In ancient times, people used it to predict weather changes.

According to the principle of yin and yang and five elements, the ancients divided everything in the world into two States of yin and yang and five forms of gold, wood, water, fire and earth.

Changing the law to forecast the weather reflects our ancestors' initial desire to understand the world and things. Weather phenomena such as wind, rain, snow, clouds, rainbow and thunder have appeared on the Oracle Bone Inscriptions unearthed in China, and divination has also been used to predict the sky.

According to Qi data, as early as Shang Dynasty, people realized the influence of weather on agricultural production and daily life.

24 solar terms and agricultural proverbs

Twenty-four solar terms are calendars formulated by ancient sages in China to guide farming, which were basically formed in the Spring and Autumn Period and the Warring States Period. According to the position of the sun on the ecliptic. In the Han Dynasty's Huai Nan Zi Tian Zi Xun

Twenty-four solar terms with the same modern name have appeared. Twenty-four solar terms can reflect the changes of seasons, guide agricultural activities, and affect the food, clothing, housing and transportation of thousands of families. Later generations summed up the familiar 24 solar terms.

According to the 24 solar terms and production practice, later generations summed up more agricultural proverbs, such as "Before and after Tomb-Sweeping Day, we planted melons and beans", "It's windy and hot in summer, and it's sunny on Chongyang in winter", "The autumn equinox is early, the first frost is late, and it's just the right time to plant wheat in cold dew".

Wait a minute.

Observe clouds and winds to tell the weather.

Lv Buwei's Lv Chunqiu divides clouds into four types: mountain clouds, water clouds, dry clouds and rain clouds.

Simple classification of clouds representing different weather. The ancients also summed up a series of weather and meteorological proverbs according to the thickness and color of clouds, such as "there are castle clouds in the sky and thunderstorms on the ground", and they can also predict the weather according to the wind.

"East wind sends wet west wind sends dry, south wind blows warm and north wind sends cold", which shows that different winds will bring different weather, cold, warm, dry and wet.

Forecast the weather according to animals

The sensory system of animals is quite acute, and the ancients have learned to predict the weather according to the behavior of animals. In the morning, there are water drops on the spider's web, which means the weather is fine. This is because the temperature is low in the sunny morning, which makes the water vapor in the air condense into small drops and hang on the spider web. Swallows flying low, frogs chirping, ants moving, and earthworms coming out of holes are all precursors to rain.