Monday, October 20, 2008

Black And White TV Generation Have Monochrome Dreams

From The Telegraph/Science:

Do you dream in black and white? If so, the chances are you are over 55 and were brought up watching a monochrome television set.

New research suggests that the type of television you watched as a child has a profound effect on the colour of your dreams.

While almost all under 25s dream in colour, thousands of over 55s, all of whom were brought up with black and white sets, often dream in monchrome - even now.

The findings suggest that the moment when Dorothy passes out of monochrome Kansas and awakes in Technicolor Oz may have had more significance for our subconscious than we literally ever dreamed of.

Eva Murzyn, a psychology student at Dundee University who carried out the study, said: "It is a fascinating hypothesis.

Read more ....

The Passenger Jet That Just Missed Colliding With A UFO 22,000ft Above Kent

From Daily Mail:

As the captain of Flight AZ 284 began his descent into Heathrow, he saw something alarming overhead.

Shaped like a missile, the object suddenly veered across the airliner's path causing the pilot to shout 'Look out!' as he attempted to avert a mid-air collision 22,000ft above the Kent countryside.

Travelling at an estimated 120mph, it passed less than 1,000ft from the passenger jet before disappearing from radar screens, leaving the pilot and accident investigators baffled.

Secret documents released for the first time reveal that Ministry of Defence staff accept that an Unidentified Flying Object zooming above Lydd caused the nearmiss.

The incident took place at 7.58pm on April 21, 1991, and was investigated by the Civil Aviation Authority and military experts.

Having ruled out the possibility of it being a missile, weather balloon or space rocket, the MoD was forced to conclude that it was a genuine UFO and close the inquiry.

The unexplained close encounter is one of many recounted in military UFO documents released today by the National Archives.

The Alitalia aircraft was on a routine flight from Milan to Heathrow with 57 people on board when the ten-foot long object, which had no exhaust flame, was spotted by pilot Achille Zaghetti.

Read more ....

More Problems With Hubble

Hubble Telescope

From Science News:

Hubble’s resurrection is suspended while engineers examine two anomalies
Two anomalies onboard the orbiting Hubble Space Telescope, which stopped transmitting data on September 27, caused engineers to suspend re-activation of Hubble’s science equipment. Engineers encountered problems following an intricate maneuver to circumvent a piece of failed hardware. Hubble is currently orbiting Earth in a dormant “safe mode” while the malfunctions are assessed.

In an October 17 teleconference, NASA scientists said that it is too soon to know the details of the failures. “We are in the early stages of going through a mountain of data that has been downloaded,” said Art Whipple, manager of the Hubble Systems Management Office at NASA’s Goddard Space Flight Center in Greenbelt, Md., at the teleconference. “This is a marathon, not a sprint.”

These latest anomalies came at a critical time, during the team’s attempt on October 16 to wake up all of Hubble’s science equipment and restore the orbiting telescope to full science capabilities.

The late September failure in Hubble’s science data formatting unit halted all science data communications to Earth. Since then, Hubble has been orbiting Earth silently, performing only basic health and safety functions, with almost all of its science observations suspended.

Read more ....

Space Expectations

THE MIND OF WERNHER VON BRAUN: In the October 18, 1952, issue of Collier's, von Braun sketched out the 190-foot- (58-meter-) tall "orbit-to-orbit space ship," which he designed to transport people from a space station to lunar orbit.

From Scientific American:

German rocket physicist and astronautics engineer Wernher von Braun played a crucial role in developing the rocket technology, including the Saturn 5 , that put U.S. astronauts on the surface of the moon in 1969. Just 17 years earlier, when spaceflight was little more than a dream, von Braun worked for the U.S. Army building ballistic missiles. It was during this time that the future and first director of NASA's Marshall Space Flight Center in Huntsville, Ala., would share his vision of manned space exploration. A series of articles published in Collier's magazine in the early 1950s revealed many ideas that later became reality (including space stations, lunar missions and satellites) and some that never got off the ground (a rocket operated by three rhesus monkeys).

Von Braun's sketches for the magazine's illustrations are up for bid by U.K. auctioneers Bonhams Wednesday. The auction house, which expected the lot of 35 drawings and letters to fetch up to $25,000, was pleasantly surprised with the winning bid came in at $132,000.

Read more ....

Genetic-based Human Diseases Are An Ancient Evolutionary Legacy, Research Suggests

Artistic illustration of a phylostratigraphy.
(Credit: Irena Andreic, Ruđer Bošković Institute, Zagreb)

From Space Daily:

ScienceDaily (Oct. 19, 2008) — Tomislav Domazet-Lošo and Diethard Tautz from the Max Planck Institute for Evolutionary Biology in Plön, Germany, have systematically analysed the time of emergence for a large number of genes - genes which can also initiate diseases. Their studies show for the first time that the majority of these genes were already in existence at the origin of the first cells.

