News tagged with sodium ions


Renewable Energy Made by Mixing Salt and Fresh Water

Renewable Energy Made by Mixing Salt and Fresh Water

Technology / Energy

created Sep 02, 2009 | popularity 4.3 / 5 (27) | comments 6

(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 ...


Scientists closer to developing salt-tolerant crops

Scientists closer to developing salt-tolerant crops

Biology / Biotechnology

created Jul 07, 2009 | popularity 5 / 5 (3) | comments 0

An international team of scientists has developed salt-tolerant plants using a new type of genetic modification (GM), bringing salt-tolerant cereal crops a step closer to reality.





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Doctors Warn Against Holiday Heart Attack Spike

Medicine & Health / Health

created Dec 03, 2009 | popularity 4 / 5 (1) | comments 0

(PhysOrg.com) -- Some studies indicate that death rates from heart attacks and stroke as well as non-heart-related causes spike during the holiday season.


A light touch: Iron complexes as efficient catalysts for the light-driven extraction of hydrogen from water

Chemistry / Materials Science

created Dec 02, 2009 | popularity 5 / 5 (4) | comments 3

(PhysOrg.com) -- Hydrogen is a promising alternative energy carrier that can be efficiently converted into electrical energy in fuel cells. One hurdle to the introduction of sustainable hydrogen technology is the fact that ...


Acid test: Study reveals both losers and winners of CO2-induced ocean acidification

Acid test: Study reveals both losers and winners of CO2-induced ocean acidification

Space & Earth / Earth Sciences

created Dec 01, 2009 | popularity 4.4 / 5 (11) | comments 8

(PhysOrg.com) -- As the world’s seawater becomes more acidic due to rising atmospheric carbon dioxide, some shelled marine creatures may actually become bigger and stronger, according to a new study.


Microscopy reveals structure of calcite shells

Microscopy reveals structure of calcite shells

Chemistry / Materials Science

created Nov 30, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Lara Estroff and colleagues have taken a deep, detailed look at the way lab-created calcite crystals, similar to those found in nature, grow in tandem with proteins and other large molecules.


Bacteria

Plasma produces KO cocktail for MRSA

Physics / General Physics

created Nov 26, 2009 | popularity 4.9 / 5 (16) | comments 3

MRSA (methicillin-resistant Staphylococcus Aureus) and other drug-resistant bacteria could face annihilation as low-temperature plasma prototype devices have been developed to offer safe, quick, easy and un ...


Lose the fat: Targeting grease to curtail sewer overflows

Space & Earth / Environment

created Nov 23, 2009 | popularity not rated yet | comments 0

Sewer overflows are a nasty business, posing dangers to human health and the environment. North Carolina State University is launching a new project with funding from the U.S. Environmental Protection Agency (EPA) that targets ...


popcorn

Popcorn at the movies still an unhealthy treat

Medicine & Health / Health

created Nov 23, 2009 | popularity 4.5 / 5 (2) | comments 5

(PhysOrg.com) -- A study carried out in 1994 by advocacy group CSPI (Center for Science in the Public Interest) found that popcorn being sold by cinema chains in the US was high in saturated fat and calories, ...


Cassini's Big Sky: The View from the Center of Our Solar System

Cassini's Big Sky: The View from the Center of Our Solar System

Space & Earth / Space Exploration

created Nov 20, 2009 | popularity 4.8 / 5 (15) | comments 1

(PhysOrg.com) -- When NASA's Cassini spacecraft began orbiting Saturn five years ago, a dozen highly-tuned science instruments set to work surveying, sniffing, analyzing and scrutinizing the Saturnian system.


Liquid battery big enough for the electric grid?

Liquid battery big enough for the electric grid?

Technology / Energy

created Nov 19, 2009 | popularity 4.4 / 5 (7) | comments 3

(PhysOrg.com) -- There's one major drawback to most proposed renewable-energy sources: their variability. The sun doesn't shine at night, the wind doesn’t always blow, and tides, waves and currents fluctuate. ...


Battery Research Aims To Store Renewable Energy

Battery Research Aims To Store Renewable Energy

Technology / Energy

created Nov 19, 2009 | popularity 4.1 / 5 (13) | comments 6

The biggest chemical battery in the United States is located near Interstate 90 in the small town of Luverne, Minn. The 80 ton device -- the size of two tractor-trailers stacked on top of each other -- stores ...



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