Photo: Prince Charles derided nanoparticles as 'grey goo' food
From The Daily Mail:
Britain is on the brink of a massive expansion in foods containing controversial 'grey goo' nanoparticles, according to the former head of the Food Standards Agency.
Low-calorie chocolate and beer that doesn't go flat could be on sale within just five years, Lord Krebs said last night.
However, he and other peers believe there will be no requirement for the hi-tech products to be labelled as containing nanoparticles - microscopic compounds that can worm their way into the brain, liver and kidneys with unknown consequences.
Read more ....
A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Saturday, January 9, 2010
You Won't Find Consciousness In The Brain
Consciousness in action? It is tempting to think that's what is going on - but wrong
(Image: Hans Neleman/Getty)
(Image: Hans Neleman/Getty)
From New Scientist:
MOST neuroscientists, philosophers of the mind and science journalists feel the time is near when we will be able to explain the mystery of human consciousness in terms of the activity of the brain. There is, however, a vocal minority of neurosceptics who contest this orthodoxy. Among them are those who focus on claims neuroscience makes about the preciseness of correlations between indirectly observed neural activity and different mental functions, states or experiences.
Read more ....
Hominids Went Out of Africa On Rafts
From Wired Science:
ANAHEIM, Calif. — Human ancestors that left Africa hundreds of thousands of years ago to see the rest of the world were no landlubbers. Stone hand axes unearthed on the Mediterranean island of Crete indicate that an ancient Homo species — perhaps Homo erectus — had used rafts or other seagoing vessels to cross from northern Africa to Europe via at least some of the larger islands in between, says archaeologist Thomas Strasser of Providence College in Rhode Island.
Read more ....
'Wildlife In Crisis' In Frozen UK
From The BBC:
Britain's wildlife is being pushed to "the brink of a crisis" as sub-zero temperatures continue to grip the nation, according to conservationists.
The Royal Society for the Protection of Birds (RSPB) is organising emergency feeding of several threatened species, including bitterns and cirl buntings.
The RSPB is also asking people to feed garden birds, which are struggling to find food in the freezing weather.
The harsh winter could hit bird numbers "for many years to come", they warn.
Read more ....
Britain's wildlife is being pushed to "the brink of a crisis" as sub-zero temperatures continue to grip the nation, according to conservationists.
The Royal Society for the Protection of Birds (RSPB) is organising emergency feeding of several threatened species, including bitterns and cirl buntings.
The RSPB is also asking people to feed garden birds, which are struggling to find food in the freezing weather.
The harsh winter could hit bird numbers "for many years to come", they warn.
Read more ....
Friday, January 8, 2010
Warmer Climate Could Stifle Carbon Uptake By Trees, Study Finds
A surprising new CU-Boulder study indicates subalpine forests in the West will soak up less carbon dioxide as the climate warms and the growing seasons lengthen. (Credit: Image courtesy Steve Miller, CIRES)
From Science Daily:
Science Daily (Jan. 8, 2010) — Contrary to conventional belief, as the climate warms and growing seasons lengthen subalpine forests are likely to soak up less carbon dioxide, according to a new University of Colorado at Boulder study.
As a result, more of the greenhouse gas will be left to concentrate in the atmosphere.
Read more ....
As Elvis Turns 75, Celebrity Worship Alive And Well
From Live Science:
If Elvis were alive, he'd be 75 on Friday. While his musical style and gyrations may have been unique, Elvis Presley's stardom and swooning fans can be explained by simple psychology, trends in technology and pop culture, and a look at our ancestors, all of which reveals why celebrity worship is on the rise.
"The Elvis phenomenon is only a case study of a wider psychological phenomenon," said James Houran, a clinical psychologist and president of 20/20 Skills, a human resources company.
Read more ....
If Elvis were alive, he'd be 75 on Friday. While his musical style and gyrations may have been unique, Elvis Presley's stardom and swooning fans can be explained by simple psychology, trends in technology and pop culture, and a look at our ancestors, all of which reveals why celebrity worship is on the rise.
"The Elvis phenomenon is only a case study of a wider psychological phenomenon," said James Houran, a clinical psychologist and president of 20/20 Skills, a human resources company.
