Coupling — This article is about a mechanical connection between two objects. For other uses, see Coupling (disambiguation). Rotating coupling A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power.… … Wikipedia
Disc coupling — Disc coupling: by definition, transmits torque from a driving to a driven bolt tangentially on a common bolt circle. Torque is transmitted between the bolts through a series of thin, stainless steel discs assembled in a pack. Misalignment is… … Wikipedia
Giant magnetoresistance — Founding results of Fert et al. Giant magnetoresistance (GMR) is a quantum mechanical magnetoresistance effect observed in thin film structures composed of alternating ferromagnetic and non magnetic layers. The 2007 Nobel Prize in physics was… … Wikipedia
Marcus theory — is a theory originally developed by Rudolph A. Marcus, starting in 1956, to explain the rates of electron transfer reactions – the rate at which an electron can move or jump from one chemical species (called the electron donor) to another (called … Wikipedia
Capacitor — This article is about the electronic component. For the physical phenomenon, see capacitance. For an overview of various kinds of capacitors, see types of capacitor. Capacitor Modern capacitors, by a cm ruler Type Passive … Wikipedia
Dilatant — A dilatant (also termed shear thickening) material is one in which viscosity increases with the rate of shear strain. Such a shear thickening fluid, also known by the acronym STF, is an example of a non Newtonian fluid. Comparison of the behavior … Wikipedia
RKKY interaction — RKKY stands for Ruderman Kittel Kasuya Yosida and refers to a coupling mechanism of nuclear magnetic moments or localized inner d or f shell electron spins in a metal by means of an interaction through the conduction electrons. The RKKY… … Wikipedia
Physical 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… … Universalium
Carcerand — A carcerand is a host molecule that completely entraps it guest so that it will not escape even at high temperatures. [ Shell closure of two cavitands forms carcerand complexes with components of the medium as permanent guests Donald J. Cram,… … Wikipedia
Mamiya RZ67 — RZ67 Pro I ready for shooting The Mamiya RZ67 line of medium format single lens reflex cameras manufactured by Mamiya includes three successive models, the RZ67 Professional (first model released in 1982), RZ67 Professional II (released in 1995)… … Wikipedia