Magnetic Field

Magnetic field models[Oulu] Magnetic field models spaceweb@oulu.fi - last update: 11 May 1998, 1840 UT (RR) The magnetic field of the Earth has been investigated by satellites for several decades now, ...

Magnetic Field Reversals These figures show a simulation of the magnetic field of the Earth, from deep within the Earth's core, reversing itself. Click on image for full size version (55K GIF) ...

Earth's Magnetic Field The earth acts like a bar magnet. Study of the magnetic field gives more clues about the earth's core including the recent discovery that part of the core may be rotating more rapidly than the outer part of the earth.

MAGNETIC FIELD AND MAGNETOSPHERE Neptune, like most of the planets in the solar system, possesses an internal magnetic field.

Magnetic field Wikipedia, the free encyclopedia - Cite This Source In physics, the magnetic field is a field that permeates space and which exerts a magnetic force on moving electric charges and magnetic dipoles.

Magnetic fields extend infinitely, though they are weaker further from their source. The Earth's magnetic field, which effectively extends several tens of thousands of kilometres into space, is called the magnetosphere. Contents ...

magnetic field 1. the portion of space near a magnetic body or a current-carrying body in which the magnetic forces due to the body or current can be detected 2. the area around a magnetic pole in which magnetism exists ...

The magnetic field at all these points is already so weak that the solar wind overpowers it and shifts its field lines, while its own motion--radially outward--remains unchanged. We will now derive the shape of those lines.

Planet Atmospheres and Magnetic Fields This data is from the National Space Science Data Center's Fact Sheet site. Click on a planet's name to bring up the fact sheet at NSSDC. I have put together a list of links to excellent tours of each planet.

Definition: interplanetary magnetic field (IMF): The magnetic field carried with the solar wind. Space Tragedies9 Planets in Nine DaysAstronomy 101 Related Articles ...

Merging neutron stars make ultra-strong magnetic fields For the first time, simulations track intensified magnetic fields as neutron stars merge.

MAGNETIC FIELDS Adapted from P. Coles, 1999, The Routledge Critical Dictionary of the New Cosmology, Routledge Inc., New York Fields associated with the electromagnetic interaction.

Magnetic field lines loop through the solar atmosphere and interior to form a complicated web of magnetic structures. Many of these structures are visible in the chromosphere and corona, the outermost layers of the Sun's atmosphere.

Magnetic Field Uranus' magnetic field is odd for it is not centered on the center of the planet and is tilted almost 60° from the axis of rotation. It is probably generated by motion at relatively shallow depths within Uranus.

Magnetic field lines These lines are a way to show the structure of a magnetic field. A compass needle will always point along a field line. The lines are close together where the magnetic force is strong, and spread out where it is weak.

MAGNETIC FIELD A magnetic field is a region near a magnet where other magnets are affected. The Earth's magnetic field is probably caused by its molten iron-nickel core.

Magnetic field on Moon is not polarized; worthless for navigation 14 Fifteen liters of water ...

Magnetic Field A region of space in which magnetic forces may be detected or may affect the motion of an electrically charged particle.

magnetic field Field which accompanies any electric current or changing electric field, and governs the influence of magnetized objects on one another.

Magnetic Field. Much of the sun's magnetic field lies outside of sunspots. The pervasiveness of the sun's magnetic field adds complexity, diversity, and beauty to the outer atmosphere of the sun.

Magnetic field interactions between giant stars Aa and Ab are thought to energize the corona of the larger star (Aa), generating more x-rays than would be expected for a single star (more) ...

Magnetic field Jupiter has a magnetic field which, at the height of the cloud layer, is more than 10 times that of the Earth.

Magnetic field A magnetism field is a vector field which can exert a magnetic force on moving electric charges and on magnetic dipoles . When placed in a magnetic field, magnetic dipoles tend to align their axes parallel to the magnetic field....

Magnetic field lines would ordinarily repel each other, causing sunspots to disperse rapidly, but sunspot lifetime is about two weeks.

Magnetic Fields Investigation (MAG/ER) - Mario Acuna, Goddard Space Flight Center A magnetometer will be used to determine whether Mars has a magnetic field, and the strength and orientation of the field if one exists.

Magnetic Fields Magnetic Moment (a) A measure of the extent to which a physical system (e.g. an atom, or nucleus, or particle) behaves like a tiny magnet. It is generally measured in units of magnetons, i.e. e / 2mc.

Magnetic Field: Magnetism is produced in the Sun by the flow of electrically charged particles: ions and electrons.

Magnetic field- the field responsible for magnetic forces, now incorporated along with the electric field, into the electromagnetic field ...

Magnetic Field 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.

magnetic field The region surrounding an object which has a changing electric field. Most stars and planets have magnetic fields which will affect charged particles coming in contact with them.

Magnetic field: The region of "altered space" that will interact with the magnetic properties of a magnet. It is located mainly between the opposite poles of a magnet or in the energetic space about an electric charge in motion.