Read more ....
Why "Green" Wine Is Catching On
From CBS News:
California Wineries Try To Set An Example Of What's Possible With Existing Technologies.
(AP) John Conover was looking for the best place to grow the Napa Valley's famous cabernet sauvignon grapes. Turns out the same southwest-facing, sunny hillside that gives him great grapes also raises a mean crop of solar panels.
"We wanted to be as green as we can be," says Conover, a partner in the Cade winery, which is on track for Gold certification under the U.S. Green Building Council's LEED (Leadership in Energy and Environmental Design).
Green wine is catching on.
Read more ....
Got A New Computer? Install These Nine Programs Right Away
New computer? Feed it a healthy diet of powerful software.
Heather McKinnon/The Seattle Times/Newscom
Heather McKinnon/The Seattle Times/Newscom
From Christian Science Monitor:
’Tis the season for a new computer. Whether Santa sneaked a PC under the tree or you’ve decided to install Windows 7 onto an older machine, millions of Americans this month will be booting up a fresh start.
What better time to get your computer on a healthy diet of lean but powerful software and to throw out the bloated junk food that comes preinstalled on many machines? Here are some free programs that’ll help your new PC chug along for many winters to come.
(Disclaimer: While most of the Monitor’s software suggestions cover both PCs and Macs, Apple fans will need to sit this article out.)
Read more ....
Microsoft Unveil HP Slate Just Weeks Before Launch Of Apple Tablet
From The Daily Mail:
Microsoft and HP have unveiled a new touch-screen tablet computer they hope will overshadow a similar device that Apple is expected to launch this month.
To add insult to injury Microsoft CEO Steve Ballmer referred to the gadget as a 'slate.' Technology pundits think Apple will call their gadget 'iSlate' after filing for the trademark.
The 10inch HP tablet is a touch screen computer that runs Windows 7.
Read more ....
Robot Border Guards To Patrol Future Frontiers
From New Scientist:
A MIGRANT makes a furtive dash across an unwalled rural section of a national border, only to be confronted by a tracked robot that looks like a tiny combat tank - with a gimballed camera for an eye. As he passes the bug-eyed droid, it follows him and a border guard's voice booms from its loudspeaker. He has illegally entered the country, he is warned, and if he does not turn back he will be filmed and followed by the robot, or by an airborne drone, until guards apprehend him.
Read more ....
Crack New Scanner Looks For Bombs Inside Body Cavities
From The Danger Room:
The “underpants bomber” has renewed calls for new and more invasive security measures. Already, there’s a push to install scanners that show travelers’ naked bodies through clothing, using either millimeter wave or backscatter X-ray imaging. But even those scanners might not have caught the terrorist who nearly brought down Northwest flight 253.
Read more ....
Thieves Use Google Earth To Find And Plunder Wineries' Solar Panels
From Popular Science:
Google's "do no evil" motto fails to halt heartless bandits.
Hot on the heels of news about Google's new energy venture comes this sorrowful tale about renewable energy. NPR reports on enterprising thieves who used Google Earth to do evil, and specifically to find California wineries with solar panels for the taking.
Yes, even the criminal underworld has embraced clean tech in the 21st century. Many thieves have reportedly used trucks to simply crash winery gates and steal up to 70 panels at a time. Local sheriff deputies speculate that online tools such as Google Earth might make it particularly easy to locate possible targets -- more than 400 panels worth over $1,000 each were stolen from Napa Valley vineyards in 2009.
Read more ....
Coral Reefs Are Evolution Hotspot
From The BBC:
Coral reefs give rise to many more new species than other tropical marine habitats, according to a new study.
Scientists used fossil records stretching back 540 million years to work out the evolution rate at reefs.
They report in the journal Science that new species originate 50% faster in coral reefs than in other habitats.
The team says its findings show that the loss of these evolution hotspots could mean "losing an opportunity to create new species" in the future.
Read more ....
Greatest Finds Of The Year
From The Independent:
It’s been another fascinating and prolific 12 months in archaeology, with discoveries - ranging from a multi-million pound medieval gold hoard to a lost Roman city, a “missing link” in human evolution and a prehistoric erotic figurine - coming thick and fast from the four corners of the globe.
