News tagged with visible
Dark Matter in a Galaxy
Oct 30, 2009 |
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(PhysOrg.com) -- Stars, the most familiar objects in the night sky, make up only a tiny percentage of the total amount of matter in the universe -- about 2%.
Scientists Build First 'Frequency Comb' To Display Visible 'Teeth'
Oct 29, 2009 |
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(PhysOrg.com) -- Finally, an optical frequency comb that visibly lives up to its name. Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology in the U.S. ...
NASA gets a 3-D look at Neki becoming extra-tropical
Space & Earth / Earth Sciences
Oct 26, 2009 |
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NASA's Aqua and Tropical Rainfall Measuring Mission (TRMM) satellites are watching Tropical Storm Neki become extra-tropical, and TRMM data was used to create a three-dimensional image of the storm.
Mantis shrimps could show us the way to a better DVD
Oct 25, 2009 |
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(PhysOrg.com) -- The remarkable eyes of a marine crustacean could inspire the next generation of DVD and CD players, according to a new study from the University of Bristol published today in Nature Photonics.
Chinese scientists create metamaterial black hole
Oct 16, 2009 |
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(PhysOrg.com) -- Two physicists in China have used metamaterials to create the first artificial electromagnetic black hole. The scientists, Qiang Cheng and Tie Jun Cui from the Southeast University in Nanjing, ...
Invisible hand in invisible matter
Oct 06, 2009 |
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(PhysOrg.com) -- An international team of astronomers have found an unexpected link between mysterious 'dark matter' and the visible stars and gas in galaxies that could revolutionise our current understanding ...
Spot discovered on dwarf planet Haumea shows up red and rich with organics
Sep 16, 2009 |
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A dark red area discovered on dwarf planet Haumea appears to be richer in minerals and organic compounds than the surrounding icy surface. The discovery will be presented at the European Planetary Science ...
Surgeons remove gall bladder through belly button to prevent scars
Sep 15, 2009 |
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(PhysOrg.com) -- Surgeons at The Methodist Hospital in Houston are removing gall bladders through a single incision in the belly button to prevent scarring for patients with gall stones. The procedure also has the potential ...
Bananas Gone Bad Glow Blue in UV-Light
Sep 09, 2009 |
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(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 ...
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 ...
Trifid triple threat
Aug 26, 2009 |
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Smouldering several thousand light-years away in the constellation of Sagittarius (the Archer), the Trifid Nebula presents a compelling portrait of the early stages of a star's life, from gestation to first ...
UGA, UPR grant license for long-persistence glow materials, in any color
Aug 17, 2009 |
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The University of Georgia Research Foundation, Inc. (UGARF) and the University of Puerto Rico have granted an international, non-exclusive license for a portfolio of glow-in-the-dark pigments that can be designed ...
New nanolaser -- spaser -- key to future optical computers and technologies
Aug 16, 2009 |
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(PhysOrg.com) -- Because the new device, called a "spaser," is the first of its kind to emit visible light, it represents a critical component for possible future technologies based on "nanophotonic" circuitry, ...
Columbia Researchers Lead Race to Find Dark Matter
Jul 27, 2009 |
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(PhysOrg.com) -- Inside a mountain range in central Italy, Columbia researchers are trying to solve one of the most pressing questions in modern physics: What is dark matter? The riddle has obsessed astronomers ...
LED closes the yellow gap: Full conversion of blue into amber light by new nitride phosphor
Jul 23, 2009 |
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(PhysOrg.com) -- Monochromatic light-emitting diodes cover a large part of the visible spectrum with high effi-ciency. For blue light, nitride diodes achieve external quantum efficiencies in excess of 65%, ...
