Crystal (software) — For other uses, see Crystal (disambiguation). CRYSTAL is a quantum chemistry ab initio program, designed primarily for calculations on crystals (3 dimensions), slabs (2 dimensions) and polymers (1 dimension) using translational symmetry, but it… … Wikipedia
Crystal structure — In mineralogy and crystallography, crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice… … Wikipedia
List of mathematics articles (S) — NOTOC S S duality S matrix S plane S transform S unit S.O.S. Mathematics SA subgroup Saccheri quadrilateral Sacks spiral Sacred geometry Saddle node bifurcation Saddle point Saddle surface Sadleirian Professor of Pure Mathematics Safe prime Safe… … Wikipedia
1990 Plainfield tornado — Infobox tornado single name = Plainfield Crest Hill Joliet Tornado image location = date = August 28, 1990 time = 3:15 p.m. to 3:45 p.m. CDT fujitascale = F5 total damages (USD) = $165 million total fatalities = 29 area affected = Plainfield,… … Wikipedia
thunderstorm — /thun deuhr stawrm /, n. a transient storm of lightning and thunder, usually with rain and gusty winds, sometimes with hail or snow, produced by cumulonimbus clouds. Also called electrical storm. [1645 55; THUNDER + STORM] * * * Violent, short… … Universalium
Maghemite — Not to be confused with Magnesite, Magnetite, or Magnemite. Maghemite General Category Oxide minerals Chemical formula γ Fe2O3 Strunz classification … Wikipedia
2002 Midwest to Mid-Atlantic United States tornado outbreak — Coordinates: 40°N 86°W / 40°N 86°W / 40; 86 The 2002 Midwest to Mid Atlantic United States tornado outbreak … Wikipedia
Miller index — Planes with different Miller indices in cubic crystals … Wikipedia
Cervandonite — General Category Silicate mineral Chemical formula (Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH) Strunz classification 09.BE.09 … Wikipedia
Ice — This article is about water ice. For the broader concept of ices as used in the planetary sciences, see volatiles. For other uses, see Ice (disambiguation) … Wikipedia