They’ve been made by all from hard-working heritage experts, after years of slaving at the archaeological coal-face, to fluky amateurs on their very first treasure hunt.
Read more ....
How Earth Survived Its Birth: New Simulation Reveals Planet Migration Prevents Plunge Into Sun
New simulations show that variations in temperature can lead to regions of outward and inward migration that safely trap planets on orbits around their sun. (Credit: iStockphoto/Kirill Putchenko)
From Live Science:
Science Daily (Jan. 8, 2010) — For the last 20 years, the best models of planet formation -- or how planets grow from dust in a gas disk -- have contradicted the very existence of Earth. These models assumed locally constant temperatures within a disk, and the planets plunge into the Sun. Now, new simulations from researchers at the American Museum of Natural History and the University of Cambridge show that variations in temperature can lead to regions of outward and inward migration that safely trap planets on orbits.
Read more .....
Polar Bears Forced To Land And Water
Polar bears depend on sea ice for hunting, breeding and denning. The bears wait for seals to pop up through breathing holes in the ice, but since the ice is melting earlier and earlier in the year, polar bears are shifting there habitat to land and water, and may be missing out on hunting opportunities. Credit: USGS
From Live Science:
As Arctic sea ice melts, polar bears are changing their habitat, shifting from their preferred ice hunting grounds to land and open water, according to a new long-term study.
The findings have implications for people as well as polar bears, since the shift makes it more likely that humans will encounter these large animals on land, the researchers say.
Read more ....
Dark Roasted Blend: Weird & Wonderful Things in 2009
From The Dark Roasted Blend:
Promoting "sense of wonder" and intense exploration of our world and beyond, shamelessly cynicism- and nihilism- free, "Dark Roasted Blend" is happy to serve our readers since 2006. As a sort of overview, but mostly trying to highlight the themes and articles of 2009 that you might have missed, here is a roundup of the most popular and interesting posts on DRB (arranged by months):
Read more ....
Promoting "sense of wonder" and intense exploration of our world and beyond, shamelessly cynicism- and nihilism- free, "Dark Roasted Blend" is happy to serve our readers since 2006. As a sort of overview, but mostly trying to highlight the themes and articles of 2009 that you might have missed, here is a roundup of the most popular and interesting posts on DRB (arranged by months):
Read more ....
Top 10 Places You Can’t Go
RAF Menwith Hill is a British military base with connections to the global ECHELON spy network. The site contains an extensive satellite ground station and is a communications intercept and missile warning site and has been described as the largest electronic monitoring station in the world. The site acts as a ground station for a number of satellites operated by the US National Reconnaissance Office, on behalf of the US National Security Agency, with antennae contained in a large number of highly distinctive white radomes, and is alleged to be an element of the ECHELON system. ECHELON was reportedly created to monitor the military and diplomatic communications of the Soviet Union and its Eastern Bloc allies during the Cold War in the early 1960s, but since the end of the Cold War it is believed to search also for hints of terrorist plots, drug dealers’ plans, and political and diplomatic intelligence. It has also been involved in reports of commercial espionage and is believed to filter all telephone and radio communications in the nations which host it – an extreme violation of privacy.
From List Verse:
The world is full of secret and exclusive places that we either don’t know about, or simply couldn’t visit if we wanted to. This list takes a look at ten of the most significant places around the world that are closed to the general public or are virtually impossible for the general public to visit.
Read more ....
100 Quotes Every Geek Should Know
From Geekdad:
One thing that every geek can do is quote their favorite geek-culture media, whether it’s movies, books, television, theater or music. The GeekDads have tried to compile a list of such quotes for your enjoyment. This list is certainly not definitive. Indeed, it’s only the beginning! Feel free to add your own (clean) ones in the comments below.
Read more ....
Aboriginal Folklore Leads To Meteorite Crater
Researchers are using Aboriginal dreaming stories and Google Maps to
find new meteorite impact craters. Credit: Google Maps
find new meteorite impact craters. Credit: Google Maps
From Cosmos:
SYDNEY: An Australian Aboriginal 'Dreaming' story has helped experts uncover a meteorite impact crater in the outback of the Northern Territory.
