A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Monday, January 19, 2009
Heavy Rains Damage Peru's Nazca Lines
From Yahoo News/AP:
LIMA, Peru – Heavy rains have damaged part of one of Peru's top tourist destination, depositing clay and sand on mysterious figures etched in the desert sand by indigenous groups centuries ago, an archaeologist said Monday.
The rains, which are uncommon on Peru's dry coastal desert, washed off the nearby Panamerican highway and pushed sand on top of three fingers of a geoglyph in the famed Nazca lines, said Mario Olaechea of Peru's National Culture Institute. The fingers form part of a pair of hands.
Olaechea told The Associated Press that the damage is minor and the institute plans to clear the material and restore the geoglyph.
Read more ....
If There IS Life On Mars, This Is Where It Lives
From The Daily Mail:
If there is life on Mars as NASA scientists claim, this is where it lives.
This extraordinarily detailed picture shows exactly where the most methane, taken as an indication of life, can be found.
Appropriately enough for the sphere dubbed the Red Planet , the scarlet areas are the places where scientists have detected the most of the gas.
The picture was released by NASA just days after the U.S. space agency confirmed the presence of methane on Mars.
It is the first 'definitive proof' of plumes of the gas seeping from the planet's northern hemisphere.
And it is the strongest hint yet that alien microbes could be thriving deep below the red, dusty surface.
On Earth, 90 per cent of the methane produced is released by living organisms far beneath the soil.
'It might be possible for similar organisms to survive for billions of years below the permafrost layer on Mars, where water is liquid, radiation supplies energy, and carbon dioxide provides carbon,' said NASA scientist Professor Michael Mumma.
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Sunspot Lapse Exceeds 95% of Normal
Above: The solar cycle, 1995-2015. The "noisy" curve traces measured sunspot numbers; the smoothed curves are predictions. Credit: D. Hathaway/NASA/MSFC.
From Watts Up With That:
Well John Christy gave me a lot to think about in satellite temp trends as far as an improved correction over my last post. Steve McIntyre pitched in some comments as well. It is going to take a bit to work out the details of that for me but I think I can produce an improved accuracy slope over my last posts. In the meantime, I downloaded sunspot numbers from the NASA.
Cycles are interesting things. There are endless cycles in nature, orbits, ocean temp shifts, solar cycles, magnetic cycles the examples are everywhere. What makes a cycle unusual is also an interesting topic. Some solar scientists have claimed that our current solar cycle is not unusual by the record. They are certainly the experts but recently the experts have been forced to update their predictions for the next solar cycle.
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Scientists To Solve Astronomical Riddle Using Galileo DNA
NASA image shows hot blue stars deep inside an elliptical galaxy. Italian scientists are trying to get Galileo's DNA in order to figure out how the astronomer forged groundbreaking theories on the universe while gradually becoming blind, a historian said Monday. (AFP/NASA/File)
From Yahoo News/AFP:
ROME (AFP) – Italian scientists are trying to get Galileo's DNA in order to figure out how the astronomer forged groundbreaking theories on the universe while gradually becoming blind, a historian said Monday.
Scientists at Florence's Institute and Museum of the History of Science want to exhume the body of 17th Century astronomer Galileo Galilei to find out exactly what he could see through his telescope.
The Italian astronomer -- who built on the work of predecessor Nicolaus Copernicus to develop modern astronomy with the sun as the centre of the universe -- had a degenerative eye disease that eventually left him blind.
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DNA Testing May Unlock Secrets Of Medieval Manuscripts
From E! Science News:
Thousands of painstakingly handwritten books produced in medieval Europe still exist today, but scholars have long struggled with questions about when and where the majority of these works originated. Now a researcher from North Carolina State University is using modern advances in genetics to develop techniques that will shed light on the origins of these important cultural artifacts. Many medieval manuscripts were written on parchment made from animal skin, and NC State Assistant Professor of English Timothy Stinson is working to perfect techniques for extracting and analyzing the DNA contained in these skins with the long-term goal of creating a genetic database that can be used to determine when and where a manuscript was written. "Dating and localizing manuscripts have historically presented persistent problems," Stinson says, "because they have largely been based on the handwriting and dialect of the scribes who created the manuscripts – techniques that have proven unreliable for a number of reasons."
Read more ....
