How do you tell time in the wild without clocks
What do you do in the field if you don't have a clock and want to know the time? According to the rotation of the earth and the revolution of the moon based on common sense, daytime
Time can be judged by the movement of the sun and the movement of the moon at night, but this is related to the season, latitude and longitude, so it is not very accurate.
If you are carrying a needle or compass, you can put a match in the center of the needle or compass and turn the needle or compass pointer to
In the direction of due north and due south, observe the direction indicated by the match stick shadow. If the match stick shadow points west (W), it is morning, if the match stick shadow points east (E), it is afternoon, and if the match stick shadow points north (N), it is noon. The time from 6:00 am to 6:00 PM can be determined according to the moving track of the match stick shadow. You can also make a simple sundial by yourself: use two pieces of cardboard and place them according to the remaining Angle of the local latitude. Draw a font from 1 to 24 clockwise on a piece of cardboard and insert the needle in the center of the font. When installing a sundial, the font should face north. In March to September can be arranged according to the upper method of the font, October to February, the needle should be inserted in the upper board and on the back in accordance with the counterclockwise direction of the font.
Night can use the moon to judge the time, the moon from east to west about 12 hours, an average of about 15 degrees per hour, can be combined
The phases of the moon and the position of the moon at that time. According to the movement of the stars measuring time, one of the most simple is from the north to bear quantity bucket bottom concave side beta star led an imaginary straight line, imagine the line represents the pointer of the clock, the north star location for the center of the carriage, can measure the time like to read 12 digital clock, this needs to be in the clear night sky at ordinary times when combining your watch time often observe the stars, Remembering the location is easy when you're using it.