Duane Hamacher, an astrophysicist studying Aboriginal astronomy at Sydney's Macquarie University, used Google Maps to search for the signs of impact craters in areas related to Aboriginal stories of stars or stones falling from the sky.
Read more ....
Samsung 9000 Series 3-D TV Is No Thicker Than a Pencil
From Popular Science:
Samsung is going whole hog into 3-D with their newly announced TV lineup, but at the top is the 9000 series: an LED-backlit panel that's just 0.3 inches thin. And on its remote. a color touchscreen that can carry broadcast TV while you watch a Blu-ray disc.
Read more ....
China Threatens To Slam Brakes On Price Of Lead
E-bikes were a feature of the Beijing Olympic Games last year, but reclassifying some of them as motorcycles will have an impact far beyond sales figures
From Times Online:
After a surge of more than 125 per cent, the price of lead ends the year in limbo — its future at the mercy of Chinese bureaucracy, the stroke of a pen and the legal status of 100 million electric bicycles.
The cycles in question, known as “e-bikes”, are battery-enhanced machines that are the darlings of the modern, urban Chinese. More than 20 million were sold this year, putting a vast army of commuters, unable to afford cars or motorcycles — and without licences — on the roads at a sedate maximum speed of 12 km/h (7½ mph).
Read more ....
Whistleblower Web Site Goes Dark, Seeks Funding
From FOX News:
A Web site that for years has let anonymous whistleblowers break stories of corruption and government malfeasance has gone dark and is expected to remain offline until it finds funds to support its operations and fend off lawsuits.
A Web site that for years has let anonymous whistleblowers break stories of corruption and government malfeasance has gone dark and is expected to remain offline until it finds funds to support its operations and fend off lawsuits.
Read more ....
A Web site that for years has let anonymous whistleblowers break stories of corruption and government malfeasance has gone dark and is expected to remain offline until it finds funds to support its operations and fend off lawsuits.
A Web site that for years has let anonymous whistleblowers break stories of corruption and government malfeasance has gone dark and is expected to remain offline until it finds funds to support its operations and fend off lawsuits.
Read more ....
Hubble Telescope Captures Earliest Images Of Universe - When It Was Just A 'Baby' At 600 Million Years
Deep space time: the Hubble picture shows the earliest ever seen galaxies which are circled in the boxes in the inset images on the left
From The Daily Mail:
The Hubble telescope has captured the earliest image yet of the universe - just 600 million years after the Big Bang.
It is the most complete picture taken in near-infrared light of the early universe, showing the first infant star clusters.
To give some perspective, the light left these galaxies 8billion years before our own Sun and Earth had even formed.
Scientists released the 'baby pictures' at a meeting of the American Astronomical Society.
Read more ....
Thursday, January 7, 2010
First Earth-Like Planet Spotted Outside Solar System Likely A Volcanic Wasteland
How similar is exoplanet CoRoT-7b to Earth? The newly discovered extra-solar planet (depicted in the above artist's illustration) is the closest physical match yet, with a mass about five Earths and a radius of about 1.7 Earths. Also, the home star to CoRoT-7b, although 500 light years distant, is very similar to our Sun. Unfortunately, the similarities likely end there, as CoRoT-7b orbits its home star well inside the orbit of Mercury, making its year last only 20 hours, and making its peak temperature much hotter than humans might find comfortable. (Credit: ESO/L. Calcada)
From Science Daily:
Science Daily (Jan. 7, 2010) — When scientists confirmed in October that they had detected the first rocky planet outside our solar system, it advanced the longtime quest to find an Earth-like planet hospitable to life.
Rocky planets -- Earth, Mercury, Venus and Mars -- make up half the planets in our solar system. Rocky planets are considered better environments to support life than planets that are mainly gaseous, like the other half of the planets in our system: Jupiter, Saturn, Uranus and Neptune.
Read more ....
