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.
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News tagged with light source
First Pump-Probe Experiment at Linac Coherent Light Source Completed
Nov 30, 2009 |
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(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 ...
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Blushing dusty nebula
18 hours ago |
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On Earth, we tend to find dust nothing more than a nuisance that blankets our furniture and causes us to sneeze. Cosmic dust can also be a hindrance to astronomers because cameras using visible light cannot ...
Scientists demonstrate multibeam, multi-functional lasers
Nov 30, 2009 |
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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 ...
Black hole caught zapping galaxy into existence?
Nov 30, 2009 |
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(PhysOrg.com) -- Which come first, the supermassive black holes that frantically devour matter or the enormous galaxies where they reside? A brand new scenario has emerged from a recent set of outstanding ...
Mad as hell? New discoveries about the experience of anger
Medicine & Health / Psychology & Psychiatry
Nov 30, 2009 |
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Younger people, those with children and less-educated individuals are more likely to experience anger, according to new UofT research that examines one of the most common negative emotions in society.
Bacterial gut symbionts are tightly linked with the evolution of herbivory in ants
19 hours ago |
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Broadly speaking, ants have two different feeding strategies. A large proportion of all species are "carnivorous," meaning that they are generalist predators feeding on other small animals or scavenging on ...
Tuberculosis: On the path to prevention
20 hours ago |
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Why do some people who are exposed to tuberculosis not become infected or develop the disease? Dr. Erwin Schurr and his team at the Research Institute from the McGill University Health Centre (RI-MUHC), in collaboration with ...
ERK's got rhythm: Protein that controls cell growth found to cycle in and out of cell nucleus (w/ Video)
23 hours ago |
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Time-lapsed video of individual breast tissue cells reveals a never-before-seen event in the life of a cell: a protein that cycles between two major compartments in the cell. The results give researchers a more complete view ...
Research sheds new light on epilepsy
Nov 30, 2009 |
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Pioneering research using human brain tissue removed from people suffering from epilepsy has opened the door to new treatments for the disease.
Innovation puts next-generation solar cells on the horizon
20 hours ago |
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In a world first, a Monash University-led international research team has developed an innovative way to boost the output of the next generation of solar cells.
It takes two to infect: Structural biologists shed light on mechanism of invasion protein
Nov 30, 2009 |
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Bacteria are quite creative when infecting the human organism. They invade cells, migrate through the body, avoid an immune response and misuse processes of the host cell for their own purposes. To this end every bacterium ...
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