News tagged with radio signals

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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.

Aug 24, 2010 5 / 5 (13) 4 | with audio podcast

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 ...

Jul 23, 2010 3.4 / 5 (5) 1

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 ...

Jul 20, 2010 4.2 / 5 (13) 2 | with audio podcast weblog

Secure radio signal for central locking

(PhysOrg.com) -- Remote central locking is among the most convenient aspects of modern motoring. Transmission of the radio signal that activates the system is not particularly secure, however. A new encryption ...

Feb 01, 2010 5 / 5 (1) 0

Making it easier to save energy

Fraunhofer scientists are developing programs that help show at a glance how much energy devices are consuming. At the GSMA Mobile World Congress in Barcelona, the researchers will be showing how a cell phone can help save ...

Jan 15, 2010 2 / 5 (2) 0