- imperfect crystals
- • реален кристал
English-Bulgarian polytechnical dictionary . 2013.
English-Bulgarian polytechnical dictionary . 2013.
Volcanic rock — is an igneous rock of volcanic origin. Texture Volcanic rocks are usually fine grained or aphanitic to glassy in texture. They often contain clasts of other rocks and phenocrysts. Phenocrysts are crystals that are larger than the matrix and are… … Wikipedia
Anomalous X-ray scattering — AXRS or XRAS is a technique within X ray diffraction that makes use of the anomalous dispersion that occurs when a wavelength is selected that is in the vicinity of an absorption edge of one of the constituent elements of the sample.Atomic… … Wikipedia
Andre Guinier — André Guinier Pour les articles homonymes, voir Guinier. André Guinier, né à Nancy en 1911 et décédé en 2000, est un scientifique français qui s est illustré dans le domaine de la cristallographie. Sommaire 1 Biographie 2 Ouvrag … Wikipédia en Français
André Guinier — Pour les articles homonymes, voir Guinier. André Guinier, né à Nancy en 1911 et décédé en 2000, est un scientifique français qui s est illustré dans le domaine de la cristallographie. Sommaire 1 Biographie 2 Ouvrages … Wikipédia en Français
Scherrer-Gleichung — Die Scherrer Gleichung bietet in der Röntgenbeugung die Möglichkeit, die Kristallgröße experimentell zu bestimmen. Sie geht zurück auf den Schweizer Physiker Paul Scherrer. Im Allgemeinen lässt sich das Beugungsbild der Röntgenbeugung durch die… … Deutsch Wikipedia
Дарвин, Чарльз Галтон — У этого термина существуют и другие значения, см. Дарвин. Чарльз Галтон Дарвин Sir Charles Galton Darwin … Википедия
Oxide minerals — ▪ Table Oxide minerals name colour lustre Mohs hardness specific gravity anatase brown to indigo blue and black; also variable adamantine to metallic adamantine 5½–6 3.8–4.0 boehmite white, when pure 3 3.0–3.1 brookite various browns metallic… … Universalium
climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… … Universalium
photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… … Universalium
liquid crystal — a liquid having certain crystalline characteristics, esp. different optical properties in different directions when exposed to an electric field. [1890 95] * * * Substance that flows like a liquid but maintains some of the ordered structure… … Universalium
metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… … Universalium