waveguide bend
21Goubou line — A Goubau line, Goubou line, or G line for short, is a single wire transmission line intended for use at UHF and microwave wavelengths. DescriptionThe Goubau line itself consists of a single conductor coated with dielectric material. Coupling to… …
22Seven Days (TV series) — Seven Days Seven Days intertitle Format Science fiction Drama Created by Christopher Crowe Zachary Crowe …
23J. J. Thomson — Infobox Scientist box width = 300px name = J. J. Thomson image size = 200px caption = Sir Joseph John Thomson (1856 1940). Portrait by Arthur Hacker. birth date = 18 December 1856 birth place = Cheetham Hill, Manchester, UK death date = Death… …
24Superlens — A superlens, super lens or perfect lens is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is an inherent limitation in conventional optical devices or lenses.[1] In 2000, a type of lens was proposed,… …
25Fiber-optic communication — An optical fiber junction box. The yellow cables are single mode fibers; the orange and blue cables are multi mode fibers: 50/125 µm OM2 and 50/125 µm OM3 fibers respectively. Fiber optic communication is a method of transmitting information from …
26Particle accelerator — Atom smasher redirects here. For other uses, see Atom smasher (disambiguation). A 1960s single stage 2 MeV linear Van de Graaff accelerator, here opened for maintenance A particle accelerator[1] is a device that uses electromagnetic fields to… …
27radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… …