Magnetic Field Lines imaginary lines that indicate the strength and direction of a magnetic field. The orientation of the line and an arrow show the direction of the field. The lines are drawn closer together where the field is stronger.

magnetic field -- a representation of the means by which magnetic forces are transmitted from one body to another. magnetic lines of force -- fictitious lines used to visualize the orientation and strength of a magnetic field.

magnetic field A description of the strength of the magnetic force exerted by an object. Bar magnets have "di-polar" fields, as the force is exerted from the two ends of the bar.

magnetic field Field which accompanies any changing electric field and governs the influence of magnetized objects on one another. magnetic poles ...

Geomagnetic Field. The magnetic field observed in and around the Earth. The intensity of the magnetic field at the Earth's surface is approximately 0.32 gauss at the equator and 0.62 gauss at the north pole.

The magnetic field is three-dimensional. Generates and sustains magnetic fields that are turbulent. The Alfvén waves are vibrations in the magnetic field lines. The waves propagate along the field lines. This force is the new dynamic element.

The magnetic field is well-ordered in many jets, as shown by polarization measurements. Synchrotron radiation can be very highly polarized (50%) if the field is globally ordered, and some sources apprach this level.

Uranus' magnetic field is odd in that it is not centered on the center of the planet and is tilted almost 60 degrees with respect to the axis of rotation. It is probably generated by motion at relatively shallow depths within Uranus.

The sun's magnetic field has a surface strength of 2 gauss. It reverses with a period of 22 y (twice the period of the sunspot cycle).

Jupiter's magnetic field is large, complex, and intense. It is thought to arise from electrical currents in the rapidly spinning metallic hydrogen interior.

A: , has a magnetic field (and therefore, probably a molten iron core). Q: What affects the gravity on a planet? (thanx) from julia.m, bedford(town), bedfordshire, united kingdom; April 22, 2001 ...

The intense magnetic field and plasma that are believed to surround a neutron star provide an effective source of radio waves.

Figure: The magnetic field of a neutron star produces beams of radiation which emerge along the magnetic axis. This Lighthouse effect causes periodic flashes. The pole more aligned with our line of sight produces stronger pulses.

Detection of magnetic fields by spacecraft has made it possible to infer the deeper structures of planets, too.

Onset--The Sun's magnetic field lines start to break and reconnect, releasing energy and causing the prominence to erupt more rapidly Main--The field lines continue to reconnect and the field closes down ...

An electromagnetic device that transmits the direction of a magnetic field from one coil to another, used to transmit measurements electrically from a point of measurement to an indicator in a remote-indicating system.

Penning discharge A direct-current discharge where electrons are forced to oscillate between two opposed cathodes and are restrained from going to the surrounding anode by the presence of a magnetic field.

Two points on the earth's surface, at opposite ends of a geomagnetic field line. CONTINUUM STORM (CTM). General term for solar noise lasting for hours and sometimes days. COORDINATED UNIVERSAL TIME.

Electromagnetic Radiation Radiation that travels through vacuous space at the speed of light and propagates by the interplay of oscillating electric and magnetic fields. This radiation has a wavelength and a frequency.

The constellation Canes Venatici (the Hunting Dogs) is best known for its luminary, Cor Caroli (Alpha-2 Canum Venaticorum), a class A magnetic star with a magnetic field 1500 times the strength of the Sun's. Such stars are not all that rare.

A type of magnetic cataclysmic binary that consists of a closely-orbiting dwarf M star or K star and a super-strong magnetic white dwarf primary, in which the magnetic field of the primary not only prevents the formation of an accretion disk but also ...

We speak of light as a wave phenomenon; if you like, think of light as waves of electric and magnetic field moving through space.

Mysterious Io, orbiting in Jupiter's intense electromagnetic field, was most remarkable. Its red, orange, and yellow surface is full of many spectacular erupting volcanoes.

The ionopause is a cavity without a magnetic field that contains only cometary ions and is separated from the solar wind by a sharp discontinuity. Halley's ionopause lies about 4,000 to 5,000 kilometres from the nucleus of the comet.

Over the past two decades, a series of spacecraft (Voyager, Pioneer etc.) flew by Saturn, giving scientists their first close-up looks of the planet, and revealing a magnetic field 1,000 times stronger than Earth's.

It is because of this that the magnetic field of Saturn is much weaker than the magnetic field of Jupiter. This is due to the fact that the magnetic field of Jupiter is caused by the swirling of the metallic hydrogen in it's journey around the planet.

In addition to the electromagnetic field these anomalies emited level 9 gravimetric distortions, through subspace to the space around them, creating severe turbulence.

They are caused by disturbances in the sun's magnetic field which make the sunspot about 2700°F (1500°C) cooler than the surrounding area. Sunspots occur where the sun's magnetic field loops up out of the solar surface.

Io lies within a dangerous part of Jupiter's magnetic field. The radiation found in this area is a thousand times stronger than what is needed to kill a Human.

See also: Field, Earth, Sun, Solar, Light