Why are some whites darker
Why can clouds be white, gray or black?
"A sheep ? But no, that's a dinosaur! Really? ”You see all these shapes, which are constantly changing, in the ...? Yes exactly, in the clouds!
By the way, they also have different shades! But why ? Because someone painted it? Oh nonsense!
As soon as it comes to colors, light is also involved. And in our case, it's also about light. But not only ... Every cloud is unique: some have strange shapes, others have different colors, sometimes black, then gray and sometimes white. But above all, they are more or less dense. And it is this property that interests us, because it is partly responsible for the different color tones.
How is that possible? Quite simply: if the cloud is very dense, it means that it consists of many water droplets and the sun is difficult to see through. The cloud therefore appears to be gray or even darker and sometimes even black in the case of a very dense cloud. These dark hues can also arise when the cloud is in the shadow of other clouds.
But if the cloud is not very dense, it means that it consists of fewer water droplets, then the sun can shine through well and the clouds appear to be white. Actually, the cloud's tiny water droplets reflect sunlight, known as white light. This is a mixture of several colors and therefore several wavelengths of light. The water droplets are much larger than the air molecules, but they are the right size to scatter the light in all directions. That is why we see white light and also white clouds.
But watch out, we only see these different hues when we are on earth. In an airplane, for example, we only see white clouds. This is because we are like the sun above the clouds. So the sun doesn't have to shine through the clouds to get to our eyes. Everything is a matter of point of view!
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