Vampires Among Us: From Bats To Psychics
From Live Science:
The new film "Daybreakers," which opens Friday, is set in 2019, after a global virus outbreak has transformed most of the world's population into vampires. This is not good news for the small remaining population of humans, who become the sole source of blood. Vampires are of course very popular in books and on the silver screen, especially recently. But are they real?
The answer depends on how literally you define "vampire."
Read more ....
What An Anti-Climax: G-Spot Is A Myth
While 56% of women overall claimed to have a G-spot,
they tended to be younger and more sexually active.
they tended to be younger and more sexually active.
From Times Online:
A sexual quest that has for years baffled millions of women — and men — may have been in vain. A study by British scientists has found that the mysterious G-spot, the sexual pleasure zone said to be possessed by some women but denied to others, may not exist at all.
The scientists at King’s College London who carried out the study claim there is no evidence for the existence of the G-spot — supposedly a cluster of internal nerve endings — outside the imagination of women influenced by magazines and sex therapists. They reached their conclusions after a survey of more than 1,800 British women.
Read more ....
The Rise Of Robodoc
The Acrobot Robot, which helps orthopaedic surgeons
to carry out computer navigated partial knee replacements
to carry out computer navigated partial knee replacements
From The Independent:
Many operations are becoming less invasive and more efficient due to the growth of cyber-surgery. Nina Lakhani on a British medical success story.
While surgeons are often criticised for their brusque bedside manner, few could accurately be described as robots. This is going to change as surgical consultations increasingly involve robotic systems to help diagnose, plan operations and reassure patients.
The development of robotic systems, both active and passive, is enabling surgeons to use keyhole techniques in hard-to-reach areas not previously thought possible. Britain is at the forefront of many advances. Collaborations between NHS surgeons, universities and private companies enable Britain to develop robotics more quickly and cheaply than North American and European counterparts.
Read more ....
Labels:
future medicine,
robot applications
Using A Mobile Phone May Improve Memory And Stave Off Alzheimer's Disease
From The Telegraph:
Talking on a mobile telephone can improve memory and protect the mind from Alzheimer's disease, according to new research.
Tests suggested that exposure to radiation from the devices had a beneficial effect on the mind and could even reverse the effects of Alzheimer's.
The surprise findings contradict some previous studies that have suggested mobiles can cause Alzheimer's and brain cancer.
Read more ....
Solar System May Be More Compact Than Thought
A cloud of comets surrounds the main disc of the solar system - new research suggests the cloud may be more compact than previously thought (Illustration: T Pyle/SSC/JPL-Caltech/NASA)
From The New Scientist:
The solar system may be significantly more compact than previously thought, according to a new computer simulation of the cloud of comets that enshrouds the solar system. The work suggests the cloud may not contain as much material as once suspected, which could resolve a long-standing problem in models of how the planets formed.
Read more ....
Galileo Space Navigation System To Be Ready In 2014
Photo: Use of basic Galileo services will be free,
while high-accuracy capabilities will be restricted to paying users
while high-accuracy capabilities will be restricted to paying users
From Deutsche Welle:
After much delay, the European Commission has awarded contracts for work to start on building the highly-anticipated Galileo space navigation system. The first 14 satellites will be built by a German company.
The European Commission announced on Thursday that the long-delayed Galileo project, the European alternative to the American GPS satellite navigation system, will begin operation in 2014.
The Commission has awarded the German company OHB System AG a 566 million euro (813 million dollar) contract to build the first 14 satellites for the EU's new space-based navigation system.
Read more ....
Skiff E-Reader Has Some New Tricks
From Popular Mechanics:
LAS VEGAS—The barrage of new products from CES includes a number of e-Ink devices, all lining up to dislodge the Kindle from its perch at the top of the market. Among the double fistful of readers for sale in 2010 will be the Skiff Reader, a sleek 11.5-inch device that has received a healthy share of buzz in the past few days. We've refrained from writing about Skiff until now because it's backed by Hearst, Popular Mechanics' own parent company, and because over the past year we've been sharing ideas on the device with the company's development team. (As you can see from the photo, we've created sample content for Skiff that will be shown this week in Las Vegas.)
Read more ....
