News tagged with ultraviolet spectrum

Why NASA studies the ultraviolet sun

(Phys.org) —You cannot look at the sun without special filters, and the naked eye cannot perceive certain wavelengths of sunlight. Solar physicists must consequently rely on spacecraft that can observe ...

Aug 21, 2014
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Free-Electron Laser goes over the rainbow

Somewhere over the rainbow of visible light is an untapped goldmine of research potential, where energy sources, novel materials and environmental research are possible. That goldmine may soon be open to researchers ...

Dec 09, 2010
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Bananas Gone Bad Glow Blue in UV-Light

(PhysOrg.com) -- Nicholas Turro of Columbia University, Bernhard Krautler of the University of Innsbruck, Austria and their colleagues have found that, as chlorophyll ages and begins to disintegrate in banana ...

Sep 09, 2009
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The Medical Minute: Melanoma - The dark side of the sun

Now that the weather is nice, people will spend more time outside. Whether it’s doing yard work, playing golf or relaxing at the beach, we are a nation of sun lovers. Some people with light skin may even spend a few sessions ...

May 27, 2009
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Team develops new metamaterial device

An engineered metamaterial proved it can function as a state-of-the-art device in the complex terahertz range of the electromagnetic spectrum, setting a standard of performance for modulating tiny waves of radiation, according ...

Feb 24, 2009
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