News tagged with power grids

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How the sun gets its spots

Sunspots are huge, dark, irregularly shaped--and yet, temporary--areas of intense magnetism on the sun that expand and contract as they move.

Jan 07, 2011
4.7 / 5 (18) 7 | with audio podcast

Sneak Attacks from the Sun

(PhysOrg.com) -- Our Sun can be a menace when it sends out powerful solar blasts of radiation towards the Earth. Astronomers keenly watch the Sun to learn more about what powers these solar eruptions, in hopes ...

Dec 08, 2010
4.2 / 5 (9) 4 | with audio podcast

Bringing down the electric grid

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 o ...

Oct 12, 2010
4 / 5 (10) 12 | with audio podcast

'Cyber Storm III' tests US on cyber attack

Keyboard warriors from the United States and a dozen other nations were battling a simulated cyber attack Tuesday on government and private networks that undermines basic trust in the Internet.

Sep 28, 2010
3.6 / 5 (5) 2

Privacy group sues to get data about NSA-Google ties

The National Security Agency should divulge information about its reported agreement with Google Inc. to help the Internet company defend itself against foreign cyber attacks, according to a lawsuit filed Monday by a privacy ...

Sep 14, 2010
5 / 5 (9) 18