Related topics: electrons , wavelength , optics express , led
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
Tiny nano-electromagnets turn a cloak of invisibility into a possibility
Dec 22, 2009 |
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A team of researchers at the FOM institute AMOLF (The Netherlands) has succeeded for the first time in powering an energy transfer between nano-electromagnets with the magnetic field of light.
Accelerators and Light Sources of Tomorrow (Part 1: From Linacs to Lasers)
Dec 22, 2009 |
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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 ...
Physicists propose quantum entanglement for motion of microscopic objects
Dec 21, 2009 |
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Researchers at the California Institute of Technology (Caltech) have proposed a new paradigm that should allow scientists to observe quantum behavior in small mechanical systems.
Tiny whispering gallery: Sensor can detect a single nanoparticle and take its measurement
Dec 18, 2009 |
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(PhysOrg.com) -- Nanotechnology has already made it to the shelves of your local pharmacy and grocery: nanoparticles are found in anti-odor socks, makeup, makeup remover, sunscreen, anti-graffiti paint, home ...
Light-Driven Nanorod Could Roll on Water
Dec 18, 2009 |
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(PhysOrg.com) -- In a recent study, researchers have examined the possibility of rolling a nanorod on the surface of water. On the macroscale, perhaps the closest analogy might be the sport of logrolling, ...
NASA NuSTAR Telescope Being Built at Nevis
Space & Earth / Space Exploration
Dec 17, 2009 |
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(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 ...
Colliding auroras produce an explosion of light
Space & Earth / Space Exploration
Dec 17, 2009 |
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(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, ...
Caltech scientists film photons with electrons
Dec 16, 2009 |
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(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 |
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(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, ...
The 'sci' behind the 'fi'
Dec 11, 2009 |
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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 ...
Light-generating transistors to power labs on chips
Dec 11, 2009 |
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(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 |
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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 ...
Galaxy Collision Switches on Black Hole
Dec 10, 2009 |
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(PhysOrg.com) -- This composite image of data from three different telescopes shows an ongoing collision between two galaxies, NGC 6872 and IC 4970.
Philips electronic skin technology enables new chameleon-like ambience designs
Dec 09, 2009 |
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(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 ...
Interactive digital art show opens in London
Dec 09, 2009 |
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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.