Tripping The Light Fantastic: 66 Black Holes Found 'Dancing' The Galactic Night Away
From The Daily Mail:
It is the ultimate dance routine but get too close and it may be your last.
A team of astronomers have discovered 33 pairs of 'waltzing' black holes in distant galaxies which will eventually combine to form one.
Nearly every galaxy has a central super-massive black hole with a mass up to a billion times the mass of the Sun and galaxies often collide.
Read more ....
97 Reasons To Quit Smoking
Image: (FOTOLIA/ISTOCKPHOTO)
From Health.com:
1. You won't have to pay more and more and more and more each year.
Yup, taxes will almost certainly continue to go up. New Jersey, Vermont, and Connecticut are among the states leaning harder on smokers for revenue, but even some tobacco-growing states are beginning to milk the coffin-nail cash cow. Lawmakers' reasoning: There is evidence that price increases cause smokers to reduce consumption. And the medical costs of smoking are astronomical—a huge burden to the states.
2. You'll inhale fewer germs.
New research suggests cigarettes are crawling with germs, which can be inhaled along with the smoke. It’s not clear if the germs can make you sick, but the yuck factor is undeniable.
Read more ....
From Health.com:
1. You won't have to pay more and more and more and more each year.
Yup, taxes will almost certainly continue to go up. New Jersey, Vermont, and Connecticut are among the states leaning harder on smokers for revenue, but even some tobacco-growing states are beginning to milk the coffin-nail cash cow. Lawmakers' reasoning: There is evidence that price increases cause smokers to reduce consumption. And the medical costs of smoking are astronomical—a huge burden to the states.
2. You'll inhale fewer germs.
New research suggests cigarettes are crawling with germs, which can be inhaled along with the smoke. It’s not clear if the germs can make you sick, but the yuck factor is undeniable.
Read more ....
Physicists Beginning To See Data From The Large Hadron Collider
Last month the ATLAS experiment at the Large Hadron Collider began recording proton-proton collisions at a record energy of 2.36 trillion electron volts. Image courtesy of the ATLAS experiment. (Credit: Image courtesy of Iowa State University)
From Science Daily:
Science Daily (Jan. 7, 2010) — Three Iowa State University physicists who took winter trips to the Large Hadron Collider for meetings and experimental work are starting to see real data from the planet's biggest science experiment.
Finally.
The multibillion-dollar collider made international news on Sept. 10, 2008, when it sent its first beam of protons around 17 miles of underground tunnel near Geneva, Switzerland. But breakdowns in the machine's high-current electrical connections forced a complete shutdown for more than a year of repairs and tests.
Read more ....
Can A Person Freeze To Death?
From Live Science:
Extremely cold weather has descended upon most of the nation this week, and this frigid air may have you feeling like you could "freeze to death." Paranoia aside, when temperatures dip, frostbite and other health risks are real concerns. And death strikes long before the body actually freezes.
Yet our bodies are pretty hardy, as we have two built-in mechanisms to protect us from the cold.
Read more ....
Free Flipper! Argues Scientist
Studies show how dolphins have distinct personalities, a strong sense of self and can think about the future. Photo: JASON HELLER / BARCROFT MEDIA
From The Telegraph:
Dolphins should be treated as “non-human persons” and merit special rights above other animals because they are so bright, scientists claim.
Researchers argue that it is morally unacceptable to keep such intelligent animals in captivity or to kill them for food.
Dolphins have long been recognised as among the most intelligent of animals but many researchers had placed them below chimps, which some studies have found can reach the intelligence levels of three-year-old children.
Read more ....
Landmark DNA Study Of 3,000 People To Unlock Mystery Of Type 2 Diabetes
From Times Online:
The genetic roots of type 2 diabetes are to be explored in unprecedented depth to help to find better ways to diagnose and treat a disease that affects more than 2 million people in Britain.
A £15 million study is to read the complete DNA of 3,000 people, more than ten times more than have so far had their genomes sequenced, The Times has learnt.
Read more ....
The World In 2020: Thrift, Hard Work – And No Smoking
From The Independent:
What will our lives be like a decade from now? In the second part of our series, Independent writers glimpse the future.
