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electromagnet cathode-ray tube

См. также в других словарях:

  • electron tube — an electronic device that consists, typically, of a sealed glass bulb containing two or more electrodes: used to generate, amplify, and rectify electric oscillations and alternating currents. Also called electronic tube. Cf. gas tube, vacuum tube …   Universalium

  • History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… …   Wikipedia

  • printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …   Universalium

  • Magnet — This article is about objects and devices that produce magnetic fields. For a description of magnetic materials, see magnetism. For other uses, see Magnet (disambiguation) …   Wikipedia

  • Visual display unit — A visual display unit, often called simply a monitor or display, is a piece of electrical equipment which displays images generated from the video output of devices such as computers, without producing a permanent record. A newer monitor… …   Wikipedia

  • Coilgun — Gauss gun redirects here. For fictional weapons of this type, see electromagnetic projectile devices (fiction). Not to be confused with railgun. Simplified diagram of a multistage coilgun with three coils, a barrel, and a ferromagnetic projectile …   Wikipedia

  • Julius Plücker — Infobox Scientist name = Julius Plücker |300px image width = 300px caption = Julius Plücker birth date = birth date|1801|6|16|mf=y birth place = Elberfeld, Duchy of Berg death date = death date and age|1868|5|22|1801|6|16|mf=y death place = Bonn …   Wikipedia

  • magnetism — /mag ni tiz euhm/, n. 1. the properties of attraction possessed by magnets; the molecular properties common to magnets. 2. the agency producing magnetic phenomena. 3. the science dealing with magnetic phenomena. 4. strong attractive power or… …   Universalium

  • 7jp4 — The 7JP4 is an early black and white cathode ray tube used in late 1940s televisions. It has a 7 diameter round screen which was often partially masked. Unlike later electromagnetically deflected TV tubes, the 7JP4 is electrostatically deflected… …   Wikipedia

  • Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …   Wikipedia

  • Color television — Title card for NBC, promoting their broadcast in RCA color . Color television is part of the history of television, the technology of television and practices associated with television s transmission of moving images in color video. In its most… …   Wikipedia

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