News tagged with charges
Dark matter may be an illusion caused by the quantum vacuum
(PhysOrg.com) -- One of the biggest unsolved problems in astrophysics is that galaxies and galaxy clusters rotate faster than expected, given the amount of existing baryonic (normal) matter. The fast orbits ...
Aug 11, 2011 |
4.7 / 5 (85) |
222
|
Repulsive gravity as an alternative to dark energy (Part 2: In the quantum vacuum)
(PhysOrg.com) -- During the past few years, CERN physicist Dragan Hajdukovic has been investigating what he thinks may be a widely overlooked part of the cosmos: the quantum vacuum. He suggests that the quantum vacuum has ...
Feb 01, 2012 |
4.7 / 5 (77) |
143
|
Gravity eases its pull
(PhysOrg.com) -- Ever since Galileo first dropped his balls off the top of the Tower of Pisa in the late 16th century, gravity has caused a major headache for mathematicians and physicists down the ages.
Nov 04, 2010 |
4.7 / 5 (53) |
51
|
Solar power without solar cells: A hidden magnetic effect of light could make it possible
(PhysOrg.com) -- A dramatic and surprising magnetic effect of light discovered by University of Michigan researchers could lead to solar power without traditional semiconductor-based solar cells.
Apr 14, 2011 |
4.4 / 5 (41) |
19
|
Voyager 1 hits new region at solar system edge
(PhysOrg.com) -- NASA's Voyager 1 spacecraft has entered a new region between our solar system and interstellar space. Data obtained from Voyager over the last year reveal this new region to be a kind of cosmic ...
Space & Earth / Space Exploration
Dec 05, 2011 |
4.8 / 5 (37) |
118
|
Physicists explain why superconductors fail to produce super currents
When high-temperature superconductors were first announced in the late 1980s, it was thought that they would lead to ultra-efficient magnetic trains and other paradigm-shifting technologies.
Jun 27, 2010 |
4.7 / 5 (35) |
19
|
Fundamental matter-antimatter symmetry confirmed
International collaboration including MPQ scientists sets a new value for the antiproton mass relative to the electron with unprecedented precision.
Jul 28, 2011 |
4.8 / 5 (31) |
30
|
'Magnetricity' observed and measured for the first time
(PhysOrg.com) -- A magnetic charge can behave and interact just like an electric charge in some materials, according to new research led by the London Centre for Nanotechnology.
Oct 15, 2009 |
4.3 / 5 (34) |
13
French physicists claim breakthrough in ultra-fast data access
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.
May 31, 2009 |
4.4 / 5 (32) |
16
Ytterbium's broken symmetry: The largest parity violations ever measured in an atom
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, ...
Jul 22, 2009 |
4.6 / 5 (29) |
13
Researchers build first physical 'metatronic' circuit
(PhysOrg.com) -- The technological world of the 21st century owes a tremendous amount to advances in electrical engineering, specifically, the ability to finely control the flow of electrical charges using ...
Feb 22, 2012 |
4.7 / 5 (27) |
12
|
Graphene Yields Secrets to Its Extraordinary Properties
(PhysOrg.com) -- Applying innovative measurement techniques, researchers from the Georgia Institute of Technology and the National Institute of Standards and Technology have directly measured the unusual energy ...
May 14, 2009 |
4.8 / 5 (26) |
0
New charging method could greatly reduce battery recharge time
(PhysOrg.com) -- Part of the headache of having to constantly recharge batteries is not just how often they need to be charged, but also the time it takes to charge them. In a new study, researchers have proposed ...
Mar 11, 2010 |
4.7 / 5 (25) |
14
|
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 |
4.3 / 5 (27) |
66
|
New study confirms exotic electric properties of graphene
(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: ...
Nanotechnology / Nanomaterials
Nov 17, 2009 |
4.8 / 5 (23) |
1
