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This glossary of astronomy is a list of definitions of terms and concepts relevant to astronomy and cosmology, their sub-disciplines, and related fields. Astronomy is concerned with the study of celestial objects and phenomena that originate outside the atmosphere of Earth. The field of astronomy features an extensive vocabulary and a ...
MONS – (telescope) Measuring Oscillations in Nearby Stars, a Danish space telescope that was proposed and designed but not built [6] MOST – (telescope) Microvariability and Oscillations of STars, a space telescope designed to detect oscillations in the atmospheres of stars and extrasolar planetss in orbit around other stars
This glossary of aerospace engineering terms pertains specifically to aerospace engineering, its sub-disciplines, and related fields including aviation and aeronautics. For a broad overview of engineering, see glossary of engineering .
The subsidiary space alongside the body of a building, separated from it by columns, piers, or posts. Ante-choir The space enclosed in a church between the outer gate or railing of the rood screen and the door of the screen. Apron 1. A raised panel below a window or wall monument or tablet. 2.
Also actiniform. Describing a collection of low-lying, radially structured clouds with distinct shapes (resembling leaves or wheels in satellite imagery), and typically organized in extensive mesoscale fields over marine environments. They are closely related to and sometimes considered a variant of stratocumulus clouds. actinometer A scientific instrument used to measure the heating power of ...
The space-borne or satellite navigation system NCAT National Center for Aviation Training: US educational facility NCATT National Center for Aircraft Technician Training US educational facility ND Navigation display NDB non-directional beacon: NDT non-destructive testing: NFF No fault found: Or: no trouble found (NTF) or no defect found (NDF) NGS
Debates concerning the nature, essence and the mode of existence of space date back to antiquity; namely, to treatises like the Timaeus of Plato, or Socrates in his reflections on what the Greeks called khôra (i.e. "space"), or in the Physics of Aristotle (Book IV, Delta) in the definition of topos (i.e. place), or in the later "geometrical conception of place" as "space qua extension" in the ...
The study of macroscopic, atomic, subatomic, and particulate phenomena in chemical systems in terms of laws and concepts of physics. physical constant physical quantity physics The natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force.