Traditional Culture Encyclopedia - The 24 Solar Terms - How are the 24 solar terms determined?
How are the 24 solar terms determined?
Yiyi and Xiaoke met a new friend-the vernal equinox elf.
The vernal equinox elf introduced the brothers and sisters of the solar term family to Hulu, so Xiaoke and Yiyi not only made more friends, but also learned how the 24 solar terms came about. Children, if you want to make friends with the solar term elves, come and watch the animated story!
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Why should the vernal equinox erect eggs?
Legend has it that the vernal equinox is the easiest day to lay eggs. According to historical records, the tradition of dividing eggs in spring originated 4000 years ago to celebrate the arrival of spring.
The spring equinox vertical egg bag contains certain scientific logic and can also be regarded as a summary of the wisdom of the ancients. If you are patient, you can stand the egg upright.
What is the principle of vertical eggs at vernal equinox?
The surface of an egg is actually uneven, but as long as there are any three supporting points, a supporting surface can be formed, and as long as the center of gravity of the egg falls on this supporting surface, the egg can stand up.
However, it is difficult to find the center of gravity because the surface of the egg is curved and the supporting surface is relatively small. But one thing will not change: the higher the center of gravity, the more difficult it is to balance; The lower the center of gravity, the easier it is to stand upright.
On the vernal equinox, the northern and southern hemispheres are divided equally day and night. The earth's axis is inclined at 66.5 degrees, which is in a relatively balanced state with the earth's orbital plane around the sun, and the earth's magnetic field is also relatively balanced, which is very beneficial to vertical eggs.
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