All over the world, the year is divided into four seasons: spring, summer, fall and winter. That is a very rough way of dividing the year, because each season has 90 days, which is a very long period of time, and it is not possible to accurately represent the changes in the weather. For example, early spring is very cold, and the end of pounding is very warm. China's ancient laborers and astronomical staff, long-term observation of the natural world of climate issues, integration of agriculture, animal husbandry, fisheries production, the year is divided into twenty-four seasons, that is, twenty-four seasons, can be more accurately expressed the transformation of the weather.
What do we mean by the 24 Solar Terms?
The twenty-four solar terms are a filler lunar calendar signed in ancient times for specific guidance on agricultural work, and are: the spring equinox, rain, hibernation, spring, Qingming Festival, spring equinox, summer heat, Xiaoman, Mangzao, Xiaozhu, Xiaosu, Xiaoshu, Cold Dew, Dashu, Cold Dew, Riku, Winter Solstice, Frost, Frostfall, Xiaochun, Snow, Winter Solstice, Xiaochun, Little Cold.
The twenty-four solar terms began in the Weihe River Valley, the crystallization of the accumulation of long-lasting work experience and cleverness of ancient laborers. Four thousand years to have the Xia Dynasty, ancient people based on the observation of the length of the sun and shadow to know the four seasons of the spring, autumn, summer, winter solstice, and understand that the spring, autumn is the day and night evenly divided; small summer this day the most big white sky, the shortest night; winter solstice this day the most night, the shortest big white sky. At that time, people only saw the appearance and could not understand the reason for the change of seasons. Hundreds of years later, during the Zhou Dynasty, people knew about the four seasons: the spring equinox, the summer heat, the cold dew, and the frost. Until more than two thousand years ago, the Han Dynasty, the year is divided into twenty-four seasons, but also to find the way to calculate the seasons, has been widely spread to the present.
So, how many days are there between the 24 solar terms?
Each of the twenty-four solar terms is spaced about a month and a half apart, broken down into twelve months, with two solar terms in each month. In the twenty-four seasons, & ldquo; section & rdquo; refers to a phase of the year, is a period of time to indicate; and & ldquo; gas & rdquo; refers to the qi, is a brief description of the weather changes. It is the ancient people based on the unique qihou or physical phenomena within each segment, agricultural activities set the name. The two words together refers to the weather changes in a certain part of the year. Spring equinox, hibernation, Qingming Festival, small summer, mango, small summer, cold dew, cold dew, winter solstice, frost, snow and small cold and other 12 festivals; the second of the month for the & ldquo; Kidney gas & rdquo;; that is: rain, spring, spring, spring equinox, small full, small summer, small summer, summer, summer, fall, frost, cold, winter solstice festival and small cold and other 12 festivals. & ldquo; Festival & rdquo; and & ldquo; Kidney gas & rdquo; alternation occurs, each after half a month, now we have long been & ldquo; Festival & rdquo; and & ldquo; Kidney gas & rdquo; commonly known as & ldquo; Festival & rdquo; that is, twenty-four seasons.
It is often said that there are twenty-four seasons in a year, and every fifteen days is a season. It is more roughly called. Why don't you do some math: 24x15=360, which is obviously five days away from 365 days.
Precisely, the number of hours between the two seasons is not an integer amount. Some of them are a little more than twelve bells for fourteen days, which is fifteen days; some are a little more than sixteen bells for fifteen days, which is sixteen days. As I said before, there was a small cold festival at zero hour and forty-four minutes on the sixth day of the first month of the second year of the second year of the second year of the second year of the seventh year of the seventh year; and at eighteen minutes and four minutes on the twentieth day of the first month of the first year of the second year of the second year of the second year of the third year of the third year of the third year. Generally measured to the points. 2 festivals in the middle, the distance is fourteen days a little more than seventeen bells.
The rotation of the Earth around the Sun is regular, and the twenty-four points on the rotation track are all equidistant from each other by 15 points, so why is there sometimes an interval of fifteen days between the two seasons and sometimes an interval of sixteen days
