Sentences with phrase «of a magnetic field produced»

The jets could be the result of a magnetic field produced by charged ions swirling around in the gas but it wasn't clear whether the field was strong enough.

To find out whether the jets could be the result of a magnetic field produced by charged ions swirling around in the gas, Eatough and colleagues looked at a nearby pulsar.

Not exact matches

First experiments probing the collision of parallel magnetic fields using laser - produced plasmas

In addition, because part of the inertia of a particle is due to the electromagnetic field around it, as you speed up such a particle the electric field produces a magnetic field, the changing magnetic field produces a back EMF, and this whole reaction of the field produces a resistance to acceleration.

These form in areas where magnetic field lines converge, producing cooler regions of «only» about 3,000 — 4,000 degrees Celsius (by contrast with their surroundings of 5,000 degrees Celsius or higher).

A solenoid is basically a cylindrical electromagnet that generates a very uniform magnetic field inside the cylinder; the uniform field makes it easier to calculate the momentum of particles produced from collisions.

These include the overall validity of the radical - pair mechanism, whether birds might have evolved to be able to detect minute magnetic changes and have thus become susceptible to human - produced radio noise as a side - effect, or even whether applied electromagnetic fields might be affecting a different behavior — such as motivation — altogether.

The trick was performed using a strong magnetic field that distorts the movement of electrons in water molecules, which in turn produces a magnetic field opposing the one applied.

Read about a team studying how the sun interacts with Earth's magnetic field and the particles trapped in it, and how this type of interaction produces the northern and southern lights.

At the center of the room sat a one - ton, six - foot - tall machine resembling a huge hair dryer that contained scanners capable of recording the minute magnetic fields produced by the firing of neurons.

The result provides a measure of the magnetism in the space between galaxies, an essential step in determining how cosmic magnetic fields are produced.

Under most reaction conditions with most molecules, the Earth's magnetic field is far too weak — roughly 200 times feebler than a refrigerator magnet — to have any impact on the amount of products produced.

Fryer says that if more of the jets» energy comes in magnetic fields, they should prompt electrons to produce more radiation, perhaps accounting for the unexpected brightness of short bursts.

In Vader's device, an electrically - pulsed magnetic field permeates liquid metal in an ejection chamber and creates circulating electrical currents that interact with the magnetic field to produce a pressure that squeezes a droplet out of the ejector nozzle.

However, Ganymede's core of molten iron and sulfur generates a magnetic field of its own, masking the subtle signatures that an ocean might produce.

Interactions between the magnetic fields of Earth and the sun produce the beautiful polar phenomena known as auroras.

18 Magnetic Resonance Imaging (MRI) machines generate a field 60,000 times as intense as the earth's to vibrate the hydrogen atoms in your body; in response, the atoms emit radio waves that are analyzed to produce a map of your insides.

Magnetic fields slow these electrons, producing a steady stream of gamma rays and other light.

Specifically, the team found that the angrites» remnant magnetization could have been produced by an extremely weak magnetic field of no more than 0.6 microteslas, 4.563 billion years ago, or, about 4 million years after the start of the solar system.

Like many planets and most stars, Earth produces its own magnetic field by dynamo action, i.e. because of the motion of an electrically conducting fluid - in this case, a mixture of molten iron and nickel.

The discovery of this new component of the magnetic field may explain why in the case of Venus, Earth's «twin» planet, the liquid metal core does not produce a magnetic field.

Planetary scientists think magnetic fields are produced by the churning of a planet's molten iron core.

The way reconnection disturbs terrestrial power grids is complex but, in essence, the process mimics what happens in electric generators, where a fluctuating magnetic field (usually a moving magnet) produces a current in a coil of wire, says Adam Szabo, director of NASA's Heliophysics Laboratory.

The NRC panel, chaired by neurobiologist Charles Stevens of the Salk Institute in La Jolla, California, looked at more than 500 human, animal, and cellular studies on EMFs and found «no conclusive and consistent evidence... that exposures to residential electric and magnetic fields produce cancer, adverse neurobehavioral effects, or reproductive and developmental effects.

In a bid to determine the regions of the brain concerned with these memorization difficulties, the researchers conducted magneto - encephalographs (a technique that allows very weak magnetic fields produced by neural activity to be measured at the surface of the head) on a group of amusics while they were performing a musical task.

The rotations suggested that, at the event horizon, the field is hundreds of times stronger than Earth's magnetic field, and strong enough to produce the jets that slow the hole's chomping.

