Mapping science

Mapping science

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

Industry: Earth science

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Mapping science

Additive colour mixture

Earth science; Mapping science

A combination of light of different chromaticities. i.e., a single colour produced by mixing lights of different colors.

Cluster zoning

Earth science; Mapping science

Zoning whereby a specific density of residence or dwelling units is prescribed for an entire locale.

Chartlet

Earth science; Mapping science

A small chart, like those annexed to Notices to Mariners.

An atomic clock in which the characteristic frequency of 9 192 631 770 cycles per second of the cesium atom is used to determine the basic time interval for the clock. Because the second is defined ...

Binocular comparator

Earth science; Mapping science

A measuring engine having a separate eyepiece for each eye but a common objective lens system. A binocular comparator allows both eyes to see the object (e.g., a photograph) under study, but does ...

Additive colour process

Earth science; Mapping science

A method for creating all colours by adding various intensities of lights of the three primary colours (red, green, blue). The lights are produced by three projectors each provided with a philtre ...

Comparison viewer

Earth science; Mapping science

An optical device permitting two separate pictures to be viewed separately or together in any of a variety of fashions, for comparison. The principal applications are to the comparison or maps or ...