Non-caring and light, cold places are better. Don't have a bud, it is not a rich flower in the world.
After thanking my mother, who can cherish it and wander around the world? The cold moon is sad, and the west wind is boundless in Wan Li.
2. Gu Cheng-"Snowman"
In front of your door
I made a snowman.
On behalf of clumsy me
Keep you waiting?
You take out a lollipop.
Sweet heart
Buried in the snow
It will make you happy to say this.
The snowman didn't laugh.
Quiet, don't say a word.
Until the sunshine of the hot spring
Melt clean.
Where is that man?
Where is the heart?
A small pool of tears
Only bees
Extended data:
Snowflakes are mostly hexagonal, and there are so many patterns because the molecules of ice are mostly hexagonal. For hexagonal flake ice crystals, their saturated vapor pressures are different because of their different curvatures on the surface and edges, in which the saturated vapor pressure at the edges is the largest and the saturated vapor pressure at the edges on the plane is the smallest.
Under the same actual water vapor pressure, the sublimation growth of ice crystals is different because of the different saturated water vapor pressures of each part. For example, when the actual vapor pressure is only greater than the plane saturated vapor pressure, the vapor only condenses on the surface, forming columnar snowflakes. When the actual vapor pressure is greater than the saturated vapor pressure of the edge, condensation will occur on the edge and surface.
Because the speed of sublimation is also related to curvature, where the curvature is large, sublimation is faster, so the sublimation of ice crystal edge is faster than that of surface, forming more flake snowflakes. When the actual vapor pressure is greater than the saturated vapor pressure at the corner, although there is vapor condensation at the surface, edge and corner, the sharp corner is prominent.
Water vapor is the most abundant, and condensation grows fastest, so many branches or star-shaped snowflakes are formed. Coupled with the constant movement of ice crystals, their temperature and humidity conditions are constantly changing, which makes the growth rates of various parts of ice crystals inconsistent and forms various snowflakes.
Baidu encyclopedia-snow