A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Saturday, September 26, 2009
Scientists See Numbers Inside People's Heads
From Live Science:
By carefully analyzing brain activity, scientists can tell what number a person has just seen, research now reveals.
They can similarly tell how many dots a person was presented with.
Past investigations had uncovered brain cells in monkeys that were linked with numbers. Although scientists had found brain regions linked with numerical tasks in humans — the frontal and parietal lobes, to be exact — until now patterns of brain activity linked with specific numbers had proven elusive.
Read more ....
Mercury Ready For A Rare Close-Up
From USA Today:
"A planetary flyby is very much like Christmas morning for the science team. We know there are presents under the tree," says Messenger principal investigator Sean Solomon of the Carnegie Institution of Washington. "We expect to be surprised and we expect to be delighted."
Take A Virtual Tour Of Ancient Manhattan
New York City is one of the world’s top tourist destinations. Yet the rise of the greatest city in the world has obliterated most traces of what the island was like before Henry Hudson sailed into New York Bay.
But now everyone can take a virtual tour of ancient Manhattan, circa 1609. The tour shows Manhattan and the surrounding land in its original shape and topography. They’re all there: the salt marshes, ponds, rivers and native settlements, all available at the click of a mouse.
Human Ancestors Conflicted on Monogamy
From Discovery Magazine:
When it comes to love, we Homo sapiens are a peculiar breed: We thrill at the thought of torrid affairs while dreaming about the perfect someone with whom we can spend the rest of our lives.
Some of this never-ending tug-of-war for our hearts is certainly cultural, but according to a new study it's also encoded in the finger bones of Neanderthals and the upright walking primate Australopithecus.
Read more ....
Aids/HIV: Where It Came From And How It Spread
Aids is now generally acknowledged to be caused by HIV which was originally transferred to humans from chimpanzees from West Africa.
The first known cases of Acquired immune deficiency syndrome (Aids) occurred in the United States in the early 1980s, among a number of homosexual men in New York and California. At that time, the illnesses were seen as rare, opportunistic and linked to cancer that seemed resistant to treatment. Before long, it became clear that the men were suffering from one illness.
As scientists delved into what had caused Aids, they discovered the human immunodeficiency virus (HIV) virus, which is know as a "lentivirus", or "slow virus", because it takes such a long time to produce any adverse effects in the body.
Read more ....
Update: Aids/HIV by numbers -- The Telegraph
I'm Smarter Than I Look: How A Colony Of Chimps Deep In The African Jungle Have Taught Themselves To UseTools
From The Daily Mail:
The BBC'S new landmark natural history series, Life, has been three long years in the making.
It is a tribute to the dedication and professionalism of a team of filmmakers prepared to go to the ends of the earth to record the most extraordinary animal behaviour.
Journalist Tom Rawstorne was invited to accompany a film crew to Africa as they filmed a community of chimpanzees who use of every day objects as tools.
Read more ....
How Astronauts Could 'Harvest' Water On The Moon
From New Scientist:
Newly confirmed water on the moon could help sustain lunar astronauts and even propel missions to Mars, if harvesting it can be made practical. A microwave device being developed by NASA could do just that.
Three spacecraft – India's Chandrayaan-1 and NASA's Cassini and Deep Impact probes – have detected the absorption of infrared light at a wavelength that indicates the presence of either water or hydroxyl, a molecule made up of a hydrogen and an oxygen atom. All found the signature to be stronger at the poles than at lower latitudes.
Read more ....
Africa's Burning Charcoal Problem
From The BBC:
At a road block in western Tanzania, miles from anywhere, a uniformed official raises a flagged barrier. Nearby is a spill of black, like an oil slick.
This is one of several checkpoints which have been set up around the country in a half-hearted attempt to curtail the largely unregulated trade of charcoal, widely used across the continent as a fuel for cooking.
The guard on duty has confiscated six sacks. They lean against one another and bleed black dust into the sand.
Read more ....
Ahead of Schedule, H1N1 Flu Season Arrives In The U.S.
From Time Magazine:
On the edge of the Western plains, in Spokane, Wash., the reports of significant student sickness started coming in this week. By Thursday morning, nine of the area's roughly 300 schools were reporting absentee rates in excess of 10%. H1N1 had arrived with the end of summer, just as expected.
"This would be comparable to what we would see in a moderate flu season in January or February," says Mark Springer, the Spokane Regional Health District's epidemiologist. "This is just a snapshot in time. We would anticipate increases."
