• Thumbnail for Earth's magnetic field
    Earth's magnetic field, and conversely the South geomagnetic pole corresponds to the north pole of Earth's magnetic field (because opposite magnetic poles...
    78 KB (8,955 words) - 20:07, 4 September 2024
  • geographic south). The Earth's magnetic field has alternated between periods of normal polarity, in which the predominant direction of the field was the same as...
    43 KB (4,848 words) - 12:52, 27 August 2024
  • Thumbnail for Earth's inner core
    Earth's mantle. Information about Earth's core mostly comes from analysis of seismic waves and Earth's magnetic field. The inner core is believed to be...
    60 KB (7,198 words) - 13:27, 7 September 2024
  • Thumbnail for Magnetic field
    A magnetic field (sometimes called B-field) is a physical field that describes the magnetic influence on moving electric charges, electric currents,: ch1 ...
    104 KB (12,959 words) - 07:52, 9 August 2024
  • proposed the model of dynamo theory, which attributes Earth's magnetic field to the motion of Earth's iron outer core. Through the use of magnetometers,...
    21 KB (2,381 words) - 01:58, 18 May 2024
  • Thumbnail for Earth's outer core
    the outer core as the principal source of Earth's magnetic field. The average magnetic field strength in Earth's outer core is estimated to be 2.5 millitesla...
    24 KB (2,368 words) - 15:39, 27 August 2024
  • Thumbnail for Magnetic dip
    Magnetic dip, dip angle, or magnetic inclination is the angle made with the horizontal by Earth's magnetic field lines. This angle varies at different...
    9 KB (1,042 words) - 11:26, 24 March 2024
  • Thumbnail for South Atlantic Anomaly
    magnetic field is weakest relative to an idealized Earth-centered dipole field. The area of the SAA is confined by the intensity of Earth's magnetic field...
    16 KB (1,613 words) - 20:02, 19 August 2024
  • Thumbnail for Dynamo theory
    maintain a magnetic field over astronomical time scales. A dynamo is thought to be the source of the Earth's magnetic field and the magnetic fields of Mercury...
    34 KB (4,393 words) - 09:31, 12 July 2024
  • Thumbnail for North magnetic pole
    dipole model of the Earth's magnetic field, which is the most closely fitting model of Earth's actual magnetic field. The north magnetic pole moves over time...
    25 KB (2,822 words) - 22:42, 14 July 2024
  • Thumbnail for Earth's ambipolar electric field
    uncertainty of 0.09 volt. Earth's magnetic field Lacey Young (28 August 2024), Discovering Earth’s Third Global Energy Field, NASA Collinson, Glyn A.;...
    2 KB (149 words) - 09:26, 2 September 2024
  • Thumbnail for Magnetic declination
    Magnetic declination (also called magnetic variation) is the angle between magnetic north and true north at a particular location on the Earth's surface...
    23 KB (2,926 words) - 10:19, 6 August 2024
  • Magnetic field or magnetic fields may also refer to: The magnetosphere, or magnetic field of a celestial body Earth's magnetic field Magnetic field of...
    900 bytes (146 words) - 04:10, 14 June 2024
  • Thumbnail for Dipole model of the Earth's magnetic field
    The dipole model of the Earth's magnetic field is a first order approximation of the rather complex true Earth's magnetic field. Due to effects of the...
    4 KB (625 words) - 19:32, 16 October 2022
  • Thumbnail for Magnetoreception
    Magnetoreception is a sense which allows an organism to detect the Earth's magnetic field. Animals with this sense include some arthropods, molluscs, and...
    59 KB (6,208 words) - 05:28, 7 August 2024
  • Thumbnail for Earth science
    Earth's magnetic field, and conversely the South geomagnetic pole corresponds to the north pole of Earth's magnetic field (because opposite magnetic poles...
    26 KB (3,157 words) - 03:30, 8 July 2024
  • Thumbnail for Magnetometer
    an ambient magnetic field, in this case, the Earth's magnetic field. Other magnetometers measure the magnetic dipole moment of a magnetic material such...
    74 KB (9,394 words) - 04:32, 6 September 2024
  • Thumbnail for Internal structure of Earth
    whose flow generates the Earth's magnetic field, and a solid inner core. Scientific understanding of the internal structure of Earth is based on observations...
    33 KB (3,140 words) - 16:59, 3 September 2024
  • region radiation levels vary. The belts are in the inner region of Earth's magnetic field. They trap energetic electrons and protons. Other nuclei, such as...
    39 KB (4,542 words) - 17:30, 4 September 2024
  • Thumbnail for Magnetic anomaly
    In geophysics, a magnetic anomaly is a local variation in the Earth's magnetic field resulting from variations in the chemistry or magnetism of the rocks...
    19 KB (2,034 words) - 18:28, 17 August 2024
  • Thumbnail for South magnetic pole
    pole of an ideal dipole model of the Earth's magnetic field that most closely fits the Earth's actual magnetic field. For historical reasons, the "end"...
    8 KB (793 words) - 23:12, 9 August 2024
  • Thumbnail for Paleomagnetism
    Paleomagnetism (occasionally palaeomagnetism) is the study of prehistoric Earth's magnetic fields recorded in rocks, sediment, or archeological materials. Geophysicists...
    19 KB (2,262 words) - 02:25, 7 September 2024
  • Thumbnail for Helmholtz coil
    creating magnetic fields, Helmholtz coils are also used in scientific apparatus to cancel external magnetic fields, such as the Earth's magnetic field. When...
    15 KB (2,250 words) - 06:26, 3 September 2024
  • Thumbnail for Interplanetary magnetic field
    interplanetary magnetic field (IMF), now more commonly referred to as the heliospheric magnetic field (HMF), is the component of the solar magnetic field that is...
    6 KB (731 words) - 18:08, 8 September 2024
  • Thumbnail for World Magnetic Model
    The World Magnetic Model (WMM) is a large spatial-scale representation of the Earth's magnetic field. It was developed jointly by the US National Geophysical...
    5 KB (555 words) - 22:41, 6 April 2024
  • Thumbnail for Geomagnetic pole
    dipole model to describing the magnetic field observed at Earth's surface. In contrast, the magnetic poles of the actual Earth are not antipodal; that is...
    10 KB (1,187 words) - 02:16, 19 February 2024
  • Thumbnail for L-shell
    of planetary magnetic field lines. Colloquially, L-value often describes the set of magnetic field lines which cross the Earth's magnetic equator at a...
    10 KB (1,392 words) - 08:24, 3 June 2024
  • Thumbnail for Earth's internal heat budget
    which generates Earth's magnetic field. Despite its geological significance, Earth's interior heat contributes only 0.03% of Earth's total energy budget...
    18 KB (2,115 words) - 11:18, 20 August 2024
  • Thumbnail for Geophysics
    Geophysics (redirect from Earth physics)
    classically refers to solid earth applications: Earth's shape; its gravitational, magnetic fields, and electromagnetic fields ; its internal structure and...
    50 KB (5,284 words) - 08:29, 19 July 2024
  • Thumbnail for Magnetic anomaly detector
    A magnetic anomaly detector (MAD) is an instrument used to detect minute variations in the Earth's magnetic field. The term refers specifically to magnetometers...
    7 KB (790 words) - 05:46, 1 January 2024