The sign tower of the Tropic of Cancer in Shantou City is located 2343 kilometers north of National Highway 206 in the western suburb of Shantou City. It was built in 1984 and completed in 1986. After more than ten years of supporting construction, it has become a patriotic education base and popular science tourist attraction in Shantou. North Standard Peeping Day: refers to the Tropic of Cancer sign tower located 5 kilometers north of Shantou University, built at the waist of Jilong Mountain, with a height of 13.6 meters and a bottom width of 30 meters. Support a globe with a diameter of 5 meters with a "north" bracket. Every summer solstice, when the sun shines directly on the tropic of cancer, you can see the sun shining on the ground from the small hole in the middle of the globe. After a few minutes, things changed. Since then, the sun has gradually moved south. Draw the invisible tropic of cancer as tangible on the ground. With one foot in the temperate zone and one foot in the subtropical zone, you can cross the Tropic of Cancer. There is also a Kuafu Pavilion for people to rest nearby. Standing on the top of the mountain, you can see Niutianyang in the west and the conical volcanic landform of Jilongshan in the east.
The Tropic of Cancer is located at the southeast end of Eurasia. Due to the influence of sea breeze, there is abundant precipitation, forming lush tropical monsoon forest and subtropical evergreen broad-leaved forest, which is completely opposite to the whole desert belt. Shantou Tropic of Cancer Sign Tower is located at the easternmost end of this special landscape, which is of great significance in environmental science research.
The site selection of the Tropic of Cancer sign tower in Shantou adheres to the following principles: ① the principle of learning; ② The principle of not occupying (occupying less) cultivated land; ③ The principle of convenient transportation; ④ The principle of echoing other tourist attractions; ⑤ Aesthetic principle; 6. Traditional customs and other principles. Architectural features of Shantou Tropic of Cancer Tower: Tiantan tower foundation, a huge earth model is placed on the "North"-shaped tower structure, and the center of the earth model has a pipeline for sunlight to penetrate, which is called "peephole" for observing the direct sunlight from summer to sun.
The latitude position of the sign tower of Shantou Tropic of Cancer was accurately measured as 23 26' 32.48 "n in A.D. 1990 65438+ 10/day, and the theoretical value of the Tropic of Cancer was 23 26' 26. 1 3" n.
In the east-west direction of the observation deck, a black slate belt was laid, indicating that this line is the Tropic of Cancer, and warm tropical plants are planted on both sides. When we set foot on this slate belt, we are between the north temperate zone and the tropical zone, and it seems that we can feel the rotation of the earth, and there is a mystery that spans the two zones. "Looking at the sun from the northern standard" is a true portrayal of the "summer solstice" view of the sun. Every summer solstice (noon on June 22), the sun watchers are very enthusiastic, competing to watch the annual spectacle of "standing on a pole without a shadow" and personally feel the alternating moment of spring and summer.
Many trees and flowers have been planted around the Tropic of Cancer sign tower, and mountaineering roads have been paved. There are Kuafu Pavilion and Denglin Pavilion (named after the myth of Shan Hai Jing) on the top of the mountain, and many poems of mountain climbers are engraved on the stone wall beside the road. When you board the pavilion, you can see the wide water surface of Niu Tianyang in the west and Jilong Mountain in the east.
The names of "Kuafu Pavilion" and "Deng Pavilion" are all related to the sun. There is a touching myth in the ancient book Shan Hai Jing: Kuafu means man. In ancient times, when he encountered drought, he wanted to conquer and chase the sun. He was sweating and thirsty. He drank all the Wei water in the Yellow River and still wanted to drink the water from the sea. He died of thirst on the way before he arrived. Kuafu discarded the rattan and planted it underground, which turned into a dense Deng Lin. Deng Lin is Tao Lin. Shantou Tropic of Cancer Sign Tower is located in our coastal city, and the scenery such as "Kuafu Pavilion" is very consistent with the myth story of Kuafu chasing the sun in Shan Hai Jing.