What is the circle on the globe?
"Dad, what are the circles on the globe? "
" Oh, that's the latitude and longitude, the vertical is the longitude, and the horizontal is the latitude. "
" You see, the longitude divides the earth into 360 The 360 copies are all the same size, and each line passes through the north and south poles, and is divided into a line of 180 degrees east longitude, and a line of 180 degrees west longitude. "
" zero longitude line passes through a large building in London, England The house, so someone drew this meridian on the floor. I used to stand there with my feet on one side of the line, so I stood on the east and west hemispheres at the same time. "
" What about the latitude?"
" The latitude lines are perpendicular to the earth’s axis. They are parallel to each other. The equator is set at zero degrees, which is the largest circle in the middle. From the north of the equator to the north pole is 1 to 90 degrees north latitude, and from the south of the equator to the south pole is 1 to 90 degrees south Lines. The "
" latitude and longitude lines are useful. The latitude and longitude are like the streets and house numbers of a family. You can quickly find any place on the earth based on the latitude and longitude. "
" However, this latitude and longitude line is not the earth It is there, but it is drawn by people on the map."
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