What do the colors of the rainbow mean? Why is the rainbow curved?

After the storm, there will be a rainbow, which is enough to show the beauty and hope that the rainbow brings to people. We all know that the rainbow is colorful, and each of its colors represents a different meaning. Do you know what it means specifically? The following is compiled and shared by Encyclopedia Knowledge Network for you, I hope you like it.

Contents of this article

1. The meaning of the colors of the rainbow

2. Why is the rainbow arc-shaped?

3. Does the rainbow appear before or after the sun?

What the colors of the rainbow mean

The seven colors of the rainbow represent different meanings:

1. Red: warm, festive, passionate, evil-avoidance, danger.

2. Orange: warmth, food, friendship, wealth, warning.

3. Yellow: gorgeous, simple, bright, gentle and lively.

4. Green: life, safety, youth, peace, and freshness.

5. Blue: trust, vigor, refinement, sincerity, and beauty.

6. Blue: neat, calm, cool, stable and precise.

7. Purple: romance, elegance, mystery, and nobility.

Why is the rainbow curved?

Because the earth's surface is curved and covered by a thick atmosphere, the water content in the air after rain is higher than usual, and when sunlight shines into the small water droplets in the air, refraction is formed. At the same time, because the atmosphere on the earth's surface is curved, the sunlight is refracted on the surface to form an arc-shaped rainbow.

The light from the rainbow forms a cone. The tip of the cone is at your eye. The axis of the cone is parallel to the sun's rays and is oriented downward toward the antisolar point. Countless raindrops near the surface of the cone send sunlight into your eye to create the rainbow. The raindrops can be a few feet away or a mile or so. The distance of the raindrops does not matter, the rainbow looks the same.

A rainbow is a series of light rays in a specific direction that does not exist naturally and is not located at any specific point in space. Raindrops inside the cone light up the sky inside the rainbow. Raindrops outside the cone send no light into your eyes.

Does the rainbow appear before or after the sun?

1. The rainbow appears with the sun.

2. We need to turn our backs to the sun to see a rainbow. The rainbow appears in the west in the morning, and the sun appears in the east at dusk.

3. Rainbow is an optical phenomenon. It is easy to see when the humidity of the air is high enough and the sun comes out immediately after the rain. The higher the sun is, the smaller the possibility of seeing the rainbow. Therefore, it is easiest to see a rainbow in the morning and evening.

4. After it rains for a while, the sun comes out immediately after the rain stops. The probability of a rainbow appearing at this time is the highest. Rainbows often appear near waterfalls. You can also create a rainbow yourself. Turn your back to the sun and sprinkle a lot of water into the air to see it.