Electric charge
hideElectric 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
'No muss, no fuss' miniaturized analysis for complex samples developed
Chemistry / Analytical Chemistry
Nov 18, 2009 |
4.7 / 5 (3) |
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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 ...
JQI researchers create entangled photons from quantum dots
Nov 18, 2009 |
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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 ...
New study confirms exotic electric properties of graphene
Nanotechnology / Nanomaterials
Nov 17, 2009 |
4.8 / 5 (23) |
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(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: ...
Scientists Use Self-Assembly to Make Molecule-Sized Particles With Patches of Charge
Nanotechnology / Nanomaterials
Oct 20, 2009 |
5 / 5 (2) |
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(PhysOrg.com) -- Physicists, chemists and engineers at the University of Pennsylvania have demonstrated a novel method for the controlled formation of patchy particles, using charged, self-assembling molecules ...
Opposites attract -- but they may not stay together
Sep 24, 2009 |
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(PhysOrg.com) -- Opposites may always attract. But they may not remain together long-term. In a counter-intuitive discovery published in the current edition of the journal Nature, researchers from Harvard, the Un ...
Study on effect of electricity on liquids bucks conventional science (w/ Video)
Sep 16, 2009 |
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(PhysOrg.com) -- Whether gazing into lava lamps or watching balsamic vinegar mix with olive oil, people have long been transfixed by the seemingly mystical way that droplets of one liquid find each other within ...
Michigan scientists working on super-fast, secure computing
Sep 09, 2009 |
4 / 5 (2) |
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Air Force Office of Scientific Research(AFOSR)-supported physicists at the University of Michigan are developing innovative components for quantum, or super-fast, computers that will improve security for data ...
Hot and Cold Moves of Cyanide and Water
Sep 08, 2009 |
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(PhysOrg.com) -- Scientists have long known that molecules dance about as the temperature rises, but now researchers know the exact steps that water takes with a certain molecule. Results with small, electrically ...
Safer, Denser Acetylene Storage in an Organic Framework
Aug 26, 2009 |
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(PhysOrg.com) -- The century-old challenge of transporting acetylene may have been solved in principle by a team of scientists working at the National Institute of Standards and Technology. A NIST research ...
Lightning’s Mirror Image, Only Much Bigger (w/ Video)
Space & Earth / Earth Sciences
Aug 23, 2009 |
4.5 / 5 (17) |
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(PhysOrg.com) -- With a very lucky shot, scientists have captured a one-second image and the electrical fingerprint of huge lightning that flowed 40 miles upward from the top of a storm.
Chemist creates trapping technique for nanoparticles
Aug 17, 2009 |
5 / 5 (3) |
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(PhysOrg.com) -- A chemist at the University of Wisconsin-Milwaukee (UWM) has developed a kind of invisible fence for trapping and controlling particles as small as a single virus or large protein.
Ytterbium's broken symmetry: The largest parity violations ever measured in an atom
Jul 22, 2009 |
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Ytterbium was discovered in 1878, but until it recently became useful in atomic clocks, the soft metal rarely made the news. Now ytterbium has a new claim to scientific fame. Measurements with ytterbium-174, ...
French physicists claim breakthrough in ultra-fast data access
May 31, 2009 |
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French physicists said on Sunday they had used ultra-fast lasers that could accelerate storage and retrieval of data on hard discs by up to 100,000 times, pointing the way to a new generation of IT wizardry.
Highly conductive nanocomposites: Inexpensive plastic used in CDs could improve electronics
Nanotechnology / Nanomaterials
May 15, 2009 |
5 / 5 (3) |
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If one University of Houston professor has his way, the inexpensive plastic now used to manufacture CDs and DVDs will one day soon be put to use in improving the integrity of electronics in aircraft, computers and iPhones.
Spinning at the nanoscale: Electrospun fibers could be used for protective clothing, wearable power, more
Nanotechnology / Nanomaterials
May 05, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- In his office, MIT Professor of Chemical Engineering Gregory Rutledge keeps a small piece of fabric that at first glance resembles a Kleenex. This tissue-like material, softer than silk, is composed of fibers ...
