Chiseled info

Map making  Mapmaking involves accurate measurement. Today almost every inch of Earth's land area has been mapped some areas in greater detail than others.  Occens and seafloors has been extensively charted, too , though generally in less detail than the land . Maps must also be continuously devised to reflect changes in boundaries , place names , humans structure and natural phenomena.         Surveying in the broad sense is the science of determining the exact size , shape and location of a given land or undersea area . Some surveying still is done on the ground using mathematical methods such as triangulation and traditional instruments nsuch as the odolites and tellurometers or their electronic equivalents.                 Mapping coasts and charting the open seas involves another set of measuring techniques that use some of the same mathematical methods as alnd based surveying . Data gathering also relies on instruments that have enabled navigator and cartographers