earth's magnetic field

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• Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals.[1] The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… …   Wikipedia

• Dipole model of the Earth's magnetic field — Plot showing field lines (which, in three dimensions would describe shells ) for L values 1.5, 2, 3, 4 and 5 using a dipole model of the Earth s magnetic field The dipole model of the Earth s magnetic field is a first order approximation of the… …   Wikipedia

• 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

• Magnetic field of celestial bodies — See also Earth s magnetic field The magnetic field of a rotating body of conductive gas or liquid develops self amplifying electric currents, and thus a self generated magnetic field, due to a combination of differential rotation (different… …   Wikipedia

• Magnetic field (disambiguation) — A magnetic field is the physical phenomenon produced by moving electric charges and exhibited by ferrous materials. Magnetic field or magnetic fields may also refer to: Directly related to primary meaning: Earth s magnetic field Magnetic field of …   Wikipedia

• magnetic field — mag.netic field n an area around an object that has magnetic power ▪ the Earth s magnetic field …   Dictionary of contemporary English

• Magnetic field — Field Field (f[=e]ld), n. [OE. feld, fild, AS. feld; akin to D. veld, G. feld, Sw. f[ a]lt, Dan. felt, Icel. fold field of grass, AS. folde earth, land, ground, OS. folda.] 1. Cleared land; land suitable for tillage or pasture; cultivated ground; …   The Collaborative International Dictionary of English

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

• magnetic field — 1. a region of space near a magnet, electric current, or moving charged particle in which a magnetic force acts on any other magnet, electric current, or moving charged particle. 2. See magnetic intensity. [1835 45] * * * Region around a magnet,… …   Universalium

• Magnetic field of the Moon — Total magnetic field strength at the surface of the Moon as derived from the Lunar Prospector electron reflectometer experiment. The external magnetic field of the Moon is very weak in comparison to that of the Earth. Other major differences are… …   Wikipedia

• Magnetic field imaging — Patient during an MFI acquisition Schematic visualization of an MFI acquisition …   Wikipedia