A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Friday, July 31, 2009
Nap Time! One-Third Of Americans Do It
From Live Science:
A mid-day nap is more common than you might think in America.
One-third of U.S. adults nap on a typical day, according to a new survey from the Pew Research Center.
Naps are more common among men than women, and more common among the poor than the rich.
Naps can be good for you. A study last year in the journal Nature Neuroscience found a 90-minute daytime nap helped test subjects remember things better.
And naps are natural. Humans are bi-phasic sleepers, experts say, which means we're meant to sleep in bouts, not long stretches.
The new survey of 1,488 adults was released this week.
Read more ....
My Comment: I am one of the guilty nappers.
Why Does Coke From a Glass Bottle Taste Different?
The Usual Suspects: Various container materials might impart slight changes to Coke's flavor. Courtesy The Coca-Cola Company
From Popular Science:
It doesn’t. That’s what Coca-Cola’s spokespeople say, anyway. “The great taste of Coca-Cola is the same regardless of the package it comes in,” they insist. Rather, they say, “the particular way that people choose to enjoy their Coke can affect their perception of taste.” Sure, most people would agree that the cola is indeed delicious and refreshing, and pouring it into a glass or serving it over ice could influence the sensation of its flavor. But is it possible that the subtle variation in taste that some notice among aluminum cans, plastic bottles and glass bottles is more than just a psychological effect of their soda-consumption rituals?
Read more ....
Space Shuttle Endeavour Successfully Lands Back At Florida -- News Roundups
This NASA image taken by the crew aboard the International Space Station shows the space shuttle Endeavour shortly after the shuttle and station began their post-undocking separation on July 28, 2009. Endeavor is scheduled to land Friday at the Kennedy Space Center in Florida. The STS-127 crew was on a 13-day service mission to the International Space Station. (UPI Photo/Kevin Dietsch)
Shuttle Back After 16-Day Mission -- New York Times
KENNEDY SPACE CENTER, Fla. — The shuttle Endeavour closed out a grueling 16-day space station assembly mission with a smooth Florida landing on Friday, bringing Japan’s first long-duration astronaut back to Earth after four and one-half months in orbit.
Approaching from the south after a high-speed computer-orchestrated descent, the mission commander, Mark Polansky, took over manual control 50,000 feet above the Florida spaceport, banked to line up on runway 15 and guided the 110-ton shuttle to a picture-perfect touchdown at 10:48 a.m. Eastern time.
“Welcome home. Congratulations on a superb mission from beginning to end,” astronaut Alan Poindexter radioed from mission control in Houston. “Very well done.”
Read more ....
More News On Today's Landing Of The Space Shuttle Endeavour
Space shuttle Endeavour lands safely after 16-day mission -- AFP
Shuttle Endeavour, 7 astronauts return to Earth -- AP
Space shuttle Endeavour returns home to Florida -- Reuters
Shuttle Endeavour Lands Safely -- FOX News
Space shuttle Endeavour returns home -- UPI
Space shuttle touches down safely -- BBC
Endeavour lands safely -- CBC
Cdn astronaut Julie Payette lands aboard shuttle Endeavour after 16-day mission -- Canadian Press
Astronaut Koichi Wakata didn't change underwear for a month -- Times Online
Italian Archaeologists Find Lost Roman City Of Altinum Near Venice
From Times Online:
The bustling harbour of Altinum near Venice was one of the richest cities of the Roman empire. But terrified by the impending invasion of the fearsome Germanic Emperor Attila the Hun, its inhabitants cut their losses and fled in AD452, leaving behind a ghost town of theatres, temples and basilicas.
Altinum was never reoccupied and gradually sunk into the ground. The city lived on in Venetian folk tales and historical artefacts but its exact position, size and wealth gradually faded into obscurity.
Now, using aerial photography of the region, Italian archaeologists have not only located the city, but have produced a detailed map revealing its remarkably intact infrastructure and showing it to be slightly larger than Pompeii.
Read more ....
The bustling harbour of Altinum near Venice was one of the richest cities of the Roman empire. But terrified by the impending invasion of the fearsome Germanic Emperor Attila the Hun, its inhabitants cut their losses and fled in AD452, leaving behind a ghost town of theatres, temples and basilicas.
