Posts Tagged ‘copper’
Humans polluted with lead 8,000 years ago
U. PITTSBURGH (US) — The oldest evidence of lead pollution caused by humans has been discovered in Michigan’s Upper Peninsula. Continue…
Wednesday, June 12, 2013 11:40 - 0 Comments
Health & Medicine - Dec 5, 2012 10:36 - 0 Comments
Bad bugs can’t swap genes on copper
U. SOUTHAMPTON (UK) — New research shows that copper can prevent horizontal transmission of genes, which has contributed to the increasing number of antibiotic-resistant infections worldwide. (more…)
Health & Medicine - Jul 16, 2012 10:21 - 1 Comment
Copper cookware kills more microbes
U. ARIZONA (US) — Preparing food on surfaces made with copper alloys may prevent food poisoning, according to a study with Salmonella. (more…)
Earth & Environment - Apr 9, 2012 14:45 - 0 Comments
Earth keeps deep-seated grip on copper
RICE (US) — Nature conspires at scales both large and small—from tectonic plates down to molecular bonds—to keep most of Earth’s copper buried dozens of miles below ground. (more…)
Science & Technology - Feb 7, 2012 16:11 - 0 Comments
Thanks to copper, sulfur’s stink repels us
DUKE (US) — Copper ions may be the cause of our sensitivity to sulfurous odors, like skunks, volcanic gases, and armpits. (more…)
Science & Technology - Nov 28, 2011 12:56 - 3 Comments
Electrode for durable batteries on the grid
STANFORD (US) — A new type of battery electrode could make large-scale storage for solar and wind power more feasible. (more…)
Science & Technology - Sep 27, 2011 13:00 - 4 Comments
Cheaper touch screens from copper film
DUKE (US) — A new way to make flexible materials from copper nanowires could drive down the cost of touch screen displays used in mobile devices and tablets, like the iPad. (more…)
Science & Technology - Jul 5, 2011 13:25 - 0 Comments
120 million-year-old bird gets an X-ray
U. PENNSYLVANIA (US) — Trace metals in fossils are offering clues about the pigmentations of creatures dead for more than a hundred million years. (more…)
Science & Technology - Jun 14, 2011 12:40 - 0 Comments
Native tools: Shape copper with fire, stone
NORTHWESTERN (US) — Material scientists have recreated techniques used by Native American coppersmiths more than 600 years ago to work copper nuggets into sacred regalia. (more…)
Science & Technology - Jun 7, 2010 9:00 - 0 Comments
Bendy copper nanowire akin to ‘foldable iPad’
DUKE (US)—Chemists have perfected a simple way to make inexpensive copper nanowires in quantity that are so small they are transparent, making them ideal for thin-film solar cells, flat-screen TVs, computers, and flexible displays. (more…)
Science & Technology - Jan 19, 2010 13:11 - 2 Comments
Superconductivity in iron compound
CORNELL—A surprising discovery of electronic liquid crystal states in an iron-based, high-temperature superconductor is another step toward understanding superconductivity and using it in such applications as power transmission. (more…)
Science & Technology - Nov 12, 2009 14:57 - 0 Comments
Growing graphene without the mess
CORNELL (US)—Single layers of carbon atoms, called graphene sheets, are lightweight, strong, electrically semi-conducting—and notoriously difficult and expensive to make. Now, a research team has invented a simple way to make graphene electrical devices by growing the graphene directly onto a silicon wafer. (more…)
Health & Medicine - Nov 10, 2009 15:46 - 0 Comments
Molecules built to break up Alzheimer’s clumps
U. MICHIGAN (US)—Scientists have developed “bi-functional” small molecules that not only grab metal ions but also interact with peptides that clump to form plaques in the brain. (more…)
Science & Technology - Aug 21, 2009 15:51 - 2 Comments
Solar cells nano-inked onto rooftops
TEXAS-AUSTIN (US)—Solar cells may soon be much cheaper to produce thanks to nanoparticle “inks” that could potentially be painted onto buildings or rooftops to absorb sunlight. (more…)
Science & Technology - Mar 6, 2009 18:39 - 2 Comments
Fine print so small it’s subatomic
STANFORD (US)—How tiny is the world’s smallest writing? The letters in the words written by Standford University researchers are assembled from subatomic-sized bits as small as 0.3 nanometers—or roughly one third of a billionth of a meter.
