Sunday, December 28, 2008

Scientific Illiteracy All The Rage Among The Glitterati

Kate Moss, who believes diet can detox your body. GETTY IMAGES

From The Independent:

When it comes to science, Barack Obama is no better than many of us. Today he joins the list of shame of those in public life who made scientifically unsupportable statements in 2008.

Closer to home, Nigella Lawson and Delia Smith faltered on the science of food, while Kate Moss, Oprah Winfrey and Demi Moore all get roastings for scientific illiteracy.

The Celebrities and Science Review 2008, prepared by the group Sense About Science, identifies some of the worst examples of scientific illiteracy among those who profess to know better – including top politicians.

Mr Obama and John McCain blundered into the MMR vaccine row during their presidential campaigns. "We've seen just a skyrocketing autism rate," said President-elect Obama. "Some people are suspicious that it's connected to the vaccines. This person included. The science right now is inconclusive, but we have to research it," he said.

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2008 Was The Year Man-Made Global Warming Was Disproved

Polar bears will be fine after all Photo: AP

From The Telegraph:

Looking back over my columns of the past 12 months, one of their major themes was neatly encapsulated by two recent items from The Daily Telegraph.

The first, on May 21, headed "Climate change threat to Alpine ski resorts" , reported that the entire Alpine "winter sports industry" could soon "grind to a halt for lack of snow". The second, on December 19, headed "The Alps have best snow conditions in a generation" , reported that this winter's Alpine snowfalls "look set to beat all records by New Year's Day".

Easily one of the most important stories of 2008 has been all the evidence suggesting that this may be looked back on as the year when there was a turning point in the great worldwide panic over man-made global warming. Just when politicians in Europe and America have been adopting the most costly and damaging measures politicians have ever proposed, to combat this supposed menace, the tide has turned in three significant respects.

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Dino Extinction May Have Been Caused By ‘Magnetic Chaos’

From Zeenews.com:

Washington, Dec 13: A new theory has suggested that the mass extinction event that killed the dinosaurs 250 million years ago, was caused by the Earth’s magnetic field going into complete disarray, exposing the planet to a shower of cosmic radiation.

According to a report in Discovery News, the theory has been put forward by Yukio Isozaki of the University of Tokyo.

The Permian-Triassic mass extinction event happened 250 million years ago, snuffing out 90 percent of life on the planet.

Now, the new theory by Isozaki suggests that the catastrophe was set in motion 15 million years earlier, deep in the Earth.

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Your Brain Sees $$$ More Clearly Than You Know

Photo: Visual areas of the brain that responded more to valuable objects in a study that shows our brain may recognize value better than our conscious mind. Credit: John Serences, UC San Diego

From Live Science:

When you see something of value, your brain essentially sees dollar signs, a new study finds.

The effect occurs even if you don't consciously realize the object's worth.

Researchers scanned the brains of subjects who were presented with choices of constantly changing red and green objects that represented 10 cents or nothing, with good choices in a game leading to potential winnings of $10.

Upon seeing objects that had been of value previously, brain activity lit up in several areas, including a part of the cortex known as V1, which is associated with representing basic features such as edge orientations and color.

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NASA Looks Forward Beyond 2008 Successes

Photo: TS-126 spacewalker Heide Stefanyshyn-Piper rides the International Space Station's Canadarm2 to space shuttle Endeavour's payload bay, 18 Nov 2008

From Voice Of America:

At NASA, 2008 will be remembered for shuttle missions, discoveries on Mars, and mysteries revealed across the solar system and beyond. While looking back at the U.S. space agency's 2008 successes, VOA looks at the agency's uncertain future and its plans to bring humankind to Moon.

NASA's Constellation project is accelerating, with engineers building and testing rockets and capsules that will be the primary vehicles for human space exploration after the shuttle fleet is retired in 2010.

The core of NASA's current activities is a return to the moon, with astronauts landing there by 2020.

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Regenerate Your Brain? -The Science Says It's Possible


From Daily Galaxy:

Contrary to popular belief, recent studies have found that there are probably ways to regenerate brain matter.

Animal studies conducted at the National Institute on Aging Gerontology Research Center and the Johns Hopkins University School of Medicine, for example, have shown that both calorie restriction and intermittent fasting along with vitamin and mineral intake, increase resistance to disease, extend lifespan, and stimulate production of neurons from stem cells.

In addition, fasting has been shown to enhance synaptic elasticity, possibly increasing the ability for successful re-wiring following brain injury. These benefits appear to result from a cellular stress response, similar in concept to the greater muscular regeneration that results from the stress of regular exercise.

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Saturday, December 27, 2008

The Shape Of Things To Come On The Internet

Internet Sites Could Be Given 'Cinema-Style Age Ratings', Culture Secretary Says -- The Telegraph

Internet sites could be given cinema-style age ratings as part of a Government crackdown on offensive and harmful online activity to be launched in the New Year, the Culture Secretary says.

