A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Wednesday, September 30, 2009
America's 'Most Dangerous Fault'
It's a big white building on Mission Boulevard. You can't miss it; the Art Deco style is really striking. The grass is trimmed and it all looks perfectly inviting, except this is a lock-out.
The first Hayward City Hall in California has long been off-limits to occupants because its foundations sit right atop an earthquake fault and it's gradually splitting in two.
"Look up at the stairwell," says geologist Russ Graymer, as we peer through a window.
"There are huge cracks, several centimetres broad and many metres long - basically showing the evidence that this building is being torn in half."
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Being Stephen Hawking
From Discovery:
Sir John Maddox, twice the editor of the journal Nature, was one of the most thoughtful voices in science journalism of the past five decades. He died on April 12 of this year, but his spirit lives on in this unique appreciation of Stephen Hawking, appearing in publication for the first time. Also see the related look at Hawking's recent work, "Stephen Hawking Is Making His Comeback."
On November 30 of 2006, in the august premises of the Royal Society of London, I had dinner with professor Stephen Hawking. To boast of having had dinner with Hawking creates a false impression. The circumstances were these. Since the summer I had been badgering the “graduate assistant to Professor Hawking” for an interview. Early in November, word came that Hawking was to receive the Copley Medal, the most venerable of the Royal Society’s gifts. I was invited; the date was plainly a license to join the scrum around the wheelchair after the group photographs had been taken.
Why The Mafia Study Gangster Movies
From The Guardian:
Life imitates art as mob members avidly watch The Godfather to find out how to do their jobs.
Bada-bing. For some people, The Godfather is no mere movie but a manual – a guide to living the gangster's life. They lap up all that stuff about going to the mattresses and sleeping with the fishes. The famous scene in which a mafia refusenik wakes up next to a horse's head may be macabre make-believe, but in some quarters it's treated like a tutorial.
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Dementia Risk Seen in Players in N.F.L. Study
From New York Times:
A study commissioned by the National Football League reports that Alzheimer’s disease or similar memory-related diseases appear to have been diagnosed in the league’s former players vastly more often than in the national population — including a rate of 19 times the normal rate for men ages 30 through 49.
The N.F.L. has long denied the existence of reliable data about cognitive decline among its players. These numbers would become the league’s first public affirmation of any connection, though the league pointed to limitations of this study.
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The Next Generation Of Stealth
Blinding us with science: the next generation of stealth.
Look down a long stretch of highway on a summer afternoon and in the distance a pool of water seems to wait for you, glistening under the hot sun. It’s only an illusion—Mother Nature’s version of a practical joke. The difference in density between the asphalt-heated air near the surface and the cooler air above acts like a lens, bending light waves as they pass from one layer to the next to reflect the blue sky and hide both the blacktop and any vehicles at the far end of the road behind a shimmering curtain.
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My Comment: The technical geek inside of me loves stories like this one .... makes you wonder what the ultimate limits to stealth are.
Clown Blastes Into Space
BAIKONUR, Kazakhstan — The billionaire founder of Cirque du Soleil Wednesday blasted off on a Russian rocket to bring his trademark humour and acrobatic energy into the ultra-serious world of space flight.
Guy Laliberté, 50, a Canadian citizen, had spent millions from a personal fortune on his two week visit to the International Space Station (ISS) but he could be the last such "space tourist" for several years.
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Cirque de Soleil owner Guy Laliberte becomes first clown in space -- Times Online
Canadian circus billionaire heads to space station -- AP
Clown takes giant leap into space -- AFP
A Billionaire Clowns Around In Space -- Forbes
Cirque de Soleil boss in space -- The Sun
Canadian circus tycoon is 7th pay-for-play space traveler -- USA Today
'Clown' space tourist blasts off -- BBC
Circus tycoon Guy Laliberté becomes first clown in space -- The Guardian
Samoan Tsunami Caused By 'Shallow Quake'
A map showing the effects of an 8.3-magnitude earthquake and its resultant tsunami
on Samoa and American Samoa.(Source: Google)
From ABC News (Australia):
Scientists say the tsunami that devastated the islands of Samoa, American Samoa and Tonga was the result of a shallow rupture in the earth's crust.
The earthquake, which was measured as high as 8.3 on the Richter scale, occurred 190 kilometres southwest of American Samoa.
Gary Gibson, a senior seismologist at Environmental Systems and Services in Melbourne, says the region experiences several magnitude 7 earthquakes each year, but a magnitude 8 is quite rare.
