rotation of crystal
91Point groups in three dimensions — In geometry, a point group in three dimensions is an isometry group in three dimensions that leaves the origin fixed, or correspondingly, an isometry group of a sphere. It is a subgroup of the orthogonal group O(3), the group of all isometries… …
92Wallpaper group — A wallpaper group (or plane symmetry group or plane crystallographic group) is a mathematical classification of a two dimensional repetitive pattern, based on the symmetries in the pattern. Such patterns occur frequently in architecture and… …
93Grain boundary — A grain boundary is the interface between two grains in a polycrystalline material. Grain boundaries disrupt the motion of dislocations through a material, so reducing crystallite size is a common way to improve strength, as described by the Hall …
94Subacromial bursitis — Infobox Disease Name = Subacromial bursitis Caption = DiseasesDB = ICD10 = ICD10|M|75|5|m|70 ICD9 = ICD9|726.19 ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = Subacromial bursitis is a condition caused by inflammation of… …
95Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
96Crystallite — Galvanized surface with visible crystallites of zinc. Crystallites in the steel under the coating are microscopic. Crystallites are small, often microscopic crystals that, held together through highly defective boundaries, constitute a… …
97Euler angles — The Euler angles were developed by Leonhard Euler to describe the orientation of a rigid body (a body in which the relative position of all its points is constant) in 3 dimensional Euclidean space. To give an object a specific orientation it may… …
98Pokémon (anime) — Pokémon Pokémon: Indigo League DVD Box Set …
99Glasharmonika — Franklins Glasharmonika, 1776 …
100Glasorgel — Eine Glasharmonika Zeitgenössische Glasharmonika aus der Werkstatt Finkenbeiner …