By 2020 the people of Britain had grown accustomed to the "nanny state" telling them what to do. Smoking had been totally unacceptable for several years, after the smoking ban had been extended to outdoor public spaces such as parks, beaches and playgrounds. There was even talk of banning smoking in blocks of flats.
Read more ....
One In Ten Stars 'Have Solar Systems Like Ours'
The findings were presented at the annual meeting of the
American Astronomical Society in Washington DC Photo: NASA
American Astronomical Society in Washington DC Photo: NASA
From The Telegraph:
One in ten stars in the universe may host solar systems like the Sun's family of planets, astronomers believe.
Potentially hundreds of millions of stars may have solar systems that could harbour life-supporting Earth-like planets.
Our solar system has far-flung gas-giant planets with small rocky worlds such as the Earth and Mars nearer the parent star.
Read more ....
Chilling Out In The Coldest Place on Earth
Just when you think it can't get any colder (Image: Michael Studinger/Lamont Doherty Earth Observatory/Columbia University)
From New Scientist:
VOSTOK Station in Antarctica currently holds the crown for the coldest place on the planet. It recorded -89.2 °C on 21 July 1983. But it could get even colder, with temperatures dropping to about -96 °C, if "perfect" cold-weather conditions prevail.
John Turner of the British Antarctic Survey and colleagues analysed the weather conditions that brought about the record chill and found it was caused by an unusual, near-stationary atmospheric vortex. "This isolated Vostok and prevented the waves of warm air that normally come up from the ocean," says Turner. After that big chill, the temperature bounced up by over 20 °C in one day (Journal of Geophysical Research - Atmospheres, DOI: 10.1029/2009JD012104).
Read more ....
The Top 4 Sites To Land On Mars And Their Biggest Mysteries
From Popular Mechanics:
The Spirit Rover is nearly history, stuck deep in sand, and while Opportunity travels on, it's not likely that it will travel much farther. Now, scientists are building the next rover to be sent to Mars. But before they fuel the rockets, researchers have to pick a spot to explore. Here are NASA's frontrunners.
Call it the Jet Propulsion Laboratory's version of the Final Four. Scientists at the Pasadena, Calif.–based NASA research center will decide within the next two years where to send the Mars Science Laboratory (MSL) rover after it launches in the fall of 2011. MSL's mission is to scour the Red Planet for environments that may once have harbored, or may still harbor, microbial organisms. Such an environment would have to contain the basic ingredients of life—including water, organic carbon and a source of energy to sustain the microbes' metabolism.
Read more ....
Nearby T Pyxidis Supernova Could Destroy Life On Earth
Too Close for Comfort T Pyxidis, a star on the verge of growing too massive and collapsing into a type Ia supernova, was discovered to be closer to Earth than previously thought – close enough to end life here when it finally explodes. NASA
From Popular Science:
Doomsdayers and 2012 blog-keepers, take note. Astronomers at this week's American Astronomical Society meeting revealed that a massive white dwarf star in the throes of multiple nova is much closer to our solar system than once thought. When it does finally collapse into a type Ia supernova -- okay, if it collapses into a type Ia supernova -- the resulting thermonuclear blast will destroy life on earth. Seriously.
Read more ....
NASA's Kepler Finds Its First Five Planets - An Odd Assortment
Kepler's first five exoplanets are compared to those in our
solar system in this illustration from NASA. NASA
solar system in this illustration from NASA. NASA
From Christian Science Monitor:
NASA's Kepler space telescope is just beginning its three-year mission to find Earth-like planets in habitable zones around stars. The first new planets it has found, announced Monday, include two so hot they would melt iron.
NASA's planet-hunting telescope Kepler has bagged its first quarry: five new planets Neptune's size and larger, including one with the density of Styrofoam, making it one of the lightest planets yet found.
In addition to the new planets, Kepler results suggest that the light output from two-thirds of some 43,000 sun-like stars in its field of view is virtually as stable as the sun's output.
Read more ....
