News tagged with magnetic field

Physicists 'record' magnetic breakthrough

An international team of scientists has demonstrated a revolutionary new way of magnetic recording which will allow information to be processed hundreds of times faster than by current hard drive technology.

Physics / General Physics

created Feb 07, 2012 | popularity 4.5 / 5 (46) | comments 15 | with audio podcast

Nuclear fusion simulation shows high-gain energy output

(PhysOrg.com) -- High-gain nuclear fusion could be achieved in a preheated cylindrical container immersed in strong magnetic fields, according to a series of computer simulations performed at Sandia National ...

Physics / General Physics

created Mar 20, 2012 | popularity 4.8 / 5 (43) | comments 120 | with audio podcast

Voyager 1 hits new region at solar system edge

(PhysOrg.com) -- NASA's Voyager 1 spacecraft has entered a new region between our solar system and interstellar space. Data obtained from Voyager over the last year reveal this new region to be a kind of cosmic ...

Space & Earth / Space Exploration

created Dec 05, 2011 | popularity 4.8 / 5 (37) | comments 118 | with audio podcast

A big surprise from the edge of the solar system: magnetic bubbles (w/ video)

(PhysOrg.com) -- NASA's Voyager probes are truly going where no one has gone before. Gliding silently toward the stars, 9 billion miles from Earth, they are beaming back news from the most distant, unexplored ...

Space & Earth / Space Exploration

created Jun 09, 2011 | popularity 4.9 / 5 (35) | comments 25 | with audio podcast

CERN scientists confine antihydrogen atoms for 1000 seconds

(PhysOrg.com) -- Seventeen minutes may not seem like much, but to physicists working on the Antihydrogen Laser Physics Apparatus (ALPHA) project at the CERN physics complex near Geneva, 1000 seconds is nearly ...

Physics / General Physics

created May 04, 2011 | popularity 4.6 / 5 (34) | comments 39 | with audio podcast report

Physicists unveil unexpected properties in superconducting material

In 2008, an international team of scientists studying an exotic new superconductor based on the element ytterbium reported that it displays unusual properties that could change how scientists understand and ...

Physics / Superconductivity

created Jan 20, 2011 | popularity 5 / 5 (30) | comments 0 | with audio podcast

Physicists unveil a theory for a new kind of superconductivity

(PhysOrg.com) -- In this 100th anniversary year of the discovery of superconductivity, physicists at the University of Massachusetts Amherst and Sweden’s Royal Institute of Technology have published a ...

Physics / Superconductivity

created Oct 24, 2011 | popularity 4.7 / 5 (31) | comments 7 | with audio podcast

Researchers find possible evidence of Majorana fermions

(Phys.org) -- Researchers working out of Delft University of Technology in the Netherlands have constructed a device that appears to offer some evidence of the existence of Majorana fermions; the elusive particles ...

Physics / General Physics

created Apr 13, 2012 | popularity 4.8 / 5 (25) | comments 4 | with audio podcast report

Nuclear magnetic resonance with no magnets

Nuclear magnetic resonance (NMR) is a powerful tool for chemical analysis and, in the form of magnetic resonance imaging (MRI), an indispensable technique for medical diagnosis. But its uses have been limited ...

Physics / General Physics

created May 18, 2011 | popularity 4.7 / 5 (25) | comments 4 | with audio podcast

Wireless power could revolutionize highway transportation, researchers say

A Stanford University research team has designed a high-efficiency charging system that uses magnetic fields to wirelessly transmit large electric currents between metal coils placed several feet apart. The ...

Technology / Energy & Green Tech

created Feb 01, 2012 | popularity 4.3 / 5 (27) | comments 66 | with audio podcast

Curved carbon for electronics of the future

A new scientific discovery could have profound implications for nanoelectronic components. Researchers from the Nano-Science Center at the Niels Bohr Institute, University of Copenhagen, in collaboration with ...

Physics / General Physics

created Jan 23, 2011 | popularity 5 / 5 (23) | comments 12 | with audio podcast

What keeps the Earth cooking?

What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes ...

Physics / General Physics

created Jul 17, 2011 | popularity 4.6 / 5 (24) | comments 50 | with audio podcast

Neutron star blows away models for thermonuclear explosions

(PhysOrg.com) -- Amsterdam astronomers have discovered a neutron star that confounds existing models for thermonuclear explosions in such extreme objects. In the case of the accreting pulsar IGR J17480-2446, ...

Space & Earth / Astronomy

created Sep 14, 2011 | popularity 4.8 / 5 (23) | comments 74 | with audio podcast

Look ma, no hands: Engineers invent a magnetic fluid pump with no moving parts

(PhysOrg.com) -- Used in Hollywood and the advertising industry to create exotic special effects, ferrofluids are seemingly magical materials that are both liquid and magnetic at once. In a study published ...

Physics / General Physics

created Sep 16, 2011 | popularity 5 / 5 (22) | comments 12 | with audio podcast

Magnetic fields can send particles to infinity

Researchers from the Complutense University of Madrid (UCM, Spain) have mathematically shown that particles charged in a magnetic field can escape into infinity without ever stopping. One of the conditions ...

Other Sciences / Mathematics

created Apr 17, 2012 | popularity 4.1 / 5 (26) | comments 42 | with audio podcast

Magnetic field

Magnetic fields surround magnetic materials and electric currents and are detected by the force they exert on other magnetic materials and moving electric charges. The magnetic field, at a given point, is specified by both a direction and a magnitude (or strength); as such it is a vector field.

In special relativity, the electric field and magnetic field are two interrelated aspects of a single object, called the electromagnetic field. A pure electric field in one reference frame is observed as a combination of both an electric field and a magnetic field in a moving reference frame.

For more information about Magnetic field, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: earth , solar wind , electrons , magnetic , nasa