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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 
cassegrainian telescope
Earth science; Mapping science
A reflecting telescope which reflects incoming radiation from the paraboloidal primary mirror to a small, hyperboloidal secondary mirror and thence back through a hole in the ...
convergent camera
Earth science; Mapping science
An assemblage of two cameras mounted so as to have a fixed angle between their optical axes, and taking pictures simultaneously. The angular coverage is greater than that ...
compensation error
Earth science; Mapping science
The angle from the vertical through the compensator in a self leveling instrument to the line normal to the reflecting surface of the compensator's moving part.
Chauvenet's problem
Earth science; Mapping science
The problem of finding all practical operations for determining the inclination of a transit's horizontal axis of rotation as a function of the observed zenithal distance, taking ...
camera port
Earth science; Mapping science
The window of optical quality, in an aircraft, through which aerial photographs are taken. The quality of the camera port has a significant effect on the quality of the ...
transverse comparator
Earth science; Mapping science
An instrument which allows two standards of length to be compared by substituting the one standard (bar) for the other in the instrument.
compass north
Earth science; Mapping science
The direction indicated by the north-seeking end of the needle or other magnetic component of a magnetic compass. It differs from magnetic north, the direction of a magnetic ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)