How to draw the autumnal equinox mind map?

The steps of the autumnal equinox mind map are as follows:

1. Draw a circle in the center and write the theme "vernal equinox" at the center. Then draw the first branch: the meaning of autumnal equinox, the calculation of autumnal equinox, and the traditional customs of autumnal equinox. Then draw the second branch: the meaning of autumnal equinox includes equal division of day and night, climate characteristics, phenology and so on. The autumnal equinox can be calculated by date or time.

2. Draw the third branch: the equinox of day and night, which means that the length of day and night is equal, generally about 12 hours. The calculation of autumnal equinox can be based on date or time. If calculated by date, the autumnal equinox is the day when day and night are equally divided; If calculated by time, the autumnal equinox is the moment when day and night are equally divided.

3. In the traditional custom of the autumnal equinox, you can enjoy the natural scenery by enjoying Qiu Lai and the delicious food by eating autumn vegetables. It is an interesting traditional game to erect eggs. Then draw the fourth branch: the equinox is divided into days and nights, which has great influence on people's life and health, such as sleep quality and emotional state.

4. The calculation of the autumnal equinox can help people arrange their work and life better, such as arranging their time reasonably and improving their efficiency. The traditional customs of the autumnal equinox can help people better understand and feel the traditional culture of China and enhance their cultural self-confidence.

5. Add corresponding pictures or icons for each branch to make the mind map look more intuitive and vivid. For example, the day-night bisection chart can be a day-night comparison chart, and the autumn vegetable icon can be a vegetable shape.

The significance of autumnal equinox

1, the day and night are equally divided, and the autumnal equinox is a day with equal time between day and night in a year, that is, the length of day and night is equal. On the day of the autumnal equinox, the height angle of the sun is 90 degrees, and the angle between the rotation axis of the earth and the orbit of revolution is 90 degrees, which means that on the day of the autumnal equinox, the sun's direct point to the earth is located on the tropic of cancer, and the sun's rays will directly hit the equator, resulting in equal division of day and night.

2, seasonal division, the autumnal equinox is the dividing line between autumn and winter, but also the dividing line between warm season and cold season. In the northern hemisphere, the autumnal equinox usually marks the beginning of autumn. After the autumnal equinox, the temperature gradually decreased and the weather gradually turned cold. At the same time, the autumnal equinox also marks the transition from summer to winter, which means that winter is about to begin.

3. Agricultural significance. The autumnal equinox is of great significance to agricultural production. In autumn, the temperature gradually decreases and the weather gradually dries, which is beneficial to the growth and maturity of crops. Therefore, in the autumn equinox, farmers usually strengthen field management to ensure that crops get enough water and nutrients to promote their growth and maturity.

4. Cultural significance. The autumnal equinox is also of great significance in China culture. It is one of the traditional 24 solar terms in China and an important part of traditional culture in China. In the autumn equinox, people usually hold traditional activities such as offering sacrifices to the moon, enjoying autumn and eating autumn vegetables. These activities not only help to celebrate the beginning of the harvest season, but also show people's awe and gratitude for nature.