Summer solstice
Today is the summer solstice, the sun is scorching hot, I wish everyone a cool summer.
The summer solstice is the 10th solar term of the twenty-four solar terms. Dou refers to noon; the sun's ecliptic longitude is 90°; On the summer solstice, the position of the sun directly hitting the ground reaches the northernmost point of the year, almost directly hitting the Tropic of Cancer. At this time, the daylight hours in the northern hemisphere are the longest in the year. The summer solstice is also the day of the year when the sun is at its highest at noon for the Tropic of Cancer and its north.
The summer solstice is the turning point when the sun travels north. After the summer solstice, the point of direct sunlight begins to move southward from the Tropic of Cancer, and the days in the northern hemisphere begin to gradually shorten. For the regions north of the Tropic of Cancer in China, after the summer solstice, the height of the sun at noon begins to decrease day by day; for the regions south of the Tropic of Cancer in China, the height of the sun at noon returns south after the summer solstice, and the sun begins to decrease day by day after the sun shines again. .
High temperature, high humidity, and occasional thunderstorms are the characteristics of the weather after the summer solstice. The summer solstice is at the position of mid-summer, that is, the position of noon, and noon belongs to the sun; although the yang is relatively strong and the day is the longest, it is not necessarily the hottest day of the year, so the heat close to the surface is still accumulating at that time. Not reaching the maximum. The summer solstice is not only one of the twenty-four solar terms, but also one of the "Four Seasons and Eight Festivals" among Chinese folk in ancient times. Since ancient times, Chinese folk have the custom of worshiping gods and ancestors on the summer solstice. In addition, after the summer solstice, Chinese people generally eat Qingbu cold soup, herbal tea, and sour plum soup to escape the heat.
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