News tagged with spectrum

Seeing in the dark

Thermal infrared (IR) energy is emitted from all things that have a temperature greater than absolute zero. Human eyes, primarily sensitive to shorter wavelength visible light, are unable to detect or differentiate between ...

dateOct 29, 2013 in General Physics
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Topological light: Living on the edge

(Phys.org) —Topology—the understanding of how things are connected—remains abstract, even with the popular example of doughnuts and coffee cups. This concept, esoteric as it appears, is also neat because it is the basis ...

dateOct 21, 2013 in Optics & Photonics
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Researchers push the radio rainbow's limits

Back when walkie-talkies and car radios represented the height of wireless technology, there were plenty of frequencies to go around. The spectrum of radio waves was easily parsed into discrete packets: one for the oldies ...

dateOct 01, 2013 in Telecom
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Airborne imaging could revolutionise agriculture

An airborne camera capable of photographing the condition of certain crops over many acres of land could provide agriculturalists with the information they need to improve production. This is because, instead of simply recording ...

dateSep 10, 2013 in Engineering
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