Read more ....
Friday, September 25, 2009
Ancestral Populations Of India And Relationships To Modern Groups Revealed
From Science Daily:
In a study published in the September 24th issue of Nature, an international team describes how they harnessed modern genomic technology to explore the ancient history of India, the world's second most populous nation.
The new research reveals that nearly all Indians carry genomic contributions from two distinct ancestral populations. Following this ancient mixture, many groups experienced periods of genetic isolation from each other for thousands of years. The study, which has medical implications for people of Indian descent, was led by scientists at the Centre for Cellular and Molecular Biology (CCMB) in Hyderabad, India together with US researchers at Harvard Medical School, the Harvard School of Public Health and the Broad Institute of Harvard and MIT.
Read more ....
Moon Myths: The Truth About Lunar Effects On You
From Live Science:
The moon holds a mystical place in the history of human culture, so it's no wonder that many myths — from werewolves to induced lunacy to epileptic seizures — have built up regarding its supposed effects on us.
"It must be a full moon," is a phrase heard whenever crazy things happen and is said by researchers to be muttered commonly by late-night cops, psychiatry staff and emergency room personnel.
Read more ....
The Big Question: What Might The Existence Of Water On The Moon Mean For Space Travel?
From The Independent:
Why are we asking this now?
The American space agency Nasa announced yesterday that three separate missions examining the Moon have found clear evidence of water there. The discovery has huge implications not only for science, but geopolitics as well.
Water, as on Earth? Water you could float a boat in?
No. We are not talking oceans here, or rivers, or lakes or even puddles. What researchers claim to have found are molecules of water and hydroxyl (hydrogen and oxygen) that interact with molecules of rock and dust in the top millimetres of the Moon's surface – in essence, water-bearing minerals, rather than water that is in any way free flowing. But water is water. And water is the essential element for life on earth.
Read more ....
No Need For Panic About "Toxic" Shower Heads: Reality Check
From Popular Mechanics:
Prompted by a study tracing bacterial contamination to shower heads, news outlets across the globe have broadcast panicked reports proclaiming that shower heads harbor a bounty of germs, that shower heads may deliver a blast of bacteria, and that a long, hot shower "can kill you." Really? PM's investigation throws cold water on the claims.
Read more ....
General Electric Gives Gearless Wind Turbines A Big Boost
From Popular Science:
Magnet-based wind turbine tech moves forward with GE investment.
Conventional wind turbines have an Achilles heel in the form of their clunky and expensive gearboxes. But that could change with GE's recent purchase of a company that has developed gearless turbine technology based on magnets.
Gearboxes act as the middleman to convert the slow rotations of wind turbine blades into the faster rotations needed for generators to create electricity. The downside of such gears comes from their high-maintenance requirements due to constant stress from wind turbulence.
Read more ....
Get Nervous: Rusty Soviet Doomsday System Still Turned On
From Gizmodo:
Wired Magazine has a fascinating article on the doomsday system that was built by the Soviets 25 years ago. It was designed to obliterate the US no matter what happened to the USSR—and it still works today. Shiver.
The point of the system, he explains, was to guarantee an automatic Soviet response to an American nuclear strike. Even if the US crippled the USSR with a surprise attack, the Soviets could still hit back. It wouldn't matter if the US blew up the Kremlin, took out the defense ministry, severed the communications network, and killed everyone with stars on their shoulders. Ground-based sensors would detect that a devastating blow had been struck and a counterattack would be launched.
Read more ....Related Article: Inside the Apocalyptic Soviet Doomsday Machine -- Wired News
My Comment: One thing that I am always trying to do in this blog is to find additional articles/opinions that relate to the main story. But for this story .... I have found nothing. Kudos to the Danger Room/Wired for getting some basic information that gives us a general outline of this "Doomsday Machine" story.
Feathered Fossils Prove Birds Evolved From Dinosaurs, Say Chinese Scientists
the fossils of which have been found in China
From The Daily Mail:
A new species of feathered dinosaurs provides hard evidence the prehistoric creatures evolved into birds, a group of Chinese scientists has claimed.
The fossils represent five different species from two different rock sequences in north-eastern China and all have feathers or feather-like structures.
The new finds are 'indisputably' older than archaeopteryx, the oldest known bird, which scientists claim provides exceptional evidence that birds evolved from dinosaurs.
Read more ....
