News

Switchgrass Lessens Soil Nitrate Loss Into Waterways

By planting switchgrass and using certain agronomic practices, farmers can significantly reduce the amount of nitrogen and nitrates that leach into the soil, according to Iowa State University research.

Posted in: GDM, News, News, Biomass, Energy, Renewable Energy, Green Design & Manufacturing, Remediation Technologies
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With the prevalence of e-readers, will e-books eventually replace printed books?

This week's Question of the Week concerns the battle between digital volumes and their printed counterparts. From Amazon's Kindle and Apple's iPad to Sony's e-Reader and Barnes & Noble's Nook, digital reading is obviously here to stay. This is especially true when you take into account how Amazon recently reported that for the first time, e-book sales have overtaken hardcover sales. And, because of their own plummeting sales, mega-retailer Barnes & Noble is currently looking for a buyer to purchase the bookstore chain.

What do you think? With the prevalence of e-readers, will e-books eventually replace printed books? Yes or no?

Posted in: Question of the Week
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Is WikiLeaks a threat to national security?

This week's question concerns the recent story about the nearly 92,000 classified U.S. Military documents leaked by the Web site WikiLeaks.org. The organization's Web site claims, "We believe that transparency in government activities leads to reduced corruption, better government, and stronger democracies"; however, critics of the site maintain that it jeopardizes military operations and endangers the privacy rights of others.

What do you think? Is WikiLeaks a threat to national security? Yes or no?

Posted in: Question of the Week
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Making Hydrogen From Waste Vegetable Oil

Researchers at the University of Leeds have found an energy-efficient way to make hydrogen out of used vegetable oils discarded by restaurants and other establishments. The process generates some of the energy needed to make the hydrogen gas itself and is also essentially carbon-neutral.

Posted in: GDM, News, News, Alternative Fuels, Energy, Energy Efficiency, Green Design & Manufacturing, Greenhouse Gases
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Metal Alloy Increases Cooling Efficiency, Reduces CO2 Emissions

Researchers at the University of Maryland are developing a new "thermally elastic" metal alloy for use in advanced refrigeration and air conditioning systems. The technology promises far greater efficiency and reductions in greenhouse gas emissions.

Posted in: GDM, News, News, Energy, Energy Efficiency, Green Design & Manufacturing, Greenhouse Gases
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Should brain scans be admissible as legal evidence?

This week's question concerns brain scans and the legal system. In 2008 a judge in India convicted a woman of murdering her fiancee based partly on brain scan evidence that gauged her ability to remember details of the crime. And in the US, fMRI scans have already found their way into courtrooms and more attempts are on the horizon. In response, two psychologists and a law expert from Stanford University conducted a study to determine how much information about memories can be seen in brain activity. Using fMRI to scan the brains of healthy adults, the researchers were able to measure how strong their subjects' sense of a specific memory was; but they could not tell for sure whether the memories themselves were based on a recollection of an actual experience.

What do you think? Should brain scans be admissible as legal evidence?

Posted in: Question of the Week
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Introducing the First Solar & Wind e-zine

The latest e-zine from Green Design & Manufacturing is here! The premiere issue of Solar and Wind Power features articles, tech briefs, application stories, and more regarding alternative energy solutions.

Posted in: GDM, News, Energy, Energy Efficiency, Energy Storage, Renewable Energy, Solar Power, Wind Power
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Was the discovery of Russian spies still operating in the US surprising?

This week's question concerns the recent discovery of Russian spies still operating in the US. In June, authorities uncovered a Russian spy ring of 10 individuals operating in New York and Cambridge. Last week, the US and Russian governments completed a "spy swap" in Vienna.

What do you think? Was the discovery of Russian spies still operating in the US surprising?

Posted in: Question of the Week
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Bio-Based Process for Producing Fuel Additive

A new bio-based method for producing a much-used fuel additive and industrial chemical, which is currently made from petroleum products, has been developed by an Iowa State University researcher.

Posted in: GDM, News, News, Alternative Fuels, Biomass, Energy, Green Design & Manufacturing, Transportation
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Molecules Found in Blue Jean Dyes May Lead to Better Solar Cells

Cornell University researchers have discovered a simple process – employing molecules typically used in blue jean and ink dyes – for building an organic framework that could lead to economical, flexible, and versatile solar cells.

Posted in: GDM, News, News, Energy, Energy Efficiency, Renewable Energy, Solar Power
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