Altinum was never reoccupied and gradually sunk into the ground. The city lived on in Venetian folk tales and historical artefacts but its exact position, size and wealth gradually faded into obscurity.
Now, using aerial photography of the region, Italian archaeologists have not only located the city, but have produced a detailed map revealing its remarkably intact infrastructure and showing it to be slightly larger than Pompeii.
Read more ....
Panel Wants Deep Space, Not Landings as U.S. Goal
From The New York Times:
A panel examining the future of the United States’ human spaceflight program will suggest that the Obama administration may want to skip the part about landing on other worlds.
That could, panel members said Thursday, enable the National Aeronautics and Space Administration to send astronauts to more corners of the solar system more quickly while keeping within a limited budget. But it would also eliminate the possibility of astronauts leaving new iconic footprints on the Moon or Mars for a couple of decades.
At a public meeting in Cocoa Beach, Fla., the 10-member panel discussed at length the possibilities of where NASA might go next and how it might get there.
Read more ....
A panel examining the future of the United States’ human spaceflight program will suggest that the Obama administration may want to skip the part about landing on other worlds.
That could, panel members said Thursday, enable the National Aeronautics and Space Administration to send astronauts to more corners of the solar system more quickly while keeping within a limited budget. But it would also eliminate the possibility of astronauts leaving new iconic footprints on the Moon or Mars for a couple of decades.
At a public meeting in Cocoa Beach, Fla., the 10-member panel discussed at length the possibilities of where NASA might go next and how it might get there.
Read more ....
Crew Inspects Shuttle And Preps For Landing Friday
From Space Daily:
Twin satellite deployments and a check of the systems that will control Endeavour's return home to the Kennedy Space Center, Florida, are on tap today as the shuttle leads the International Space Station in orbit.
The crew was awakened at 1:03 a.m. CDT to the sounds of "I Got You Babe," performed by Sonny and Cher. The song was a special request for Koichi Wakata, the first Japan Aerospace Exploration Agency astronaut to serve as a long-duration resident of the station. Wakata spent 133 days as an Expedition 18, 19 and 20 crewmember, and will be returning home after 138 days in space.
Read more ....
Twin satellite deployments and a check of the systems that will control Endeavour's return home to the Kennedy Space Center, Florida, are on tap today as the shuttle leads the International Space Station in orbit.
The crew was awakened at 1:03 a.m. CDT to the sounds of "I Got You Babe," performed by Sonny and Cher. The song was a special request for Koichi Wakata, the first Japan Aerospace Exploration Agency astronaut to serve as a long-duration resident of the station. Wakata spent 133 days as an Expedition 18, 19 and 20 crewmember, and will be returning home after 138 days in space.
Read more ....
Human Activity Is Driving Earth's 'Sixth Great Extinction Event'
The leatherback turtle is endangered - but scientiļ¬c reports expose worrying signs of mass extinctions among other wildlife species. Photograph: Frans Lemmens/Getty Images
From The Guardian:
Population growth, pollution and invasive species are having a disastrous effect on species in the southern hemisphere, a major review by conservationists warns.
Earth is experiencing its "sixth great extinction event" with disease and human activity taking a devastating toll on vulnerable species, according to a major review by conservationists.
Much of the southern hemisphere is suffering particularly badly, and Australia, New Zealand and neighbouring Pacific islands may become the extinction hot spots of the world, the report warns.
Read more ....
Thursday, July 30, 2009
Mysterious Bright Spot Found On Venus
A new, bright spot in the clouds of Venus was found by amateur astronomer Frank Melillo on 19 July (Illustration: Melillo/Maxson/ESA/University of Wisconsin-Madison/ALPO)
From New Scientist:
A strange spot emerged on Venus last week, and astronomers are not sure what caused it. They hope future observations will reveal whether volcanic activity, turbulence in the planet's atmosphere, or charged particles from the sun are to blame.
Amateur astronomer Frank Melillo of Holtsville, New York, first spotted the new feature, which is brighter than its surroundings at ultraviolet wavelengths, on the planet's southern hemisphere on 19 July. That same day, an amateur observer in Australia found a dark spot on Jupiter that had been caused by a meteoroid impact.
