Why is snow white?
When a Russian person is asked to imagine winter, the first thing he sees in his imagination is snow, a snow-white cover that has enveloped everything. We are so accustomed to the color of snow, that we do not even think about why the snow is white.
Why is snow white
All colors perceived by us depend on the sun's rays. Black objects completely absorb sunlight, and therefore they are perceived by us as black. And if the object fully reflects a ray of sunshine, then the color will seem white to us.
What is snow, in fact? This is frozen water, hex ice. And water and ice are colorless. Why then is the snow white? The ice remains colorless, as it passes through the entire sunbeam. Yes, and each snowflake would pass through all the light and also would not have the color. But snowflakes usually fall on each other in random motion. And together they become opaque, and white.
To understand why the snow is white, why it reflects the rays of the sun, we need to look at the composition of the snow.Snow is formed from snowflakes, and snowflakes from a huge number of crystals. These crystals are not smooth, but with faces. This is the answer to our question why the snow is white. It is from the edges that the sunlight reflects.
The water in the atmosphere is steam, it freezes, and transparent crystals form. From the movement of air, the crystals move freely up and down. In this chaotic motion, the crystals are connected to each other. And when at last too many crystals are gathered together, then they begin to fall to the earth already in the form of snowflakes we are used to.
It turns out that the color of snow is white, because the light of the sun, which it reflects, is white. Think if the ray of the sun turned green or yellow, then the color of the snow was the same. Surely, many people noticed that during sunrise or sunset, it seems to us that the rays of the sun become pinkish, so the snow at this moment seems pink to us.
Does the snow have a different color
Who can give an affirmative answer to this absurd question? Do not immediately throw back this idea. In fact, it happened and such that colored snow fell. For example, once Charles Darwin described one such case.It was during one of his expeditions. Looking at the hooves of the mules, Charles Darwin saw that they were covered with red spots. It happened when the mules walked through the snow. It turned out that red snow was formed from the presence of red pollen in the air at the time when snow began to fall.