rigid symmetry
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Rigid Unit Modes — (RUMs) represent a class of lattice vibrations or phonons that exist in network materials such as quartz, cristobalite or zirconium tungstate. Network materials can be described as three dimensional networks of polyhedral groups of atoms such as… … Wikipedia
Rigid body — Classical mechanics Newton s Second Law History of classical mechanics … Wikipedia
Rigid rotor — The rigid rotor is a mechanical model that is used to explain rotating systems. An arbitrary rigid rotor is a 3 dimensional rigid object, such as a top. To orient such an object in space three angles are required. A special rigid rotor is the… … Wikipedia
Symmetry combinations — This article discusses various symmetry combinations.In 2D, mirror image symmetry in combination with n fold rotational symmetry, with the center of rotational symmetry on the line of symmetry, implies mirror image symmetry with respect to lines… … Wikipedia
Rigid body dynamics — Classical mechanics Newton s Second Law History of classical mechanics … Wikipedia
symmetry — noun (plural tries) Etymology: Latin symmetria, from Greek, from symmetros symmetrical, from syn + metron measure more at measure Date: 1563 1. balanced proportions; also beauty of form arising from balanced proportions 2. the property of being… … New Collegiate Dictionary
Semi-rigid molecule — A semi rigid molecule is a molecule which has a potential energy surface with a well defined minimum corresponding to a stable structure of the molecule. The only (quantum mechanical) motions that a semi rigid molecule makes are (small) internal… … Wikipedia
Western sculpture — ▪ art Introduction three dimensional artistic forms produced in what is now Europe and later in non European areas dominated by European culture (such as North America) from the Metal Ages (Europe, history of) to the present. Like… … Universalium
Modern architecture — This article is about architectural aspects of modernization and modernism. For most recent developments in architecture, see Contemporary architecture. Contrasts in modern architecture, as shown by adjacent high rises in Chicago, Illinois. IBM… … Wikipedia
Edward Lovett Pearce — Sir Edward Lovett Pearce (1699 ndash; 1733) was an Irish architect, and the chief exponent of palladianism in Ireland. A cousin of Sir John Vanbrugh, under whom he is thought to have studied, his principal works include the Irish Houses of… … Wikipedia
Hallstatt — [häl′stät΄, häl′shtät΄; hôl′stät΄] adj. 〚from archaeological findings at Hallstatt, Austria〛 designating or of an Iron Age culture (c. 700 400 B.C. ) in central Europe, characterized by swords of bronze or iron with winged metal terminals and by… … Universalium
