News tagged with electromagnetic signals

Testing the T-shirt antenna

NPL worked with BAE Systems Advanced Technology Centre, to measure the pattern and efficiency of radiation emitted from next generation wearable antennas embedded in T-shirts.

dateJun 30, 2011 in Engineering
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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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Astronomers seek to explore the cosmic Dark Ages

No place seems safe from the prying eyes of inquisitive astronomers. They've traced the evolution of the universe back to the "Big Bang," the theoretical birth of the cosmos 13.7 billion years ago, but there's still a long ...

dateOct 15, 2009 in Astronomy
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