Are there certain elements that if present in large quantaties could make it stronger? Also is there any connection at all between Earths gravity and magnetic field?
2007-02-24 13:46:28 · 11 answers · asked by Jay 2 in Science & Mathematics ➔ Astronomy & Space
The poloidal field around Earth's surface is induced by a toroidal current moving through the mantle, which itself is probably induced by coriolis forces and by the poloidal rotation of magnetized iron in the Earth's core.
2007-02-24 13:53:29 · answer #1 · answered by Anonymous · 0⤊ 2⤋
The field is similar to that of a bar magnet, but this similarity is superficial. The magnetic field of a bar magnet, or any other type of permanent magnet, is created by the coordinated spins of electrons and nuclei within iron atoms. The Earth's core, however, is hotter than 1043 K, the Curie point temperature at which the orientations of spins within iron become randomized. Such randomization causes the substance to lose its magnetic field. Therefore the Earth's magnetic field is caused not by magnetized iron deposits, but mostly by electric currents in the liquid outer core (as it spins, electrons tend to stay behind, thus producing a small current).
Another feature that distinguishes the Earth magnetically from a bar magnet is its magnetosphere. At large distances from the planet, this dominates the surface magnetic field. Electric currents induced in the ionosphere also generate magnetic fields. Such a field is always generated near where the atmosphere is closest to the Sun, causing daily alterations which can deflect surface magnetic fields by as much as one degree.
2007-02-24 14:39:08 · answer #2 · answered by paul13051956 3 · 0⤊ 2⤋
MAGNETIC FIELD
The area in which an attractive or repelling force exists between two magnets or in association with the element iron. The Earth's magnetic field is thought to be due to the liquid iron-nickel which is in its core. This magnetic field protects Earth from constant bombardment by high-energy charged particles.
2007-02-24 13:53:33 · answer #3 · answered by Anonymous · 2⤊ 0⤋
The spinning of the iron core of the earth causes the magnetic field. Gravity works to make heavier objects sink to the center of the planet as it is formed. That's why the core is mostly iron and heavier radioactive particles.
2007-02-24 13:52:23 · answer #4 · answered by Sandra C 2 · 1⤊ 0⤋
Simply put, nobody knows.
Current explanation: It's caused by the rotation of the earth's core.
There is no connection between gravity and magnetic field except that neither can be explained.
2007-02-24 13:59:27 · answer #5 · answered by Poncho Rio 4 · 0⤊ 1⤋
What we do know is earth is just part of the magnetic field of the solar system. The sun is the center primary magnet and at last check the field is far beyond our solar system. It is like a big vacuum sucking up stuff from space. Earth is like a motor in the suns magnetic web.
2007-02-24 15:16:23 · answer #6 · answered by RayM 4 · 0⤊ 2⤋
it is believed that the wave like movement of the earth's core is responsible for the formation of the earth's magnetic field. scientifically we are still in poor understanding as to how exactly magnetic field is created.
2007-02-24 13:54:26 · answer #7 · answered by nikki 2 · 2⤊ 0⤋
Solar wind is like an electrical currant passing earth. Earth is a conductor. Even if the core of the earth was bubble gum the earth would have an induced magnetic field.
2007-02-24 13:51:53 · answer #8 · answered by U-98 6 · 0⤊ 4⤋
Most say a huge deal of nickle and Iron with some hydrogen and o2.
But things differ from hemesphere to hemesphere in relation to how iron crystals are alined.
2007-02-24 13:54:31 · answer #9 · answered by Anonymous · 0⤊ 1⤋
it is the core addition of nife (nickel and iron) can improve in
2007-02-24 19:15:58 · answer #10 · answered by JAKE 3 · 0⤊ 1⤋