Electric charge

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Electric charge is a fundamental conserved property of some subatomic particles, which determines their electromagnetic interaction. Electrically charged matter is influenced by, and produces, electromagnetic fields. The interaction between a moving charge and an electromagnetic field is the source of the electromagnetic force, which is one of the four fundamental forces.

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News tagged with electrical charge

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New study confirms exotic electric properties of graphene

New study confirms exotic electric properties of graphene

Nanotechnology / Nanomaterials

created Nov 17, 2009 | popularity 4.8 / 5 (23) | comments 1

(PhysOrg.com) -- First, it was the soccer-ball-shaped molecules dubbed buckyballs. Then it was the cylindrically shaped nanotubes. Now, the hottest new material in physics and nanotechnology is graphene: ...


JQI researchers create entangled photons from quantum dots

Physics / Quantum Physics

created Nov 18, 2009 | popularity 4.3 / 5 (8) | comments 1

To exploit the quantum world to the fullest, a key commodity is entanglement—the spooky, distance-defying link that can form between objects such as atoms even when they are completely shielded from one another. Now, physicists ...


'No muss, no fuss' miniaturized analysis for complex samples developed

'No muss, no fuss' miniaturized analysis for complex samples developed

Chemistry / Analytical Chemistry

created Nov 18, 2009 | popularity 4.7 / 5 (3) | comments 0

The goal of an integrated, miniaturized laboratory analysis system, also known as a "lab-on-a-chip," is simple: sample in, answer out. However, researchers wanting to use these microfluidic devices to analyze ...





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At Stanford, nanotubes + ink + paper = equal instant battery (w/ Video)

At Stanford, nanotubes + ink + paper = equal instant battery (w/ Video)

Nanotechnology / Nanomaterials

created 21 hours ago | popularity 4.9 / 5 (24) | comments 2

(PhysOrg.com) -- Stanford scientists are harnessing nanotechnology to quickly produce ultra-lightweight, bendable batteries and supercapacitors in the form of everyday paper.


Researchers put a new spin on atomic musical chairs

Researchers put a new spin on atomic musical chairs

Nanotechnology / Nanophysics

created Dec 02, 2009 | popularity 5 / 5 (4) | comments 0

Researchers from the National Institute of Standards and Technology and the Naval Research Laboratory have developed a new way to introduce magnetic impurities in a semiconductor crystal by prodding it with ...


Spin polarization achieved in room temperature silicon

Spin polarization achieved in room temperature silicon

Physics / General Physics

created Nov 27, 2009 | popularity 4.8 / 5 (19) | comments 0

(PhysOrg.com) -- A group in The Netherlands has achieved a first: injection of spin-polarized electrons in silicon at room temperature. This has previously been observed only at extremely low temperatures, ...


The court will now call its expert witness: the brain

The court will now call its expert witness: the brain

Medicine & Health / Neuroscience

created Nov 20, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Will advances in neuroscience make the justice system more accurate and unbiased? Or could brain-based testing wrongly condemn some and trample the civil liberties of others? The new field ...


Nanotube defects equal better energy and storage systems

Nanotube defects equal better energy and storage systems

Nanotechnology / Nanomaterials

created Nov 19, 2009 | popularity 4.5 / 5 (11) | comments 2

(PhysOrg.com) -- Most people would like to be able to charge their cell phones and other personal electronics quickly and not too often. A recent discovery made by UC San Diego engineers could lead to carbon ...


Battery Research Aims To Store Renewable Energy

Battery Research Aims To Store Renewable Energy

Technology / Energy

created Nov 19, 2009 | popularity 4.1 / 5 (13) | comments 6

The biggest chemical battery in the United States is located near Interstate 90 in the small town of Luverne, Minn. The 80 ton device -- the size of two tractor-trailers stacked on top of each other -- stores ...


Researchers customizing electric cars for cost-effective urban commuting

Technology / Energy

created Nov 16, 2009 | popularity 3.3 / 5 (7) | comments 1

Researchers at Carnegie Mellon University's Robotics Institute have converted a 2001 Scion xB into an electric commuter vehicle that will serve as a test bed for a new community-based approach to electric vehicle design, ...


The Future in Two Words: Ionic Liquids

The Future in Two Words: Ionic Liquids

Chemistry / Materials Science

created Nov 13, 2009 | popularity 4.4 / 5 (8) | comments 0

(PhysOrg.com) -- Ionic liquids are molecular solutions that have a wide range of potential applications, including next-generation solar cells, hydrogen fuel cells and lithium batteries.


Researchers take the lead out of piezoelectrics

Researchers take the lead out of piezoelectrics

Physics / Condensed Matter

created Nov 13, 2009 | popularity 3 / 5 (2) | comments 0

There is good news for the global effort to reduce the amount of lead in the environment and for the growing array of technologies that rely upon the piezoelectric effect. A lead-free alternative to the current ...


Research helps overcome barrier for organic electronics

Research helps overcome barrier for organic electronics

Nanotechnology / Nanomaterials

created Nov 10, 2009 | popularity 4.9 / 5 (10) | comments 0

(PhysOrg.com) -- Electronic devices can't work well unless all of the transistors, or switches, within them allow electrical current to flow easily when they are turned on. A team of engineers has determined ...



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