1, colorful rainbows, like the magic of nature, bring endless surprises and beauty to people.

The rainbow stretches in the sky, and the fantastic colors are intertwined, which is intoxicating.

An elegant rainbow appears in the sky, just like a bridge to happiness.

4. The colors of the rainbow are colorful, just like the bright colors sprinkled on the sky by the painter.

At sunset, the rainbow hangs in the sky, covering the earth with a mysterious and gorgeous veil.

6. The rainbow is elegant like a ribbon, spanning the sky and injecting vitality and vigor into the whole world.

7. The rainbow is engraved in the blue sky, and its beauty far exceeds that of any artwork.

8. The rainbow after the rain brings hope and joy to the earth and makes people feel happy.

9. The rainbow in the morning light hangs lightly among the clouds, as if it were a gift from God.

10, the rainbow is like a smile in the sky, which makes people feel the beauty and tolerance of nature.

1 1, the rainbow is a miracle of nature. It shows the perfect fusion of light and color, which is intoxicating.

12, the beauty of the rainbow is like a silent poem, which makes people immersed in its unique rhythm.

13, every color of the rainbow is bright and pure, and they are intertwined to form a gorgeous picture.

14, the rainbow carries infinite hope, and it is a symbol of nature's love and blessing to people.

15, the rainbow is a miracle of nature in the sky, which makes us full of endless imagination about beauty and miracles.

The origin of rainbow

Rainbow is a natural phenomenon, which is formed by the refraction, reflection and refraction of sunlight by raindrops or water droplets. When sunlight passes through raindrops or water droplets, the light is refracted and reflected, and then dispersed inside the water droplets, and decomposed into spectra of different wavelengths to form seven colors of light.

The formation process of rainbow can be simply described as follows: sunlight shines on raindrops, and part of the light is refracted from the surface of raindrops to raindrops, then totally reflected, and then refracted from the surface of raindrops. Different colors of light are refracted and reflected at different angles in this process, and finally an arc-shaped rainbow is formed.

Rainbow usually appears after rain, because raindrops or water droplets are needed to refract and reflect light. At the same time, the condition of observing the rainbow also requires the sun to be in a specific position, that is, the sun is behind the observer and forms an angle of about 42 degrees with the rain. Rainbow is one of the wonderful landscapes of nature, which brings people a sense of joy and hope.