Look at the ground, north, down, south, left, west, right and east, right?

It is correct to go up north and down south, left west and right east.

When the map is not marked with beacon and latitude and longitude net, it is correct to default to "up north and down south, left west and right east".

In life, only when you face the real north can you use upper north, lower south, left west and right east. The direction of discrimination is front, north, back, south, left, west, right and east.

The orientation and orientation of China map are generally consistent with other maps, that is, due north orientation (due north orientation above the map).

A map is a graph or image that selectively represents some phenomena of the earth (or other planets) on a plane or a sphere in a two-dimensional or multi-dimensional form and means according to certain laws. It has a strict mathematical foundation, symbol system and text annotation, and can scientifically reflect the distribution characteristics of natural and socio-economic phenomena and their relationships by using the principle of map synthesis.

At present, the definition of map is: a symbolic image model or a graphic mathematical model that reflects the objective reality with certain mathematical rules (that is, patterning), symbolization and abstraction.

In fact, according to certain mathematical laws, maps use map language to reflect natural and human phenomena on the earth (or other stars) on the plane, reflecting the spatial distribution, combination, connection, quantity and quality characteristics of various phenomena and their development and changes in time.

The universe is an infinite container. Although the universe is directional, there is no directional noun. Directional nouns on the earth are actually created by human beings subjectively and purposefully. So that human beings can identify and recognize the direction. It is a habit recognized by emperors, generals and ordinary people.

"Up north, down south, left west, right east" only applies to maps without marks and latitude and longitude nets. This is called general discrimination.

Reasons for going north, south, west and east:

1, human civilization mainly originated in the northern hemisphere, with Polaris as its orientation. When you are looking for the North Star with a map in your hand, it is easier to draw the north on the map for reference. Besides, we China people live in the northern hemisphere, but the ancients didn't think so. In their minds, China is the center of the world, and that's how China's "China" came from. Whether the sun they see during the day rises or sets in the west, it is always in the south of us. At night, they look at the stars and look up at the Big Dipper, a symbol of the emperor. In this way, "going north and going south" also echoes the living habits of ordinary people.

2, the direction of the emperor's seat has always been to sit north facing south, you should have heard the idiom that courtiers are in the south! The north is the emperor, high above; The south is a courtier, bowing to its knees.

3. In ancient China, the first-class civil servants and inferior businessmen engaged in politics in the north and economy in the south, and almost all emperors built their capitals in the north, so they were said to worship the north. And then naturally say you're wandering around.

4. The ancient buildings in China are used to lighting facing south. From the emperor to the people, the ancients stood at the door to identify the direction, with their heads facing north and south and their feet stretching far away. So I'm used to going north and south.

5. The map of the world was first introduced to Xu Guangqi by Italian missionary Matteo Ricci, and it is called the Great Global Geographic Map. At that time, the "Great General Geographic Map" was the general drawing method at that time.

Outdoor orientation identification method:

1, building identification:

If there are people living in your place, but you can't understand the local people at all, you can observe some buildings to make a clear direction: if there are temple ruins on the mountain, the gates of the temples are generally facing south, as are the independent houses in rural areas, and the Mongolian yurts face south. Even the ant caves on the mountain slopes generally face south, but mosques generally face west.

2, star identification:

Others said that it was night when I got lost. Without the sun, I can't see around clearly. I don't know what buildings there are. What should I do? At this time, you can go to the Big Dipper, which is almost known all over the world, but you may not be particularly clear about the method-you need to find the first or second star in the spoon mouth, and extend the connection from two to one four times, and you can see the North Star. If you find the North Star, you will naturally find the North. In addition, I have to say that there is no navigation invivo, and there is no grandfather Xian Weng in Antarctica, because the brightest star in Antarctica is 20 times darker than Polaris and looks useless to the naked eye.

3, stump identification:

Some people say that I am the first human being to set foot on a certain land, which is very unlucky. What should I do? You can find a stump and look at the tree rings. The ring is definitely not a standard concentric circle, but one side is wide and one side is narrow, and the wide side is the sunny side, which is the south of the northern hemisphere. If there is no stump, it can be seen from the bark that the bark in the north direction is rough and the branches are sparse. If there are fruit trees, you can see that the fruits in the south ripen first. What? Did you eat it all without seeing it clearly? Blame me?

4, stone appraisal:

Some Xiong Haizi may ask again, I am lost in the desert or snowfield, there are no trees around, the weather is bad, there is no sun during the day, and there are no stars at night. How can I break it? At this time, there is also a way. You can find a big stone and see which part of it is wet or covered with moss. In the northern hemisphere, the mossy side is the north. If there are snowdrifts around, the area facing north will melt more slowly. Friendly reminder, if you really get lost here, try to find some food and water first.

5. Watch identification:

Also, as long as you have a watch, you don't need to panic. If you are in the northern hemisphere (I'm afraid our communication intensity is not as strong as that in the southern hemisphere), then aim the hour hand of the watch at the sun, and then think that the hour hand and the twelve o'clock scale form an angle, and the bisector of this angle is the south.

6, straight stick identification:

Some people say that I am a poor tramp and I usually work hard. I don't have a watch, but I have a superior IQ and am incredibly handsome. What should I do? Lao Tzu said: the road leads to simplicity. A straight stick can also help you. Just stick the stick in the ground vertically, look at its shadow, make a mark on the shadow, then wait for 20 minutes, the shadow will definitely move, then make a second mark, connect the two mark points, then make a vertical line and draw a small cross. The second mark is East, and the top is North.

7, look at the snow to identify:

If there is snow in the valley, the first side of melting is the south and the other side is the north.