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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Gadgets: Gift ideas for your holiday shopping
Electronics / Consumer & Gadgets
20 hours ago |
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Black Friday has come and gone and if you're like me, you barely made a dent in your holiday shopping list.
Case Western Reserve researchers' new pathway discovery published as 'Paper of the Week'
Dec 04, 2009 |
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Case Western Reserve University researchers, from the School of Medicine's Department of Nutrition, discovered two new metabolic pathways by which products of lipid peroxidation and some drugs of abuse, known as 4-hydroxyacids, ...
Studying a Star Before it is Born
Dec 04, 2009 |
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(PhysOrg.com) -- The first phase of a star's formation are thought to begin deep inside a natal cloud of gas and dust. In the earliest stages, material coalesces under the influence of gravity into so-called ...
Fine-tuned: A wholly new approach to tuning a laser's frequency
Dec 04, 2009 |
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(PhysOrg.com) -- For more than 30 years, scientists have been trying to harness the power of terahertz radiation. Tucked between microwaves and infrared rays on the electromagnetic spectrum, terahertz rays ...
NASA's WISE infrared satellite to reveal new galaxies, stars, asteroids
Dec 04, 2009 |
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(PhysOrg.com) -- Data from the satellite, says principal investigator and UCLA professor Edward Wright, will help scientists answer fundamental questions about the history of our solar system, the Milky Way ...
Nature's fine designs: Scientists find modern lessons in ancient creations
Dec 04, 2009 |
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(PhysOrg.com) -- Nature and its bottom-up processes for creating robust and responsive materials are inspiring new generations of synthetic materials and creative design.
Study links real-time data to flu vaccine strategies
Dec 03, 2009 |
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Adaptive vaccination strategies, based on age patterns of hospitalizations and deaths monitored in real-time during the early stages of a pandemic, outperform seasonal influenza vaccination allocation strategies, according ...
Elevated CO2 levels may mitigate losses of biodiversity from nitrogen pollution
Dec 03, 2009 |
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Rising levels of carbon dioxide may overheat the planet and cause other environmental problems, but fears that rising CO2 levels could directly reduce plant biodiversity can be allayed, according to a new study by a University ...
Team using Subaru Telescope makes major discovery
Dec 03, 2009 |
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An international team of scientists that includes an astronomer from Princeton University has made the first direct observation of a planet-like object orbiting a star similar to the sun.
Carbon and oxygen in tree rings can reveal past climate information
Space & Earth / Earth Sciences
Dec 03, 2009 |
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The analysis of carbon and oxygen isotopes embedded in tree rings may shed new light on past climate events in the Mackenzie Delta region of northern Canada.
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