rays of light are dispersed and refracted as they pass through the atmosphere"Dead"On the way. So what we see in the morning and evening is a red cloud. At other times, the atmosphere through which the Sun passes is thinner, and this thickness is just enough for blue light to be cast on the sky, while other colors are not"Overrun"That's it"Didn't show up".

The sun is a huge fireball of rotating gases. The heat generated by the nuclear reaction at the center of the sun erupts from the surface to form churning gases called rice grain tissue. The diameter next to the core is the radiation layer, the troposphere, and the photosphere and the gas color layer.

The sun has 1600 high-temperature protons, which are astigmatized by radiation, and the sun at dusk is not dazzling, but it is extraordinarily red, and it becomes red when it hits the clouds.

When the sun's rays hit the ground, they pass through a thicker layer of air than the sun peaks at noon. The yellow, green, cyan, blue, and violet light in the sunlight is exhausted after walking far in the air layer, and cannot pass through the air layer; Only red and orange light can poke its head through the layers of air and dye the horizon red. The presence or absence of clouds has a lot to do with the thickness of the clouds, the type of clouds, and the humidity of the air.

Because there is an atmosphere around the earth that scatters sunlight, and there is more moisture in the air in the morning and evening

When the sun sets, the clouds on the horizon are often red, like fire.

People call this reddish cloud a fire cloud.

The setting sun stained the sky blood-red, and there seemed to be a fire in the sky. As the sun rises and sets, you will notice that the sun is always red in fact, it is the air that makes the sun red.

Because our earth is surrounded by a thick layer of air. We look at the sun beneath this thick layer of air. Although the air is colorless and transparent, it contains countless gas molecules, dust, and small water droplets. These things reflect sunlight, scatter part of it, or refract it back.

The Earth's atmosphere is one of the main factors that determine the color of the sunset. Most of the atmosphere is made up of gases, which are mixed with a small number of other molecules. Because the atmosphere completely surrounds the Earth, it affects every aspect of your eyes.

The most common gases in our atmosphere are nitrogen (78%) and oxygen (21%).

The remaining 1% is made up of trace gases such as argon, water vapor and many fine solid particles such as dust, soot and ash, pollen and salt, and there may be more water in the air after a storm or near the ocean, on the other hand, volcanoes can emit large amounts of dust particles into the atmosphere. Pollution is different from gases or smoke and ash added to the atmosphere. The seven colors of sunlight come with different personalities, such as yellow, green, blue, blue, and purple, all of which are weaker and when they come into contact with gas molecules, dust, and small water droplets in the air, they get blocked and turn around and shoot elsewhere.

Sooner or later, the sun will tilt on the ground, and the layer of air it passes through is much thicker than usualThe yellow, green, blue, and purple rays are almost blocked, leaving only the red and orange lights, so that the sun looks red in the morning and evening.

As the sun sets, the clouds in the sky turn white and then red, and the color of the white clouds gradually turns from white to red. Sunset is the evening sun; It also refers to the west side of the mountain; It is also used as a metaphor for old age. People love to watch the sunrise and marvel at the spectacle of the sun rising.

As for the sunset, few people linger to watch and chant to depict.

When the sun sets, what color is the cloud in the sky, most people think that it is a fiery red glow, but it is not.

The first is to make sure that the clouds in the sky are in that direction when the sun sets.

The second is that the thickness of the cloud is also a factor that affects the color.

The main thing is the size and shape of the cloud.

When the sun sets, the clouds are in the west, and the color of the clouds is from black to white, and from white to fiery red.

Sometimes red with yellow, sometimes blue with purple, and sometimes several colors mixed together, it is really unpredictable and unbelievable. Sometimes red with yellow, sometimes blue with purple, and sometimes several colors mixed together, it is really unpredictable and unbelievable. Sometimes red with yellow, sometimes blue with purple, and sometimes several colors mixed together, it is really unpredictable and unbelievable.

First fiery red, then crimson, and finally reddish.

When the sun gradually sets, the atmosphere through which the light passes will gradually thicken, and the water vapor and some other very fine impurities in the atmosphere have the effect of blocking the sun's rays, the higher frequency, the shorter wavelength of the violet light area can not pass through these barriers, and the lower frequency, the longer wavelength of the red light area of the light can "bypass" these obstacles to the end of your eyes, so looking at the sky is red. In addition, the atmosphere is originally a place where various impurities float, and a part of the sun's rays is constantly reflected and refracted by these impurities and "diffusely reflected" in all directions, reflecting on the outer edge of the clouds, and it becomes a red cloud.