The whole earth is divided by 90 latitude lines ranging zero degree to 90 ... as the mid point of earth as geographical experts believes. The virtual ongoing longitude line is assessed as a ‘meridian’ ...

GPS coordinates are most commonly expressed as latitude and longitude. This system divides the earth into latitude lines, ...

Lines of longitude run from the top of the Earth to the bottom, and divide up the Earth a bit like the segments of an orange. The line going through London, called Greenwich Meridian, is the ...