Wednesday, January 6, 2010
'Ferropaper' Is New Technology For Small Motors, Robots
Purdue researchers have created a magnetic "ferropaper" that might be used to make low-cost "micromotors" for surgical instruments, tiny tweezers to study cells and miniature speakers. Babak Ziaie, a professor of electrical and computer engineering and biomedical engineering, holds a miniature birdlike shape made from the material. The wings move slowly, but the structure is not capable of flight. (Credit: Purdue University photo/Andrew Hancock)
From Science Daily:
Science Daily (Jan. 6, 2010) — Researchers at Purdue University have created a magnetic "ferropaper" that might be used to make low-cost "micromotors" for surgical instruments, tiny tweezers to study cells and miniature speakers.
The material is made by impregnating ordinary paper -- even newsprint -- with a mixture of mineral oil and "magnetic nanoparticles" of iron oxide. The nanoparticle-laden paper can then be moved using a magnetic field.
Read more ....
Mystery of World's Biggest Beasts Possibly Solved
The primitive whale Mammalodon colliveri might have sucked up prey from seafloor mud, suggesting the origin of today's giant filter-feeding whales. Credit: Brian Choo, Museum Victoria
From Live Science:
The origins of the largest animals in the world, the baleen whales, might be rooted in the mud, which they potentially sucked up like vacuum cleaners, analysis of a bizarre extinct dwarf whale now suggests.
The baleen whales include the largest animal to have ever lived, the blue whale. Instead of teeth, they use baleen to feed — plates with frayed edges in the upper jaw that filter seafood from the water.
Read more ....
Milky Way's Dark Matter 'Turned On Its Side'
From New Scientist:
The cloud of dark matter that is thought to surround the Milky Way may be shaped like a squashed beach ball. This halo of invisible matter also seems to sit at an unexpected angle – which could be a strike against a theory that challenges Einstein's account of gravity.
Read more ....
Intermediate Black Hole Implicated In Star's Death
From Discovery News:
Astronomers presenting at the American Astronomical Society (AAS) meeting in Washington D.C. on Jan. 4, have reported the detection of the emission generated by a black hole as it devoured a white dwarf star in the elliptical galaxy NGC 1399.
This may not appear to be a huge deal to begin with -- stars being eaten by supermassive black holes in the centers of galaxies have been detected before -- but it would appear that this particular white dwarf was ripped apart and then devoured by a mysterious "intermediate-mass" black hole.
Study Pinpoints Autism Clusters in Calif.
Image: (CBS/iStockphoto)
From CBS News:
More Cases Found in Areas where Parents are Better Educated and Near Autism Treatment Centers
(CBS) Researchers in California have identified 10 regions in the state where cases of autism are higher than in nearby regions.
The study finds that the areas, called clusters, are in places where parents have above average levels of education, or are also places located near large autism treatment facilities.
The research, conducted by scientists at UC Davis, showed that the clusters appear in highly populated areas of Southern California and the Bay Area.
Read more ....
From CBS News:
More Cases Found in Areas where Parents are Better Educated and Near Autism Treatment Centers
(CBS) Researchers in California have identified 10 regions in the state where cases of autism are higher than in nearby regions.
The study finds that the areas, called clusters, are in places where parents have above average levels of education, or are also places located near large autism treatment facilities.
The research, conducted by scientists at UC Davis, showed that the clusters appear in highly populated areas of Southern California and the Bay Area.
Read more ....
Two Killer Whale Types Found In UK Waters
From The BBC:
Scientists have revealed that there is not one but two types of killer whale living in UK waters.
Each differs in its appearance and diet, with males of one type being almost two metres longer than the other.
The killer whales could be at an early stage of becoming two separate species, the researchers say.
The international group of scientists has published its results in the journal Molecular Ecology.
Read more ....
Oil And Gas Drilling In Greenland To Begin This Summer
From Popular Mechanics:
When the 748-foot Stena Forth plows into the deep waters of Greenland’s Disko West zone next summer, the advanced drillship will be taking the first crack at what could be the world’s biggest untapped reservoir of oil and gas. The ship, built by Samsung in South Korea’s Geoje shipyard just over a year ago, can drill to 35,000 feet, in 10,000 feet of water.
Read more ....
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