News tagged with electrical power
LED's efficiency exceeds 100%
(PhysOrg.com) -- For the first time, researchers have demonstrated that an LED can emit more optical power than the electrical power it consumes. Although scientifically intriguing, the results won’t ...
Mar 05, 2012 |
4.4 / 5 (65) |
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Scientists image the sea monster of nuclear fusion: the Rayleigh-Taylor instability
(PhysOrg.com) -- A new X-ray imaging capability has taken pictures of a critical instability at the heart of Sandia's huge Z accelerator. The effort may help remove a major impediment in the worldwide, multidecade, ...
Nov 12, 2010 |
4.8 / 5 (33) |
18
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Tiny heat engine may be world's smallest
(PhysOrg.com) -- Steam engines, combustion engines, and diesel engines are all different types of heat engines, which operate by converting heat energy into mechanical work. Although heat engines have existed ...
Feb 02, 2011 |
4.7 / 5 (29) |
10
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Solving the solar cell power conversion dilemma
(PhysOrg.com) -- "There is a lot of interest in creating more efficient solar cells that are also simpler than many of the designs common now," Wladek Walukiewicz tells PhysOrg.com. "We think that, throug ...
Jan 24, 2011 |
4.6 / 5 (25) |
19
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Physicists demonstrate conditions for laser-driven fusion
(PhysOrg.com) -- Currently, commercial nuclear power plants generate electricity using nuclear fission, in which an atom’s nucleus is split into lighter nuclei. But scientists are also researching the ...
Mar 15, 2011 |
4.3 / 5 (27) |
26
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Human-electric hybrid car expected next year (w/ Video)
A human-electric hybrid vehicle, the "Imagine PS," capable of 100 kph (60 mph) on the flat and 50 kph uphill, is expected to be commercially available next year.
Aug 17, 2010 |
4.5 / 5 (23) |
16
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New superconductor research may solve key problem in physics
Binghamton University physicist Michael Lawler and his colleagues have made a breakthrough that could lead to advances in superconductors. Their findings will be published this week in the prestigious British journal Nature.
Jul 14, 2010 |
4.8 / 5 (21) |
0
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IBM research boosts long-range, air-powered electric battery project
(Phys.org) -- IBM announced that two industry leaders -- Asahi Kasei and Central Glass -- will join its Battery 500 Project team and collaborate on far-reaching research with the potential to accelerate the ...
Technology / Energy & Green Tech
Apr 20, 2012 |
4.9 / 5 (20) |
35
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New materials turn heat into electricity
Most of today's power plants--from some of the largest solar arrays to nuclear energy facilities--rely on the boiling and condensing of water to produce energy.
Technology / Energy & Green Tech
Nov 07, 2011 |
5 / 5 (19) |
8
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Researchers discover source for generating 'green' electricity
University of Minnesota engineering researchers in the College of Science and Engineering have recently discovered a new alloy material that converts heat directly into electricity. This revolutionary energy conversion method ...
Jun 22, 2011 |
4.8 / 5 (19) |
21
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Rechargeable lithium-sulfur batteries get a boost from graphene
(PhysOrg.com) -- By wrapping tiny sulfur particles in graphene sheets, researchers from Stanford University have synthesized a promising cathode material for rechargeable lithium-sulfur batteries that could ...
Nanotechnology / Nanomaterials
Jul 13, 2011 |
4.2 / 5 (22) |
53
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Vibration-powered generating batteries recharge when shaken
(PhysOrg.com) -- Whether you're away from electricity or you don't mind expending a few of your own calories, a new generator allows you to recharge it simply by shaking it. Its developer, Brother Industries ...
Technology / Energy & Green Tech
Jul 18, 2010 |
4.5 / 5 (20) |
22
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Voyager instrument cooling after heater turned off
(PhysOrg.com) -- In order to reduce power consumption, mission managers have turned off a heater on part of NASA's Voyager 1 spacecraft, dropping the temperature of its ultraviolet spectrometer instrument ...
Space & Earth / Space Exploration
Jan 18, 2012 |
4.7 / 5 (18) |
22
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Scotland passes turbine test to harness tidal power
(Phys.org) -- An underwater turbine being used for harnessing tidal power to generate electricity for homes and businesses has successfully completed its testing period in the island of Eday, one of Orkney’s ...
Technology / Energy & Green Tech
May 20, 2012 |
4.6 / 5 (18) |
41
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Wave power could contain fusion plasma
Researchers at the University of Warwick’s Centre for Fusion Space and Astrophysics and the UK Atomic Energy Authority’s Culham Centre for Fusion Energy may have found a way to channel the flux and fury of a nuclear ...
Jan 10, 2011 |
4.8 / 5 (17) |
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