News tagged with white light
Freeing light shines promise on energy-efficient lighting
Jul 15, 2008 |
4.5 / 5 (37) |
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(PhysOrg.com) -- The latest bright idea in energy-efficient lighting for homes and offices uses big science in nano-small packages to dim the future Edison's light bulb.
Cheap, efficient white light LEDs new design
Apr 07, 2009 |
4.9 / 5 (26) |
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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 ...
Engineers ride 'rogue' laser waves to build better light sources
Mar 05, 2009 |
4.1 / 5 (11) |
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A freak wave at sea is a terrifying sight. Seven stories tall, wildly unpredictable, and incredibly destructive, such waves have been known to emerge from calm waters and swallow ships whole. But rogue waves ...
Bright White Light Coaxed from Unexpected Source
Dec 18, 2008 |
4.7 / 5 (7) |
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(PhysOrg.com) -- Duke University and United States Army scientists have found that a cheap and nontoxic sunburn and diaper rash preventative can be made to produce brilliant light best suited to the human ...
Search results for white light
Diode lights offer bright future for low energy
May 13, 2009 |
3.8 / 5 (8) |
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German scientists said Wednesday they had tweaked organic light-emitting diodes (OLEDs) -- the materials used in flat-screen TVs, laptop computer screens and mobile phone displays -- to become flexible, energy-efficient ...
White glow: Dye-doped DNA nanofibers emit white light
Nanotechnology / Nanomaterials
Jul 08, 2009 |
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(PhysOrg.com) -- Efficient energy transport plays an important role in the development of optoelectonic materials. The true masters of energy transfer via a hierarchical arrangement of different molecules are the photosynthetic ...
Owls' dawn and dusk concerts promote visual communication
Apr 08, 2009 |
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Reporting in the online, open-access journal PLoS ONE April 8, Vincenzo Penteriani and Maria Delgado of the Estacion Biologica de Doņana, Spain, describe the evolution of white throat badges in association with d ...
How white is a paper?
Technology / Computer Sciences
Oct 22, 2009 |
3.5 / 5 (2) |
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Whiter paper and better color reproduction are examples of important competitive advantages on an international market. But how white is a paper? And why do vacation photos turn out so dark if you don't buy ...
Largest collection of anomalous white dwarfs observed by Hubble
Apr 23, 2009 |
4.7 / 5 (6) |
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Twenty-four unusual stars, 18 of them newly discovered, have been observed in new Hubble telescope images. The stars are white dwarfs, a common type of dead star, but they are odd because they are made of ...
Tanning may be associated with moles in very light-skinned children
Sep 21, 2009 |
5 / 5 (1) |
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Very-light-skinned children without red hair who tan appear to develop more nevi (birthmarks, moles or other colored spots on the skin) than children who do not tan, according to a report in the September issue of Archives of ...
A 'light bulb' moment for people with dementia (w/Video)
May 12, 2009 |
4 / 5 (1) |
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(PhysOrg.com) -- Change the lighting; improve your health. It's a strategy researchers from Case Western Reserve University's Frances Payne Bolton School of Nursing and the School of Medicine, the Geriatric ...
Two Earth-sized bodies with oxygen rich atmospheres found -- but they're stars not planets
Nov 12, 2009 |
4.4 / 5 (21) |
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(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 ...
Light-activated antibacterial coating is new weapon in fight against hospital-acquired infections
Mar 31, 2009 |
not rated yet |
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A new hard coating with antibacterial properties that has been tested by researchers at the UCL Eastman Dental Institute has been shown to kill 99.9% of Escherichia coli bacteria when a white hospital light was shone on its ...
LED closes the yellow gap: Full conversion of blue into amber light by new nitride phosphor
Jul 23, 2009 |
4.8 / 5 (8) |
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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%, ...
List of search results for white light
