Light
hideLight is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.
Three primary properties of light are:
Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.
For more information about Light, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with light source
Science Begins at the World's Most Powerful X-ray Laser (w/ Video)
Nov 02, 2009 |
4.4 / 5 (9) |
2
(PhysOrg.com) -- The first experiments are now underway using the world's most powerful X-ray laser, the Linac Coherent Light Source, located at the Department of Energy's SLAC National Accelerator Laboratory. ...
New nanocrystals show potential for cheap lasers, new lighting
May 10, 2009 |
4.8 / 5 (29) |
4
For more than a decade, scientists have been frustrated in their attempts to create continuously emitting light sources from individual molecules because of an optical quirk called "blinking," but now scientists ...
Discovery of an Unexpected Boost for Solar Water-Splitting Cells
Nanotechnology / Nanomaterials
Apr 22, 2009 |
5 / 5 (22) |
1
(PhysOrg.com) -- A research team from Northeastern University and the National Institute of Standards and Technology has discovered, serendipitously, that a residue of a process used to build arrays of titania ...
Accelerators and Light Sources of Tomorrow (Part 1: From Linacs to Lasers)
Dec 22, 2009 |
4.6 / 5 (5) |
2
From their humble beginnings as offshoots of the ordinary electric light bulb, particle accelerators have evolved in surprising directions. Among the most productive and promising developments have been light ...
First Pump-Probe Experiment at Linac Coherent Light Source Completed
Nov 30, 2009 |
4.7 / 5 (12) |
0
(PhysOrg.com) -- The first experiment using the Linac Coherent Light Source to illuminate molecules via a "pump-probe" technique has been completed by an international team of more than 30 scientists from ...
First Test of New X-ray Laser Strips Neon Bare
Sep 18, 2009 |
4.5 / 5 (10) |
2
(PhysOrg.com) -- It takes a lot of energy to strip all ten electrons from an atom of neon. Doing it from the inside out, knocking away the most-closely-held, innermost electrons first, is an even rarer feat. ...
New X-ray technique illuminates reactivity of environmental contaminants
Sep 15, 2009 |
3 / 5 (2) |
0
Thanks to a new analytical method employed by researchers at the University of Delaware, scientists can now pinpoint, at the millisecond level, what happens as harmful environmental contaminants such as arsenic ...
A Kinoform's Best Friend: Diamond Refractive Lenses for Nanofocusing
Aug 03, 2009 |
4.8 / 5 (4) |
2
(PhysOrg.com) -- A team of Brookhaven and Argonne National Laboratory researchers has demonstrated a reliable path for sculpting an intricate x-ray focusing lens out of diamond. Their technique, which was ...
Jet-propelled imaging for an ultrafast light source
Jul 29, 2009 |
4.9 / 5 (11) |
1
John Spence, a physicist at Arizona State University, is a longtime user of the Advanced Light Source at Lawrence Berkeley National Laboratory, where he has contributed to major advances in lensless imaging. ...
Twinkling nanostars cast new light into biomedical imaging
Nanotechnology / Bio & Medicine
Jul 21, 2009 |
5 / 5 (2) |
1
(PhysOrg.com) -- Purdue University researchers have created magnetically responsive gold nanostars that may offer a new approach to biomedical imaging.
Laser technology creates new forms of metal and enhances aircraft performance
Nanotechnology / Nanomaterials
Jul 15, 2009 |
4.3 / 5 (9) |
6
AFOSR-funded researchers at the University of Rochester are using laser light technology that will help the military create new forms of metal that may guide, attract and repel liquids and cool small electronic ...
Scientists Shed 'Light' on Semiconductor Quandry
Jul 14, 2009 |
4.3 / 5 (3) |
2
(PhysOrg.com) -- UC San Diego scientists are using laser plasma-produced light sources to explore performance improvements of critical inspection tools for the semiconductor industry, which ultimately will ...
Vise Squad: Putting the Squeeze on a Crystal Leads to Novel Electronics
May 06, 2009 |
3.5 / 5 (4) |
0
(PhysOrg.com) -- A clever materials science technique that uses a silicon crystal as a sort of nanoscale vise to squeeze another crystal into a more useful shape may launch a new class of electronic devices ...
Major step toward less energy loss in new electromagnetic materials
Mar 03, 2009 |
4.8 / 5 (5) |
2
(PhysOrg.com) -- Researchers at Uppsala University have managed for the first time to measure magnetic properties in new materials quantitatively with the help of electron microscopy - with unparalleled precision. ...
Getting to the Heart of Stents
Nanotechnology / Bio & Medicine
Dec 09, 2008 |
4.4 / 5 (7) |
0
(PhysOrg.com) -- Using the Canadian Light Source, a team of researchers from Quebec’s Laval University and Australia’s La Trobe University has discovered how to improve the nanometers-thick layer of polymer ...
