News tagged with electric current
Navy to begin tests on electromagnetic railgun prototype launcher
The Office of Naval Research (ONR)'s Electromagnetic (EM) Railgun program will take an important step forward in the coming weeks when the first industry railgun prototype launcher is tested at a facility ...
Feb 06, 2012 |
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Magnetic random-access memory based on new spin transfer technology achieves higher storage density
Solid-state memory is seeing an increase in demand due to the emergence of portable devices such as tablet computers and smart phones. Spin-transfer torque magnetoresistive random-access memory (STT-MRAM) ...
Feb 02, 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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Scientists record electrical currents that control male fertility
Performance anxiety? Not for this human sperm.
Dec 29, 2011 |
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Electricity sparks new life into Indonesia's corals
Cyanide fishing and rising water temperatures had decimated corals off Bali until a diver inspired by a German scientist's pioneering work on organic architecture helped develop a project now replicated worldwide.
Dec 26, 2011 |
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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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Future is bright for ONR's lightweight, sun-powered generator
The Department of the Navy continues its move toward renewable energy with an Office of Naval Research (ONR)-funded solar generator that recently entered full production, with several systems already in the ...
Technology / Energy & Green Tech
Dec 21, 2011 |
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Magnetic stimulation of brain may help some stroke patients recover
Imagine waking up and being unable to see or recognize anything on the left side of your body. This condition, called hemispatial neglect, is common after a stroke that occurs on the right side of the brain. The current treatment ...
Medicine & Health / Neuroscience
Dec 14, 2011 |
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Tiny electric currents may aid stroke recovery
(Medical Xpress) -- Tiny electric currents applied across regions of the brain can improve hand movements in recovering stroke patients for a short period, an Oxford University study has demonstrated.
Medicine & Health / Neuroscience
Dec 08, 2011 |
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Voltage increases up to 25% observed in closely packed nanowires
(PhysOrg.com) -- Unexpected voltage increases of up to 25 percent in two barely separated nanowires have been observed at Sandia National Laboratories.
Dec 07, 2011 |
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First proof of single atomic layer material with zero electrical resistance
A research group at the NIMS International Center for Materials Nanoarchitectonics (MANA) has proved that the electrical resistance of a metal single atomic layer on a silicon surface becomes zero by superconductivity.
Nov 24, 2011 |
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Improved method of electrical stimulation could help treat damaged nerves
Functional electrical stimulation (FES) was developed to help return lost function to patients with upper and lower extremity injuries and spinal cord injuries, among other applications. However, the devices, which work by ...
Nov 21, 2011 |
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Montpellier team turns tables on robot-human interactions (w/ video)
(PhysOrg.com) -- Robots have entered a newer phase of serving, not obeying. for use in medical settings. Chapter one in robotics history encouraged a perception of clever little machines skating around with ...
Nov 18, 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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Electric current
Electric current is the rate of flow of electric charge. The electric charge that flows is carried by, for example, mobile electrons in a conductor, ions in an electrolyte or both in a plasma.
The SI unit of electric current intensity is the ampere. Electric current is measured using an ammeter.
For more information about Electric current, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
