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Earth science
Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.
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Earth science > Mapping science 
two-step enlargement
Earth science; Mapping science
Projecting and printing a small image, then copying and projecting it again to the required size. This is often necessary when the size of the copy or the limitations of the ...
edition
Earth science; Mapping science
A particular issue of a map, chart, or atlas different in time of issue and in some details from other issues.
ephemeris transit
Earth science; Mapping science
The passage of a celestial body or point across the ephemeris meridian.
preliminary elevation
Earth science; Mapping science
An elevation arrived at in the office after the index, level, rod and temperature corrections have been applied to the observed differences of elevation and new elevations have ...
hydrostatic equation
Earth science; Mapping science
The equation expressing the rate of change of pressure p with geometric height (or depth) h as a function of density ρ and gravity acceleration g, when all Coriolis forces, ...
isostatic equilibrium
Earth science; Mapping science
That condition which exists, in the Earth's crust, when the downward pressure of masses above the geoid is exactly balanced by the upward pressure of masses below the geoid, so ...
dividing engine
Earth science; Mapping science
A machine, also called a ruling engine, for precisely drawing or incising equally spaced lines in material. It is used to produce diffraction gratings, the graduated circles on ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)