The search for further genes, particularly those which are involved in diseases caused by several genetic causes, is thus facilitated. Furthermore, the research results confirm that the basic interconnections are to be found in the function of genes - causing the onset of diseases - can also be found in model organisms (Molecular Biology and Evolution).

The Human Genome Project that deciphered the human genetic code, uncovered thousands of genes that, if mutated, are involved in human genetic diseases. The genomes of many other organisms were deciphered in parallel. This now allows the evolution of these disease associated genes to be systematically studied.

Read more ....

Monopoly Brings Out the Worst in People

From Live Science:

Last weekend we had some folks over to play Monopoly. There were four adults and three kids, and we all wanted some family fun.

It's always chancy playing board games with good friends because people with dice in their hands, even very nice, mild mannered people, often turn cutthroat.

With this group, it started as the parents set up the board and the kids ran around.

Half the parents, it seemed, wanted to make sure our fiscally innocent children were protected from unscrupulous players. "Let's let the kids win," said one mother.

But the other parents didn’t give a hoot about the kids. "It's their fault if they don't understand economics. Let's take them for all they've got," said one father.

Read more ....

Men's Reactions Peak At Age 39

From Live Science:

This explains everything.

Scientists asked 72 men, ranging in age from 23 to 80, to tap their index fingers as fast as they could for 10 seconds. The researchers also did brain scans to measure in each subject the amount of myelin — a fatty sheath of insulation that coats nerve axons and allows for signaling bursts in our brains.

Both the tapping speed and the amount of myelin was found to decline "with an accelerating trajectory" after age 39.

Study leader George Bartzokis, professor of psychiatry at UCLA, called the results "pretty striking" and said: "That may well be why, besides achy joints and arthritis, even the fittest athletes retire and all older people move slower than they did when they were younger."

The myelination of brain circuits was known to peak in middle age. Bartzokis and others have long argued that brain aging might be primarily related to the myelin breakdown.

Read more ....

Sunday, October 19, 2008

Could Solar Power Satellites Beam Down Gigawatts of Energy?

Image from NASA

From Treehugger:

How pie-in-the-sky is Ben Bova's space satellite scheme? Mr. Bova, the president emeritus of the National Space Society and a prolific science fiction author, penned a column in last Sunday's Washington Post calling on the next president to build an armada of solar power satellites (SPS) -- basically large accumulations of solar cells -- to help meet a substantial chunk of our energy needs. The idea of building orbiting solar systems in space is nothing new (see my posts about Japan's Space Solar Power Systems and India's space plans); the concept, as described by its creator, aerospace engineer Peter Glaser, would be a satellite in high orbit (where sunshine is always present) that would use microwave transmission to beam solar power to receiving stations on Earth.

The obvious benefit: a continuous 24-hour, 365-day supply of solar energy. Powered by solar energy itself, a single SPS could generate up to 10 gigawatts of power continually, according to Bova. If that's even remotely true, just imagine how much continuous power a group of these SPSs could provide.

Read more ....

Protective Shield Of The Sun Is Shrinking


From The Sydney Morning Herald:

LONDON: The protective bubble around the sun that helps to shield the Earth from harmful interstellar radiation is shrinking and getting weaker, NASA scientists have discovered.

New data from the Ulysses deep-space probe show that the heliosphere, the protective shield of energy that surrounds our solar system, has weakened by 25 per cent over the past decade and is now at it lowest level since the space race began 50 years ago.

Scientists, baffled at what could be causing the barrier to shrink in this way, were set to launch a mission overnight to study the heliosphere.

The Interstellar Boundary Explorer, or Ibex, will orbit 240,000 kilometres above the Earth and "listen" for the shock wave that forms as our solar system meets interstellar radiation.

Read more ....

The Final Frontier: An Essay By Stephen Hawkings

From Cosmos Magazine:

In the 1960s the space race created a fascination with science and great technological advances. To find alien life we need to take back up that mantle, says astrophysicist Stephen Hawking, and send people further into space.

Why should we go into space? What is that justification for spending all that effort and money on getting a few lumps of Moon rock? Aren't there better causes here on Earth?

In a way, the situation was like that in Europe before 1492. People might well have argued that it was a waste of money to send Columbus on a wild goose chase over an almost unimaginable distance. Yet, the discovery of the New World made a profound difference to the old one.

Spreading out into space will have an even greater effect; it will completely change the future of the human race and maybe determine whether we have any future at all.

It won't solve many of our immediate problems on Earth, but it will give us a new perspective on them and cause us to look both outwards and inwards. With luck it could unite us to face a common challenge.

Read more ....

Man's Oldest friend: Scientists Discover The Grandad O Modern Dogs... From 31,700 Years Ago

A Siberian husky, thought to most resemble the Paleolithic dogs of our forefathers
(Photo from Daily Mail)

From Daily Mail:

For hundreds of years they've been considered man's best friend, and now it seems dogs have been around longer than thought.

