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Revealing how a battery material works
Since its discovery 15 years ago, lithium iron phosphate (LiFePO4) has become one of the most promising materials for rechargeable batteries because of its stability, durability, safety and ability to deliver a lot of power at once. It has been the focus of major research projects around the world, and a leading technology used in everything from power tools to electric vehicles. But despite ...
www.physorg.com
Government Fails to Assess Potential Dangers of Nanotechnology
Pesticide DDT , industrial lubricants PCBs and now plastic BPA (bisphenol A) are all widely used industrial chemical compounds that have been discovered to cause ills such as cancer and/or environmental damage. Worried that the latest chemical craze--nanoparticles (molecules and even atoms engineered at the scale of one billionth of a meter or smaller)--may follow suit, a panel of scientists is ...
www.scientificamerican.com
Where Do Aurorae Come From?
Aurora borealis above Bear Lake in Alaska. Credit: U.S. Air Force photo by Senior Airman Joshua Strang The Sun is hotting up, and we can see the results right here on Earth. Across the northern hemisphere, fantastic light displays have been visible of late, and the frequency of these events is set only to increase as the Sun heads toward a peak in its magnetic activity. [More]
www.scientificamerican.com
New graphene property may please vodka fans
Graphene, the 21st century's most promising new material, has acquired yet another entry in its burgeoning CV. A...
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Solving energy problems, one molecule at a time
Jeffrey Grossman says Cambridge has a better climate than California — for carrying out materials science research, that is. That’s why Grossman decided, two years ago, to make the move from the University of California at Berkeley to a position at MIT.
www.physorg.com
Does Water Ice Lurk Beneath the Poles of Vesta ?
The mysterious asteroid Vesta may well have more surprises in store. Despite past observations that Vesta would be nearly bone dry, newly published research indicates that about half of the giant asteroid is sufficiently cold and dark enough that water ice could theoretically exist below the battered surface. Scientists working at NASA’s Goddard Space Flight [...]
www.universetoday.com
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