In this case, the magnetic field in the material is weakened by the induced magnetization.

By increasing an external magnetic field, the gap between the formula_2 and formula_3 energy states is widened until it matches the energy of the microwaves, as represented by the double arrow in the diagram above.

This causes compression, heating, and a change in the magnetic field.

Its strength at the equator 0.2 gauss (20 µT) is approximately one twentieth of that of the field around Jupiter and slightly weaker than Earth's magnetic field.

In addition to moving perpendicular to the Earth's magnetic field, some magnetospheric plasma travels down along the Earth's magnetic field lines, gains additional energy and loses it to the atmosphere in the auroral zones.

Each curtain consists of many parallel rays, each lined up with the local direction of the magnetic field, consistent with auroras being shaped by Earth's magnetic field.

The convergence of magnetic field lines towards the Earth that creates a magnetic mirror turns back many of the downward flowing electrons as the field strength increases.

But what happens, as this occurs, is that we lose our magnetic field around the Earth over the period of about 100 years, and that means that all these cosmic rays and particles that are to come streaming at us from the sun, that this field protects us from, are well, basically, we're gonna fry.

It is the capability of the vacuum to permit the Electric field lines.

Earth's magnetic field helps to prevent this, as, normally, the solar wind would greatly enhance the escape of hydrogen.

As already mentioned, it happens most readily when the interplanetary field is directed southward, in a similar direction to the geomagnetic field in the inner regions of both the north magnetic pole and south magnetic pole.

Variations in the Sun's magnetic field are carried outward by the solar wind and can produce magnetic storms in the Earth's own magnetosphere.

Maxwell developed a set of equations that could unambiguously describe the interrelationship between electric field, magnetic field, electric charge, and electric current.

The cusps of the magnetosphere, separating geomagnetic field lines that close through the Earth from those that close remotely allow a small amount of solar wind to directly reach the top of the atmosphere, producing an auroral glow.

Occasionally the resulting modification of the Earth's magnetic field can be so strong that it produces auroras visible at middle latitudes, on field lines much closer to the equator than those of the auroral zone.

And then what you do is, you start out with electricity, turn it into magnetic field, take that magnetic field, turn it back into electricity, and then you can use it.

The interplanetary magnetic field is much stronger than the dipole component of the solar magnetic field.

As a result, the solar wind moves magnetic flux (tubes of magnetic field lines, locked together with their resident plasma) from the day side of Earth to the magnetotail, widening the obstacle it presents to the solar wind flow and constricting the tail on the night side.

As the Earth orbits throughout a year, it experiences an interplanetary magnetic field (IMF) from different latitudes of the Sun, which is tilted at 8 degrees.

Geospace extends from Earth's atmosphere to the outer reaches of Earth's magnetic field, whereupon it gives way to the solar wind of interplanetary space.

The Mark III and Mark IV used magnetic drum memory and the Mark IV also had magnetic core memory.

The stable orbit for the electrons satisfies formula_1where formula_2 is the flux within the area enclosed by the electron orbit, formula_3 is the radius of the electron orbit, and formula_4 is the magnetic field at formula_3.

On the dayside of Earth, the magnetic field is significantly compressed by the solar wind to a distance of approximately .

Electrons mainly responsible for diffuse and pulsating auroras have, in contrast, a smoothly falling energy distribution, and an angular (pitch angle) distribution favouring directions perpendicular to the local magnetic field.

The width of the magnetosphere abreast of Earth, is typically 190,000 km (30 Re), and on the night side a long magnetotail of stretched field lines extends to great distances ( 200 Re).

In the case of a machine with field coils, a current must flow in the coils to generate the field, otherwise no power is transferred to or from the rotor.

Other mechanisms have also been proposed, in particular, Alfvén waves, wave modes involving the magnetic field first noted by Hannes Alfvén (1942), which have been observed in the laboratory and in space.

This is magnetic resonance imaging MRI.

Solid state compasses Small compasses found in clocks, mobile phones, and other electronic devices are solid state compasses, usually built out of two or three magnetic field sensors that provide data for a microprocessor.

Hypnotic science was also used in the nineteenth century to distinguish the scientific study of hypnotism from witchcraft or religious transcendentalism.

The interaction with virtual particles also explains the small (about 0.1 ) deviation of the intrinsic magnetic moment of the electron from the Bohr magneton (the anomalous magnetic moment).

But what we saw this is an MRI image.

The solar wind reaches Earth with a velocity typically around 400 km s, a density of around 5 ions cm3 and a magnetic field intensity of around 2 5 nT (for comparison, Earth's surface field is typically 30,000 50,000 nT).

In comparison, the magnetic field of Earth is roughly as strong at either pole, and its magnetic equator is roughly parallel with its geographical equator.

Audio recording Magnetic tape was invented for recording sound by Fritz Pfleumer in 1928 in Germany, based on the invention of magnetic wire recording by Valdemar Poulsen in 1898.

And we heard a little bit about functional MRI.

This is the main method that I use. This is called functional MRI.

The solar dynamo is the physical process that generates the Sun's magnetic field.

We're going to do it non invasively using MRI.

The flow pattern of magnetospheric plasma is mainly from the magnetotail toward the Earth, around the Earth and back into the solar wind through the magnetopause on the day side.

This is an MRI MRA MRV, a volumetric MRI.

Some species of ant are able to use the Earth's magnetic field for navigation.

This point is distinct from the Earth's North Magnetic Pole.

He had received physiotherapy treatment and an MRI examination of his back.

It may also identify widening of the mediastinum suggestive of thymoma, but computed tomography or magnetic resonance imaging (MRI) are more sensitive ways to identify thymomas and are generally done for this reason.