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Air Pollutants From Abroad A Growing Concern, Says New Report
From Science Daily:
ScienceDaily (Sep. 30, 2009) — Plumes of harmful air pollutants can be transported across oceans and continents -- from Asia to the United States and from the United States to Europe -- and have a negative impact on air quality far from their original sources, says a new report by the National Research Council. Although degraded air quality is nearly always dominated by local emissions, the influence of non-domestic pollution sources may grow as emissions from developing countries increase and become relatively more important as a result of tightening environmental protection standards in industrialized countries.
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Clock Turned Back On Aging Muscles, Researchers Claim
From Live Science:
Scientists have found and manipulated body chemistry linked to the aging of muscles and were able to turn back the clock on old human muscle, restoring its ability to repair and rebuild itself, they said today.
The study involved a small number of participants, however. And the news is not all rosy.
Importantly, the research also found evidence that aging muscles need to be kept in shape, because long periods of atrophy are more challenging to overcome. Older muscles do not respond as well to sudden bouts of exercise, the scientists discovered, and rather than building muscle a person can generate scar tissue upon, say, lifting weights after long periods of inactivity.
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Environmentalists Battle Over Toilet Paper
From CBS News:
Washington Post: Groups Say Soft Toilet Paper May be Hard on the Earth, But Consumers May Not Buy the Alternative.
There is a battle for America's behinds.
It is a fight over toilet paper: the kind that is blanket-fluffy and getting fluffier so fast that manufacturers are running out of synonyms for "soft" (Quilted Northern Ultra Plush is the first big brand to go three-ply and three-adjective).
It's a menace, environmental groups say -- and a dark-comedy example of American excess.
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Everything We Know About Apple’s Touchscreen Tablet
From Gadget Lab:
It’s looking more and more likely that Apple will release a 10-inch tablet computer in early 2010.
Even if you’re sick of Apple tablet rumors, we promise you’ll like this one. The latest update comes from a tipster with a solid track record, which reinforces previous reports that Apple will deliver a tablet in early 2010. The tipster also shares details on the rumored product’s specifications.
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SETI At 50: 10 Key Moments In The Search For Extraterrestrial Life
Photo: NASA
From The Telegraph:
The Search for Extraterrestrial Intelligence, or SETI, is 50 years old this month. We look at 10 memorable events in the search for life on other planets.
SETI was founded in response to a September 1959 Nature journal article, “Searching for Interstellar Communication”, which suggested that a systematic search for alien life was worthwhile.
Since then, it has spent 50 years listening to the stars with radio telescopes, and at times trying to send messages of its own to other planets.
Here are 10 of the most significant events in mankind’s search for other life.
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The Speech Safire Wrote For Nixon If Apollo 11 Astronauts Were Stranded On The Moon.
From Boing Boing:
Columnist and conservative speechwriter William Safire died yesterday at age 79. Here is the speech he drafted for President Nixon to read in the event that Apollo 11 astronauts Buzz Aldrin and Neil Armstrong found themselves stranded to die on the moon. I am happy to note that Messrs. Aldrin and Armstrong are all still alive (as is Michael Collins, who orbited the moon while his colleagues walked on her surface). William Safire's Finest Speech. (Gawker, via Scott Beale)
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Huge 507-Carat Diamond Found In South African Mine
From New York Daily News:
JOHANNESBURG - Petra Diamonds Ltd. says a diamond the size of a chicken egg has been found at South Africa's Cullinan mine.
The diamond may be among the world's top 20 high-quality gems.
It was discovered Thursday at the mine northeast of Pretoria, South Africa.
Johan Dippenaar, the company's chief executive said in a statement Tuesday that the 507.55-carat gem was of "exceptional color and clarity."
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Number Of Earth's Species Known To Scientists Rises To 1.9 Million
From The Guardian:
The world's most comprehensive catalogue of plants and animals has been boosted by 114,000 new species in the past three years.
The number of species on the planet that have been documented by scientists has risen to 1.9 million, according to the world's most comprehensive catalogue of plants and animals.
The new figure has been boosted by 114,000 new species discovered since the catalogue was last compiled by Australian researchers three years ago – a 6.3% increase.
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Moon Could Become The World's 'Service Station' Thanks To Abundance Of Oxygen And Hydrogen
From The Daily Mail:
The discovery of water on the moon could pave the way for us to build a rocket refueling station up there.
For man to be able to make sustainable, affordable voyages in the solar system, we need a way to re-fuel off the planet.