Read more ....
Red Hot: Ferrari Previews F430 Successor
Ferrari 458 Italia Set for Frankfurt Debut this Fall: Ferrari today revealed its latest V8-powered sports car, the Pininfarina-designed 458 Italia. A successor to the current F430, the 458 gets a new, high-compression 4.5-liter V8 producing 570 horsepower and 398 pounds-feet of torque. Top Speed: 202 mph. Ferrari
From Popsci.com:
There's nothing like the curves of a new Ferrari to bring optimism back to the table. Ferrari today revealed its latest V8-powered sports car, the 458 Italia. The new model will succeed the current V8 hottie, the F430. Sporting a sexy new design by long-time Ferrari styling partner Pininfarina, the 458 Italia gets a new, high-compression 4.5-liter V8 producing 570 horsepower and 398 pounds-feet of torque. Top Speed: 202 mph. That makes it the first stock V8 Ferrari to break the 200-mph mark.
Read more ....
Will Comets Wipe Out Life On Planet Earth? -- News Roundup
According to scientists Jupiter and Saturn have protected life on Earth for hundreds of millions of years by catching and batting away dangerous comets Photo: PA
Comet 'Unlikely To Wipe Out Earth' -- The Telegraph
The Earth is being protected from comets, thanks to the gravitational pulls of Saturn and Jupiter, according to new research
It is the plot of many a Hollywood science fiction thriller - a comet on a direct collision course with Earth destined to wipe out all known life.
But the producers of Deep Impact and other blockbusters might be wide of the mark, scientists have found, as new evidence suggests comets pose less of a threat to life on earth than previously imagined.
Read more ....
More News On Comets And Striking The Earth
Comets probably won't destroy life on Earth, researchers say -- National Post
Comets probably won't cause the end of life as we know it: study -- AFP
Comets Not So Likely to Smash Into Earth and Kill Us All -- Discover Magazine
Comets From Edge of Solar System Unlikely to Hit Earth -- Space.com
Comet Collisions Won’t Spark The End Of The World -- Red Orbit
Doomsday Comet Less Likely, Calculations Show -- Discovery
Crashing Comets Not Likely The Cause Of Earth's Mass Extinctions -- Science Daily
White Roofs Catch On as Energy Cost Cutters
A Wal-Mart store in Chino, Calif., has both a cool roof and solar panels to cut its energy use. J. Emilio Flores for The New York Times
From The New York Times:
SAN FRANCISCO — Returning to their ranch-style house in Sacramento after a long summer workday, Jon and Kim Waldrep were routinely met by a wall of heat.
“We’d come home in the summer, and the house would be 115 degrees, stifling,” said Mr. Waldrep, a regional manager for a national company.
He or his wife would race to the thermostat and turn on the air-conditioning as their four small children, just picked up from day care, awaited relief.
All that changed last month. “Now we come home on days when it’s over 100 degrees outside, and the house is at 80 degrees,” Mr. Waldrep said.
Their solution was a new roof: a shiny plasticized white covering that experts say is not only an energy saver but also a way to help cool the planet.
Relying on the centuries-old principle that white objects absorb less heat than dark ones, homeowners like the Waldreps are in the vanguard of a movement embracing “cool roofs” as one of the most affordable weapons against climate change.
Read more ....
Fiery Images As Killer Volcano That Claimed 36,000 Lives Stirs Once More
Ticking timebomb: Islanders thought they had avoided
another disaster after things went quiet last year
another disaster after things went quiet last year
From The Telegraph:
An amateur photographer has captured new images of the re-awakening of the world's most famous volcano.
In a breathtaking series Marco Fulle, who specialises in shots of comets, has photographed the Anak Krakatoa against a backdrop of constellations such as the Big Dipper.
These stunning pictures show the latest activity during the rebirth of the infamous volcano which holds a long-standing record for causing the highest number of human deaths ever - a staggering 36,000 in 1883.
Read more ....
Who Should Get the H1N1 Vaccine First?
