News tagged with white light
The Helix Nebula in new colors
(PhysOrg.com) -- ESO's VISTA telescope, at the Paranal Observatory in Chile, has captured a striking new image of the Helix Nebula. This picture, taken in infrared light, reveals strands of cold nebular gas ...
Jan 19, 2012 |
4.3 / 5 (3) |
0
|
High-quality white light produced by four-color laser source
(PhysOrg.com) -- The human eye is as comfortable with white light generated by diode lasers as with that produced by increasingly popular light-emitting diodes (LEDs), according to tests conceived at Sandia ...
Oct 26, 2011 |
4.9 / 5 (9) |
19
|
Do white LEDs disrupt our biological clocks?
You come into contact every day with light-emitting diodes (LEDs) -- they illuminate alarm clocks, new televisions, traffic lights, and smartphone displays. Increasingly, you will see white-light versions ...
Oct 17, 2011 |
4.5 / 5 (8) |
6
|
'White' light suppresses the body's production of melatonin
Exposure to the light of white LED bulbs, it turns out, suppresses melatonin 5 times more than exposure to the light of High Pressure Sodium bulbs that give off an orange-yellow light. "Just as there are regulations and standards ...
Sep 12, 2011 |
5 / 5 (17) |
23
|
Team finds Type Ia supernovae parents
Type Ia supernovae are violent stellar explosions whose brightness is used to determine distances in the universe. Observing these objects to billions of light years away has led to the discovery that the universe is expanding ...
Aug 11, 2011 |
5 / 5 (6) |
0
|
Obama to announce new car efficiency standards
US President Barack Obama will later this week unveil new fuel efficiency standards for passenger cars and light trucks for the 2017-2025 period, the White House said Wednesday.
Technology / Energy & Green Tech
Jul 27, 2011 |
4.8 / 5 (9) |
156
Feuding helium dwarfs exposed by eclipse
Researchers at the University of Warwick have found a unique feuding double white dwarf star system where each star appears to have been stripped down to just its helium.
May 24, 2011 |
4 / 5 (4) |
2
|
Researchers discover way to create true-color 3-D holograms
(PhysOrg.com) -- Satoshi Kawata, Miyu Ozaki and their team of photonics physicists at Osaka University in Japan, have figured out a way to capture the original colors of an object in a still 3-D hologram by ...
Apr 08, 2011 |
5 / 5 (22) |
5
|
Moving toward greener chemistry
Phosphorus, a mineral element found in rocks and bone, is a critical ingredient in fertilizers, pesticides, detergents and other industrial and household chemicals. Once phosphorus is mined from rocks, getting ...
Sep 03, 2010 |
4.5 / 5 (6) |
1
|
White LEDs with super-high luminous efficacy could satisfy all general lighting needs
(PhysOrg.com) -- Researchers from the Nichia Corporation in Tokushima, Japan, have set an ambitious goal: to develop a white LED that can replace every interior and exterior light bulb currently used in homes ...
Aug 31, 2010 |
4.8 / 5 (50) |
34
|
Hinode Discovers the Origin of White Light Flare
(PhysOrg.com) -- A joint Japan-United States research team has identified the origin of the white light emission in solar flares.
May 20, 2010 |
4.9 / 5 (7) |
1
|
Berkeley Researchers Light Up White OLEDs
(PhysOrg.com) -- Light-emitting diodes, which employ semiconductors to produce artificial light, could reduce electricity consumption and lighten the impact of greenhouse gas emissions. However, moving this ...
Apr 06, 2010 |
4.4 / 5 (21) |
7
|
Nano for the senses
Pin-sharp projections, light that's whiter than white, varnishes that make sounds if the temperature changes: at nano tech 2010 in Tokyo, Fraunhofer researchers present nanotechnology that is a veritable feast for the senses.
Nanotechnology / Nanomaterials
Feb 02, 2010 |
not rated yet |
0
Massive white dwarf in our galaxy may go supernova
(PhysOrg.com) -- A massive white dwarf star in our galaxy may become a supernova several million years from now, and could damage the Earth and possibly destroy life on Earth.
Jan 07, 2010 |
4.3 / 5 (39) |
25
|
OLED Tunes its Colors for Sunlight-Style Illumination
(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 ...
Jul 16, 2009 |
5 / 5 (39) |
15
