1. Nalan Rongruo - "Picking Mulberry Seeds? Chanting Snowflakes on the Wall":
It is not about being obsessed with appearance, but prefers cold places. It has no roots and buds, it is not a flower of wealth in the world.
Who can cherish Xie’s mother after saying goodbye and drifting to the end of the world? The cold moon is sad, the west wind is thousands of miles away, and the sea is sandy.
2. Gu Cheng-"Snowman"
In front of your door
I built a snowman
Represents the clumsy me< /p>
Have you been waiting for so long?
You take out a lollipop
A sweet heart
Bury it in the snow< /p>
Say this to make you happy
The snowman did not smile
Silently
Until the scorching sun of spring
Melted clean
Where are the people
Where is the heart
Beside the small pool of tears
Only bees
< p>Extended information:Snowflakes are mostly hexagonal. The reason for the variety of patterns is that the most hexagonal molecules in ice are. Different from the curvature at the corners, there are correspondingly different saturated water vapor pressures. The saturated water vapor pressure at the corners is the largest, followed by the edges, and the smallest on the plane.
When the actual water vapor pressure is the same, since the saturated water vapor pressure of each part of the ice crystal is different, the growth of sublimation is also different. For example, when the actual water vapor pressure is only greater than the saturated water vapor pressure on the surface, the water vapor only condenses on the surface, forming columnar snowflakes. When the actual water vapor pressure is greater than the saturated water vapor pressure on the edge, sublimation will occur on the edge and on the surface.
Since the speed of sublimation is also related to the curvature, the sublimation is faster in places with large curvature. Therefore, the sublimation is faster on the edge of the ice crystal than on the surface, and flaky snowflakes are often formed. When the actual water vapor pressure is greater than the saturated water vapor pressure at the corners, although there is water vapor condensation on the surface, edges, and corners, the sharp corners are prominent.
The supply of water vapor is the most abundant and the sublimation grows the fastest, so dendritic or star-shaped snowflakes are often formed. In addition, the ice crystals are constantly moving, and the temperature and humidity conditions they are in are also constantly changing, which causes the growth rates of various parts of the ice crystals to be inconsistent, forming a variety of snowflakes.
Baidu Encyclopedia-Snow