Thousands of painstakingly handwritten books produced in medieval Europe still exist today, but scholars have long struggled with questions about when and where the majority of these works originated. Now a researcher from North Carolina State University is using modern advances in genetics to develop techniques that will shed light on the origins of these important cultural artifacts. Many medieval manuscripts were written on parchment made from animal skin, and NC State Assistant Professor of English Timothy Stinson is working to perfect techniques for extracting and analyzing the DNA contained in these skins with the long-term goal of creating a genetic database that can be used to determine when and where a manuscript was written. "Dating and localizing manuscripts have historically presented persistent problems," Stinson says, "because they have largely been based on the handwriting and dialect of the scribes who created the manuscripts – techniques that have proven unreliable for a number of reasons."
Read more ....
Growing Bird Populations Show Conservation Successes
The Canada goose (Branta canadensis), which is sometimes incorrectly referred to as the Canadian goose, has a wingspan of 50 to 67 inches (127 to 170 centimeters) and can weigh from more than 6 pounds to nearly 20 pounds (3 kg to 9 kg). Credit: Stock.xchng.
From Live Science:
At a time when scientists are sounding ever more frequent alarms on the potential extinction of this creature or that, yesterday's collision with a flock of geese that put an airliner in the Hudson River is a reminder that some species are doing just fine.
Many birds have been faring well in the United States, even in urban environments (and in some cases especially in them), over the past few decades, say two bird experts and conservationists.
"Birds are increasing and that's good," said Kevin McGowan of the Cornell Laboratory of Ornithology in New York. "People have worked hard to do that kind of thing. Most people like it. We don't always hear enough about the fact that a lot of things are doing well."
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Scientists Resolve Mystery Of How Massive Stars Form
Volume renderings of the density field in a region of the simulation at 55,000 years of evolution. The left panel shows a polar view, and the right panel shows an equatorial view. The fingers feeding the equatorial disk are clearly visible. (Credit: Image courtesy of DOE/Lawrence Livermore National Laboratory)
From Science Daily:
ScienceDaily (Jan. 18, 2009) — Scientists may have solved one of the most longstanding astrophysical mysteries of all times: How massive stars – up to 120 times the mass of our sun – form without blowing away the clouds of gas and dust that feed their growth.
New research by Lawrence Livermore National Laboratory, University of California, Santa Cruz and UC Berkeley has shown how a massive star can grow despite outward-flowing radiation pressure that exceeds the gravitational force pulling material inward. The study appears in the Jan. 15 online edition of Science Express.
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Sunday, January 18, 2009
The Afterlife Of Near-Death
From International Herald Tribune:
Every experienced flier has sensed a whisper of death in a blast of turbulence at 25,000 feet, and many will swear they've heard their names called, loud and clear.
It's not a moment people forget.
"All I could think about," said a 50-year old nurse who'd recently been in a plane that lost an engine, "was my garage. How I hadn't cleaned it, and how messy it would be when someone came in and saw it. It's crazy what you think about."
The mind reels in the presence of death.
From the shore and TV screens, the evacuation of a US Airways jet that ditched in the Hudson River on Thursday looked almost stage-managed, a slow-motion rescue complete with heroes and zero death.
Read more ....
Liquid Wood Is Plastic of Tomorrow, Say Scientists
From Deutsche Welle:
Plastic was one of the great innovations of the 20th century, but German scientists believe a new invention, liquid wood, could soon supplant the chemical in terms of everyday usefulness.
Though it has proven to be extremely useful in the modern world, plastic still has a number of negative selling points. It is non-biodegradable and can contain carcinogens and other toxic substances that can cause cancer.
It is also based on petroleum, a non-renewable resource that will soon be harder to come by. Increases in the price of crude oil leads to parallel rises in the price of plastics.
But there is a new chemical invention that could do away with these long-standing concerns.
Read more ....
Friday, January 16, 2009
Science Closing In On Cloak Of Invisibility
From Breitbart/AP:
WASHINGTON (AP) - They can't match Harry Potter yet, but scientists are moving closer to creating a real cloak of invisibility.
Researchers at Duke University, who developed a material that can "cloak" an item from detection by microwaves, report that they have expanded the number of wavelengths they can block.
Last August the team reported they had developed so-called metamaterials that could deflect microwaves around a three-dimensional object, essentially making it invisible to the waves.
The system works like a mirage, where heat causes the bending of light rays and cloaks the road ahead behind an image of the sky.
The researchers report in Thursday's edition of the journal Science that they have developed a series of mathematical commands to guide the development of more types of metamaterials to cloak objects from an increasing range of electromagnetic waves.
Read more ....
WASHINGTON (AP) - They can't match Harry Potter yet, but scientists are moving closer to creating a real cloak of invisibility.
