Characteristics and customs of solar terms in vernal equinox

The characteristics of vernal equinox solar terms are: 1, equal day and night, equal spring. 2. Spring is dominant. Vernal equinox and solar terms custom: 1, laying eggs. 2. Sacrifice to spring. 3. eat spring vegetables.

The "vernal equinox" has two meanings: one is that "day and night are equal". On the vernal equinox, the sun shines directly on the equator, which is almost equal to the length of day and night in the world, that is, the time of day and night is equal, which is 12 hour. At this time, after half a year of darkness, the North Pole saw the sunshine for the first time on this day, and the corresponding South Pole will also bid farewell to the sunshine on this day. If the period from the beginning of spring to the long summer is regarded as spring, then the vernal equinox is the midpoint of spring, which just divides spring equally. It is exactly ninety days from beginning of spring to Changchun, and the vernal equinox is divided into two, hence the name vernal equinox. The vernal equinox is the midpoint of 90 days in spring. On this day, the sun shines directly at the equator of the earth, and the world is almost as long as day and night. Since then, the direct point of the sun has continued to move northward, so the vernal equinox is also called "rising equinox", and in ancient times it was also called "Japan-China", "day and night equinox" and "mid-spring moon". Since then, the days have been longer than the nights in all parts of the northern hemisphere, but the opposite is true in the southern hemisphere. In terms of climate, it also has obvious characteristics. In addition to the Qinghai-Tibet Plateau, Northeast China, Northwest China and North China, China has entered a beautiful spring. The significance of the vernal equinox, first, refers to the equal division of day and night, each of which is 12 hours; Second, in ancient times, it was spring from beginning of spring to long summer, and the vernal equinox happened to be in the three months of spring, and spring was equally divided.