Why are sunsets crimson? Detailed answer

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Why are sunsets crimson? Detailed answer

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Why are sunsets crimson?

Unforgettable crimson sunsets, warm iridescent colors - it's hard to imagine a more impressive picture. But sometimes, looking at all this, we say: "What a crimson sun!"

In fact, we know that the Sun itself did not become red and did not change at all. It just looks like this at certain times of the day. At the same time, for a person living several thousand kilometers to the west, the Sun does not look crimson or red at all.

The color of the sunset is influenced by the layer of air through which the sun's ray passes. The lower the Sun, the more atmospheric layer the sunlight has to overcome.

But first, let's remember that sunlight is a combination of all colors. Usually this combination of colors is perceived by us as white. But in the atmosphere there are particles of dust, water vapor and other impurities. When a beam of light passes through the atmosphere, different colors are scattered by these particles. In the atmosphere, purple, blue, and green diffuse better than red and yellow. When the Sun is low on the horizon, more reds and yellows are left in the atmosphere as a result of scattering, which is why the sunset looks reddish to us.

By the way, the blue color of the sky is also due to the scattering of light. Violet and blue have short wavelengths and are scattered by the atmosphere ten times more actively than the waves of the red part of the spectrum. This means that red rays pass through the atmosphere, while blue rays are scattered in the air by water and dust particles. When we look up, it is the scattered light that gives the sky its blue color.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Is there life in Antarctica?

Antarctica is the name given to the vast region adjacent to the South Pole. It includes Antarctica - the fifth largest of the earth's continents, slightly smaller than Europe and the United States combined.

This continent is the coldest and dullest part of the Earth's surface. It is surrounded on all sides by the most severe seas on the planet. Strong, harsh winds and snowstorms always rage on it, and its entire territory is covered with eternal snow and ice. It is so cold there that the whole mainland is a huge lifeless desert.

What is under the ice sheets of Antarctica? It is difficult to say, because it is still too poorly understood. The researchers managed to find deposits of coal and small veins of valuable minerals. However, their extraction is so difficult and expensive that they remain intact. Of the plants, only the most primitive forms exist there: mosses, lichens, lower fungi and algae, which have no nutritional value. Therefore, only such animals and birds live there that can get food from the sea.

Among the birds, skuas, polar gulls and several varieties of penguins should be mentioned. Penguins live and lay their eggs on the coast of the continent. Their wings are poorly developed and therefore penguins cannot fly, but they swim well. Seals and whales live in Antarctic waters.

Whaling is the only industry that thrives in the Antarctic regions. At one time, it reached such proportions that international agreements were required to put the capture of whales under control and thereby prevent their complete destruction.

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