A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Sunday, August 23, 2009
New Way To Reproduce A Black Hole?
From Science Daily:
ScienceDaily (Aug. 22, 2009) — Despite their popularity in the science fiction genre, there is much to be learned about black holes, the mysterious regions in space once thought to be absent of light. In a paper published in the August 20 issue of Physical Review Letters, Dartmouth researchers propose a new way of creating a reproduction black hole in the laboratory on a much-tinier scale than their celestial counterparts.
The new method to create a tiny quantum sized black hole would allow researchers to better understand what physicist Stephen Hawking proposed more than 35 years ago: black holes are not totally void of activity; they emit photons, which is now known as Hawking radiation.
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Gigantic Lightning Jets Shoot From Clouds To Space
A series of still images from a captured video sequence of a gigantic jet observed near Duke University. The thunderstorm that produced this jet was about 200 miles away and is below the visible horizon. Credit: Steven Cummer
From Live Science:
Strokes of lightning flashing down towards the ground are a familiar sight during summer thunderstorms, but scientists have capture an image of a rare lightning bolt shooting out upwards from a cloud, almost to the edge of the Earth's atmosphere.
These bolts of upwards lightning, one type among a variety of electrical discharges now known to occur above thunderstaorms, are called gigantic jets, and were only first discovered in 2001.
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Four Ways to Fight Back Against Cyber Attacks
From Popular Mechanics:
This week, prosecutors indicted notorious hacker Albert Gonzalez. He's accused of having masterminded a scheme to steal more than 130 million credit card numbers. Gonzalez may be behind bars, but his trial underscores the fact that your personal and financial information are vulnerable to attack from thieves in cyberspace. Here are four ways to fight back.
Read more ....
This week, prosecutors indicted notorious hacker Albert Gonzalez. He's accused of having masterminded a scheme to steal more than 130 million credit card numbers. Gonzalez may be behind bars, but his trial underscores the fact that your personal and financial information are vulnerable to attack from thieves in cyberspace. Here are four ways to fight back.
Read more ....
NASA May Outsource Amid Budget Woes
From Wall Street Journal:
For the first time since the advent of manned space exploration, the U.S. appears ready to outsource to private companies everything from transporting astronauts to ferrying cargo into orbit.
Proposals gaining momentum in Washington call for contractors to build and run competing systems under commercial contracts, according to federal officials, aerospace-industry officials and others familiar with the discussions.
Read more ....
For the first time since the advent of manned space exploration, the U.S. appears ready to outsource to private companies everything from transporting astronauts to ferrying cargo into orbit.
Proposals gaining momentum in Washington call for contractors to build and run competing systems under commercial contracts, according to federal officials, aerospace-industry officials and others familiar with the discussions.
Read more ....
Steve Jobs's New Trick: The Apple Tablet
From The Guardian:
Rumours are rife that Steve Jobs is about to unveil a revolutionary touchscreen gadget.
Feverish speculation all over the internet, gadget shoppers nearing mass hysteria and pundits predicting our lives will never be the same. It must mean that an Apple product launch is on the way.
The company that makes the Mac computer, iPod music player and iPhone is reportedly poised to launch a tablet computer – small enough to carry in a handbag or briefcase but big enough to comfortably surf the web, read newspapers and watch films. It could be Apple's latest billion-dollar jackpot.
Read more ....
Ten Days Left To Buy Traditional Lightbulbs: EU Ban Means Only Low-Energy Ones Will Be On Sale
Photo: Banned: Pearl, incandescent lightbulbs are being cleared from shelves in a bid to slash energy bills and carbon dioxide emissions
From The Daily Mail:
Traditional lightbulbs will disappear from our shops in just ten days.
All conventional pearl, incandescent lightbulbs are being banned by the European Union to slash energy bills and carbon dioxide emissions.
The move covers every type of frosted traditional bulb, from the 60 watt pearl bulbs used in table lamps to more specialised opaque 25 and 40 watt bulbs shaped like golf balls and candles.
Clear and frosted 100 watt lightbulbs will also not be on sale from September 1.
Read more ....
From The Daily Mail:
Traditional lightbulbs will disappear from our shops in just ten days.
All conventional pearl, incandescent lightbulbs are being banned by the European Union to slash energy bills and carbon dioxide emissions.
The move covers every type of frosted traditional bulb, from the 60 watt pearl bulbs used in table lamps to more specialised opaque 25 and 40 watt bulbs shaped like golf balls and candles.
Clear and frosted 100 watt lightbulbs will also not be on sale from September 1.
Read more ....
