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 ...





Search results for electrical charge


Nanotube defects equal better energy and storage systems

Nanotube defects equal better energy and storage systems

Nanotechnology / Nanomaterials

created Nov 19, 2009 | popularity 4.4 / 5 (10) | 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 ...


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.


New 'finFETS' promising for smaller transistors, more powerful chips

New 'finFETs' promising for smaller transistors, more powerful chips

Technology / Semiconductors

created Nov 10, 2009 | popularity 4.9 / 5 (14) | comments 3

(PhysOrg.com) -- Purdue University researchers are making progress in developing a new type of transistor that uses a finlike structure instead of the conventional flat design, possibly enabling engineers ...


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 ...


Spin polarization achieved in room temperature silicon

Spin polarization achieved in room temperature silicon

Physics / General Physics

created Nov 27, 2009 | popularity 4.9 / 5 (18) | 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, ...


Program automatically shuts down office PCs when not in use

Technology / Software

created Nov 06, 2009 | popularity 3.7 / 5 (3) | comments 0

NEC Corp. says it has developed the country's first software that automatically controls power consumption by personal computers in accordance with the patterns of its user's PC activity.


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 ...


Powerful laser sheds light on fast ignition and high energy density physics

Powerful laser sheds light on fast ignition and high energy density physics

Physics / General Physics

created Nov 02, 2009 | popularity 3.8 / 5 (5) | comments 0

A new generation of high-energy (>kJ) petawatt (HEPW) lasers is being constructed worldwide to study high intensity laser matter interactions, including fast ignition. Fast ignition is a laser-based technique ...


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 to develop novel drug detection technology using software that acts like a robotic scientist

Chemistry / Analytical Chemistry

created Nov 09, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Every time a person snorts cocaine, it doesn’t just go to his or her head: It also provokes a response in the immune system, creating special biomolecules that may serve as a permanent record of each exposure.



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