What does the vernal equinox mean?

Seasonal sharing and day and night sharing. "Equinox" has two meanings. One is "season sharing". Traditionally, spring is between beginning of spring and Changchun, and the vernal equinox is in the middle of the two solar terms, which just divides spring equally. Another meaning is "equal day and night". At the vernal equinox, the sun shines directly on the equator, and the length of day and night is equal, each being 12 hour.

The climate of the vernal equinox is characterized by warm and sunny weather. At this time, China folks have the custom of flying kites, eating spring vegetables and laying eggs.

Phenological phenomena of solar terms in vernal equinox

The mysterious bird arrived: Ye Yan, the mysterious bird, coaxed and said, "The vernal equinox comes and the autumn equinox goes."

Thunder is sound: yin and yang are thin, which is thunder. At this time, the four yang gradually flourished, and there was still yin, so the sound was fine; Yes, the rhyme club said, "It is difficult to exhale like gas." Shu Zhu said: "hair, still out."

Electricity: electricity, sunlight; The four yang are flourishing, and when the qi is exhausted, the light is born. Therefore, "Li Jie" said: "All voices are positive; It's just yang. " "Yi" said: "Thunder and lightning are combined into one chapter. "The Biography of the Ram also said," Electricity, Lei Guang. "Yes, Xu said," Thunder is the sun and electricity is the yin. "Not really. It is obvious that there is electricity without thunder in midsummer.

Refer to the above? Baidu encyclopedia-vernal equinox