News tagged with ultraviolet rays
Weathering System Cuts Product Testing Time
(PhysOrg.com) -- Engineers design a new auto paint, a better solar device or a sturdier vinyl siding. But how can they know if the new products deserve a five-year, 10-year or 30-year warranty? Better a ...
Sep 28, 2009 |
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Ozone layer depletion leveling off
By merging more than a decade of atmospheric data from European satellites, scientists have compiled a homogeneous long-term ozone record that allows them to monitor total ozone trends on a global scale - ...
Space & Earth / Earth Sciences
Sep 21, 2009 |
3 / 5 (4) |
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Massive Stars Near the Galactic Center
The Central Molecular Zone (CMZ) of our galaxy is a giant complex of molecular gas and dust situated in the innermost 700 light-years of the Milky Way. Although the galaxy is over 100,000 light-years in size, ...
Aug 28, 2009 |
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Shade myths: How to really stay safe
Slather on some SPF 30 sunscreen and you know your nose won't turn pink.
Aug 21, 2009 |
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Changing climate likely to make 'super weed' even more powerful
Researchers at the University of Delaware have discovered a new reason why the tall, tasseled reed Phragmites australis is one of the most invasive plants in the United States.
Jun 03, 2009 |
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Swift satellite comet tally highlighted
A montage of comet images made using NASA's Swift spacecraft illustrates just how different three comets can be. The images, including a never-released image of Comet 8P/Tuttle, were shown during a webcast ...
Apr 24, 2009 |
4.5 / 5 (4) |
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Membrane filters are key to future of public water supply, scientists say
As municipalities across the United States reduce their dependence on groundwater sources to mitigate environmental impacts like subsidence and flooding, there is a growing need for better purification processes to keep contaminants ...
Apr 21, 2009 |
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Swift’s Comet Tally
A montage of comet images made using NASA’s Swift spacecraft illustrates just how different three comets can be. The images, including a never-released image of Comet 8P/Tuttle, were shown today during a live, 24-hour video ...
Space & Earth / Space Exploration
Apr 06, 2009 |
5 / 5 (3) |
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Self-Healing: Sunlight Helps Scratches on Cars, Electronics and Furniture Disappear
(PhysOrg.com) -- There are few things in life that are more annoying than having your iPod's beautiful face marred by scratches. But what if those scratches could "heal" themselves? New technology developed ...
Apr 02, 2009 |
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Swift Satellite records early phase of gamma ray burst
(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 ...
Mar 02, 2009 |
5 / 5 (7) |
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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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