News tagged with electrical signals

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Review: Use power outlets as a Wi-Fi alternative

(AP) -- Setting up a Wi-Fi network at home has gotten much easier, yet the process can still be daunting. Or the wireless signal won't reach everywhere. A good alternative that has gotten little attention involves your electric ...

dateSep 02, 2009 in Telecom
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Brain-Like Computer Closer to Realization

( -- Almost since computing began, scientists and technologists have been fascinated with the idea of a computer that works similarly to the human brain. In 2008, the first "memristor" was built, a device that ...

dateMar 17, 2010 in Nanophysics weblog
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Frogs without ears hear with their mouth

Gardiner's frogs from the Seychelles islands, one of the smallest frogs in the world, do not possess a middle ear with an eardrum yet can croak themselves, and hear other frogs. An international team of scientists using X-rays ...

dateSep 02, 2013 in Plants & Animals
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The Day the Sun Brought Darkness (w/Video)

On March 13, 1989 the entire province of Quebec, Canada suffered an electrical power blackout. Hundreds of blackouts occur in some part of North America every year. The Quebec Blackout was different, because this one was ...

dateMar 13, 2009 in Space Exploration
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