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Gamle-ged

Profile Information

Gender: Male
Hometown: Nokomis, FL
Home country: US
Member since: Wed Nov 5, 2014, 12:58 AM
Number of posts: 27,327

About Me

Retired 3x, living comfortably on the Gulf Coast, biking, beachwalking, lifting free weights, eating mostly properly, keeping my mind active, in my seventh decade, intending to give Methuselah a run for the record...

Journal Archives

Feels like WWII, where most of America's population are Jewish and the Hillary supporters are N...

... ot...

So, the possibilities were the choices of Hillary being a criminal or being an idiot. Idiot won...

... not that criminality is completely off the table, the Clinton Slush-dation will dangle for some time, yet, even if her abominable security procedures won't put her in a federal pen...

Scientists made it cheaper to produce hydrogen from water

A hydrogen-fuel economy could finally become a reality with the recent discovery of a cheap, stable and efficient means of getting hydrogen from water. If a cheap, stable and efficient way could be found to produce hydrogen from water, a hydrogen-fuel economy could finally become a reality. Scientists at KTH Royal Institute of Technology in Stockholm now report that they have unlocked one major barrier to exploiting this renewable energy source.

Because the best-performing catalysts for electrochemical oxidation, or "water splitting", are expensive precious metals, the research team led by KTH Professor Licheng Sun is one of many worldwide searching for cheaper alternatives. Sun had earlier developed molecular catalysts for water oxidation (Nature Chem. 2012, 4, 418) with an efficiency approaching that of natural photosynthesis.

Last week his team reported in Nature Communications that it has discovered that a new material composed of common earth-abundant elements could be used as a catalyst for water splitting, which could help change the economics of large scale hydrogen fuel production.

Researcher Ke Fan says that the new material is a monolayered double hydroxide involving nickel and vanadium, which offers a state-of-art electrocatalyst for water oxidation. The low-cost, highly efficient nickel-vanadium monolayer outperforms other electrocatalysts that are composed of non-precious materials, Fan says. And it offers a competitive, cheap alternative to catalysts that rely on more expensive, precious materials, such as iridium oxide (IrO2) or ruthenium oxide (RuO2). "This is the first time that the metal, vanadium, has been used to dope nickel hydroxide to form a water oxidation catalyst, and it works very well—even beyond our expectations," Fan says. "No doubt this material can greatly expand the scope of non-precious metal elements of electrocatalysts, and it opens new areas for water splitting."


http://phys.org/news/2016-06-scientists-cheaper-hydrogen.html#nRlv

Studies find 'Super Bacteria' in Rio's  Olympic venues, top beaches

Scientists have found dangerous drug-resistant "super bacteria" off beaches in Rio de Janeiro that will host Olympic swimming events and in a lagoon where rowing and canoe athletes will compete when the Games start on Aug. 5.

The findings from two unpublished academic studies seen by Reuters concern Rio's most popular spots for tourists and greatly increase the areas known to be infected by the microbes normally found only in hospitals.

<snip>

Waste from countless hospitals, in addition to hundreds of thousands of households, pours into storm drains, rivers and streams crisscrossing Rio, allowing the super bacteria to spread outside the city's hospitals in recent years.

Renata Picao, a professor at Rio's federal university and lead researcher of the first study, said the contamination of Rio's famous beaches was the result of a lack of basic sanitation in the metropolitan area of 12 million people.


http://www.aol.com/article/2016/06/10/exclusive-studies-find-super-bacteria-in-rios-olympic-venues/21393289/?utm_source=zergnet.com&utm_medium=referral&utm_campaign=zergnet_1065707&ncid=txtlnkusaolp00001361
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