Asteroid Attack: Putting Earth's Defences To The Test
From New Scientist:
T LOOKS inconsequential enough, the faint little spot moving leisurely across the sky. The mountain-top telescope that just detected it is taking it very seriously, though. It is an asteroid, one never seen before. Rapid-survey telescopes discover thousands of asteroids every year, but there's something very particular about this one. The telescope's software decides to wake several human astronomers with a text message they hoped they would never receive. The asteroid is on a collision course with Earth. It is the size of a skyscraper and it's big enough to raze a city to the ground. Oh, and it will be here in three days.
Read more ....
Making Realistic Skin for Robots
From Technology Review:
Without realistic synthetic skin, robots will never be entirely accepted socially. Yet even measuring what it means for skin to be humanlike is proving tough.
When it comes to building realistic robots, it's not just the way they look that's important. It's also the way they feel to the touch, says John-John Cabibihan at the National University of Singapore and pals. They argue that if robots are ever to be accepted socially, they will need to have humanlike skin so that actions such as handshakes can be made as realistic as possible.
Read more ....
Future Is TV-Shaped, Says Intel
The world's biggest chip maker predicts that by 2015 there will be 12 billion devices capable of connecting to 500 billion hours of TV and video content.
Intel said its vision of TV everywhere will be more personal, social, ubiquitous and informative.
"TV is out of the box and off the wall," Intel's chief technology officer Justin Rattner told BBC News.
"TV will remain at the centre of our lives and you will be able to watch what you want where you want.
Read more ....
Suspected Trojan war-era couple found
From ABC News (Australia):
Excavations in the ancient city of Troy in Turkey have found the remains of a man and a woman believed to have died in 1200 BC, at the time of the legendary Trojan war, says a German archaeologist.
Dr Ernst Pernicka, a University of Tubingen professor of archaeometry, who is leading excavations on the site in northwestern Turkey, says the bodies were found near a defence line within the city built in the late Bronze Age.
Read more ....
Superheavy Element 114 Confirmed: A Stepping Stone To The 'Island Of Stability'
From Science Daily:
ScienceDaily (Sep. 25, 2009) — Scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory have been able to confirm the production of the superheavy element 114, ten years after a group in Russia, at the Joint Institute for Nuclear Research in Dubna, first claimed to have made it. The search for 114 has long been a key part of the quest for nuclear science’s hoped-for Island of Stability.
Read more ....
The Truth About Lying
While American folklore tells us that George Washington never told a lie, the topic of lying on Capitol Hill, at work, or at home is big news.
For instance, President Barak Obama is charged with telling lies. A popular TV show, Lie to Me, conducts a poll that shows the average person lies 42 times a week. And the concept for a new movie, The Invention of Lying, is that no one is able to tell a lie.
Read more ....
Monarch Butterflies Navigate With Sun-Sensing Antennae
A new experiment has shed light on how the monarch butterfly executes its impressive 2,000-mile migration every fall, and all it took was a lick of paint.
Researchers already knew that the butterflies use the sun to guide them to the exact same wintering spot in central Mexico. But because the sun is a moving target, changing position throughout the day, biologists have long speculated that in addition to having a “sun compass” in their brains, butterflies must use some kind of 24-hour clock to guide their migration [Wired.com]. In a new study, published in Science, researchers determined that the butterflies have a second circadian clock in their antennae, which sense light.
Read more ....
NASA/Ames-Controlled Moon Mission Will Add To New Discovery Of Water
A probe controlled from Ames Research Center that will hit the moon in two weeks may help unlock a major new scientific riddle, following NASA's stunning announcement Wednesday that the lunar surface is laced with water.
LCROSS (Lunar Crater Observation and Sensing Satellite), a mission controlled from Moffett Field in Mountain View, is scheduled to smash into a crater near the moon's south pole in the early hours of Oct. 9. Scientists will analyze the resulting debris plume for signs of large amounts of ice that may have persisted for eons in the extreme cold of perpetually shadowed craters.
The LCROSS mission had been about human exploration, trying to answer the question of whether there is enough ice on the moon to aid human exploration. The components of water — hydrogen and oxygen — could be used for life support or rocket fuel, if and when NASA returns astronauts to the moon.
Read more ....
