News tagged with white

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OLED Tunes its Colors for Sunlight-Style Illumination

OLED Tunes its Colors for Sunlight-Style Illumination

Physics / General Physics

created Jul 16, 2009 | popularity 5 / 5 (39) | comments 15

(PhysOrg.com) -- Scientists have developed a lighting device that can change its color temperature throughout the day, matching the natural daylight chromaticities produced by the sun. Currently, no other ...


Ticking stellar time bomb identified

Ticking stellar time bomb identified (w/ Video)

Space & Earth / Astronomy

created Nov 17, 2009 | popularity 4.7 / 5 (11) | comments 0

(PhysOrg.com) -- "One of the major problems in modern astrophysics is the fact that we still do not know exactly what kinds of stellar system explode as a Type Ia supernova," says Patrick Woudt, from the University ...


2 Earth-sized bodies with oxygen rich atmospheres found -- but they're stars not planets

Two Earth-sized bodies with oxygen rich atmospheres found -- but they're stars not planets

Space & Earth / Astronomy

created Nov 12, 2009 | popularity 4.4 / 5 (21) | comments 1

(PhysOrg.com) -- Astrophysicists at the University of Warwick and Kiel University have discovered two earth sized bodies with oxygen rich atmospheres - however there is a bit of a disappointing snag for anyone ...


Rapid supernova could be new class of exploding star

Rapid supernova could be new class of exploding star

Space & Earth / Astronomy

created Nov 05, 2009 | popularity 4.7 / 5 (18) | comments 6

(PhysOrg.com) -- An unusual supernova rediscovered in seven-year-old data may be the first example of a new type of exploding star, possibly from a binary star system where helium flows from one white dwarf ...


Regeneration can be achieved after chronic spinal cord injury

Medicine & Health / Neuroscience

created Oct 28, 2009 | popularity 5 / 5 (6) | comments 4

Scientists at the University of California, San Diego School of Medicine report that regeneration of central nervous system axons can be achieved in rats even when treatment delayed is more than a year after the original ...


Matter in hand: Jugglers have rewired brains

Matter in hand: Jugglers have rewired brains

Medicine & Health / Neuroscience

created Oct 11, 2009 | popularity 4.9 / 5 (22) | comments 4

(PhysOrg.com) -- Learning to juggle leads to changes in the white matter of the brain, an Oxford University study has shown.


Plesiosaur a victim of shark attack

Other Sciences / Archaeology & Fossils

created Oct 06, 2009 | popularity 4.4 / 5 (8) | comments 0

(PhysOrg.com) -- An 85 million-year-old plesiosaur fossil has been found with over 80 shark's teeth, suggesting the animal was the victim of sharks in a feeding frenzy. The find is perhaps the most spectacular example of ...


XMM-Newton uncovers a celestial Rosetta stone

XMM-Newton uncovers a celestial Rosetta stone

Space & Earth / Astronomy

created Sep 03, 2009 | popularity 4.9 / 5 (16) | comments 7

(PhysOrg.com) -- ESA's XMM-Newton orbiting X-ray telescope has uncovered a celestial Rosetta stone: the first close-up of a white dwarf star, circling a companion star, that could explode into a particular ...


Variability of type 1a supernovae has implications for dark energy studies

Variability of type 1a supernovae has implications for dark energy studies

Space & Earth / Astronomy

created Aug 12, 2009 | popularity 4.7 / 5 (19) | comments 20

(PhysOrg.com) -- The stellar explosions known as type 1a supernovae have long been used as "standard candles," their uniform brightness giving astronomers a way to measure cosmic distances and the expansion ...


Common allergy drug reduces obesity and diabetes in mice

Medicine & Health / Research

created Jul 26, 2009 | popularity 4.6 / 5 (12) | comments 2

Crack open the latest medical textbook to the chapter on type 2, or adult-onset, diabetes, and you'll be hard pressed to find the term "immunology" anywhere. This is because metabolic conditions and immunologic conditions ...


Scientists cage chemical demon

Chemistry / Materials Science

created Jun 25, 2009 | popularity 4 / 5 (6) | comments 10

A Cambridge University-led research team has discovered a technique to safely handle and transport white phosphorous.


World's observatories watching 'cool' star

World's observatories watching 'cool' star

Space & Earth / Astronomy

created May 15, 2009 | popularity 4.6 / 5 (18) | comments 3

The Whole Earth Telescope (WET), a worldwide network of observatories coordinated by the University of Delaware, is synchronizing its lenses to provide round-the-clock coverage of a cooling star. As the star ...


Galactic X-ray emissions originate from stars

Galactic X-ray emissions originate from stars

Space & Earth / Astronomy

created May 05, 2009 | popularity 4.9 / 5 (7) | comments 2

(PhysOrg.com) -- A 25-year old astronomical mystery has been solved: Most of the diffuse X-ray emissions in the Milky Way do not originate from one single source but from so-called white dwarfs and from stars ...


Solar systems around dead Suns?

Solar systems around dead Suns?

Space & Earth / Astronomy

created Apr 20, 2009 | popularity 4.5 / 5 (15) | comments 3

(PhysOrg.com) -- Using NASA’s Spitzer Space Telescope, an international team of astronomers have found that at least 1 in 100 white dwarf stars show evidence of orbiting asteroids and rocky planets, suggesting ...


Cheap and efficient white light LEDs new design described in AIP's Journal of Applied Physics

Cheap, efficient white light LEDs new design

Physics / General Physics

created Apr 07, 2009 | popularity 4.9 / 5 (26) | comments 5

Roughly 20 percent of the electricity consumed worldwide is used to light homes, businesses, and other private and public spaces. Though this consumption represents a large drain on resources, it also presents ...