News tagged with electrical field
Low-cost instrument developed by students could aid weather research
On a recent blustery afternoon, scientists gathered on a rooftop at the Georgia Tech Research Institute (GTRI) to observe two atmospheric electric field-mill devices monitor the buildup of electrical charge ...
Feb 08, 2012 |
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Optics get magnetic powers
For decades, scientists have studied a class of materials called ‘multiferroics’ in which static electric and magnetic structures are coupled to each other. This allows capabilities such as controlling ...
Feb 03, 2012 |
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Physics team calculates that graphene disks could be complete optical absorbers
(PhysOrg.com) -- In optical devices designed and used to collect light, there has always been a loss of light due to reflection, now, new research by a team of physicists from Spain and England has found, ...
Feb 01, 2012 |
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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
Feb 01, 2012 |
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Ferroelectric switching discovered for first time in soft biological tissue
The heart's inner workings are mysterious, perhaps even more so with a new finding. Engineers at the University of Washington have discovered an electrical property in arteries not seen before in mammalian ...
Jan 30, 2012 |
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Physicists develop nano-level sound detector
(PhysOrg.com) -- For a couple of decades now, physicists have known that if a very small laser beam is pointed at a microscopic particle, it could be held in place due to the very small electrical field that ...
Jan 12, 2012 |
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Researchers build a probe capable of capturing the motion of electrons in a nanoparticle
(PhysOrg.com) -- Scientists have known for quite some time that when light strikes objects, electrons are excited causing a tiny bit of oscillation to occur that results in the creation of an electric field. They also know ...
Jan 06, 2012 |
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The onset of electrical resistance
Researchers at the Max-Born-Institute, Berlin, Germany, observed the extremely fast onset of electrical resistance in a semiconductor by following electron motions in real-time.
Dec 21, 2011 |
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A new kind of metal in the deep Earth
(PhysOrg.com) -- The crushing pressures and intense temperatures in Earth's deep interior squeeze atoms and electrons so closely together that they interact very differently. With depth materials change. New ...
Dec 19, 2011 |
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Patient receives first prescription for FDA-approved brain tumor treatment
(Medical Xpress) -- The University of Illinois Hospital is the first center in North America to prescribe a new FDA-approved treatment for patients with the most common and aggressive type of brain tumor, glioblastoma multiforme, ...
Dec 05, 2011 |
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Reliable nuclear device to heat, power Mars Science Lab
NASA's Mars Science Laboratory mission, which is scheduled to launch this week, has the potential to be the most productive Mars surface mission in history. That's due in part to its nuclear heat and power ...
Space & Earth / Space Exploration
Nov 21, 2011 |
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Making liquid crystals stand tall
Most liquid-crystalline displays contain rod-like molecules that quickly switch from one orientation to another when subjected to electric fields. This movement creates a shutter effect that turns light on ...
Nov 21, 2011 |
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Magnetic treatment improves stroke patients' ability to communicate
(Medical Xpress) -- Magnetic stimulation of the brain could help improve language skills of stroke survivors with aphasia, according to research by The University of Queensland.
Medicine & Health / Neuroscience
Nov 15, 2011 |
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New FASTSAT discoveries paint detailed view of region near Earth
Space around Earth is anything but a barren vacuum. The area seethes with electric and magnetic fields that change constantly. Charged particles flow through, moving energy around, creating electric currents, ...
Space & Earth / Space Exploration
Nov 14, 2011 |
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96 percent of vertebrates -- including humans -- descended from ancestor with sixth sense
(PhysOrg.com) -- People experience the world through five senses but sharks, paddlefishes and certain other aquatic vertebrates have a sixth sense: They can detect weak electrical fields in the water and use ...
Oct 11, 2011 |
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