How to Get Your Gadgets Off The Grid
From Popular Mechanics:
PM's October issue is all about how to survive disasters, including tales of off-the-grid homesteaders and stories of men who showed remarkable self-reliance in the face of hurricanes, blizzards and tornadoes. But surviving the aftermath of a major disaster without any electricity sounds pretty boring to PM senior technology editor Glenn Derene—what would he do without his LCD TV, wii, Internet access or power tools? In this “electric cold-beer gadget test,” Derene shows that with a small wind turbine, generator, solar charging kit and two very powerful batteries, you won’t have to abandon your gadgets (or beer fridge) after an emergency.
Read more ....
India Successfully Launches Seven Satellites With a Single Rocket
From Popular Science:
It’s been a busy day for India’s space agency. Underscoring the world’s largest democracy’s desire to become a serious player in the space business, the Indian Space Research Organisation launched seven satellites today, six of which belong to foreign nations.
India’s satellite, Oceansat-2, will enhance the ocean monitoring capabilities of the original Oceansat, which launched in 1999. Four of the other six satellites were German, while one was Turkish and one Swedish. Each of those carries a university-funded payload designed to conduct research on various new technologies.
Read more ....
Russia Hopes U.S. to Extend Shuttle Operations
From ABC News:
MOSCOW (Reuters) - Russia hopes the United States will extend the deadline to retire its space shuttles beyond 2011 and has heard unofficially it is possible, the head of Russia's space agency was quoted as saying on Friday.
The U.S. space agency NASA plans six more missions by its fleet of aging space shuttles by late next year or early 2011 after the construction of the $100 billion International Space Station (ISS) is completed. The shuttles will then be retired.
Read more ....
The Field Of Gold: How Jobless Treasure Hunter Unearthed Greatest Ever Haul Of Saxon Artefacts With £2.50 Metal Detector
From The Daily Mail:
It will revolutionise our understanding of the Dark Ages, bring delight to millions and make two men very rich indeed.
Archaeologists yesterday unveiled the largest and most valuable hoard of Saxon gold in history – 1,500 pieces of treasure unearthed from a farmer’s field by a man with a metal detector.
The haul includes beautiful gold sword hilts, jewels from Sri Lanka, exquisitely carved helmet decorations and early Christian crosses.
Read more ....
The World's Best Impact Craters
From The New Scientist:
Approximately 150 impact craters are known on Earth, but most are severely eroded or hidden beneath tonnes of rock. Still, a few spectacular examples are visible with aerial photography, satellites or instruments that can peek beneath the surface.
Read more ....
HIV Vaccine 'Reduces Infection'
An experimental HIV vaccine has for the first time cut the risk of infection, researchers say.
The vaccine - a combination of two earlier experimental vaccines - was given to 16,000 people in Thailand, in the largest ever such vaccine trial.
Researchers found that it reduced by nearly a third the risk of contracting HIV, the virus that leads to Aids.
It has been hailed as a significant, scientific breakthrough, but a global vaccine is still some way off.
Read more ....
Thursday, September 24, 2009
Mutations Make Evolution Irreversible: By Resurrecting Ancient Proteins, Researchers Find That Evolution Can Only Go Forward
From Science Daily:
A University of Oregon research team has found that evolution can never go backwards, because the paths to the genes once present in our ancestors are forever blocked. The findings -- the result of the first rigorous study of reverse evolution at the molecular level -- appear in the Sept. 24 issue of Nature.
Read more ....
Full Moon Does Not Affect Surgery Outcomes
From Live Science:
While a full moon can tug on ocean tides and make for a romantic setting, scientists have found no reliable evidence that it triggers suicides or hospital admissions, or facilitates conception, the transformation of werewolves or any of a host of other phenomena often blamed on it.
Evidence is mounting, however, for things on which the moon has no impact.
Read more ....
Roaches Hold Their Breath To Stay Alive
(Source: Philip Matthews )
From ABC News (Australia):
Australian scientists have discovered another reason why cockroaches might well inherit the earth after humans are long gone.
Animal physiologist Dr Craig White of the University of Queensland in Brisbane and colleagues report their findings in the Journal of Experimental Biology.
"Several decades ago, scientists discovered that some insects hold their breath," says White.
"But it's not been clear why they do this."
Read more ....
NASA Finds Water Ice In Mars Craters
From The Christian Science Monitor:
NASA's Mars Reconnaisance Orbiter spotted ice just below the surface that was exposed by fresh meteor crashes, not far from where the Viking 2 Lander looked in 1976.
NASA’s Mars Reconnaissance Orbiter has found water ice much closer to the planet’s equator than scientists believed possible.