A doctor at the Centers for Disease Control examines specimens in an effort to develop new influenza vaccines. James Gathany / CDC / Reuters
From Time Magazine:
World health officials are carefully watching the H1N1/09 swine flu virus as it makes it way through the Southern Hemisphere, which is currently in the thick of its flu season. They are particularly interested in seeing how severely the virus affects infected people in parts of Africa, South America and Australia, since their illnesses could be a good predictor of how aggressive the virus will be when flu season returns to the rest of the world in the fall.
Read more ....
Adult Brain Can Change Within Seconds
The human brain can adapt to changing demands even in adulthood, but MIT neuroscientists have now found evidence of it changing with unsuspected speed. Their findings suggest that the brain has a network of silent connections that underlie its plasticity. (Credit: iStockphoto/Sebastian Kaulitzki)
From Science Daily:
ScienceDaily (July 30, 2009) — The human brain can adapt to changing demands even in adulthood, but MIT neuroscientists have now found evidence of it changing with unsuspected speed. Their findings suggest that the brain has a network of silent connections that underlie its plasticity.
The brain’s tendency to call upon these connections could help explain the curious phenomenon of “referred sensations,” in which a person with an amputated arm “feels” sensations in the missing limb when he or she is touched on the face. Scientists believe this happens because the part of the brain that normally receives input from the arm begins “referring” to signals coming from a nearby brain region that receives information from the face.
Read more ....
WD-40: Strange Facts and Myths
From Live Science:
John S. Barry, the man "who masterminded the spread of WD-40," as The New York Times puts it, has died at age 84. The product he promoted is more popular than an iPod.
WD-40 can be found in 4 out of 5 American households, the company claims. Its ingredients are a secret, and it has generated its share of myths and strange applications over the years.
Barry didn't invent the stuff. "Norm Larsen, founder of Rocket Chemical Company, is considered the original founder of WD-40," according to wd40.com.
Read more ....
John S. Barry, the man "who masterminded the spread of WD-40," as The New York Times puts it, has died at age 84. The product he promoted is more popular than an iPod.
WD-40 can be found in 4 out of 5 American households, the company claims. Its ingredients are a secret, and it has generated its share of myths and strange applications over the years.
Barry didn't invent the stuff. "Norm Larsen, founder of Rocket Chemical Company, is considered the original founder of WD-40," according to wd40.com.
Read more ....
Beyond The Solar System
Far out: Pluto’s methane ice boils off into its thin atmosphere in a misty scene no human has observed. In the background are Pluto moons Charon and tiny Nix (upper left). Beyond lies the Kuiper Belt, one of the solar system’s most mysterious regions. (Illustration by Ron Miller
Where the Wild Things Are -- Air & Space
We’re about to get a peek at the solar system’s final frontier.
Twenty years ago, the existence of a distant wilderness beyond Neptune—seeded with tiny planets, dormant comets, and bits of ice and rock —was mere conjecture. There was Pluto, discovered practically by luck in 1930, and that was it. Astronomers photographed squares of the night sky and compared the images to see if anything was moving, but either their technology was not good enough, or they were searching in the wrong place. Or there was nothing more to find.
Read more ....
Can The Military Find The Answer To Alternative Energy?
From Business Week:
DARPA, the Defense Dept. agency that helped invent the Internet, is setting its sights on cleantech.
Nine years ago, Robert J. Nowak, an electro-chemicals expert for the Defense Dept., learned that senior generals weren't happy with their troops' electronic gear. While the night-vision, laser, and GPS devices worked well, the batteries that powered them weighed some 25 pounds per soldier, heavy enough to hurt some of the troops.
So Nowak, who worked at the Defense Advanced Research Projects Agency (DARPA), the Defense Dept.'s famous research branch, solicited bids for a new device that would power a soldier's gear at a tenth of the weight and a fraction of the $100 cost of the batteries. Today, the original 18 companies that took up Nowak's challenge have been whittled down to two: Livermore (Calif.)-based UltraCell and Adaptive Materials of Ann Arbor, Mich. Their solution: small, sturdy fuel cells that can power a soldier's clutch of mobile devices for a week on a gallon or so of methanol or propane. Battle-ready versions of the fuel cells will be available this year.
Read more ....
My Comment: The military are the biggest consumers of energy. If they can find a way to provide alternative energy, this will go a long way to help the everyday consumer.
