Cai Yun is actually a special atmospheric phenomenon, which is due to. The moisture in the atmosphere is formed by the refraction of the sun's light, because when the sun passes through the marble, some raindrops will be suspended in the air, and these raindrops will be diffracted in different directions, and then bright light and dark light will appear at the intersection of light waves, and then different colors will form many colors, and then gradually a colorful cloud will be formed. Moreover, the farther away from the sun, the lighter the color of the clouds will be, and the clouds are irregular and unevenly distributed, so the clouds are generally in an irregular state.
Clouds in the sky pass through the water vapor on the ground to form a kind of water vapor. When water vapor is cold in the air, it will be cold and liquefied into small water droplets. This small water drop will not directly fall to the ground, but will condense into small ice crystals in the air and then gather in the air to form a floating cloud. This floating cloud will be in the air. When the density is unbalanced, the sunlight will be refracted through the cloud hole, and the light will also be diffracted after refraction.
The appearance of colorful clouds in the sky is actually a natural phenomenon, and it is only something that people think is unusual that makes such colorful clouds appear. As a sign and omen, when colorful clouds appear, people will think that they are auspicious clouds, because auspicious clouds are rare in life, and this natural phenomenon will occur in Yunnan, south of colorful clouds. Clouds will have different shapes over time, because they have colorful colors and are very beautiful. People will be excited to see them, just like rainbows after rain. Cloud is also a beautiful natural phenomenon in nature. When they appear in the air, they mean good signs and bring better luck.