Результаты поиска по запросу "magnetic field of earth":

  1. Earth's magnetic field - Wikipedia

    Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from the Earth's interior out into space, where it meets the solar wind, a stream of charged particles emanating from the Sun.

    en.wikipedia.org

  2. Earth's Magnetic Field

    • Roughly speaking it is the field of a magnetic dipole currently tilted at an angle of about 10 degrees with respect to Earth's rotational axis, as if there were a bar magnet placed at that angle at the center of the Earth.

    www.crystalinks.com

  3. Magnetic Field of the Earth

    • This means the electrically conducting material moves relative to the earth's magnetic field. If it can obtain a charge by some interaction like friction between layers, an effective current loop could be produced. The magnetic field of a current loop could sustain the magnetic dipole type magnetic...

    hyperphysics.phy-astr.gsu.edu

  4. What is Earth's Magnetic Field? - Universe Today

    • The Earth is like a great big magnet.
    • And the movements of metal in the core sets up the currents and magnetic field. As I mentioned at the top of this article, the magnetic field of the Earth protects the planet from space radiation.

    www.universetoday.com

  5. Earth's Magnetic Field - Windows to the Universe

    • If you pretended that Earth had a gigantic bar magnet inside of it (it doesn't really, of course), you would have a pretty good idea about the approximate shape of Earth's magnetic field.

    www.windows2universe.org

  6. Earth's Magnetic Field Calculators - Instructions | NCEI

    • Compute Earth's Magnetic Field Values. On-line calculators to estimate current and past values of the magnetic field. If you want only the magnetic declination (variation) for a single day between 1900-present, visit our declination calculator.

    www.ngdc.noaa.gov

  7. The Magnetic Field of the Earth

    • Magnetism also plays a major role in exploration geophysics in the search for ore deposits.
    • After that we went on and proved how the gravitational potential obeyed Laplace’s. 76 chapter 3. the magnetic field of the earth.

    www-gpsg.mit.edu

  8. How Vital Is a Planet's Magnetic Field? New Debate Rises

    • She believes Earth's magnetic field could have made the difference in the past when the solar wind was presumably stronger. "People aren't putting all the cards on the table," Luhmann said. "We can't say that magnetic fields are unimportant from the current data."

    www.space.com

  9. How Earth's magnetic field is changing | Earth | EarthSky

    • Earth’s continuously changing magnetic field is thought to be largely generated by superheated, swirling liquid iron in Earth’s outer core. Other sources of earthly magnetism include minerals in our world’s mantle and crust.

    earthsky.org

  10. Dipole model of the Earth's magnetic field - Wikipedia

    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 interplanetary magnetic field, and the solar wind, the dipole model is particularly inaccurate at high L-shells (e.g., above L=3)...

    en.wikipedia.org