Researchers at Duke University, who developed a material that can "cloak" an item from detection by microwaves, report that they have expanded the number of wavelengths they can block.
Last August the team reported they had developed so-called metamaterials that could deflect microwaves around a three-dimensional object, essentially making it invisible to the waves.
The system works like a mirage, where heat causes the bending of light rays and cloaks the road ahead behind an image of the sky.
The researchers report in Thursday's edition of the journal Science that they have developed a series of mathematical commands to guide the development of more types of metamaterials to cloak objects from an increasing range of electromagnetic waves.
Read more ....
Scientists Left Baffled As Mysterious Columns Of Coloured Light Appear In The Night Skies
From The Daily Mail:
These stunning images show mysterious columns of light streaming into the sky above the town of Sigulda in Latvia at the end of last month.
Taken by designer Aigar Truhins with a standard digital camera, the photographs have prompted excited online discussions among amateur astronomists all over the internet.
'My son exclaimed, 'The aliens are coming!'' Truhins was quoted as saying.
Read more ....
Thursday, January 15, 2009
Exoplanet Atmospheres Detected From Earth
This artist's impression shows the star OGLE-TR-56 and its planet, as it passes behind the star. (Credit: Copyright D. Sing (IAP) / A&A)
From Science Daily:
ScienceDaily (Jan. 15, 2009) — Two independent groups have simultaneously made the first-ever ground-based detection of extrasolar planets thermal emissions. Until now, virtually everything known about atmospheres of planets orbiting other stars in the Milky Way has come from space-based observations.
These new results open a new frontier to studying these alien worlds and are especially critical because the major space-based workhorse to these studies, the Spitzer telescope, will soon run out of cryogens, highly limiting its capabilities.
Read more ....
How Birds Can Down a Jet Airplane
From Live Science:
Early reports suggest that a bird strike caused a jet plane to crash in the Hudson River near Manhattan today, leaving questions about how a little flying animal could down a big airliner.
More than 200 people have been killed worldwide as a result of wildlife strikes with aircraft since 1988, according to Bird Strike Committee USA, and more than 5,000 bird strikes were reported by the U.S. Air Force in 2007. Bird strikes, or the collision of an aircraft with an airborne bird, tend to happen when aircraft are close to the ground, which means just before landing or after take-off, when jet engines are turning at top speeds.
Read more ....
Life On Mars? Methane 'Plumes' Raise Tantalising Prospect Of Organisms On Red Planet
From The Daily Mail:
The prospect of finding life on Mars came a step closer yesterday after Nasa revealed it had discovered 'plumes' of methane gas seeping from the planet.
When methane was first found in the Martian atmosphere in 2003, some scientists claimed it could have been dumped on the planet by comets.
But the latest discovery is proof that it is actually produced on the Red Planet.
The pinpointing of the location of the plumes of gas also offers scientists likely places to dig for life.
Nasa's announcement yesterday is highly significant because most of the methane on Earth is produced by living organisms - raising the possibility that some form of life, even if just microbes, are alive deep within the soil.
Read more ....
Inside the Savant Mind: Tips for Thinking from an Extraordinary Thinker
From Scientific American:
Daniel Tammet is the author of two books, Born on a Blue Day and Embracing the Wide Sky, which comes out this month. He’s also a linguist and holds the European record for reciting the first 22,514 decimal points of the mathematical constant Pi. Mind Matters editor Jonah Lehrer chats with Tammet about how his memory works, why the IQ test is overrated, and a possible explanation for extraordinary feats of creativity.
Read more ....
Wednesday, January 14, 2009
High Caffeine Intake Linked To Hallucination Proneness
People with a higher caffeine intake, from sources such as coffee, tea and caffeinated energy drinks, are more likely to report hallucinatory experiences such as hearing voices and seeing things that are not there. (Credit: iStockphoto/Ong Kok Keat)
From Science Daily:
High caffeine consumption could be linked to a greater tendency to hallucinate, a new research study suggests.
People with a higher caffeine intake, from sources such as coffee, tea and caffeinated energy drinks, are more likely to report hallucinatory experiences such as hearing voices and seeing things that are not there, according to the Durham University study.
‘High caffeine users’ – those who consumed more than the equivalent of seven cups of instant coffee a day - were three times more likely to have heard a person’s voice when there was no one there compared with ‘low caffeine users’ who consumed less than the equivalent of one cup of instant coffee a day. With ninety per cent of North Americans consuming some of form caffeine every day, it is the world's most widely used drug.
Read more ....
My Comment: OK .... I Confess. I need at least 2 cups of coffee a day .... minimum.
