News tagged with magnetic field
Particles magnetically 'click' to form superstructures
(Phys.org) -- Geomag, the popular children's toy, contains small metal spheres that can be magnetically connected with a click to build a variety of towers, bridges, and sculptures. In a new study, scientists ...
Apr 10, 2012 |
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Researchers engineer molecular magnets to act as long-lived qubits
(PhysOrg.com) -- Some physicists today are investigating the possibility of using molecular magnets as information storage units in future quantum computers. Molecular magnets are molecules whose magnetic ...
Mar 21, 2012 |
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Physicists discover 'magnetotoroidic effect'
(PhysOrg.com) -- For many years, scientists have known about the magnetoelectric effect, in which an electric field can induce and control a magnetic field, and vice versa. In this effect, the electric field has always been ...
Sep 26, 2011 |
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Enceladus plume is a new kind of plasma laboratory
(Phys.org) -- Recent findings from NASA's Cassini mission reveal that Saturn's geyser moon Enceladus provides a special laboratory for watching unusual behavior of plasma, or hot ionized gas. In these recent ...
Space & Earth / Space Exploration
May 31, 2012 |
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Ghostly gamma-ray beams blast from Milky Way's center
(Phys.org) -- As galaxies go, our Milky Way is pretty quiet. Active galaxies have cores that glow brightly, powered by supermassive black holes swallowing material, and often spit twin jets in opposite directions. ...
May 29, 2012 |
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An unlikely route to ferroelectricity
(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain ...
May 18, 2012 |
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More light shed on how pigeons navigate
(Phys.org) -- Pigeons are renowned for their ability to find their way home from a release point hundreds of miles away, but scientists have never fully understood how they are able to achieve the feat. Now ...
Apr 27, 2012 |
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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 ...
Apr 13, 2012 |
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SDO and STEREO spacecrafts spot something new on the Sun (w/ video)
(Phys.org) -- One day in the fall of 2011, Neil Sheeley, a solar scientist at the Naval Research Laboratory in Washington, D.C., did what he always does – look through the daily images of the sun from ...
Space & Earth / Space Exploration
Apr 09, 2012 |
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Honeycombs of magnets could lead to new type of computer processing
Scientists have taken an important step forward in developing a new material using nano-sized magnets that could ultimately lead to new types of electronic devices, with greater capacity than is currently ...
Mar 30, 2012 |
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Magnetic cloak: Physicists create device invisible to magnetic fields
Autonomous University of Barcelona researchers, in collaboration with an experimental group from the Academy of Sciences of Slovakia, have created a cylinder which hides contents and makes them invisible to ...
Mar 22, 2012 |
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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 ...
Mar 20, 2012 |
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Nokia feels out haptic feedback tattoo system for phones
(PhysOrg.com) -- Nokia, the Finnish smartphone maker, has filed a patent for a haptic communication system where tattoos will send you vibrations so you know who is calling. Your ferromagnetic ink tattoo would ...
Technology / Hi Tech & Innovation
Mar 20, 2012 |
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A traffic jam of quantum particles
(PhysOrg.com) -- German scientists discover surprising transport phenomena in ultracold quantum many body systems.
Mar 05, 2012 |
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Exotic new matter expected in ultracold atoms
(PhysOrg.com) -- Just as NASA engineers test new rocket designs in computer studies before committing themselves to full prototypes, so physicists will often model matter under various circumstances to see whether something ...
Feb 29, 2012 |
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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.
