News tagged with negative ion
The interplay of dancing electrons
Negative ions play an important role in everything from how our bodies function to the structure of the universe. Scientists from the University of Gothenburg, Sweden, have now developed a new method that makes it possible ...
Nov 29, 2011 |
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Putting the squeeze on batteries (w/ video)
People depend on lithium-ion batteries every day to power cellphones, laptops and other electronic devices, and perhaps one day to run cars. This video shows how Craig Arnold, an associate professor of mechanical ...
Technology / Energy & Green Tech
Nov 22, 2011 |
3 / 5 (2) |
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New material shows promise for trapping pollutants
(PhysOrg.com) -- Water softening techniques are very effective for removing minerals such as calcium and magnesium, which occur as positively-charged ions in "hard" water. But many heavy metals and other inorganic ...
Sep 06, 2011 |
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Exposing ZnO nanorods to visible light removes microbes
The practical use of visible light and zinc oxide nanorods for destroying bacterial water contamination has been successfully demonstrated by researchers at the Asian Institute of Technology (AIT). Nanorods grown on glass ...
Nanotechnology / Nanomaterials
May 12, 2011 |
5 / 5 (2) |
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Transforming nanowires into nano-tools using cation exchange reactions
A team of engineers from the University of Pennsylvania has transformed simple nanowires into reconfigurable materials and circuits, demonstrating a novel, self-assembling method for chemically creating nanoscale ...
Oct 23, 2009 |
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Renewable Energy Made by Mixing Salt and Fresh Water
(PhysOrg.com) -- When a river flows into the sea, the location is more than just a haven for water commerce. The mixing of fresh and salt water that occurs at an estuary also dissipates energy, as the different ...
Technology / Energy & Green Tech
Sep 02, 2009 |
4.3 / 5 (29) |
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