Now, with the discovery of hydrogen and oxygen molecules - the components of water - on our neighbouring body, we may now have a staging post to explore the other planets.
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Can Wind Power Be Stored?
From Scientific American:
Wind farms typically generate most of their energy at night, so how do you bottle that power to meet demand that is highest during the day?
Wind farms typically generate most of their energy at night, when most electricity demand is lowest. So a lot of that "green" energy is wasted.
So the big question is: How do you bottle that power for air conditioners and other appliances that are busiest during the day?
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Tuesday, September 29, 2009
High-heels Linked To Heel And Ankle Pain
From Science Daily:
ScienceDaily (Sep. 29, 2009) — Women should think twice before buying their next pair of high-heels or pumps, according to researchers at the Institute for Aging Research of Hebrew SeniorLife in a new study of older adults and foot problems.
The researchers found that the types of shoes women wear, specifically high-heels, pumps and sandals, may cause future hind-foot (heel and ankle) pain. Nearly 64 percent of women who reported hind-foot pain regularly wore these types of shoes at some point in their life.
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Parents Lie to Children Surprisingly Often
From Live Science:
Parents might say "honesty is the best policy," but when it comes to interacting with their own kids, mom and dad stretch the truth with the best of them, finds a new study.
From claiming the existence of magical creatures to odd consequences of kids' actions, parents often come up with creative tales to shape a child's behaviors and emotions.
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Transonic Hulls, Inspired by Racing Yachts, Could Add Stealth To Navy SEALs' Boats
From Popular Science:
A knife-like boat design provides a covert, fuel-efficient ride.
An undercover team of Navy SEALs isn’t worth much if their transport boat’s wake betrays their approach. Nor does it help if they come ashore with back pain and possible organ damage from the boat’s constant bouncing. A sleek new hull design could help troops slip through waves undetected and unscathed, while also setting a new standard for efficient nautical design.
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Instant Expert: Weapons Technology
From New Scientist:
Violence and conflict have been a feature of human life throughout history. Starting with simple weapons, people have developed ever more advanced methods to kill one another. Technology has dominated warfare since the early 1900s, and an astounding 190 million people may have been killed during the 25 biggest conflicts of the 20th century.
Today guided weapons, like "smart" bombs dropped by stealth bombers, coupled with space-based sensors and precision satellite navigation, provide decisive advantages in conventional warfare. In this high-spending game, less capable opponents are soon reduced to guerrilla tactics, and human cost of war remains high.
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My Comment: This article was written a few years ago, but it is still appropriate for today.
NASA's Messenger Is Approaching Mercury
From Discovery Channel:
Sept. 28, 2009 -- Tomorrow, NASA's MESSENGER (MErcury Surface, Space ENvironment, GEochemistry and Ranging) spacecraft will make its third and final flyby of the Solar System's innermost planet, Mercury. After coming within 142 miles to the small planet's rocky surface, the robotic probe will be flung back into interplanetary space before arriving in Mercury orbit in 2011 for a year-long mission to study the planet in unprecedented detail.
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Secret Service Investigating Facebook Poll On Obama
(CNN) -- The social networking site Facebook on Monday pulled a third-party application that allows users to create polls after a site member built a poll asking if President Obama should be killed.
The U.S. Secret Service, the agency assigned to protect the president, has launched an investigation, agency spokesman James Mackin said.
"As is usually the case, our vigilant users reported it to us first," Facebook spokesman Barry Schnitt told CNN. "The USSS [Secret Service] sent us an e-mail late this morning PDT asking us to take it down. At that point, it had already been removed, and we let them know."
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Champagne Bubbles' Flavour Fizz
It is champagne's bubbles which give the drink flavour and fizz, and glasses that promote bubbles will improve the drinking experience, scientists say.
Research shows there are up to 30 times more flavour-enhancing chemicals in the bubbles than in the rest of the drink.
Wine experts say the finding changes completely our understanding of the role of bubbles in sparkling drinks.
The study is reported in the journal Proceedings of the National Academy of Sciences (PNAS).
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The Tiny Kingbird That Took A Piggyback On A Predatory Hawk And Lived To Tell The Tale
From The Daily Mail:
How far would you go to get rid of an unwelcome visitor?
This is the moment a tiny kingbird decided it was time to see off a potential predator circling his home.
In a bold move, the aggressive little bird launched itself at the fearsome red-tailed hawk and sank its talons into the larger bird's back.
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A Life Of Its Own: Where Will Synthetic Biology Lead Us?
