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
Colliding auroras produce an explosion of light
Space & Earth / Space Exploration
16 hours ago |
4.8 / 5 (5) |
0
(PhysOrg.com) -- A network of cameras deployed around the Arctic in support of NASA's THEMIS mission has made a startling discovery about the Northern Lights. Sometimes, vast curtains of aurora borealis collide, ...
NASA NuSTAR Telescope Being Built at Nevis
Space & Earth / Space Exploration
14 hours ago |
5 / 5 (4) |
0
(PhysOrg.com) -- It's an unlikely place to build a NASA telescope: a leafy estate in Irvington, N.Y., that once belonged to the son of Alexander Hamilton. Inside a hangar-like building on the site, which is ...
Caltech scientists film photons with electrons
Dec 16, 2009 |
4.8 / 5 (18) |
0
(PhysOrg.com) -- Techniques recently invented by researchers at the California Institute of Technology -- which allow the real-time, real-space visualization of fleeting changes in the structure of nanoscale ...
Rare earth metal enhances phosphate glass
Dec 15, 2009 |
4.5 / 5 (2) |
0
(PhysOrg.com) -- Adding cerium oxide to phosphate glass rather than the commonly used silicate glass may make glasses that block ultraviolet light and have increased radiation damage resistance while remaining colorless, ...
Light-generating transistors to power labs on chips
Dec 11, 2009 |
5 / 5 (8) |
0
(PhysOrg.com) -- What started out as 'blue-sky' thinking by a group of European researchers could ultimately lead to the commercial mass production of a new generation of optoelectronic components for devices ...
VISTA: Pioneering new survey telescope starts work
Dec 11, 2009 |
4.9 / 5 (11) |
1
VISTA is the latest telescope to be added to ESO's Paranal Observatory in the Atacama Desert of northern Chile. It is housed on the peak adjacent to the one hosting the ESO Very Large Telescope (VLT) and shares ...
Philips electronic skin technology enables new chameleon-like ambience designs
Dec 09, 2009 |
4.1 / 5 (7) |
1
(PhysOrg.com) -- Philips Research has developed a novel color e-paper technology that opens up new design opportunities for personalizing electronic devices. This means that the color and appearance, of the ...
The 'sci' behind the 'fi'
Dec 11, 2009 |
4 / 5 (10) |
1
As the voyagers of the Starship Enterprise boldly went to explore new worlds week after week on Star Trek, they used a host of futuristic technologies — including tricorders, holodecks, teleportation systems ...
Fermi Telescope Peers Deep into Microquasar (w/ Video)
Nov 27, 2009 |
4.8 / 5 (17) |
0
(PhysOrg.com) -- NASA's Fermi Gamma-ray Space Telescope has made the first unambiguous detection of high-energy gamma-rays from an enigmatic binary system known as Cygnus X-3. The system pairs a hot, massive ...
Galaxy Collision Switches on Black Hole
Dec 10, 2009 |
4.5 / 5 (4) |
1
(PhysOrg.com) -- This composite image of data from three different telescopes shows an ongoing collision between two galaxies, NGC 6872 and IC 4970.
Interactive digital art show opens in London
Dec 09, 2009 |
not rated yet |
0
The creative side of information technology went on display in London this week, in an arresting new interactive show including glowing reeds and a blinking mechanical eye.
Scientists demonstrate multibeam, multi-functional lasers
Nov 30, 2009 |
4.4 / 5 (7) |
0
An international team of applied scientists from Harvard, Hamamatsu Photonics, and ETH Zürich have demonstrated compact, multibeam, and multi-wavelength lasers emitting in the invisible part of the light spectrum ...
A light touch: Iron complexes as efficient catalysts for the light-driven extraction of hydrogen from water
Dec 02, 2009 |
5 / 5 (4) |
3
(PhysOrg.com) -- Hydrogen is a promising alternative energy carrier that can be efficiently converted into electrical energy in fuel cells. One hurdle to the introduction of sustainable hydrogen technology is the fact that ...
Qualcomm's next e-book to use a mirasol display
Electronics / Consumer & Gadgets
Nov 20, 2009 |
4.7 / 5 (11) |
2
(PhysOrg.com) -- Qualcomm subsidiary Mirasol is developing a new e-book reader with a color display that uses ambient light. The reader will be capable of displaying video smoothly, but the new features will ...
INL develops safer, more efficient nuclear fuel for next-gen reactors
Nov 30, 2009 |
4.5 / 5 (15) |
7
As the nation ponders its energy choices, Americans keep asking themselves: how can the country make better use of its resources and emit fewer greenhouse gases without hurting U.S. industries? A research ...
