gap arrangement
71Tape head — For the album by King s X, see Tape Head. A tape head is a type of transducer used in tape recorders to convert electrical signals to magnetic fluctuations and vice versa. Contents 1 Principles of operation 1.1 Reversibility 1.2 Head g …
72chemical bonding — ▪ chemistry Introduction any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …
73Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …
74Photonic metamaterial — Electromagnetism Electricity · …
75JEWISH AND ISLAMIC LAW, A COMPARATIVE REVIEW — The Relationship between Jewish and Islamic Law Comparative studies in the field of Jewish and Islamic Law began more than 150 years ago with the publication of Abraham Geiger s Was hat Mohammed aus dem Judenthum aufgenommen (1833, rev. 1902).… …
76Today (NBC program) — The Today Show redirects here. For other programming called Today , see Today (disambiguation). Today Today title shot as of September 2009 Genre News Talk …
77historiography — historiographic /hi stawr ee euh graf ik, stohr /, historiographical, adj. historiographically, adv. /hi stawr ee og reuh fee, stohr /, n., pl. historiographies. 1. the body of literature dealing with historical matters; histories collectively. 2 …
78quasicrystal — /kway zuy kris tl, kway suy , kwah see , zee /, n. a form of solid matter whose atoms are arranged like those of a crystal but assume patterns that do not exactly repeat themselves. [1985 90] * * * Introduction also called quasi periodic crystal …
79Physical 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… …
80X-ray crystallography — can locate every atom in a zeolite, an aluminosilicate with many important applications, such as water purification. X ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X rays strikes a… …
