What does the twenty-four solar terms mean?

In ancient times, the period from the winter solstice to the summer solstice (about 365.25 days), that is, the year of return, was usually divided into 24 segments (each segment was about 15: 05), and each segment started from a solar term, which was: beginning of spring, rain, fright, vernal equinox, Qingming, Grain Rain, Changxia, Xiaoman and Qingming. Winter solstice, slight cold, severe cold.

Beginning of spring: When the bucket handle of the Big Dipper points due east and north, it is beginning of spring, which is the first of the 24 solar terms, corresponding to the twelfth equinox of the moon, and beginning of spring is the first in a year. It means to begin to enter the spring, "yang and thorns, everything is spring." In early spring, everything is full of vitality, and the four seasons begin from now on. ?

Rain: At this time, the spring breeze blows all over, the ice and snow melt, the air is moist, and the rain is increasing, so it is called rain.

Scare: This solar term refers to the fact that after beginning of spring, the climate gets warmer, the spring thunder starts to sound, and all kinds of hibernating animals that are dormant in the soil will wake up and start to move, so it is called a scare. During this period, the eggs laid by overwintering insects will also begin to hatch.

Vernal equinox: The sun is above the equator at the vernal equinox. This is the 90-day vernal equinox of spring. On this day, the northern and southern hemispheres are equal in day and night, so it is called the vernal equinox.

Qingming: At this time, the climate is fresh and warm, everything "spits out the old and absorbs the new", flowers and trees sprout new branches, everything begins to grow, and the earth presents a beautiful scene of spring.

Grain rain: it means that rain gives birth to grains. Because rain nourishes the earth and grains can grow, Grain Rain is "rain gives birth to hundreds of grains".

Changxia: This is the beginning of summer. Since then, everything has grown vigorously.

Xiaoman: Xiaoman reflects the climate characteristics of heavy rainfall, and Xiaoman is full of rivers. ?

Ear seed: homophonic "busy planting" Before and after ear planting, the rainfall in the middle and lower reaches of the Yangtze River in Central China increased, and the temperature rose, entering the rainy season. The air is very humid, the weather is extremely sultry, and all kinds of electrical appliances and clothes are prone to mildew, so it is also called "mildew rain" in the middle and lower reaches of the Yangtze River in China. ?

Summer Solstice: When the sun is at the "Summer Solstice Point" at 90 degrees of the Yellow Meridian, the sun is almost directly on the Tropic of Cancer, and the sun is the highest in the northern hemisphere at noon. ?

Xiaoshu: It's already very hot, but it's not the hottest time yet, so it's called Xiaoshu.

Great summer heat: Great summer heat is the hottest solar term in a year. Before and after the next day's duty, high temperature weather of 40℃ often appeared in many places in the Yangtze River Basin.

Beginning of autumn: From this day on, autumn began, with a crisp autumn and a clear moon. Heat: At this time, the heat has come to an end. Millennium: The weather turns cold and the water vapor on the ground condenses.

Autumnal equinox: The autumnal equinox and the vernal equinox are the same. The sun shines almost directly on the equator, and day and night are almost equal.

Cold dew: After the white dew, the weather turned cold and dew began to appear. When it comes to cold dew, the temperature will be lower if there is more dew. ?

First frost: it's cold and frosty, so it's called first frost.

Beginning of winter: The beginning of winter. Winter, as the end, means that after a year of field work, crops will be harvested. ?

Xiaoxue: The temperature dropped and it began to snow, but it was not the season of heavy snow, so it was called Xiaoxue. ?

Heavy snow: before and after heavy snow, there is gradually snow; It's already the severe winter of "thousands of miles frozen, Wan Li snowing" in the north.

Solstice of winter: On the solstice of winter, the sun shines almost directly on the tropic of Capricorn, and the northern hemisphere has the shortest day and the longest night, and it begins to enter several cold days. ?

Slight cold: After slight cold, it begins to enter the cold season. Cold air is cold for a long time, and slight cold means that the weather is cold but not extreme.

Great cold: Great cold refers to extremely cold weather.