Solar cells convert three-quarters of the energy contained in the Sun's spectrum into electricity – yet the infrared spectrum is entirely lost in standard solar cells. In contrast, black silicon solar cells are specifically ...
Energy & Green Tech
Oct 1, 2012
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This incredible image of Earth taken from space marks the start of new analysis that could change the way cities are built.
Earth Sciences
Nov 28, 2016
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(PhysOrg.com) -- How were millions of young stars able to form at the center of our Milky Way galaxy in the presence of an enormous black hole with a mass 4 million times that of the sun? This and other important questions ...
Astronomy
Aug 26, 2010
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(Phys.org)—Researchers from North Carolina State University have developed a way to melt or "weld" specific portions of polymers by embedding aligned nanoparticles within the materials. Their technique, which melts fibers ...
Nanomaterials
Feb 21, 2013
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On September 6, 2009, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra satellite captured this simulated natural color image of the Station fire, burning in the San Gabriel ...
Space Exploration
Sep 9, 2009
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By taking a "bottom-up" approach, researchers at the University of Illinois at Urbana-Champaign have observed for the first time that "size does matter" in regards "pyroelectricity"—the current/voltage developed in response ...
Nanophysics
Jan 8, 2013
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(Phys.org) —NASA engineer Acey Herrera recently checked out copper test wires inside the thermal shield of the Mid-Infrared Instrument, known as MIRI, that will fly aboard NASA's James Webb Space Telescope. The shield is ...
Space Exploration
May 9, 2013
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The Australian jewel beetle Merimna atrata has several heat sensors. Originally, it was thought to use them to detect forest fires as it lays its eggs in the wood of burned eucalyptus trees. Researchers at the University ...
Ecology
Feb 16, 2018
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NASA's Nancy Grace Roman Space Telescope team recently flight-certified all 24 of the detectors the mission needs. When Roman launches in the mid-2020s, these devices will convert starlight into electrical signals, which ...
Astronomy
Jun 9, 2021
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The U.S. Army Corps of Engineers detonated explosives at the Birds Point levee near Wyatt, Missouri, at 10:02 p.m. on May 2, 2011. Water from the intentional breach flooded a 130,000-acre stretch of land. Two more breaches ...
Earth Sciences
May 12, 2011
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