And it’s far purer than they expected, suggesting that in the recent past, the planet’s climate was far more humid than models of Mars’s climate history suggested.
Read more ....
The Australian Dust Storm As Seen From Space – Dry lake Eyre Not Global Warming?
From Watts Up With That?
There’s been quite a bit of buzz about the dust storm in Australia that hit Queensland, New South Wales, and NSW city Sydney on September 23rd. Pictures like the ones below have been all over the web.
But it is the photos taken from space that are the most interesting I think. NASA’s Earth Observatory captured a truly amazing photo that shows the dust storm front as it swept across the continent and headed out to sea over eastern Australia where the borders of Queensland and NSW meet.
Read more ....
Quantum Chip Helps Crack Code
From IEEE Spectrum:
Experimental chip does part of code-cracking quantum algorithm.
3 September 2009—Modern cryptography relies on the extreme difficulty computers have in factoring huge numbers, but an algorithm that works only on a quantum computer finds factors easily. Today in Science, researchers at the University of Bristol, in England, report the first factoring using this method—called Shor’s algorithm—on a chip-scale quantum computer, bringing the field a tiny step closer to realizing practical quantum computation and code cracking.
Read more ....
Update: Quantum Computer Factors the Number 15 -- Scheneider Security
Guinness Facts: In Black And White
From The Telegraph:
As millions of people toast the birth of the world's most famous stout, members of the Guinness family will remember how a blessed inheritance to their forefather Arthur changed their fortunes.
– Arthur Guinness set up his first brewery in Leixlip, Co Kildare, in 1756 after he was left a £100 inheritance by his godfather, Archbishop Arthur Price.
– He later handed the business to his brother and, in 1759, signed a 9,000 year lease on the St James's Gate Brewery for an annual fee of £45.
Read more ....
iRex Announces e-Reader with Barnes & Noble Catalog, Verizon 3G
From Popular Science:
With a larger screen and 400,000 more titles, iRex's DR800SG forces a standoff against the Kindle and the Sony Reader.
Barnes and Noble first tipped their hand in July, when they announed their new e-book store and its 700,000 titles would be made available on the iPhone and BlackBerry platforms. Then in August, the bookseller announced a partnership with e-reader maker iRex, in addition to love for Plastic Logic and their devices. And today (drumroll, please) the company officially announced the iRex DR800SG reader, the first e-book reader with access to the Barnes and Noble catalog.
Read more ....
US Dirty Bomb Attack Would Bring Clean-Up Chaos
A dirty bomb attack on the US would find the country ill-prepared to clean up the resulting radioactive mess, a government watchdog has warned – and hasty attempts at cleaning up could make things worse.
Building a true nuclear bomb requires expert knowledge and possession of plutonium or enriched uranium, which governments keep under tight security. But more widely available radioactive materials, intended for applications such as medical imaging, could be used to construct a "dirty bomb" detonated a conventional explosives such as dynamite.
Read more ....
Mysterious Ruins May Help Explain Mayan Collapse
From USA Today:
Ringing two abandoned pyramids are nine palaces "frozen in time" that may help unravel the mystery of the ancient Maya, reports an archaeological team.
Hidden in the hilly jungle, the ancient site of Kiuic (KIE-yuk) was one of dozens of ancient Maya centers abandoned in the Puuc region of Mexico's Yucatan about 10 centuries ago. The latest discoveries from the site may capture the moment of departure.
Read more ....
Voters choose 'Embracing The Hope' Setting For Famed Diamond
From The L.A. Times:
Last month we mentioned that, as a PR stunt for a Smithsonian Channel documentary, you had a chance to vote on which of three Harry Winston settings the famous Hope Diamond should temporarily reside. And, based on the number of comments All The Rage received (and we weren't even the ones tallying the votes), folks had some pretty strong opinions on the topic -- though most of you said you would prefer it remain in its traditional setting (to which it will return by the end of next year).
Read more ....
Genetic Discovery Could Break Wine Industry Bottleneck, Accelerate Grapevine Breeding
One of the best known episodes in the 8000-year history of grapevine cultivation led to biological changes that have not been well understood – until now. Through biomolecular detective work, German researchers have uncovered new details about the heredity of Vitis varieties in cultivation today. In the process, they have opened the way to more meaningful classification, accelerated breeding, and more accurate evaluation of the results, potentially breaking a bottleneck in the progress of the wine industry.
Read more ....
What Seniors Need To Know About The Flu
Flu season in the northern hemisphere can range from as early as November to as late as May. The peak month usually is February.