From The New Yorker:
The first time Jay Keasling remembers hearing the word “artemisinin,” about a decade ago, he had no idea what it meant. “Not a clue,” Keasling, a professor of biochemical engineering at the University of California at Berkeley, recalled. Although artemisinin has become the world’s most important malaria medicine, Keasling wasn’t an expert on infectious diseases. But he happened to be in the process of creating a new discipline, synthetic biology, which—by combining elements of engineering, chemistry, computer science, and molecular biology—seeks to assemble the biological tools necessary to redesign the living world.
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I Switched From Firefox To Internet Explorer─And Lived To Tell!
I am a loyal Firefox user. I love the tabs, the extensions, the customization. It’s fast and free and, because it’s an open-source project organized by a nonprofit in Silicon Valley, it gives me a warm, fuzzy, volunteering-at-the-soup-kitchen kind of feeling. I love watching its market share grow, from 15 percent in 2007 to 23 percent today. Each uptick in the chart is like a poke in the red, gleaming, robotic eye of our technological overlord, Microsoft, and its crusty workhorse, Internet Explorer.
But recently I was issued a challenge by this blog: forsake Firefox for a week and entrust my digital life to Internet Explorer 8. I expected a cataclysm of Katrina-like proportions. Frozen screens. Garbled Web pages. Cascading popup boxes. Molasses-like speed. With great trepidation I accepted, and tremblingly clicked online.
But you know what? It was ... fine.
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GE's Risky Energy Research
From Technology Review:
Michael Idelchik, VP of Advanced Technologies, discusses energy research.
Michael Idelchik is vice president of advanced technologies at GE Research, one of the world's largest corporate research organizations. He oversees a wide range of projects, including ones aimed at improving conventional energy sources--with better coal and gas turbines, for example--as well as projects involving renewable energy, primarily wind turbines. At the EmTech@MIT 2009 conference, Technology Review spoke to Idelchik about some of GE's most daring long-term research efforts.
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New Nanostructure Technology Provides Advances In Eyeglass, Solar Energy Performance
From Science Daily:
ScienceDaily (Sep. 29, 2009) — Chemical engineers at Oregon State University have invented a new technology to deposit "nanostructure films" on various surfaces, which may first find use as coatings for eyeglasses that cost less and work better.
Ultimately, the technique may provide a way to make solar cells more efficiently produce energy.
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Mighty T. rex Killed by Lowly Parasite, Study Suggests
From Live Science:
The famous dinosaur known as Sue — the largest, most complete and best preserved T. rex specimen ever found — might have been killed by a disease that afflicts birds even today, scientists now suggest.
The remains of Sue, a star attraction of the Field Museum in Chicago, possess holes in her jaw that some believed were battle scars, the result of bloody combat with another dinosaur, possibly another T. rex.
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Does Falling in Love Make Us More Creative?
From Scientific American:
A new study demonstrates that thinking about love--but not about sex--causes us to think more "globally," making it easier to come up with new ideas.
Love has inspired countless works of art, from immortal plays such as Romeo and Juliet, to architectural masterpieces such as the Taj Mahal, to classic pop songs, like Queen's “Love of My Life”. This raises the obvious question: why is love such a stimulating emotion? Why does the act of falling in love – or at least thinking about love – lead to such a spur of creative productivity?
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Slime-Dispensing Hulls Could Boost Fuel Efficiency For Ships
From Popular Science:
A DOD-backed project would give ships a regenerating slime layer to help shed unwanted marine life.
Slime ships ahoy! A vessel that oozes a continual slick layer of slime from its hull could shed barnacles and other marine life forms, and possibly cut its fuel consumption by up to 20 percent.
Such a novel idea tackles the problem of removing marine plants, barnacles and tube worms from ship hulls every year, lest the buildup cut into both speed and fuel efficiency. The fuel savings in particular may look especially tempting for the U.S. Department of Defense, which has backed the project and previously invested in hull-cleaning bots.Read more ....
Gamers Are More Aggressive To Strangers
From New Scientist:
Victorious gamers enjoy a surge of testosterone – but only if their vanquished foe is a stranger. When male gamers beat friends in a shoot-em-up video game, levels of the potent sex hormone plummeted.
This suggests that multiplayer video games tap into the same mechanisms as warfare, where testosterone's effect on aggression is advantageous.
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Are Recessions Good For Our Health?
From Discovery News:
Sept. 28, 2009 -- The name seems to say it all. The Great Depression was bad all around, wasn't it? Maybe not.
New findings show that the Great Depression was actually good for U.S. health. Annual death rates declined during years of downturn and increased in years of expansion.
