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+ By Nisavac Wallpapers
- Easy-to-browse interface enables you to find the desired wallpaper in no time!
- Customize the wallpaper to fit your taste and screen!
- Zoom, un-zoom, rotate, move, scale, adjust brightness, add various effects and save your wallpaper design!
Snow; a feathery fairyland of soft, white fluff — if it were warm, it would be perfect! But even though it’s cold, snow is (almost) perfect. Why are snowflakes so breathtaking? Why are humans and animals so attracted to snow? Well, everyone looks at things differently but whether you love it or hate it, snowfall can be a beautiful work of art. It is an intricate creation.
In order to turn clouds' water droplets — rain — into delicate crystals, temperatures must be at or below freezing; 32 degrees Fahrenheit. Cold air freezes the water vapor in the atmosphere and ice crystals develop from atoms to form six-sided figures. As more crystals freeze, they fuse together into a snowflake. They vary as to size and look; this is dependent upon the amount of moisture in the atmosphere. For example, on a cloudy day, if the air is at or near to 32 degrees Fahrenheit, its six branching arms might have “feathers” or “ferns” (called “stellar dentrite” flakes). They can also have more solid branches to them. If the temperature is colder than 32 degrees — at 20 degrees, for example — the flakes might have six long, needlelike branches or thicker-looking columns. When launching from clouds, newly falling ones may have a radial symmetry to them or they may be lopsided. However, flakes are generally broken or misshapen by the time, and after, they reach the ground.
The ground is warmer than the atmosphere and the temperature of a snowflake changes when it lands. When a flake lands in more snow, the precipitation melts and refreezes, joining the dense mass. If they fall at high altitude, snow packs may develop — layers of packed snow that exist in climates that have extended periods of cold weather. Snow pellets, called graupel, originate from these creations that are covered with frozen crystals. Graupel (snow pellets) are different from hail; they are small and fall apart easily after hitting the ground or when touched. Hail — which comes in various sizes — is comprised of layers of ice. It is hard to the touch.
We’ve heard it many times — ‘no two snowflakes are alike.’ Fact or fiction? Well, it depends on who you believe. Because there are so many factors in their development — changes in temperature, humidity and airspeed — the launch and landing of two is highly unlikely. On the other side of the coin, some researchers and statisticians think it is (or should be) possible that two of them can be exactly the same. Scientists and others have been photographing and studying these creations from, at least, the late 1800s. The argument is based on whether it presents actually a frozen hexagonal prism.
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