DARPA, the Defense Dept. agency that helped invent the Internet, is setting its sights on cleantech.
Nine years ago, Robert J. Nowak, an electro-chemicals expert for the Defense Dept., learned that senior generals weren't happy with their troops' electronic gear. While the night-vision, laser, and GPS devices worked well, the batteries that powered them weighed some 25 pounds per soldier, heavy enough to hurt some of the troops.
So Nowak, who worked at the Defense Advanced Research Projects Agency (DARPA), the Defense Dept.'s famous research branch, solicited bids for a new device that would power a soldier's gear at a tenth of the weight and a fraction of the $100 cost of the batteries. Today, the original 18 companies that took up Nowak's challenge have been whittled down to two: Livermore (Calif.)-based UltraCell and Adaptive Materials of Ann Arbor, Mich. Their solution: small, sturdy fuel cells that can power a soldier's clutch of mobile devices for a week on a gallon or so of methanol or propane. Battle-ready versions of the fuel cells will be available this year.
Read more ....
My Comment: The military are the biggest consumers of energy. If they can find a way to provide alternative energy, this will go a long way to help the everyday consumer.
Organic 'Has No Health Benefits'
From The BBC:
Organic food is no healthier than ordinary food, a large independent review has concluded.
There is little difference in nutritional value and no evidence of any extra health benefits from eating organic produce, UK researchers found.
The Food Standards Agency who commissioned the report said the findings would help people make an "informed choice".
But the Soil Association criticised the study and called for better research.
Researchers from the London School of Hygiene and Tropical Medicine looked at all the evidence on nutrition and health benefits from the past 50 years.
Read more ....
Organic food is no healthier than ordinary food, a large independent review has concluded.
There is little difference in nutritional value and no evidence of any extra health benefits from eating organic produce, UK researchers found.
The Food Standards Agency who commissioned the report said the findings would help people make an "informed choice".
But the Soil Association criticised the study and called for better research.
Researchers from the London School of Hygiene and Tropical Medicine looked at all the evidence on nutrition and health benefits from the past 50 years.
Read more ....
Humans Time Blinks So They Don't Miss Information
From The Telegraph:
Humans subconsciously time their blinks so not to miss useful information, scientists have found.
A study of eighteen volunteers found they synchronized their blinks while watching video clips taken from the comedy TV show Mr Bean.
But the same phenomenon did not occur when they viewed a background video or listened to an audio recording of a Harry Potter book.
Dr Tamami Nakano, of Tokyo University, said: "We seem to be unconsciously searching for a good timing for a blink to minimize the chance of losing critical information during the blink."
Read more ....
Humans subconsciously time their blinks so not to miss useful information, scientists have found.
A study of eighteen volunteers found they synchronized their blinks while watching video clips taken from the comedy TV show Mr Bean.
But the same phenomenon did not occur when they viewed a background video or listened to an audio recording of a Harry Potter book.
Dr Tamami Nakano, of Tokyo University, said: "We seem to be unconsciously searching for a good timing for a blink to minimize the chance of losing critical information during the blink."
Read more ....
Wednesday, July 29, 2009
Neuroscientist's Research Holds Clues About Short-Term Memory
George Mason graduate student John Fedota, right, takes the kind of memory test that helped identify Subject 7 at Raja Parasuraman's lab. "Ninety percent of neuroscience work has been done on animals. The techniques are all invasive and cannot be used on humans. But in the last 20 years we’ve developed noninvasive techniques to study human brain functions," says Parasuraman.
From Popular Mechanics:
What is a cognitive superstar? One grad student's exceptional brain could help settle the debate of nature versus nurture. For a full interview with neuroscientist Raja Parasuraman.
Last year, Raja Parasuraman was conducting a study of brain function among 650 participants at George Mason University in Virginia, when he stumbled across what he calls a “cognitive superstar.” The university professor studies neuroergonomics—a merger of neuroscience, the study of the brain, with ergonomics, the study of how to design systems and tech-nologies to be more compatible with users. Parasuraman hooks subjects to MRI, EEG and other brain scanners while conducting memory and attention tests to see what parts of the brain activate.
Read more ....
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