In an interview with The Daily Telegraph, Andy Burnham says he believes that new standards of decency need to be applied to the web. He is planning to negotiate with Barack Obama’s incoming American administration to draw up new international rules for English language websites.

The Cabinet minister describes the internet as “quite a dangerous place” and says he wants internet-service providers (ISPs) to offer parents “child-safe” web services.

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Winter Cold Puts A Chill On Green Energy

In Minnesota, Alan Stankevitz did a new winter chore for homeowners: clearing the solar panels. Alan Stankevitz

From The New York Times:

Old Man Winter, it turns out, is no friend of renewable energy.

This time of year, wind turbine blades ice up, biodiesel congeals in tanks and solar panels produce less power because there is not as much sun. And perhaps most irritating to the people who own them, the panels become covered with snow, rendering them useless even in bright winter sunshine.

So in regions where homeowners have long rolled their eyes at shoveling driveways, add another cold-weather chore: cleaning off the solar panels. “At least I can get to them with a long pole and a squeegee,” said Alan Stankevitz, a homeowner in southeast Minnesota.

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Space Station Cargo Delivery Still Expensive

From Future Pundit:

Orbital Sciences Corp has won a $1.9 billion contract to carry 20 metric tons of cargo to the International Space Station in 8 flights. Think about those numbers. That's $95 million per metric ton to move cargo from ground level to low orbit. Those deliveries start in 2011 and run through 2015. A metric ton is 1000 kilograms or 2204.6 lbs. So the cost of putting stuff into low Earth orbit in 2015 is still going to be around $43k per lb or $95k per kg. At these prices large scale human colonization of space still seems a very distant prospect.

Those costs will come down a lot if a beanstalk into space built using nanotubes becomes possible. A bigger cost reduction for a Mars mission will come from nanotech advances. A bunch of nanodevices that can transform Mars landscape and produce needed supplies for a colony would reduce the size of the payload needed for setting up an initial colony.

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Google's Grand Ambitions

From CBS:

(CNET) Google stretched its wings in 2008, furthering an expansion beyond its core search and search-advertising business. But the economy and the government raised the possibility that those wings could be clipped.

The company began the year overcoming opposition to its $3.1 billion acquisition of DoubleClick, a move that gave Google more clout in the market for graphical "display" ads. But that antitrust fight was a harbinger of things to come.

In April, Google showed its ambitions to house not just its own online applications such as Google Docs, but also others' with a project called Google App Engine. Basic applications are free, but more taxing ones cost money, a pay-as-you-go model that's popular with the cloud-computing concept.

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Tiny Clues To Collision In Space

From BBC:

Evidence that a massive meteorite shower had an impact on Earth on a global scale 470 million years ago have been found on a Highlands beach.

Researchers from the University of Aberdeen uncovered tiny remnants of meteorites, smaller than a grain of sand, within rocks in Sutherland.

The find is linked to others made in China, the US and Australia.

The scientists think the meteorites - a result of a collision in space - triggered earthquakes and tsunami.

The university said the find near Durness confirmed previous scientific speculation that the meteorite shower - which followed a "catastrophic event" in an asteroid belt between Mars and Jupiter - was so vast in size that it affected locations across the globe.

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The World's Most High-Tech Nation

From ABC News:

If there ever is an "Easy Tech Adaptation for Dummies" book, I’d be the first one to grab it. Living in the most wired country in the world is quite a struggle for people with technology phobia like me. I’m not talking new gadgets or software that are released every few months or years. I’m talking almost every day learning how to use new functions on my mobile phone or keeping up to date with new ways to communicate.

Today, I joined the tech-savvy generation’s new thing: T-mobile money, only to find myself all frustrated because the whole concept is too good to be true and way too complex. It is a prepaid smart card that is embedded into your mobile’s SIM card, which works as a wallet, navigator or personalized weather forecaster. It even tells you how crowded -- not with car traffic but with human traffic -- certain places are so that you can avoid holiday shopping at those spots!

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Honey Bees On Cocaine Dance More, Changing Ideas About The Insect Brain

In a study that challenges current ideas about the insect brain, researchers have found that honey bees on cocaine tend to exaggerate. (Credit: iStockphoto/Florin Tirlea)

From Science Daily:

ScienceDaily (Dec. 25, 2008) — In a study that challenges current ideas about the insect brain, researchers have found that honey bees on cocaine tend to exaggerate.

Normally, foraging honey bees alert their comrades to potential food sources only when they've found high quality nectar or pollen, and only when the hive is in need. They do this by performing a dance, called a "round" or "waggle" dance, on a specialized "dance floor" in the hive. The dance gives specific instructions that help the other bees find the food.

Foraging honey bees on cocaine are more likely to dance, regardless of the quality of the food they've found or the status of the hive, the authors of the study report.

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Discovery Indicates Mars Was Habitable


From Live Science:

Evidence of a key mineral on Mars has been found at several locations on the planet's surface, suggesting that any microbial life that might have been there back when the planet was wetter could have lived comfortably.

The findings offer up intriguing new sites for future missions to probe, researchers said.

