When there is no sun, how to distinguish between southeast and northwest

It's rare for the sun to show the way.

At most, they used a compass, and originally humans used azimuth circles.

There are many ways to do this. Here's how:

1. The simplest - the sun rises in the east and sets in the west.

2. Look at the density of the canopy - the dense one is the south, and the sparse one is the north.

3. Looking at the rocks, the moss-covered area is the north side, and the dry and bare side is the south side.

4. Look at the house building, if the road on the street is correct. Then the balcony bedrooms of the house are facing south, and the other side is north. This is also known as "sitting north and facing south".

5. Put a long strip like a match on the analog watch, so that the shadow cast by the sun coincides with the hour hand, and the angle between the 12 o'clock scale is the north in the middle, and the south corresponds to the other side.

6. You can use the compass to identify the direction.

1.Houses generally open to the south;

2.Temples are also usually doored to the south, especially the main hall in the temple complex;

3.The south-facing side of the tree is usually leafy, brightly colored and smooth-barked, while the north-facing side is the opposite. At the same time, the trunks of the trees on the north-facing side can be muffled and moss-free;

4.The ant's nest under the trees and near the shrubs is always on the south side of the trees and shrubs;

5.Protruding features, such as walls, ridges, stones, etc., have a moist base on the north-facing side and may grow bryophytes;

6.Recessed features, such as rivers, ponds, pits, etc., have the same condition on the north-facing side as convex features;

7.The place where the snow melts must be facing south;

8.With the compass, when the magnetic needle of the compass is stationary, the direction pointed at its n end is north;

9.At night, the Southern Cross is made up of four brighter stars, shaped like a ten, in the area south of 23°30' north latitude. At the lower right of the Southern Cross, it extends downwards about four and a half times the length of the two stars along the line of the two stars, which is due south;

10.Observe the tree's growth rings, with the sparse side facing south and the densely grained side facing north;

11.By observing the North Star, which is located due north in the sky.

<> in addition to the compass there are the following things to discern the direction: growth rings, bamboo, Southern Cross.

1. Growth rings: The denser end of the growth ring is the north, and the opposite is the south.

2。Bamboo: The greenish side of the bamboo body is facing south, and the greener side is facing north.

3。Southern Doji: In the area south of 23°30 north latitude, the Southern Doji is sometimes visible at night, consisting of four brighter stars, similar to the character "Bird Liquid Ten", in the lower right of which is four and a half times the length of the two stars (no star in the year) is the direction of due south.

There are several ways to identify directions:

1. Observe the sun: the sun rises in the east and sets in the west, and you can see a general direction by observing the sunrise and sunset.

2. Observe the branches and leaves of the tree: the south side is lush, the north side is sparse or the ant burrow is observed, and the hole entrance faces south.

3. Immediate effect: erect a pole vertically on the ground, with the shadow pointing northwest in the morning and northeast in the afternoon. In the absence of equipment such as geomorphological maps and compasses, it is necessary to learn to use some characteristics of nature to determine the direction, one is to use tools, and the other is to use natural features.

4. Observe the growth rings of trees: the growth rings are wide facing south, the dense ones are facing north, the south grows faster than the north, and the annual ring interval is also wider.

5. Direction finding of the watch: "The hour is half a pair of the sun, and 12 refers to the north", which can be quickly identified between 9 a.m. and 4 p.m. The watch distinguishes, divides the time by 2, and aligns the obtained quotient with the sun, and the direction pointed by 12 on ** is north.

6. Observe the North Star: At night, under the dark moon and bright night sky, we will always find the Big Dipper constellation shaped like a spoon, and there is a bright star at seven times the distance at the end of the spoon, which is the North Star, which is due north directly below, clockwise is east, south and west.

7. Observe the ant's burrow: Most of the cave entrances are facing south.

8. Observe the rocks: the mossy side is the north side, and the dry and bare side is the south side.

1. If the tree does not grow very densely, it is generally possible to distinguish the north and south from the trunk: the smooth side is south, and the other side is north. It is determined by the direction in which the leaves grow, and the direction of the leaves is generally south.

2. According to the identification of tree rings, the side with a wider distance between the growth rings is the south where the sun is abundant and can make the trees grow well.

3. It can also be distinguished by the moss of stones or tree roots, the moss likes to grow in a humid place, that is, the sunny place, and its reverse is the sunny south. If the trees are thick, the anthill hole is usually facing south.