What does the vernal equinox mean? What to wear at the vernal equinox?

Guide: What does the vernal equinox mean? What to wear at the vernal equinox? In daily life, the 24 solar terms guide people's diet and clothing. What should I wear this vernal equinox? Will it be cold after the vernal equinox? Let's take a look with me next!

Equinox (one of the 24 solar terms)

The vernal equinox is the midpoint of 90 days in spring. One of the 24 solar terms, around March 20 of the Gregorian calendar every year, when the sun is located at 0 (vernal equinox) of the yellow meridian. On the vernal equinox, the sun shines directly at the equator of the earth, and the seasons in the northern and southern hemispheres are opposite. The northern hemisphere is the vernal equinox and the southern hemisphere is the autumnal equinox. The vernal equinox is a new year in Iran, Turkey, Afghanistan, Uzbekistan and other countries, with a history of 3,000 years.

It is worth noting that:

In the northern hemisphere, the days are getting longer and longer from the winter solstice, but from the vernal equinox, the days are longer than the nights. From the summer solstice, the days become shorter and shorter, but from the autumn equinox, the days are shorter than the nights.

Interesting folk customs

Vertical egg

Every spring equinox, tens of millions of people all over the world are doing "vertical egg" experiments. How this toy, called "China Customization", became a "world game" is still difficult to verify. However, the game is simple and interesting: choose a smooth and symmetrical fresh egg that has just been born for four or five days, gently stand it up and put it on the table. Although there are many losers, there are also many winners. The vernal equinox has become the best time for vertical egg games, so there is a saying that when the vernal equinox arrives, the eggs will be beautiful. The eggs that stand up are very beautiful. [5]

The mystery of vertical eggs

Why do eggs stand easily at the vernal equinox? Although there are many sayings, there are many scientific reasons. First of all, the vernal equinox is a day with the same length of day and night in the northern and southern hemispheres. The inclination of the earth's axis is 66.5 degrees, which is in a relatively balanced state with the earth's orbital plane around the sun, which is beneficial to vertical eggs. Secondly, the vernal equinox is in the middle of spring, which is lukewarm, colorful, comfortable, quick-thinking, agile and easy to succeed in laying eggs. More importantly, the surface of the egg is uneven and there are many protruding "hills". The height of the "mountain" is about 0.03 mm, and the distance between the peaks is between 0.5 and 0.8 mm. According to the principle that three points form a triangle and determine a plane, as long as the triangle formed by three "mountains" is found and the center of gravity of the egg passes through this triangle, the egg can stand upright. In addition, it is best to choose eggs 4 ~ 5 days after birth, because at this time, the yolk of the egg is slack, the yolk sinks, and the center of gravity of the egg drops, which is conducive to the erection of the egg.

What to wear at the vernal equinox?

Trench coat+shirt+jeans

Thin woolen cloth+thin sweater+thick * * *

Small suit+white shirt+cropped trousers