Three things:
The core or the central part of the Earth is the region of the Earth that forms the magnetic fields. Huge amounts of iron, nickel and other magnetic substances in molten state present in the core create magnetic fields that give our planet its gravitational field.
The movement of the core generates electricity which in turn generates Earth's magnetic field
The magnetosphere, most specifically the Ionosphere.
vacuum or trough
Your magnetic compass does not actually point north, it merely aligns itself with the lines of magnetic force at your location. These do not necessarily point to the North - they may differ by some tens of degrees. This difference is the Magnetic Declination. On hikers maps, you'll find that the true north of the map is shown as well as the magnetic declination at that region. The declination itself changes slowly, too slow for you to bother with its changing.
During Metaphase the protein strands that attach to the centromere region are called spindle fibres.
All atoms consist of two regions. The nucleus is a very small region located near the center of an atom. In every atom the nucleus contains at least one positively charged particle called a proton and usually one or more neutral particles called neutrons. Surrounding the nucleus is a region occupied by negatively charged particles called electrons. This region is very large compared with the size of the nucleus. Protons, neutrons, and electrons are often referred to as subatomic particles.
A region in which the magnetic fields of atoms, or electron spin, are grouped together and similarly aligned.
The magnetic field. If it's an electromagnet, the electromagnetic field.
A Magnetic Force
That is called its magnetic field.
A Magnetic Force
If you mean the region of influence of the earth's magnetic field then its called the earth's magnetosphere
Technically impossible . In a rock , ferromagnetism can create poles , but not in atoms . Atoms cannot be magnetic . Molecules can be polar , which leads to Van der Waals links , but a region's molecule cannot become all lined in the same directions . http://www.youtube.com/watch?v=4VmMr9TWzY4 http://media-2.web.britannica.com/eb-media/65/265-004-9B256ADC.gif Pretty simple , as a matter of fact .
magnetic field is a region of space where a north magnetic monopole experiences a force. The direction of the field is by definition the direction of the force on the north end of a magnet. Since most texts contain diagrams of magnetic fields they will not be reproduced here.
Fertile Crescent
A condition found in the region around a magnet or an electric current, characterized by the existence of a detectable magnetic force at every point in the region and by the existence of magnetic poles.Read more: magnetic-field
That's called the magnetic field.
Magnetic feild