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Mapping science

The systemic study of the processes and designs involved with map making.

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Mapping science


Earth science; Mapping science

Relating to the warmest region of the Temperate Zones that border on the Torrid Zone.

Prime meridian

Earth science; Mapping science

The line of longitude that passes through the town of Greenwich, England, and that measures 0 degree. It is the line from which other longitude lines are measured.


Earth science; Mapping science

An alidade (archaic forms include alhidade, alhidad, alidad) or a turning board is a device that allows one to sight a distant object and use the line of sight to perform a task. This task can be, ...

Circular mil

Earth science; Mapping science

The area of a circle having a diameter of 0.001 inch. This is approximately equal to 7.85 x 10 -7 square inch.

Binary number system

Earth science; Mapping science

A system of representing numbers as a power series in the base 2, using only the digits 0 and 1 as coefficients; the coefficients are written down in order of descending powers of 2. Neither the ...


Earth science; Mapping science

That intensely bright portion of the Sun which is visible to the naked eye.

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