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Latest Nonmetals Stories

2011-03-16 18:19:09

Scientists are reporting that the controversy surrounding whether selenium can fight cancer in humans might come down to which form of the essential micronutrient people take. It turns out that not all "seleniums" are the same "” the researchers found that one type of selenium supplement may produce a possible cancer-preventing substance more efficiently than another form of selenium in human cancer cells. Their study appears in the ACS' journal Biochemistry. Hugh Harris and colleagues...

2011-03-11 14:38:22

ASSR could reduce amount of heat needed in purification process Natural gas extracted from the nation's coal beds and methane-rich geologic features must first be purged of hydrogen sulfide before it can be used as fuel. Until now, processing methods have often proved to be inefficient, requiring large amounts of heat. But a team of Battelle researchers at the Department of Energy's Pacific Northwest National Laboratory has discovered a method that could dramatically cut the amount of heat...

2011-02-20 21:46:00

Inexpensive hydrogen for automotive or jet fuel may be possible by mimicking photosynthesis, according to a Penn State materials chemist, but a number of problems need to be solved first. "We are focused on the hardest way to make fuel," said Thomas Mallouk, Evan Pugh Professor of Materials Chemistry and Physics. "We are creating an artificial system that mimics photosynthesis, but it will be practical only when it is as cheap as gasoline or jet fuel." Splitting water into hydrogen and oxygen...

2011-02-10 01:19:21

Nano-scale lattice developed at Boston College a promising platform for clean energy applicationsCoating a lattice of tiny wires called Nanonets with iron oxide "“ known more commonly as rust "“ creates an economical and efficient platform for the process of water splitting, an emerging clean fuel science that harvests hydrogen from water, Boston College researchers report in the online edition of the Journal of the American Chemical Society. Assistant Professor of Chemistry...

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2011-02-03 12:16:12

Scientists and artists collaborate on accompanying works to address looming environmental issueFertilizer is rarely an inspiration for an art show, but this week at Arizona State University (ASU), sustainability, fertilizer and phosphorus scarcity will provide fuel for creative vision.The art show, a juried exhibition with works by artists from Phoenix, Chicago, Portland and Houston, was created in partnership with scientists engaged in the Sustainable Phosphorus Summit, to take place Feb....

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2010-12-24 08:26:07

A team of American and Swiss researchers have reportedly developed a unique device that can harness the Sun's energy and turn it into fuel. The prototype mechanism, which was the subject of an article by BBC News Science Reporter Neil Bowdler on Thursday, captures the Sun's rays and concentrates it with a quartz window, focusing it onto a metal oxide known as cerium oxide, or ceria. Ceria tends to exhale oxygen when it gets hot and inhale it as it cools, and in the device, that property is...

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2010-11-23 10:56:26

Mechanical engineering at the molecular level In the nanoworld many things are different. Scientists only recently started unveiling and harnessing the underlying laws and principles. A team associated with Professor Johannes Barth from the Physics Department of the TU Muenchen have now succeeded in capturing rod-shaped molecules in a two-dimensional network in such a way that they autonomously form small rotors that turn in their honeycomb-like cages. Nature itself provides the role model...

2010-11-01 09:30:31

(Ivanhoe Newswire) -- A team of scientists have discovered that evidence linking the "Snowball Earth" glacial events to the emergence of complex life. The Snowball Earth hypothesis states that the Earth was covered from pole to pole by a thick sheet of ice lasting, on several occasions, for millions of years. These glaciations were the most severe in Earth history. They occurred 750 to 580 million years ago. The researchers argue that the oceans in the aftermath of these events were rich in...

2010-10-29 13:29:07

A University of Alberta geomicrobiologist and his PhD student are part of a research team that has identified phosphorus as the mystery ingredient that pushed oxygen levels in the oceans high enough to establish the first animals on Earth 750 million years ago. By examining ancient-ocean sediments, Kurt Konhauser, student Stefan Lalonde and other colleagues discovered that as the last glacier to encircle Earth receded, leaving behind glacial debris containing phosphorus that washed into the...

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2010-10-27 14:10:00

A spike in ancient marine phosphorus concentrations from 750 to 635 million years ago is linked to emergence of complex life, UC Riverside researchers say A team of scientists, led by biogeochemists at the University of California, Riverside, has found new evidence linking "Snowball Earth" glacial events to the rise of early animals. The controversial Snowball Earth hypothesis posits that the Earth was covered from pole to pole by a thick sheet of ice lasting, on several occasions, for...


Latest Nonmetals Reference Libraries

Acid Rain
2013-04-01 10:21:17

Acid rain is any form of precipitation that is unusually acidic, meaning that is possesses high levels of hydrogen ions. It can have harmful effects on aquatic animals, plants, and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules within the atmosphere to produce acids. Nitrogen oxides can be produced naturally by lightening strikes. Sulfur dioxide can be produced naturally by volcanic eruptions. The chemicals that are...

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