However, this coming season is expected to be unpredictable because of the emergence of the H1N1 influenza virus or swine flu. The H1N1 has caused the first global outbreak — pandemic — of influenza in more than four decades.
Read more ....
Water Found On The Moon
A stream of charged hydrogen ions carried from the sun by the solar wind. One possible scenario to explain the new finding of water on the lunar surface is that during the daytime, when the moon is exposed to the solar wind, hydrogen ions liberate oxygen from lunar minerals to form OH and H2O, which are then weakly held to the surface. At high temperatures (red-yellow) more molecules are released than adsorbed. University of Maryland/F. Merlin/McREL
From Discovery News:
Shattering a long-held belief that Earth's moon is a dead and dry world, a trio of spacecraft uncovered clear evidence of water and hydrogen-oxygen molecules throughout the lunar surface.
"There's no question that there is OH [hydroxyl, which is made up of one hydrogen atom and one oxygen atom] and H2O on the moon," University of Maryland senior research scientist Jessica Sunshine told Discovery News.
Read more ....
The Coming Ebook Reader Flood
(Screen shot from YouTube)
From Christian Science Monitor:
The Amazon Kindle ignited an ebook reader industry and created many rivals for itself.
“Kindle” indeed.
Amazon’s popular Kindle ebook reader has sparked some fiery competition. Several companies recently announced plans to produce their own ereader-like device, and signs point to more on the horizon.
Read more ....
Michael Faraday Voted Britain's Greatest Inventor
From The Telegraph:
Michael Faraday, the scientist whose discoveries led to the development of the electric motor, has been hailed as the greatest inventor in British history, a survey revealed today.
Faraday, who is credited with the harnessing of electric power, won a quarter of the vote in the poll of more than 1,200 people.
He was followed by Isambard Kingdom Brunel (13%), who designed the first propeller-driven steamship, and William Caxton (9%) who introduced the printing press to England.
Read more ....
India’s Lunar Mission Finds Evidence Of Water On The Moon
From The Independent:
Dreams of establishing a manned Moon base could become reality within two decades after India’s first lunar mission found evidence of large quantities of water on its surface.
Data from Chandrayaan-1 also suggests that water is still being formed on the Moon. Scientists said the breakthrough — to be announced by Nasa at a press conference today — would change the face of lunar exploration.
Read more ....
Satellite To Begin Gravity Quest
From The BBC:
A European spacecraft will begin its quest this week to make the most detailed global map of the Earth's gravity field.
The arrow-shaped Goce satellite can sense tiny variations in the planet's tug as it sweeps around the world at the very low altitude of just 255km.
The map will help scientists understand better how the oceans move.
It should also give them a universal reference to compare heights anywhere across the globe.
Read more ....
Wasted Space: U.S. Military Looking For Ideas On How To Curb The Threat Of Orbiting Junk
From Scientific American:
DARPA is soliciting pitches on how best to remove orbital debris.
Gazing up into the sky on a clear night, the heavens can appear as pristine as a mountain stream. But in truth, at least in Earth's vicinity, the trash factor in space may be more akin to what is found in New York City's East River. The region known as low Earth orbit (extending from 160 to 2,000 kilometers above Earth's surface), which is where many satellites spend their lives and "afterlives," has a litter problem caused by decades of neglect, and it's one that currently lacks an expedient solution.
Read more ....
Drinking Alcohol May Make Head Injuries Less Harmful
From Popular Science:
Patients with alcohol in their blood are less likely to die from head injuries, according to a new study in Archives of Surgery, a JAMA/Archives journal.
The researchers found that the patients who tested positive for alcohol were less likely to die than patients who had no alcohol in their bloodstream. They were also generally younger and had less severe injuries. But patients who had drunk alcohol did suffer more medical complications during their stay in the hospital.
Read more ....
Asteroid Attack: Putting Earth's Defences To The Test
From The New Scientist:
IT LOOKS inconsequential enough, the faint little spot moving leisurely across the sky. The mountain-top telescope that just detected it is taking it very seriously, though. It is an asteroid, one never seen before. Rapid-survey telescopes discover thousands of asteroids every year, but there's something very particular about this one. The telescope's software decides to wake several human astronomers with a text message they hoped they would never receive. The asteroid is on a collision course with Earth. It is the size of a skyscraper and it's big enough to raze a city to the ground. Oh, and it will be here in three days.
Read more ....