The findings could offer a silver lining to today's financial crisis.
The results reinforce earlier research showing recessions reduce mortality, but researchers didn't know whether the effect would hold through a full blown economic meltdown like the Great Depression.
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Popular Kids Grow Into Healthier Adults
From Cosmos:
PARIS: Children who are the most popular and powerful at school also enjoy better health in adult life compared to counterparts at the bottom end of the pecking order, say Swedish scientists.
The long-term study covers 14,000 children born in 1953, who were questioned in 1966 when they were 12 or 13 years old and whose health was tracked up to 2003.
The children's place in the social hierarchy was determined by asking them who they most preferred to work with at school.
To assess their health in later life, the study delved into a national databank for hospital admissions.
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Giant Fish 'Verges On Extinction'
From The BBC:
One of the world's largest freshwater fish is on the verge of going extinct.
A three-year quest to find the giant Chinese paddlefish in the Yangtze river failed to sight or catch a single individual.
That means that the fish, which can grow up to 7m long, has not been seen alive for at least six years.
There remains a chance that some escaped the survey and survive, say experts, but without action, the future of the species is bleak.
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Time Lens Speeds Optical Data
From Technology Review:
An energy-efficient silicon device compresses light to make ultrafast signals.
Researchers at Cornell University have developed a simple silicon device for speeding up optical data. The device incorporates a silicon chip called a "time lens," lengths of optical fiber, and a laser. It splits up a data stream encoded at 10 gigabits per second, puts it back together, and outputs the same data at 270 gigabits per second. Speeding up optical data transmission usually requires a lot of energy and bulky, expensive optics. The new system is energy efficient and is integrated on a compact silicon chip. It could be used to move vast quantities of data at fast speeds over the Internet or on optical chips inside computers.
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By 2040 You Will Be Able To Upload Your Brain...
From The Independent:
...or at least that's what Ray Kurzweil thinks. He has spent his life inventing machines that help people, from the blind to dyslexics. Now, he believes we're on the brink of a new age – the 'singularity' – when mind-boggling technology will allow us to email each other toast, run as fast as Usain Bolt (for 15 minutes) – and even live forever. Is there sense to his science – or is the man who reasons that one day he'll bring his dad back from the grave just a mad professor peddling a nightmare vision of the future?
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Monday, September 28, 2009
Global Increase In Atmospheric Methane Likely Caused By Unusual Arctic Warmth, Tropical Wetness
From Science Daily:
ScienceDaily (Sep. 28, 2009) — Unusually high temperatures in the Arctic and heavy rains in the tropics likely drove a global increase in atmospheric methane in 2007 and 2008 after a decade of near-zero growth, according to a new study. Methane is the second most abundant greenhouse gas after carbon dioxide, albeit a distant second.
NOAA scientists and their colleagues analyzed measurements from 1983 to 2008 from air samples collected weekly at 46 surface locations around the world. Their findings will appear in the September 28 print edition of the American Geophysical Union’s Geophysical Research Letters and are available online now.
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Plumbing Of A Supervolcano Revealed
From Live Science:
The fossilized remains of a supervolcano that erupted some 280 million years ago in the Italian Alps are giving geologists a first-time glimpse at the deep "plumbing system" that brings molten rock from far underground to the Earth's surface.
James E. Quick of Southern Methodist University in Texas and his team discovered the "fossil," or extinct, supervolcano in the Alps' Sesia Valley two years ago, but they are just now reporting the results after careful study.
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Obama Appoints Scholar As New Copyright Czar
The “copyleft” and the “copyright” are both applauding the presidential appointment Friday of Victoria A. Espinel to become the nation’s first copyright czar.
Congress created the new czar position last year as part of intellectual property reform legislation.
Espinel, who requires Senate confirmation, has a past in teaching and government. Most recently, she was a visiting scholar at the George Mason University School of Law, where she taught intellectual property and international trade. The White House said she was an intellectual property adviser to the staff of the Senate Judiciary Committee, Senate Finance Committee, House Judiciary Committee and House Ways and Means Committee. Espinel, in 2005, served as the nation’s top trade negotiator for intellectual property at the Office of the U.S. Trade Representative.
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Googlle: Google Releases Misspelt Logo To Mark 11th Anniversary
From The Telegraph:
Google has released a special misspelt version of its logo – apparently to mark 11 years since the company was founded.
The search giant's name appeared with an extra letter "l" on its home page on Sunday, a change that did not escape the notice of the internet.
