Defect of illumination, is the maximum angular width of the unilluminated part of a celestial body, seen by a given observer. For example, if an object is 40 seconds of arc across and is 75% illuminated, the defect of illumination is 10 seconds of arc.
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Angular diameter — The angular diameter or apparent size of an object as seen from a given position is the “visual diameter” of the object measured as an angle. In the vision sciences it is called the visual angle. The visual diameter is the diameter of the… … Wikipedia
Transit of Earth from Mars — A transit of Earth across the Sun as seen from Mars takes place when the planet Earth passes directly between the Sun and Mars, obscuring a small part of the Sun s disc for an observer on Mars. During a transit, Earth could be seen from Mars as a … Wikipedia
Wikipedia:Graphic Lab/Resources/Creating shaded relief (GRASS, 3DEM) — See also: Wikipedia:Graphic Lab/Resources/Optimizing shaded relief using GIMP (old) The object of this tutorial is to create (composite) relief shadows resulting from a digital elevation model (DEM) created using the programs 3DEM or GRASS GIS.… … Wikipedia
Nitrogen-vacancy center — The nitrogen vacancy center (N V center) is one of numerous point defects in diamond. Its most explored and useful property is photoluminescence, which can be easily detected from an individual N V center. Electron spins at N V centers, localized … Wikipedia
Lighting — Not to be confused with lightning. For other uses, see lighting (disambiguation). Low intensity lighting and haze in a concert hall allows laser effects to be visible … Wikipedia
Illuminated Manuscripts — • A large number of manuscripts covered with painted ornaments Catholic Encyclopedia. Kevin Knight. 2006. Illuminated Manuscripts Illuminated Manuscripts … Catholic encyclopedia
Myopia — For other uses, see Myopia (disambiguation). Myopia Classification and external resources ICD 10 H … Wikipedia
colour — /kul euhr/, n., adj. v.t., v.i. Chiefly Brit. color. Usage. See or1. * * * I Aspect of any object that may be described in terms of hue, brightness, and saturation. It is associated with the visible wavelengths of electromagnetic radiation, which … Universalium
Extreme ultraviolet lithography — (also known as EUV or EUVL ) is a next generation lithography technology using the 13.5 nm EUV wavelength. EUVL opticsEUVL is a significant departure from the deep ultraviolet lithography used today. All matter absorbs EUV radiation. Hence, EUV… … Wikipedia
Center of Excellence in Nanotechnology at AIT — Center of Excellence at AIT CoEN @ AIT Motto There is no sky to limit us at the bottom Type Center of Excellence Endowment … Wikipedia
