1) watch direction finding. "Hour and a half refers to the sun, 12 refers to the north". Generally, you can quickly identify the direction between 9 am and 4 pm. Aim at the sun half the time, 12 is north, for example, 14: 40 pm, and half is 7: 20 pm, so 65438. Or erect a stick in the center of the watch and turn the watch so that the shadow of the stick coincides with the hour hand. At this time, the bisector between 12 is the north.
It must be noted that when judging the direction, the watch should be flat; In the area between 20 and 30 degrees north latitude, it is not suitable for use around noon.
2) Sun shadow direction finding. A wooden stick is erected on the ground, and its shadow moves with the change of the position of the sun. These shadows are the shortest at noon, the connecting line of the stick end is a straight line, and the vertical line of the straight line is the north-south direction.
Draw a series of concentric circles on a piece of drawing paper of 50× 50cm, with the radius of concentric circles increasing by 1cm, and fix them horizontally on the flat plate, and vertically insert a thin steel needle or needle with a length of 12 ~ 15cm on the center of the circle. When the position of the sun changes, the endpoints of the shadow always intersect with concentric circles to mark these points, and then two straight lines are connected on the same circle to connect the points of these straight lines with the center of the circle. This line is the north-south line, and the direction of the arc top is north.
How to tell the direction when you get lost in the wild?
How to tell the direction when you get lost in the wild?
When you get lost in the wild and don't have a compass with you, you can tell the direction according to the following methods:
1. On the sunny side (i.e. facing south), a single tree is luxuriant in foliage, while on the shady side (i.e. facing north), the foliage is sparse.
2. In the dense forest, the south of the rock is dry, while the north of the rock is wet and covered with moss.
3. Peach trees and pine trees secrete gum mostly in the south.
4. Tree rings of stumps are sparse in the southern half and dense in the northern half.
The part of snow that is difficult to melt, such as ravines or rocks, is always in the north direction.
6. Ants' caves are mostly in the south of big trees, and the holes face south.
7. Some natural villages are generally concentrated on the south side of the mountain, and most of the gates face south. Generally, ancient temples, pagodas, ancestral halls and other buildings face south.
8. If you can see the stars in the sky at night, as long as you find the Big Dipper, you can find the bright Polaris along the extension line of the spoon handle, and the direction of Polaris is the true north direction.