How to distinguish between north and south

1, use a straight rod to determine the orientation.

In the wild, people can insert a straight rod (such as a long branch) into the ground to make it perpendicular to the ground. First, put a stone at the vertex A of the column shadow. After about 10 minutes, put a stone with the shadow vertex of the new benchmark as point B.

Connect the stones at A and B into a straight line, and the direction of this straight line is the east-west direction. The direction perpendicular to the AB line is the north-south direction, and the end facing the sun is the south.

2. Use the pointer table to determine the direction.

When the watch is placed horizontally, the position indicated by the hour hand (24-hour clock) is facing the sun, and the direction indicated by the scale at 12 on the dial is about the north.

3. Use Polaris to determine the direction.

There is no sun at night, which can be judged by Polaris. Find the easily recognizable Big Dipper (Ursa Major) or W Star (Hou Xian Constellation), and you can quickly find the North Star.

The Big Dipper is seven bright stars, shaped like a spoon. Connecting two stars at the spoon mouth and extending to the spoon-shaped opening about 5 times the distance of the connecting line is the Polaris. Hou Xian constellation consists of five bright stars, shaped like a "W" letter, extending away from the opening of the letter, which is about twice the width of the opening. This is the Polaris.

4, refers to the north (south) needle

How to use the compass needle: When using the compass needle, it must be placed horizontally and away from the following items to avoid confusion of the magnetic needle: the compass needle should be away from the barbed wire 10 meter, 55 meters away from the high-voltage line, 20 meters away from the car, and more than 10 meter away from the magnet such as the magnetic container.

5. Look at these leaves.

The side with lush leaves, thick branches and rich fruits is generally the south. There is a lot of resin oozing from the branches of pine and cypress, and the condensation is generally in the south.

People's Network-How to judge the direction of getting lost in the wild (self-help tips)

People's Network-Astronomy around us: You can't find the north when you get out of the subway? Astronomers know the direction like this.