News tagged with electric current

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Power grid change may disrupt clocks

A yearlong experiment with the nation's electric grid could mess up traffic lights, security systems and some computers - and make plug-in clocks and appliances like programmable coffeemakers run up to 20 ...

Jun 24, 2011
4.3 / 5 (11) 20

Getting ready for the next big solar storm

(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 ...

Jun 22, 2011
4.6 / 5 (8) 14 | with audio podcast

New spin on graphene

(PhysOrg.com) -- University of Manchester scientists have found a way to make wonder material graphene magnetic, opening up a new range of opportunities for the world’s thinnest material in the area of ...

Apr 14, 2011
3.9 / 5 (7) 3 | with audio podcast

Electrified dental implants

Infections on dental implants are dreaded. There is a great risk that the jawbone will recede as a result. Researchers have now developed a method that could effectively eliminate the bacteria causing the ...

Mar 08, 2011
5 / 5 (1) 1

Chandra finds superfluid in neutron star's core

(PhysOrg.com) -- NASA's Chandra X-ray Observatory has discovered the first direct evidence for a superfluid, a bizarre, friction-free state of matter, at the core of a neutron star. Superfluids created in ...

Feb 23, 2011
4.7 / 5 (27) 31 | with audio podcast