News tagged with kelvin

New material for warm-white LEDs invented

Light emitting diodes, more commonly called LEDs, are known for their energy efficiency and durability, but the bluish, cold light of current white LEDs has precluded their widespread use for indoor lighting.

dateJan 18, 2013 in Engineering
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Floundering El Ninos Make for Fickle Forecasts

( -- Since May 2009, the tropical Pacific Ocean has switched from a cool pattern of ocean circulation known as La Niña to her warmer sibling, El Niño. This cyclical warming of the ocean waters in the central ...

dateSep 29, 2009 in Earth Sciences
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A New Glance on Microscopic Images

A doctoral student at the research center Forschungszentrum Dresden-Rossendorf (Germany) suggests interpreting the images generated by Kelvin probe force microscopy in a new way. She recently published her insights in the ...

dateSep 16, 2009 in Nanophysics
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Coolest spacecraft ever in orbit around L2

( -- Last night, the detectors of Planck's High Frequency Instrument reached their amazingly low operational temperature of -273°C, making them the coldest known objects in space. The spacecraft has also just ...

dateJul 03, 2009 in Space Exploration
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The Fickle El Nino of 2014

Prospects have been fading for an El Niño event in 2014, but now there's a glimmer of hope for a very modest comeback. Scientists warn that unless these developing weak-to-modest El Niño conditions strengthen, the drought-stricken ...

dateSep 24, 2014 in Earth Sciences
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