Little Cold | The coldness of the day, the warmth of the home

Release time:

2024-01-29 09:35


Little Cold | The coldness of the day, the warmth of the home


Today is a little cold solar term

That means we're in the middle of winter.

On such a cold day,

Send my greetings to you

A small cold is approaching, pay attention to keep warm!



We often refer to the small cold and the big cold as the midwinter, "the small cold and the big cold, frozen into ice masses".


As the climate changes, although almost every solar term is warming, the three coldest solar terms are always:The first small cold, small cold is the coldest solar term in the 24 solar terms, although it is called small cold.Second place is cold and third place is winter solstice.
Why will the small cold solar term called uncrowned king?
Two reasons:
1. it is the coldest, colder than the big cold, but only called a small cold.
2. it is the easiest to snow, it is easier to snow than light snow, but its name is not related to snow.
During the light cold season, sunshine and precipitation began to rebound at the bottom, and it was a strong rebound. But the temperature continues to bottom out and the winds are getting more manic.
Therefore, the weather with a little cold, according to Tao Yuanming, is:"The wretched wind,Fogging [y y y, dark]Snow on the day.Snowy, almost normal. Even in broad daylight, the sky is gloomy. "Jingfei is often closed during the day." People can only hide in the house all day, "separated from the world", and let themselves "closed" and completely isolated from the world.
In the middle of winter, the countryside is no longer elegant, only cold.Often "three nine twenty-seven, hedge head blowing chestnut[Bì Lì, Ancient Musical Instruments], forty-nine thirty-six, sleep at night like sleeping rough ". The wind roared and the fence made an instrumental sound.
The question is, since the small cold is colder than the big cold, is the coldest solar term in the 24 solar terms, then why is it still called the small cold? Is it the ancients who made a mistake?
On this issue, perhaps because--
First, we measure cold according to the temperature. When it is cold, it is the coldest, so it is said that it is the coldest. The ancients measured the cold according to the thickness of the ice layer. The ground was the hardest in the severe cold, so the severe cold was the coldest.
Second, the ancients defined the degree of cold, but also based on people's subjective feelings. In a small cold, although the weather is very cold, people's tolerance is fair and they don't feel extremely cold. When it comes to the severe cold, even if the temperature does not become lower, people have been tortured by the cold and tired, and may feel colder in the severe cold.
Third, the ancients believed in the concept of "things are extremely opposite". As long as summer starts to cool, it is autumn. As long as winter starts to warm up, it is spring. Two extreme seasons, the peak is always at the end. Therefore, the last solar term in winter has won the name of "big cold", while the coldest solar term can only be condescended to be called "small cold.
It is not necessarily the fallacy of the ancients to determine who is colder in the small cold and the big cold, but the main reason is that the ancient and modern perspectives for measuring the cold are different.
There may also be a reason whyDuring the pre-Qin period when the twenty-four solar terms began to sprout and were founded, the Central Plains region may indeed be colder than the small cold.To sum up, the coldest solar term is the small cold.
The arrival of the small cold
Means the coldest day of winter is coming
It is at this moment that winter is thick and thin.
Little chilly material
A Spring for a New Year
The literati


Will the perception of cold
Sprinkle into the poetry


Little Cold · Cold Words



All the springs are frozen, and I chant the cold more.
Leaning on Qiao Song in the middle of the night, I don't think it's full of snow.
-Tang Meng Jiao's "Bitter Cold Sing"








The general's fox fur is not warm,
All protect the treasure knife frozen to break.

-Tang Cen Shen's "Tianshan Snow Song Sends Xiao Zhi to Beijing"




Small cold, big cold, solar term, cold, coldest, ancients, beginning, is, temperature

Different applications and specifications of washed kaolin and calcined kaolin


Kaolin is a non-metallic mineral, which is a kind of clay and clay rock mainly composed of kaolinite clay minerals. Because it is white and delicate, also known as white earth. It is named after Gaoling Village, Jingdezhen, Jiangxi Province.

Source Lei gas barium sulfate ten uses


Barium sulfate is based on barite as the main raw material, through beneficiation, ore washing, crushing and other processes. Barium sulfate has a hardness of 3~3.5 (Mohs) and a specific gravity of 4.3~4.7. It has the characteristics of high specific gravity, low hardness and brittleness. Barite is almost insoluble in water, ethanol and acid, soluble in hot concentrated sulfuric acid. With the development of some high-performance barium sulfate products, the application field of barium sulfate is constantly expanding.