dynamo theory

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• Dynamo theory — In geophysics, dynamo theory proposes a mechanism by which a celestial body such as the Earth or a star generates a magnetic field. The theory describes the process through which a rotating, convecting, and electrically conducting fluid can… …   Wikipedia

• dynamo theory — ▪ geophysics       geophysical theory that explains the origin of the Earth s main magnetic field in terms of a self exciting (or self sustaining) dynamo. In this dynamo mechanism, fluid motion in the Earth s outer core moves conducting material… …   Universalium

• Dynamo (disambiguation) — Dynamo or Dinamo may refer to: Contents 1 In Science and Engineering 1.1 In Engineering 1.2 Software …   Wikipedia

• DYNAMO (programming language) — DYNAMO (DYNAmic MOdels) was a simulation language and accompanying graphical notation developed within the system dynamics analytical framework. It was originally for industrial dynamics but was soon extended to other applications, including… …   Wikipedia

• SV Dynamo — Founded March 27, 1953; 58 years ago (1953 03 27); dissolved: November 23, 1989; 21 years ago ( …   Wikipedia

• X-ray astronomy — X rays start at 0.008 nm and extend across the electromagnetic spectrum to 8 nm, over which the Earth s atmosphere is opaque. X ray astronomy is an observational branch of astronomy which deals with the study of X ray observation and detection… …   Wikipedia

• geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …   Universalium

• Mercury's magnetic field — Magnetosphere of Mercury Graph showing relative strength of Mercury s magnetic field. Discovery[1] …   Wikipedia

• mercury — /merr kyeuh ree/, n., pl. mercuries. 1. Chem. a heavy, silver white, highly toxic metallic element, the only one that is liquid at room temperature; quicksilver: used in barometers, thermometers, pesticides, pharmaceutical preparations,… …   Universalium

• Magnetic field — This article is about a scientific description of the magnetic influence of an electric current or magnetic material. For the physics of magnetic materials, see magnetism. For information about objects that create magnetic fields, see magnet. For …   Wikipedia

• Georeactor — The georeactor is a proposal by J. Marvin Herndon that a nuclear fission reactor may exist and operate at the Earth s core and serves as the energy source for the geomagnetic field. Herndon had earlier proposed the existence of fission reactors… …   Wikipedia