News tagged with ultraviolet spectrum
The Medical Minute: Melanoma - The dark side of the sun
May 27, 2009 |
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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 ...
Swift Satellite records early phase of gamma ray burst
Mar 02, 2009 |
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(PhysOrg.com) -- UK astronomers, using a telescope aboard the NASA Swift Satellite, have captured information from the early stages of a gamma ray burst - the most violent and luminous explosions occurring ...
Search results for ultraviolet spectrum
Silicon nanoparticles enhance performance of solar cells
Aug 20, 2007 |
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Placing a film of silicon nanoparticles onto a silicon solar cell can boost power, reduce heat and prolong the cell’s life, researchers now report.
High in Sodium: Highly Charged Tungsten Ions May Diagnose Fusion Energy Reactors
Sep 08, 2009 |
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(PhysOrg.com) -- Just as health-food manufacturers work on developing the best possible sodium substitutes for low-salt diets, physicists at the National Institute of Standards and Technology have acquired ...
Galaxy Evolution Explorer Mission Celebrates Sixth Anniversary
Apr 28, 2009 |
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(PhysOrg.com) -- NASA's Galaxy Evolution Explorer Mission marks its sixth anniversary studying galaxies beyond our Milky Way through its sensitive ultraviolet telescope, the only such far-ultraviolet detector ...
The hottest white dwarf in its class
Dec 12, 2008 |
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(PhysOrg.com) -- A team of German and American astronomers present far-ultraviolet observations of white dwarf KPD 0005+5106 and reveal that it is among the hottest stars ever known with a temperature of 200 ...
The Sun's Sneaky Variability
Space & Earth / Space Exploration
Oct 28, 2009 |
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Every 11 years, the sun undergoes a furious upheaval. Dark sunspots burst forth from beneath the sun's surface. Explosions as powerful as a billion atomic bombs spark intense flares of high-energy radiation. ...
Hydrogen generation without the carbon footprint
Jul 15, 2008 |
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A greener, less expensive method to produce hydrogen for fuel may eventually be possible with the help of water, solar energy and nanotube diodes that use the entire spectrum of the sun's energy, according to Penn State researchers. ...
Lettuce gets a healthy suntan
May 18, 2009 |
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Salad dressing aside, a pile of spinach has more nutritional value than a wedge of iceberg lettuce. That's because darker colors in leafy vegetables are often signs of antioxidants that are thought to have a variety of health ...
EVE: Measuring the Sun's hidden variability
Space & Earth / Space Exploration
Sep 22, 2009 |
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Every 11 years, the sun undergoes a furious upheaval. Dark sunspots burst forth from beneath the sun's surface. Explosions as powerful as a billion atomic bombs spark intense flares of high-energy radiation. ...
Polarizing filter allows astronomers to see disks surrounding black holes
Jul 23, 2008 |
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(PhysOrg.com) -- For the first time, a team of international researchers has found a way to view the accretion disks surrounding black holes and verify that their true electromagnetic spectra match what astronomers ...
Most efficient spectrograph to shoot the Southern skies
May 26, 2009 |
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ESO's Very Large Telescope, Europe's flagship facility for ground-based astronomy, has been equipped with the first of its second generation instruments: X-shooter. It can record the entire spectrum of a celestial ...
List of search results for ultraviolet spectrum
