propagating
81Ultrashort pulse — In optics, an ultrashort pulse of light is an electromagnetic pulse whose time duration is on the order of the femtosecond (10 − 15 second). Such pulses have a broadband optical spectrum, and can be created by mode locked oscillators. They are… …
82Charter of 1606 — faceplate of book in which Charter was published[citation needed] The Charter of 1606, also known as the First Charter of Virginia, is a document from King James I of England to the Virgin …
83DXing — is the hobby of tuning in and identifying distant radio or television signals, or making two way radio contact with distant stations in amateur radio, citizens band radio or other two way radio communications. Many DXers also attempt to receive… …
84Nordström's theory of gravitation — In theoretical physics, Nordström s theory of gravitation was a predecessor of general relativity. Strictly speaking, there were actually two distinct theories proposed by the Finnish theoretical physicist Gunnar Nordström, in 1912 and 1913… …
85Slow light — is the literal slowing of the speed of light. It is the propagation of an optical pulse or other modulation of an optical carrier at a very low group velocity. The term is usually only applied when the velocity is at least hundreds of times… …
86Sources of Singapore law — There are generally regarded to be three sources of Singapore law: legislation, judicial precedents (case law) and custom. [See, generally, ch. 6 of cite book|last=Chan|first=Helena H.M. (Hui meng)|title=The Legal System of… …
87Periyar E. V. Ramasamy — For other uses, see Periyar (disambiguation). Periyar E. V. Ramasamy Periyar E. V. Ramasamy during his early life as a merchant Born 17 September 1879(1879 09 17) Erode, Madras P …
88Mathematical descriptions of opacity — When an electromagnetic wave travels through a medium in which it gets absorbed (this is called an opaque or attenuating medium), it undergoes exponential decay as described by the Beer–Lambert law. However, there are many possible ways to… …
89Near Field Magnetic Induction Communication System — A Near Field Magnetic Induction Communication System is a short range wireless physical layer that communicates by coupling a tight, low power, non propagating magnetic field between devices. The concept is for a transmitter coil in one device to …
90Accelerateur MHD — Accélérateur MHD Un accélérateur MHD (magnétohydrodynamique) est un convertisseur MHD qui met en mouvement un fluide conducteur, grâce à un champ électrique et un champ magnétique combinés. Le principe de base est le même que celui d un moteur… …
