News tagged with radio signals

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Nanotubes behave as optical antennae

(PhysOrg.com) -- Just as walkie-talkies transmit and receive radio waves, carbon nanotubes can transmit and receive light at the nanoscale, Cornell researchers have discovered.

dateDec 21, 2010 in Nanomaterials
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A new way to weigh planets

An international CSIRO-led team of astronomers has developed a new way to weigh the planets in our Solar System - using radio signals from the small spinning stars called pulsars.

dateAug 24, 2010 in Astronomy
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Wal-Mart to roll out smart tags on men's basics

(AP) -- Wal-Mart Stores Inc. is putting electronic identification tags on men's clothing like jeans starting Aug. 1 as the world's largest retailer tries to gain more control of its inventory. But the move is raising eyebrows ...

dateJul 23, 2010 in Other
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Radio Waves: Alternative Power Source

(PhysOrg.com) -- Researchers at Duke University are harvesting ambient radio waves to power small microprocessor devices that consume very little energy. Devices such as sensors that monitor critical environmental ...

dateJul 20, 2010 in Engineering weblog
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Widening the search for extraterrestrial intelligence

"The Search for Extraterrestrial Intelligence (SETI) has been dominated for its first half century by a hunt for unusual radio signals. But as he prepares for the publication of his new book The Eerie Silence: Are We Alone?," ...

dateMar 01, 2010 in Astronomy
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