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Five Laws·Heavy snow

The leaden sky is drizzle, and there is a hint of winter.

The leaves are clear and the birds are singing, the hedges are sparse and the chrysanthemums are empty.

The clouds and smoke cover the wild water, and the reeds have not returned.

Heavy snow is approaching, and the winter plum blossoms are turning red.

Heavy snow

Lu You

Heavy snow has never been seen in the south of the Yangtze River, and this year it has only been severe.

It's like looking for each other through the curtains, and the forest branches are overwhelmed with desire.

The felt arm throws Lu and forgets to sleep at night, and the golden restraint immediately rises timidly in the morning.

In this life, I laugh at myself for being late for fame, and daydream about the Yellow River being completely frozen.

Today"Heavy Snow"，The 21st solar term among the twenty-four solar terms of the lunar calendar。Beginning of Winter、Xiaoxue、Heavy snow，Unknowingly, it’s the third solar term of winter，The winter solstice is next、Xiaohan、Big Cold，This solar term has ended。

Poetic solar terms are about the culture of time，Fully embodies the Chinese people’s concept of respecting bet365 bet365 games best slots sports betting livenature and pursuing harmony between man and nature。Days ago，"Twenty-Four Solar Terms" is officially included in the UNESCO Representative List of Intangible Cultural Heritage of Humanity。Careful people will notice，The twenty-four solar terms of the lunar calendar coincide with the rhythm of the Gregorian calendar。

On the calendar we see every day，There are often two calendar systems at the same time: one is the commonly used Gregorian calendar，Also known as the Gregorian calendar，One set is the lunar calendar。The first month of the lunar calendar always corresponds to the new moon，The fifteenth or sixteenth day of the lunar calendar always corresponds to the full moon。However，The traditional twenty-four solar terms have no fixed days in the lunar calendar，On the contrary, the days in the Gregorian calendar are relatively fixed，For example, the heavy snowfall every year always falls on the Gregorian calendarAround December 7th.

In fact，This is because，The traditional Chinese calendar is the lunar calendar，The twenty-four solar terms are the elements of the solar calendar。

There are three major types of calendars in the world: one is the solar calendar，Only consider the annual motion of the sun，It is caused by the Earth’s annual revolution around the sun，This is the Gregorian calendar currently used in the world，The length of a year is365.2422nd。The second is the lunar calendar，Only consider the periodic bet365 bet365 games best slots sports betting livemovement of the moon，Such a calendar is still used in the Islamic world today，The so-called Hijri calendar，The length of a year，A normal year is 354 days，Leap year is 355 days。The third is the yin and yang calendar，The traditional Chinese calendar is the lunar calendar。

The lunisolar calendar is the same as the lunar calendar，Determine a month based on the time it takes for the moon to wax and wane once，Also using the method of adding leap months，Making the average number of days per year close to the number of days in the whole year of the Gregorian calendar，To adjust the four seasons。The lunisolar calendar is a calendar that takes into account both the solar calendar and the lunar calendar，Fused with the Earth、Moon、The cycle of the sun。

AndThe "twenty-four solar terms" are what the ancients observed through the annual movement of the sun，Divide the annual motion trajectory of the sun into 24 equal parts，Each equal portion is a "solar term"。Therefore, the twenty-four solar terms are the solar calendar components of our traditional lunisolar calendar，The days in the Gregorian calendar are relatively fixed。The "Twenty-Four Solar Terms" guide traditional agricultural production and daily life，Is an important part of the traditional Chinese calendar system and related practical activities。In the international meteorological community，This time cognitive system is known as "China's fifth greatest invention"。