The quest to harness a broader spectrum of sunlight's energy to produce electricity has taken a radically new turn, with the proposal of a "solar energy funnel" that takes advantage of materials under elastic strain.
Optics & Photonics
Nov 26, 2012
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(Phys.org)—The mineral properties of the aerosol particles and the wavelength distribution of incident light combine to determine whether a dust particle reflects radiation and cools the local atmosphere, absorbs radiation ...
Earth Sciences
Oct 31, 2012
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Just as gardeners can use 'growth lamps' to stimulate plant growth, materials scientists can now promote uniform growth of decahedron-shaped silver nanoparticles while they are in solution. These 10-faced solids, only tens ...
Nanophysics
Oct 10, 2012
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Work led by Amita Pathak at the Indian Institute of Technology has produced water-soluble C-dots that selectively emit light across the entire visible range without any surface coating. The properties of these new C-dots ...
Nanomaterials
Sep 14, 2012
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(Phys.org) -- Saturn was playing the lightning storm blues. NASA's Cassini spacecraft has captured images of last year's storm on Saturn, the largest storm seen up-close at the planet, with bluish spots in the middle of swirling ...
Space Exploration
Jul 19, 2012
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(PhysOrg.com) -- NASA unveiled a new atlas and catalog of the entire infrared sky today showing more than a half billion stars, galaxies and other objects captured by the Wide-field Infrared Survey Explorer (WISE) mission. ...
Astronomy
Mar 15, 2012
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Ten years ago, on Feb. 19, 2002, the Thermal Emission Imaging System (THEMIS), a multi-band camera on NASA's Mars Odyssey orbiter, began scientific operations at the Red Planet. Since then the camera has circled Mars nearly ...
Space Exploration
Mar 1, 2012
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(PhysOrg.com) -- A new image from the APEX (Atacama Pathfinder Experiment) telescope in Chile shows a sinuous filament of cosmic dust more than ten light-years long. In it, newborn stars are hidden, and dense clouds of gas ...
Astronomy
Feb 15, 2012
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(PhysOrg.com) -- The Eagle Nebula as never seen before. In 1995, the Hubble Space Telescope's 'Pillars of Creation' image of the Eagle Nebula became one of the most iconic images of the 20th century. Now, two of ESA's orbiting ...
Astronomy
Jan 17, 2012
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(PhysOrg.com) -- The constellation Cygnus, now visible in the western sky as twilight deepens after sunset, hosts one of our galaxy's richest-known stellar construction zones. Astronomers viewing the region at visible wavelengths ...
Astronomy
Nov 28, 2011
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