(PhysOrg.com) -- In Sept. 1859, on the eve of a below-average1 solar cycle, the sun unleashed one of the most powerful storms in centuries. The underlying flare was so unusual, researchers still aren't sure how to categorize ...
Space Exploration
Jun 22, 2011
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(PhysOrg.com) -- Conversion to renewable energy sources like wind and sun is only a question of time. Because wind and solar radiation vary in strength, the increase in renewable energy sources will cause significant fluctuations ...
Nanomaterials
Jun 7, 2011
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A radically new approach to the design of batteries, developed by researchers at MIT, could provide a lightweight and inexpensive alternative to existing batteries for electric vehicles and the power grid. The technology ...
Energy & Green Tech
Jun 6, 2011
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(PhysOrg.com) -- The city of Plainville, Conn. got a brand new carport, and this one runs entirely on the power of the sun. The carport makes use of solar panels that have been mounted of the roof in order to power vehicle ...
The White House on Thursday is expected to unveil its proposal to enhance the nation's cybersecurity, laying out plans to require industry to better protect systems that run critical infrastructure like the electrical grid, ...
Internet
May 12, 2011
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Wind turbines have a problem: Depending on the wind's force, the rotational speed of the turbine and thus of the generator changes. However, alternating current must be fed into the grid with precisely 50 (or 60) hertz. Typically ...
Energy & Green Tech
Feb 23, 2011
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A powerful solar eruption that triggered a huge geomagnetic storm has disturbed radio communications and could disrupt electrical power grids, radio and satellite communication in the next days, NASA said.
Space Exploration
Feb 17, 2011
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A researcher at the National Institute of Standards and Technology has invented a method of making high-temperature superconducting (HTS) cables that are thinner and more flexible than demonstration HTS cables now installed ...
Superconductivity
Feb 11, 2011
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Every hundred years or so, a solar storm comes along so potent it fills the skies of Earth with blood-red auroras, makes compass needles point in the wrong direction, and sends electric currents coursing through the planet's ...
Space Exploration
Oct 26, 2010
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Last March, the U.S. Congress heard testimony about a scientific study in the journal Safety Science. A military analyst worried that the paper presented a model of how an attack on a small, unimportant part of the U.S. power ...
General Physics
Oct 12, 2010
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