What does the third phase of Xiaoxue Solar Term mean?

The three phases of the light snow solar term mean: when the rainbow disappears; Second, the weather is rising and the atmosphere is falling; Third, the weather was blocked and turned into winter.

So what exactly does this light snow mean? Let me reveal this secret to you:

After a while, Hirozo disappeared.

The "rainbow" here is the rainbow we usually see after the rain. The rainbow was hidden and disappeared. This phenomenon is related to physics.

Rainbow is formed by the scattering and reflection of sunlight on spherical water droplets in the air. So the warmer the weather, the more water droplets there are in the air, and the greater the chance of forming a rainbow. In the light snow season, the temperature drops suddenly, and most of the water vapor in the air condenses. At this time, there will be no rainbow. Therefore, the hidden rainbow means that the rainbow is hidden and cannot be seen in winter.

Second, the weather rises and the atmosphere drops.

This is one of the most difficult phenology to understand, because in the traditional concept of the ancients, "weather" is yang and "earth gas" is yin. Yang is warm when it comes from people, and Yin is cold when it comes from hell. So from the point of view of the ancients, this sentence means that hot air rises and cold air falls, that is, the weather becomes cold in the light snow season.

People today can't understand this sentence from the perspective of the ancients. From the perspective of meteorology, we can understand "Yin Qi" and "Yang Qi" as airflow. "Yin Qi" is the downward airflow near the ground, and "Yang Qi" is the upward airflow in the air. This phenomenon describes that the two air flows are independent of each other and move in opposite directions.

The reason for this phenomenon is that when cold air invades in winter, the temperature near the ground will drop very low, while the temperature in the upper atmosphere will drop less, so there may be an abnormal phenomenon of heating up and cooling down, which is called inversion in meteorology. When the temperature inversion occurs, the air is "top-heavy" and is in a stable state. The cold air near the ground continues to sink, and the relatively warm air in the air continues to rise. This is the reason why "the weather goes up and the atmosphere goes down".

The third phase was blocked from entering the winter.

With the arrival of the light snow solar term, everything in the world has entered a dormant state. The people also closed their doors and began to spend the winter, and the roads began to be blocked because of cold and snow. The first half of the sentence is easy to understand. Everything stops growing in winter, and small animals don't come out very much. The last reason is mainly the backwardness of ancient travel tools and the lack of resources.

In ancient times, civilians traveled mainly on foot. Rich people can ride horses and donkeys, and rich people have carriages. In addition, there was no asphalt and cement as paving materials in ancient times, so it was very difficult to walk or ride a horse after the ground was covered with snow, so no one would travel far unless necessary, so the road was covered with snow, just like being blocked.

Although you can't leave the city, why can't you leave home when others don't go near you? This is because of the lack of ancient materials and advanced heating methods like ours. Rich portals can use charcoal fire to keep warm, and those who have no money can only burn firewood occasionally, not every day. After all, it is dangerous to seal roads with snow and cut firewood. Therefore, ancient people can only close the doors and windows to keep warm through the cold winter. So there is this "blocking into winter".

Second, the origin of Xiaoxue Sanhou:

In ancient times, agriculture was valued, but without advanced technology, people had to rely on the sky to eat, so there were 24 solar terms to facilitate people's farming activities. However, the difference between each of the 24 solar terms is half a month, and it has been felt that the time interval is too long and not accurate enough when applied to agriculture, and it needs to be subdivided. Under this background, Yi Zhou Shu Shi Xun appeared in the Western Han Dynasty, in which each solar term was divided into three periods, totaling 72 periods.

Third, the custom of light snow season:

1, bacon and sausage

"Winter wax and wind pickling, storage cold". As soon as the light snow arrived, the temperature plummeted and the weather became very dry, which was a good time to process bacon. So many businesses began to buy sausages, and some families would make them themselves.

When I was a child, every time it snowed, my mother would buy a piece of fat and thin meat to make sausages. He also asked me why I didn't buy sausages directly and why I bought meat myself. My mother said that she was afraid that cooked meat would be mixed with bad meat, so she was more at ease to buy her own meat. Bought sausages will be hung in a ventilated place on the balcony and can be eaten after the Spring Festival. It's just that now my family needs less salt and less fat for high blood pressure, so there is less delicious food every year.

2. eat a gas bar

Some places in the south also have the custom of eating Ciba in October of the lunar calendar. Ciba is a kind of food made by steaming and mashing glutinous rice. It is popular food in some areas of southern China, and it is also a traditional festival sacrifice in southern areas. At first, farmers used it to worship the cow god.

3. Drink soup.

Before and after the light snow, Tujia people started the annual folk activity of "killing pigs to welcome the new year", which added a warm atmosphere to the cold winter. Eating "planing soup" is the custom of Tujia nationality. In the folk activity of "killing pigs in the New Year", the delicious food cooked with the best fresh pork and hot air is called "planing soup".