Understanding the two phenomena, which are both produced by interactions between charged particles and the planet's magnetic field, may help to explain the variations in the timing of the radio pulses and to shed light on Saturn's geomagnetic workings.

Electrons begin moving in circles in response to the magnetic field, as well as back and forth in reaction to the electric field — and the moving charges produce fields of their own.

The UVIS images, which are also being analyzed by team associate Aikaterini Radioti at the University of Liege, Belgium, also suggest that one way the bright auroral storms may be produced is by the formation of new connections between magnetic field lines.

It's the result of a particular magnetic property of materials — the magnetic moment, a tiny magnetic field produced by electrons orbiting the nucleus of an atom.

Because of the high magnetic field required to produce the magnetoresistance effect, Kobayashi says, the material isn't ready to be used in data storage devices.

Magnets are a good example of this: the electrons in magnets align themselves in a preferred direction of spin inside the material, and it is this that produces the magnetic field.

Kensuke Kobayashi (Professor, Graduate School of Science, Osaka University) and Sadashige Matsuo (Assistant Professor, Graduate School of Engineering, The University of Tokyo), in cooperation with research groups led by Teruo Ono (Professor, Institute for Chemical Research, Kyoto University) and Kazuhito Tsukagoshi (Research Fellow, International Center for Materials Nanoarchitectonics, National Institute for Materials Science), produced graphene samples capable of forming p - n junctions by combining gate electrodes and performed precise measurements of current - fluctuation («shot noise») in the graphene p - n junction in the QH regime in the strong magnetic fields and at low temperatures.

Either wobbly rotation produced by Earth's gravitational tug or asteroids smacking into the lunar surface may have triggered enough turbulence in the moon's molten core to generate a long - lasting magnetic field, report two teams of scientists in the Nov. 10 Nature.

When a metal is in the presence of alternating magnetic fields (AMFs), electrical currents are produced on the metal, which generate heat.

Much of the savings will be in the superconducting cables that are wound into enormous magnetic coils to produce the powerful fields that hold the reactor's superhot plasma in place.

Recent observations of the galaxy MCG -6-30-15 suggest thatthe spinning of its central black hole inside a huge magnetic field produces power just like an electric generator.

«These include different types of MRI scans, which use strong magnetic fields and radio waves to produce detailed images of the inside of the brain, and Positron Emission Tomography (PET) scans, which use a small amount of a radioactive drug, or tracer, to test how tissues in the brain are actually functioning.

That confirmed it was definitely coming from the crust, and was not the result of the core's magnetic field interacting with charged particles from the sun, which would have produced a consistent signal at higher altitudes.

Magnetic resonance imaging (MRI) uses a magnetic field and radio waves to produce a detailed image of tissues within tMagnetic resonance imaging (MRI) uses a magnetic field and radio waves to produce a detailed image of tissues within tmagnetic field and radio waves to produce a detailed image of tissues within the body.

This sheath travels to the end of the inner electrode, where the magnetic fields produced by the currents pinch and twist the plasma into a tiny, dense ball.

In their study, the ICFO team cooled down a cloud of atoms to a few micro-degrees Kelvin, applied a magnetic field to produce spin motion as in MRI, and illuminated the cloud with a laser to measure the orientation of the atomic spins.

The new results come from Hubble's observations of Ganymede's magnetic field, which produces two auroral belts (pictured) that can be detected in the ultraviolet.

They made a hose from a cylinder of superconducting material filled with a highly magnetic cobalt - iron alloy, then ran a current through a coil at one end to produce a field (arxiv.org/abs/1304.6300).

The most popular explanation of how jets form is that the fast - spinning accretion disk, which contains charged particles, will produce a powerful magnetic field that is in contact with the black hole.

The magnetic field either pushes the positive charges toward the top edge of the strip and the negative charges toward the bottom edge, or if the current is produced by negatively charged carriers, sends them in the opposite directions.

Another team led by William Livingston, also of the National Solar Observatory, has observed magnetic fields necessary to produce sunspots steadily weakening for the past 13 years.

Still, he says, the possibility of such a field leads to many interesting lines of inquiry, including questions about how planets produce magnetic fields.

A team of researchers has devised perhaps the world's most intricate coin toss, a device utilizing vacuum chambers, magnetic fields, lasers and microwave pulses to produce a random string of 0s and 1s — each representing heads or tails, essentially.

Gow's method of investigating how the human brain perceives and distinguishes among elements of spoken language combines electroencephalography (EEG), which records electrical brain activity; magnetoencephalograohy (MEG), which the measures subtle magnetic fields produced by brain activity, and magnetic resonance imaging (MRI), which reveals brain structure.