crystal systems
31Crystal filter — A crystal filter is a special form of quartz crystal used in electronics systems, in particular communications devices. It provides a very precisely defined centre frequency and very steep bandpass characteristics, that is a very high Q factor… …
32Crystal Geyser — Coordinates: 38°56′18″N 110°08′08″W / 38.938253°N 110.135440°W / 38.938253; 110.135440 …
33Liquid crystal — Schlieren texture of liquid crystal nematic phase Liquid crystals (LCs) are a state of matter that have properties between those of a conventional liquid and those of a solid crystal.[1] For instance, an LC may flow like a liquid, but its… …
34Colloidal crystal — A colloidal crystal is an ordered array of colloid particles, analogous to a standard crystal whose repeating subunits are atoms or molecules.[1] A natural example of this phenomenon can be found in the gem opal, where spheres of silica assume a… …
35Cubic crystal system — A rock containing three crystals of pyrite (FeS2). The crystal structure of pyrite is simple cubic, and this is reflected in the cubic symmetry of its natural crystal facets …
36Photonic crystal — The opal in this bracelet contains a natural periodic microstructure responsible for its iridescent color. It is essentially a natural photonic crystal, although it does not have a complete photonic band gap. Photonic crystals are periodic… …
37Monoclinic crystal system — An example of the monoclinic crystals, orthoclase In crystallography, the monoclinic crystal system is one of the 7 lattice point groups. A crystal system is described by three vectors. In the monoclinic system, the crystal is described by… …
38Orthorhombic crystal system — An example of the orthorhombic crystals, aragonite In crystallography, the orthorhombic crystal system is one of the seven lattice point groups. Orthorhombic lattices result from stretching a cubic lattice along two of its orthogonal pairs by two …
39Phonak Hearing Systems — Dieser Artikel wurde aufgrund inhaltlicher Mängel auf der Qualitätssicherungsseite des Portals Wirtschaft eingetragen. Du kannst helfen, indem Du die inhaltlichen Mängel beseitigst oder Dich an der Diskussion beteiligst …
40liquid crystal display — n. LCD * * * ▪ electronics Introduction electronic display device that operates by applying a varying electric voltage to a layer of liquid crystal, thereby inducing changes in its optical properties. LCDs are commonly used for portable… …