Expanding Waistlines May Cause Shrinking Brains
From New Scientist:
BRAIN regions key to cognition are smaller in older people who are obese compared with their leaner peers, making their brains look up to 16 years older than their true age. As brain shrinkage is linked to dementia, this adds weight to the suspicion that piling on the pounds may up a person's risk of the brain condition.
The brains of elderly obese people looked 16 years older than the brains of those who were lean
Read more ....
My Comment: Does this mean that "skinny" people are smarter?
Phones, PCs Put E-Book Within Reach Of Kindle-Less
Many phones are now sophisticated enough, and have good enough screens, that they can be used as e-book reading devices. They can now rival the Kindle, pictured. (Mark Lennihan/AP)
From Christian Science Monitor:
Amazon's pioneering device may not dominate the market for long. Many phones are now sophisticated enough to be used as e-book reading devices.
A few weeks ago, Pasquale Castaldo was waiting at the Dallas-Fort Worth airport for a delayed flight, when a man sitting across from him pulled out an Amazon Kindle book-reading device.
“Gee, maybe I should think about e-books myself,” Castaldo thought.
He didn’t have a Kindle, but he did have a BlackBerry. He pulled it out and looked for available applications. Sure enough, Barnes & Noble Inc. had just put up an e-reading program. Castaldo, 54, downloaded it, and within a minute, began reading Jane Austen’s “Pride and Prejudice.”
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Learning To Live Without The Net
From The BBC:
Bill Thompson feels the pain of the digitally dispossessed.
I have just endured a week of limited connectivity and it has given me a salutary lesson in what life is like for the digitally dispossessed here in the UK and around the world.
I have been driven to searching for open wireless access points so that I can download my e-mail, sometimes wandering the beach looking for elusive 3G signals just to get my Facebook status updated.
Read more ....
Saturday, August 22, 2009
How Do Scientists Really Use Computers?
From American Scientist:
Computers are now essential tools in every branch of science, but we know remarkably little about how—or how well—scientists use them. Do most scientists use off-the-shelf software or write their own? Do they really need state-of-the-art supercomputers to solve their problems, or can they do most of what they need to on desktop machines? And how much time do grad students really spend patching their supervisors’ crusty old Fortran programs?
Read more ....
Computers are now essential tools in every branch of science, but we know remarkably little about how—or how well—scientists use them. Do most scientists use off-the-shelf software or write their own? Do they really need state-of-the-art supercomputers to solve their problems, or can they do most of what they need to on desktop machines? And how much time do grad students really spend patching their supervisors’ crusty old Fortran programs?
Read more ....
First Avatar Trailer Reveals Pandora’s Intoxicating Alien World
From Underwire/Wired Science:
The new Avatar trailer gives the world its first glimpse of the alien world dreamed up by James Cameron for his coming sci-fi epic.
The fast-paced clip is short on dialogue and long on brief flashes of the dazzling flora and fauna that inhabit Pandora, the distant moon where the movie’s sweeping action unfolds.
Read more ....
Mysterious Origins: 8 Phenomena That Defy Explanation
Photo: A UNIVERSE OF MYSTERIES: Why aren't there suns, planets and galaxies made of antimatter? NASA
From Scientific American:
The unknown origins behind language, handedness, flu seasons, superconductivity, antimatter, proton spin, cosmic rays and sex.
Our September 2009 special issue on origins contains articles on 57 innovations and insights that shape our world today. They include some big ones, like the origin of life, the universe and the mind; sobering stories, like mad cow disease and HIV; and whimsical tales, like paper clips and cupcakes. This past week, we've posted a dozen additional online-only origins: the open-plan office space, fruit ripening, malaria, the computer mouse, atmospheric oxygen, hatred, wine, dogs, rubber boots, zero and, of course, Scientific American.
Read more ....
From Scientific American:
The unknown origins behind language, handedness, flu seasons, superconductivity, antimatter, proton spin, cosmic rays and sex.
Our September 2009 special issue on origins contains articles on 57 innovations and insights that shape our world today. They include some big ones, like the origin of life, the universe and the mind; sobering stories, like mad cow disease and HIV; and whimsical tales, like paper clips and cupcakes. This past week, we've posted a dozen additional online-only origins: the open-plan office space, fruit ripening, malaria, the computer mouse, atmospheric oxygen, hatred, wine, dogs, rubber boots, zero and, of course, Scientific American.
Read more ....
Engineers Develop Flexible, Inorganic LED Display
Flexible Inorganic LED Pacific Northwest National Lab via Ars Technica
From Popular Science:
The promise of OLED technology is that, unlike its inorganic counterpart, it can be used to create flexible and nearly transparent ultra-thin screens, opening up myriad possibilities for what we can do with displays and lighting. But just as market-ready OLED technology suffered a setback as Sony delayed its latest OLED television this week (only the world’s second commercial OLED TV, after Sony's XEL-1 set), engineers have devised a way to make cheaper, more efficient inorganic LED technology bend to their whims. Literally.