History Corrected By 400-Year-Old Moon Map
Thomas Harriot's map of the whole Moon, made after looking through an early telescope. This image accurately depicts many lunar features including the principal Maria (lunar 'seas' - actually lava-filled basins) and craters. Labelled features include Mare Crisium ('18') on the right hand side and the craters Copernicus ('b') and Kepler ('c') in the upper left of the disk. Credit: © Lord Egremont
From Live Science:
Galileo Galilei is often credited with being the first person to look through a telescope and make drawings of the celestial objects he observed. While the Italian indeed was a pioneer in this realm, he was not the first.
Englishman Thomas Harriot made the first drawing of the moon after looking through a telescope several months before Galileo, in July 1609.
Historian Allan Chapman of the University of Oxford details that 400-year-old breakthrough in astronomy in the February 2009 edition of Astronomy and Geophysics, a journal of the Royal Astronomical Society.
Read more ....
Revealed: Why Beautiful Women Are More Likely To Be Unfaithful... It's The Marilyn Hormone
Marilyn Monroe's hourglass figure was caused by the same hormone
that triggered her affairs according to scientists
that triggered her affairs according to scientists
From The Daily Mail:
With her drop-dead curves, Marilyn Monroe's voluptuous hourglass figure has long been regarded as the absolute essence of what it means to be a sexy woman.
But the female hormone that made the film star so desirable was the key behind her inability to hold down a steady relationship, according to scientists.
Those with the most oestradiol, a form of oestrogen, are usually more physically attractive and find it easier to snare a man.
But they are also less satisfied with their current lovers - and therefore more likely to cheat, according to the findings published in the Royal Society's journal Biology Letters.
Read more ....
Tuesday, January 13, 2009
Misuse Of Vicks VapoRub May Harm Infants And Toddlers
From E! Science News:
Vicks® VapoRub®, the popular salve used to relieve symptoms of cough and congestion, may be harmful for infants and toddlers. New research appearing in the January issue of CHEST, the peer-reviewed journal of the American College of Chest Physicians (ACCP), shows that Vicks® VapoRub® (VVR) may stimulate mucus production and airway inflammation, which can have severe effects on breathing in an infant or toddler. Research findings are consistent with current VVR labeling which indicates the product should not be used on children under 2 years of age. "The ingredients in Vicks can be irritants, causing the body to produce more mucus to protect the airway," said Bruce K. Rubin, MD, FCCP, the study's lead author from the Department of Pediatrics at Wake Forest University School of Medicine, Winston Salem, NC. "Infants and young children have airways that are much narrower than those of adults, so any increase in mucus or inflammation can narrow them more severely."
Read more ....
Vicks® VapoRub®, the popular salve used to relieve symptoms of cough and congestion, may be harmful for infants and toddlers. New research appearing in the January issue of CHEST, the peer-reviewed journal of the American College of Chest Physicians (ACCP), shows that Vicks® VapoRub® (VVR) may stimulate mucus production and airway inflammation, which can have severe effects on breathing in an infant or toddler. Research findings are consistent with current VVR labeling which indicates the product should not be used on children under 2 years of age. "The ingredients in Vicks can be irritants, causing the body to produce more mucus to protect the airway," said Bruce K. Rubin, MD, FCCP, the study's lead author from the Department of Pediatrics at Wake Forest University School of Medicine, Winston Salem, NC. "Infants and young children have airways that are much narrower than those of adults, so any increase in mucus or inflammation can narrow them more severely."
Read more ....
Is A 'Katrina-Like' Space Storm Brewing?
In this file photo, the sun-orbiting SOHO spacecraft has imaged many erupting filaments lifting off the active solar surface and blasting enormous bubbles of magnetic plasma into space. U.S. scientists worry we aren't ready for a solar space storm which could knock out our electricity, cell phones, even our water supply. Collapse. (Courtesy NASA/JPL )
From ABC News:
Scientists Worry We Aren't Prepared for Event That Could Zap Government, Cost Trillions.
U.S. scientists worry we aren't ready for a solar space storm that could knock out our electricity, our cell phones, even our water supply.
The chances of that happening are small, but it is a possibility as we move into an active period of solar storms.
How do they know? Well, it's happened before. Back in 1859, a solar eruption resulted in telegraph wires burning up.
Of course, the world is now covered in wires and wireless devices that could be vulnerable.
The National Academy of Sciences (NAS) gathered experts from around the country to look at the economic and social costs from these space storms. While they didn't make any recommendations, the scientists hope their report is a wake-up call.
Read more ....
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