The position in the north is the most respected, followed by the position facing west and east, and the position facing west again. We often see such a ground in Beijing opera: the monarch faces south. After sitting in the dragon case with their backs to the north, the ministers appeared one after another, facing the north in a row, saluting the monarch from a distance, and then Wendong Wuxi stood on both sides.
It is the second ocean in the world, with an original area of 822 1.7 million square kilometers. After the establishment of the Antarctic Ocean, the area was adjusted to 76.762 million square kilometers, with an average depth of 3,627 meters. The deepest Puerto Rico trench is 8605 meters deep. It is divided into the North Atlantic and the South Atlantic from the north and south of the equator. It connects the Arctic Ocean and the Antarctic Ocean at 60 degrees south latitude.
Extended data:
Anywhere on the earth, as long as you have a watch, a bamboo pole and a tape measure, you can know the local latitude and longitude. However, this form must be checked with national standards on time.
1. Two days first: For example, in a certain place in China, the shortest pole shadow at noon is 13: 20, and the ratio of pole length to shadow length is 1. Then we can know that this place is 45 north latitude (TG α =1) and east longitude 100.
2. The longitude calculation algorithm from two days to one day is that the constant latitude is α+23.5 in the winter solstice and α-23.5 in the summer solstice in the northern hemisphere, which can be added or subtracted on any day.
Baidu encyclopedia-south latitude