Within hours of the new logo going live, "why is google spelt wrong" and "why does google have two ls" were two of the most popular search phrases on the web.
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Yahoo's New Web Portal Goes Live
Internet giant Yahoo has relaunched its web portal, supported by a $100m global advertising campaign.
The company hopes the website refresh will boost both traffic and revenues.
Yahoo will also open its home page to rivals, allowing users to integrate third-party web services like Facebook or Hotmail into its portal.
Yahoo has been struggling to turn its position as the world's most popular website into profits. The portal is the first move of new boss Carol Bartz.
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Supertyphoons To Strike Japan DueTo Global Warming
From National Geographic:
Increasingly powerful "supertyphoons" will strike Japan if global warming continues to affect weather patterns in the western Pacific Ocean, scientists say.
Supercomputer simulations show there will be more typhoons with winds of 179 miles (288 kilometers) per hour—considered an F3 on the five-level Fujita Scale—by 2074.
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Chemicals In Breast Milk Linked To Testicular Cancer
From The Telegraph:
Pollutant chemicals found in mothers' breast milk have been linked to an increased rate of testicular cancer.
A study in Denmark suggests hormone-disrupting environmental chemicals may explain why so many men in the country develop the disease.
Danish men are up to four times more likely to have testicular cancer as men in neighbouring Finland.
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A Simpler, Gentler Robotic Grip
From Technology Review:
A new artificial hand shows promise for home robots and prosthetics.
Industrial robots have been helping in the factories for a while, but most robots need a complex hand and powerful software to grasp ordinary objects without damaging them.
Researchers from Harvard and Yale Universities have developed a simple, soft robotic hand that can grab a range of objects delicately, and which automatically adjusts its fingers to get a good grip. The new hand could also potentially be useful as a prosthetic arm.
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Hot Space Shuttle Images
From Technology Review:
NASA researchers capture thermal images of the shuttle's reentry to design better heat shields.
Researchers at NASA are using a novel thermal-imaging system on board a Navy aircraft to capture images of heat patterns that light up the surface of the space shuttle as it returns through the Earth's atmosphere. The researchers have thus far imaged three shuttle missions and are processing the data to create 3-D surface-temperature maps. The data will enable engineers to design systems to protect future spacecraft from the searing heat--up to 5,500 degrees Celsius--seen during reentry.
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Seti: The Hunt For ET
From The Independent:
Scientists have been searching for aliens for 50 years, scanning the skies with an ever-more sophisticated array of radio telescopes and computers. Known as Seti, the search marks its half-century this month. Jennifer Armstrong and Andrew Johnson examine its close – and not so close – encounters.
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Alzheimer's Linked To Lack Of Zzzzs
From Science News:
Losing sleep could lead to losing brain cells, a new study suggests.
Levels of a protein that forms the hallmark plaques of Alzheimer’s disease increase in the brains of mice and in the spinal fluid of people during wakefulness and fall during sleep, researchers report online September 24 in Science. Mice that didn’t get enough sleep for three weeks also had more plaques in their brains than well-rested mice, the team found.
Scientists already knew that having Alzheimer’s disease was associated with poor sleep, but they had thought that Alzheimer’s disease caused the sleep disruption.
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Discovery Brings New Type Of Fast Computers Closer To Reality
From Science Daily:
ScienceDaily (Sep. 28, 2009) — Physicists at UC San Diego have successfully created speedy integrated circuits with particles called “excitons” that operate at commercially cold temperatures, bringing the possibility of a new type of extremely fast computer based on excitons closer to reality.
Their discovery, detailed this week in the advance online issue of the journal Nature Photonics, follows the team’s demonstration last summer of an integrated circuit—an assembly of transistors that is the building block for all electronic devices—capable of working at 1.5 degrees Kelvin above absolute zero. That temperature, equivalent to minus 457 degrees Fahrenheit, is not only less than the average temperature of deep space, but achievable only in special research laboratories.
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Evidence For Stone Age Multitasking
From Live Science:
Modern parents, teenagers, and executives are all masters of multitasking, but people who lived 70,000 years ago may have shared that talent. Stone blades found in Sibudu Cave, near South Africa’s Indian Ocean coast, bear traces of compound adhesives that once joined them to wooden hafts to make spears or arrows.
Our distant ancestors discovered that mixtures of plant gum and red ocher or fat, heated carefully over a fire, made the superglue of their day, say Lyn Wadley and two colleagues at the University of the Witwatersrand in Johannesburg. So how is that evidence of multitasking?
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