Observations NASA's Mars Reconnaissance Orbiter (MRO), which just completed its primary mission and started a second two-year shift, found evidence of carbonates, which don't survive in conditions hostile to life, indicating that not all of the planet's ancient watery environments were as harsh as previously thought.

The findings are detailed in a study in the Dec. 19 issue of the journal Science and will be presented today at the annual meeting of the American Geophysical Union in San Francisco

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Friday, December 26, 2008

Quantum Computer Could Solve Problems In A Few Months That Would Take Conventional Computers Millions Of Years


From Science Daily:

ScienceDaily (Sep. 13, 2001) — How to build a super fast computer that uses the bizarre properties of quantum physics is the aim of a project by computer scientists Fred Chong of the University of California, Davis, Isaac Chuang at MIT and John Kubiatowicz at UC Berkeley. The five-year project is supported by a grant of $3 million from the Defense Advanced Research Projects Agency. The grant will establish a Quantum Architecture Research Center between MIT, UC Davis and UC Berkeley.

A quantum computer could solve problems in a few months that would take conventional computers millions of years, Chong said.

Quantum physics describes the special rules that apply to atoms and subatomic particles. One principle is that when you observe a particle, you change it. If a particle can be in one of two states, for example "up" or "down," it only settles on one state when you look at it. Before you look at it, it can be in both states at the same time.

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The Biggest Scientific Breakthroughs Of 2008

From ABC News:

Progress This Year Wasn't Just in Hardware but in Understanding the Urgency of Key Issues.

The year 2008 closes with two enormous scientific and technological challenges unresolved: How to create renewable and benign sources of energy and how to lessen the damage we're doing to the global climate system.

Those twin issues are the "greatest challenge facing modern science," according to Nobel laureate Steven Chu, the gifted physicist who has been nominated to head the Department of Energy. He will be at the center of the effort to deal with these vexing problems, and his nomination signals a new day in that effort.

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Our Unconscious Brain Makes The Best Decisions Possible

From E! Science News:

Researchers at the University of Rochester have shown that the human brain—once thought to be a seriously flawed decision maker—is actually hard-wired to allow us to make the best decisions possible with the information we are given. The findings are published in today's issue of the journal Neuron. Neuroscientists Daniel Kahneman and Amos Tversky received a 2002 Nobel Prize for their 1979 research that argued humans rarely make rational decisions. Since then, this has become conventional wisdom among cognition researchers

Contrary to Kahnneman and Tversky's research, Alex Pouget, associate professor of brain and cognitive sciences at the University of Rochester, has shown that people do indeed make optimal decisions—but only when their unconscious brain makes the choice.

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Caffeine Works Better For Men

From Live Science:

Caffeine affects men more strongly than women, new research reportedly shows.

However, the same study found that while decaf coffee perks up both of the sexes, it affects women more.

The results come from a University of Barcelona study of caffeine's effects on 668 university students, with an average age of 22. Measurements were taken before and after the caffeine was ingested. Tests were carried out at between 11 am to 1 pm, as well as between 4pm to 6pm, to check for differences caused by the time of day.

"Although both the men and women saw an improvement in their activity levels with the coffee, which increased in later measurements, we observed a greater impact among the males," researcher Ana Adan told Spain’s Scientific Information and News Service (SINC).

"Numerous studies have demonstrated the stimulant effects of caffeine, but none of these have looked at their effects in terms of the consumer's gender," she added.

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Top 10 Places Already Affected by Climate Change

CLIMATE CHANGE: The effects of climate change are beginning to appear around the globe, including the conflict in Darfur. © Lynsey Addario/Corbis

From Scientific American:

Cities deep underwater, frozen continents, the collapse of global agriculture: so far, much of the discussion about climate change has focused on these distant, catastrophic effects of a superheated world. What's less talked about is how global warming is making itself felt already. Even the modest temperature rise we've already experienced has set in motion fundamental shifts—and the further warming we can expect in the next few decades has the potential to set off dramatic changes.

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New Type Of Laser Discovered

Quantum cascade lasers are small and efficient sources of mid-infrared laser beams, which are leading to new devices for medical diagnostics and environmental sensing. (Credit: Frank Wojciechowski)

From Science Daily:

ScienceDaily (Dec. 24, 2008) — A Princeton-led team of researchers has discovered an entirely new mechanism for making common electronic materials emit laser beams. The finding could lead to lasers that operate more efficiently and at higher temperatures than existing devices, and find applications in environmental monitoring and medical diagnostics.

"This discovery provides a new insight into the physics of lasers," said Claire Gmachl, who led the study. Gmachl, an electrical engineer, is the director of the Mid-Infrared Technologies for Health and the Environment (MIRTHE) center. The phenomenon was discovered in a type of device called quantum cascade laser, in which an electric current flowing through a specially designed material produces a laser beam. Gmachl's group discovered that a quantum cascade laser they had built generated a second beam with very unusual properties, including the need for less electrical power than the conventional beam. "If we can turn off the conventional beam, we will end up with a better laser, which makes more efficient use of electrical power," said Gmachl.

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