News tagged with electromagnetic radiation

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A new twist in the properties of light

Light has some well-established dynamical properties that have defined our understanding of electromagnetic radiation for over a century. Two of the most fundamental of these properties are that photons of light carry momentum ...

dateApr 25, 2014 in Optics & Photonics
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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 changes ...

dateJul 20, 2010 in Engineering weblog
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