Read more ....
The Crew Of STS-128
STS128-S-002 (30 Jan. 2009) --- Attired in training versions of their shuttle launch and entry suits, these seven astronauts take a break from training to pose for the STS-128 crew portrait. Seated are NASA astronauts Rick Sturckow (right), commander; and Kevin Ford, pilot. From the left (standing) are astronauts Jose Hernandez, John "Danny" Olivas, Nicole Stott, European Space Agency's Christer Fuglesang and Patrick Forrester, all mission specialists. Stott is scheduled to join Expedition 20 as flight engineer after launching to the International Space Station on STS-128.
From Yahoo News/Space:
A former off-road racer, a Swedish physicist and three tweeting astronauts form just part of the eclectic crew poised to blast off Tuesday aboard NASA's space shuttle Discovery.
Discovery's six-man, one-woman crew is slated to launch on a 13-day mission to the International Space Station, where they astronauts will deliver vital supplies and experiments, as well as a new crewmember for the orbiting laboratory.
"This is a great crew," said Discovery commander Rick Sturckow in a NASA interview. "I think from the very beginning we got off to a good start and we've maintained a good pace throughout the training ... and still manage to have fun together doing it, so I've really enjoyed training with this crew."
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Space Shuttle Discovery On Track For Tuesday Launch
Space shuttle Discovery back on Earth (AFP: Pierre Ducharme)
From Yahoo News/Space:
NASA's space shuttle Discovery is on track for a planned Tuesday launch toward the International Space Station, mission managers said Saturday.
The shuttle and its seven-astronaut crew are nearly ready for their predawn launch Tuesday at 1:36 a.m. EDT (0536 GMT) from NASA's Kennedy Space Center in Florida, said NASA test director Charlie Blackwell-Thompson.
"All of our vehicle systems are in good shape. Our countdown work is progressing well," Blackwell-Thompson said today in a morning status briefing. "Discovery and her launch team are ready to go."
Read more ....
Universal Vaccine Could Put An End To All Flu
From New Scientist:
IT IS not a nice way to die. As the virus spreads through your lungs, your immune system goes into overdrive. Your lungs become leaky and fill with fluid. Your lips and nails, then your skin, turn blue as you struggle to get enough oxygen. Basically, you drown.
Flu can kill in other ways, too, from rendering you vulnerable to bacterial infections to triggering heart attacks. Of course, most flu strains, including (so far) the 2009 pandemic virus, cause only mild symptoms in the vast majority of people. But with 10 to 20 per cent of people worldwide getting flu every year, that still adds up to a huge burden of illness - and even in a good year some half a million die.
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Evolution Of The Human Appendix: A Biological 'Remnant' No More
Normal location of the appendix relative to other organs of the digestive system (frontal view). (Credit: Wikimedia Commons)
From Science Daily:
Science Daily (Aug. 21, 2009) — The lowly appendix, long-regarded as a useless evolutionary artifact, won newfound respect two years ago when researchers at Duke University Medical Center proposed that it actually serves a critical function. The appendix, they said, is a safe haven where good bacteria could hang out until they were needed to repopulate the gut after a nasty case of diarrhea, for example.
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What You Should Know About Arthritis
From Live Science:
This Week's Question: I'm pretty sure I have arthritis in my knee. Is there any danger this will spread?
First, anyone who thinks they may have arthritis should see a doctor. Self-diagnosis is hazardous to your health. Now for some information about arthritis all geezers should know.
Arthritis, which comes in different forms, is inflammation of the joints. Osteoarthritis, rheumatoid arthritis and gout are the three most common forms of arthritis among seniors. Osteoarthritis is the most prevalent. None is contagious.
Read more ....
You Are What You Listen To, Says New Study Of Music Lovers
From The Telegraph:
Think twice before proudly showing off your iPod playlist. Your choice of music may mark you out as boring, dim and unattractive, according to new research from the University of Cambridge.
The study found that we make assumptions about someone’s personality, values, social class and ethnicity based on their musical preferences.
Classical buffs are seen as ugly and boring, while rock lovers are regarded as emotionally unstable and pop fans are considered to be rather dim.
Read more ....
Let Private Sector Help NASA
From Autopia/Wired News:
After leading the way in the human exploration of space for nearly 50 years, the future of U.S. manned space flight is in question. The space shuttle makes its last flight next year. After that, NASA must rely on the Russians to put astronauts in space.
Unless the country looks to the private sector.
Read more ....
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