continuous spectra

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• Continuous spectrum — The spectrum of a linear operator is commonly divided into three parts: point spectrum, continuous spectrum, and residual spectrum. If H is a topological vector space and is a linear map, the spectrum of A is the set of complex numbers λ such… …   Wikipedia

• RCA Spectra 70 — The RCA Spectra 70 was a line of electronic data processing (EDP) equipment manufactured by the Radio Corporation of America’s computer division beginning in April 1965. The Spectra 70 line included several CPU models, various configurations of… …   Wikipedia

• Discrete spectrum — For a mathematically rigorous point of view of discrete spectrum , see decomposition of spectrum (functional analysis). In physics, an elementary (and accurate) explanation of a discrete spectrum is that it is an emission spectrum or absorption… …   Wikipedia

• electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …   Universalium

• Nebula — Nebulae redirects here. For the supercomputer in China, see Nebulae (computer). For other uses, see Nebula (disambiguation). The Pillars of Creation from the Eagle Nebula …   Wikipedia

• Orion 1 and Orion 2 Space Observatories — The Orion 1 Space Observatory and Orion 2 Space Observatory were space observatories installed in spacecraft launched by the space program of the Soviet Union during the 1970s. Contents 1 Orion 1 1.1 Specifications 2 Orion 2 …   Wikipedia

• Arnold Kosevich — (July 7, 1928 October 3, 2006) was a Ukrainian physicist. He received an academic status of Professor in 1967. Corresponding member of National Academy of Sciences of Ukraine since 1990. Honoured Man of Science and Engineering, 1977. Was awarded… …   Wikipedia

• Digital physics — In physics and cosmology, digital physics is a collection of theoretical perspectives based on the premise that the universe is, at heart, describable by information, and is therefore computable. Therefore, the universe can be conceived as either …   Wikipedia

• oxidation–reduction reaction — ▪ chemical reaction Introduction also called  redox reaction        any chemical reaction in which the oxidation number of a participating chemical species changes. The term covers a large and diverse body of processes. Many oxidation– reduction… …   Universalium

• Electric light — Most of the industrialized world is lit by electric lights, which are used both at night and to provide additional light during the daytime. These lights are normally powered by the electric grid, but some run on local generators, and emergency… …   Wikipedia

• Hungary — This article is about the European country. For other uses, see Hungary (disambiguation). Republic of Hungary Magyar Köztársaság …   Wikipedia