Home » Archives by category » News (Page 863)
Microbial fuel cell produces hydrogen from wastewater without wasting energy

Back in 2005, Bruce Logan and his team of Penn State researchers developed a microbial fuel cell capable of converting poop into power . Now, Logan has refined his system to the point where it can produce hydrogen from wastewater or biodegradable organic materials without using a drop of grid electricity, and without emitting even a hint of carbon dioxide. His approach, outlined in the September 19th issue of the Proceedings of the National Academy of Sciences, involves something known as reverse-electrodialysis (RED) — a process that harvests energy from the ionic discrepancy between fresh and salt water. Logan’s bacterial hydrolysis cell (pictured left) features a so-called RED stack that’s comprised of alternating positive and negative ion exchange membranes, which it uses to split water molecules into hydrogen and oxygen. Normally, this process would involve about 25 pairs of membranes, but by using RED technology in conjunction with electricity-producing exoelectrogenic bacteria, Penn State’s team was able to extract hydrogen with just five membrane pairs. All told, Logan’s cells proved to be about 58 to 64 percent energy efficient, while producing between 0.8 to 1.6 cubic meters of hydrogen for every cubic meter of liquid that passed through the system. The researchers’ results show that only one percent of that energy was used to pump water through the cells, which are completely carbon neutral, as well. According to Logan, this breakthrough demonstrates that “pure hydrogen gas can efficiently be produced from virtually limitless supplies of seawater and river water and biodegradable organic matter.” Somewhere, the US Navy is taking scrupulous notes . Full PR after the break. [Image courtesy of Penn State / Bruce Logan] Continue reading Microbial fuel cell produces hydrogen from wastewater without wasting energy Microbial fuel cell produces hydrogen from wastewater without wasting energy originally appeared on Engadget on Thu, 22 Sep 2011 07:01:00 EDT. Please see our terms for use of feeds . Permalink

Continue reading …

Death Penalty

No Comment
Death Penalty

Christianity and the death penalty… (Troy Davis) end the f*cking death penalty! Georgia executes Troy Davis. dweidnerrr says: RT @ OfficialSwavey : When a white person gets death penalty , no big deal. Black person gets death penalty , it’s racist. Am I missing something?

Continue reading …

Law And Order Svu

No Comment
Law And Order Svu

Law & Order SVU 13

Continue reading …
Troy Davis Executed in Georgia for Killing Off-Duty Cop

After one final, desperate plea for clemency, Troy Anthony Davis was executed after the U.S. Supreme Court denied his request to cancel his execution. In the dramatic pinnacle of an intense and controversial case, Davis filed an eleventh-hour plea on Wednesday evening about an hour before his scheduled execution time of 7 pm, causing a

Continue reading …
Pope in Berlin for first state visit to native Germany

German MPs threaten to boycott Benedict XVI’s speech in parliament at start of four-day visit The pope has arrived in Berlin for his first state visit to his native Germany amid the now customary protests against his leadership of the Catholic church. Benedict XVI – born Joseph Ratzinger in Marktl, Bavaria, 84 years ago – was given the red carpet treatment at Berlin’s Tegel airport, where he was met by German chancellor Angela Merkel and president Christian Wulff at the start of his four-day visit. He will give a speech in parliament later, which around 100 MPs have vowed to boycott over what they consider a violation of Germany’s separation of church and state. Another 10,000 protesters are expected to demonstrate outside. The pope plans meetings with leaders of Germany’s Jewish and Muslim communities, three masses, an ecumenical service with Lutheran church members and possibly meetings with victims abused by priests. The Vatican’s views on contraception, the role of women, homosexuality and its handling of the sexual abuse scandal that rocked Germany last year are seen by many in Germany as outdated and out-of-touch. On the plane from Rome, the pope told reporters that he thought demonstrations were acceptable as long as they remained civil. They are “normal in a free society and in the secularised world,” he said. He said he believed there needs to be an examination of why people have been leaving the church recently, and the part that the abuse scandals played in the phenomenon. “I can understand that some people have been scandalised by the crimes that have been revealed in recent times,” he said. More than 250,000 people are registered to attend his masses, including about 70,000 who plan to be at the open-air service on Thursday night in Berlin’s Olympic Stadium. Bild, Germany’s biggest tabloid, has shown its support for the pope by hanging an enormous poster on the side of its high-rise headquarters in Berlin’s Kreuzberg district. “Wir sind Papst” is the slogan, meaning “We are pope”, the headline the newspaper chose for its front page the day after Joseph Ratzinger was chosen to succeed John Paul II in April 2005. The pontiff is expected to draw bigger crowds when he travels to Germany’s more Catholic south. Of the 3.4 million people who live in largely atheist Berlin, 660 000 are protestants, 210 000 are Muslim and just 90 000 are classed as “other Christians”. Pope Benedict XVI Germany Catholicism Religion Christianity Europe Helen Pidd guardian.co.uk

Continue reading …
Libya: NATO leaders extend allied troops’ mission

London — Leaders of NATO authorized a 90-day extension of the alliance’s aerial mission over Libya on Wednesday, raising the prospect that U.S. and allied troops could be involved in the North African nation until Christmas. But NATO Secretary-General Anders Fogh Rasmussen emphasized that the alliance could call home its…

Continue reading …
Logitech Wireless Keyboard K360 (Dark Silver) (920-003366)

Type: CE Title: Logitech Wireless Keyboard K360 (Dark Silver) (920-003366) See all customer reviews Product Description: The Logitech Wireless Keyboard K360 is beautifully convenient and conveniently compact thanks to its space-saving design, familiar layout, 3-year battery life, and Internet and media hot keys. Keyboard battery life calculation based on an estimated two million keystrokes/year in an office environment. User experience may vary. Features: Comfortably compact: Great for tight workspaces – the standard layout you’re used to in a space-saving size Hassle-free design: Upto 3 years of power without battery changes plus simple setup with plug-and-play wireless receiver 12 one-touch activity keys: Instantly access the things you do most like email, the Internet and your Facebook page Powerful 2.4 GHz wireless: Enjoy a reliable connection using a tiny Logitech Unifying receiver that can stay in your laptop Requires programming with Logitech’s SetPoint software, free for download 12 one-touch activity keys: Instantly access the things you do most like email, the Internet and your Facebook page (Requires programming with Logitech’s SetPoint software, free for download at www.logitech.com/downloads) Hassle-free design: Up to 3 years of power without battery changes plus simple setup with plug-and-play wireless receiver (Keyboard battery life may vary depends on usage) Keyboard battery life may vary depends on usage PC Compatible: Works with Windows-based laptop and desktop computers See the details

Continue reading …
Kirstie Alley Loses 100 Lbs

Emma_Newman2 says: Zooey Deschanel’s ‘New Girl’ opens big; Kirstie Alley loses 100 lbs … – The Express Times http://t.co/1p7zzXS7

Continue reading …
Gun Pulled Over Hot Sauce

BillMartin10 says: A man allegedly threatens workers at Taco Bell with shotgun. He wasn’t given hot sauce with drive-through meal. http://t.co/9m0pyGrY

Continue reading …
Back to the Future A Cappella

(YouTube link) Matt Mulholland replaced the soundtrack of the skateboard chase scene in the movie Back to the Future with his own voice. Yes, he does all the musical parts and the dialog, too! Previously: The Matrix Broadcasting platform : YouTube Source : Neatorama Discovery Date : 21/09/2011 15:00 Number of articles : 4

Continue reading …