Scientists have discovered the oldest-ever remains of dogs dating back 31,700 years - that's 221,900 in dog years...

The remains push back the date for the earliest dog by 14,000 years, and suggest the forefathers of the modern canine were a lot stronger and a lot hungrier than next-door's Fido.

From studying the fossils, found at Goyet Cave in Belgium, the international team of scientists believe the animals subsisted on a diet of horse, musk ox and reindeer.

Lead author Mietje Germonpré, a paleontologist at the Royal Belgian Institute of Natural Sciences, said: 'In shape, the Paleolithic dogs most resemble the Siberian husky, but in size, however, they were somewhat larger, probably comparable to large shepherd dogs.

'The Paleolithic dogs had wider and shorter snouts and relatively wider brain cases than fossil and recent wolves.'

Read more ....

Friday, October 17, 2008

Colossal Black Holes Common In Early Universe, Spectacular Galactic Collision Suggests

Artist’s conception of the 4C60.07 system of colliding galaxies. The galaxy on the left has turned most of its gas into stars, and the black hole in its center is ejecting charged particles in the two immense jets shown. The galaxy on the right also has a black hole causing the galaxy’s central region to shine, but much of its light is hidden by surrounding gas and dust. Vast numbers of stars are forming out of the gas and dust, and some of the material is being pulled away from the galaxy. (Credit: David A. Hardy/UK ATC)

From Science Daily:

ScienceDaily (Oct. 16, 2008) — Astronomers think that many - perhaps all - galaxies in the universe contain massive black holes at their centers. New observations with the Submillimeter Array now suggest that such colossal black holes were common even 12 billion years ago, when the universe was only 1.7 billion years old and galaxies were just beginning to form.

The new conclusion comes from the discovery of two distant galaxies, both with black holes at their heart, which are involved in a spectacular collision.

4C60.07, the first of the galaxies to be discovered, came to astronomers' attention because of its bright radio emission. This radio signal is one telltale sign of a quasar - a rapidly spinning black hole that is feeding on its home galaxy.

When 4C60.07 was first studied, astronomers thought that hydrogen gas surrounding the black hole was undergoing a burst of star formation, forming stars at a remarkable rate - the equivalent of 5,000 suns every year. This vigorous activity was revealed by the infrared glow from smoky debris left over when the largest stars rapidly died.

Read more ....

Awesome Pictures Of The Sun

Boston.com published some great pictures of the Sun. The link is HERE.

The Power Of Music


Amazing Power of Music Revealed -- Live Science

More than 7,000 runners who raced earlier this month in a half-marathon in London were under the influence of a scientifically derived and powerful performance-enhancing stimulant — pop music.

The dance-able, upbeat music at London's "Run to the Beat" race was selected on the basis of the research and consultation of sport psychologist Costas Karageorghis of Brunel University in England. He has learned how to devise soundtracks that are just as powerful, if not more so, as some of the not-so-legal substances that athletes commonly take to excel.

"Music is a great way to regulate mood both before and during physical activity. A lot of athletes use music as if it's a legal drug," Karageorghis told LiveScience. "They can use it as a stimulant or as a sedative. Generally speaking, loud upbeat music has a stimulating effect and slow music reduces arousal."

The link between music and athletic performance is just one example of the inroads scientists and doctors are making into understanding the amazing power that music has over our minds and bodies. Science is backing up our intuition and experience, showing that music really does kill pain, reduce stress, better our brains and basically change how we experience life.

Read more ....

Thursday, October 16, 2008

Even Moderate Alcohol Seems To Shrink Brain


From Future Pundit:

Using 1,839 subjects in the Framingham Offspring Study examined with functional magnetic resonance imagining (fMRI) researchers find that even lower levels of alcohol drinking are associated with more rapid brain shrinkage with age.

Increasing alcohol intake was associated with loss in total brain volume greater than expected from age alone (P<0.001), reported Carol Ann Paul, of Wellesley College, and colleagues in the October issue of the Archives of Neurology. In the cross-sectional study, women were affected more strongly than men by moderate alcohol intake averaging one to two drinks a day (eight to 14 per week). Do you drink two drinks a day? If so, you are probably getting dumber faster than you need to. The hope was that cardiovascular benefits of moderate alcohol consumption would keep the brain better fed with blood and slow brain aging. But that hope seems unrealistic now. The cardiovascular benefits of low to moderate alcohol intake are thought to result from increasing blood flow rates, which would have been expected to benefit the brain also, Paul said. But rather than preventing normal age-related volume reductions, the effects of moderate drinking were closer to those of heavy drinking, which has been linked to brain atrophy and cognitive decline, the researchers noted.

Read more ....

Wednesday, October 15, 2008

World's Hottest Ever Planet Is Discovered - At A Sizzling 2250C It's Half As Hot As The Sun!

Hottest ever: The new planet is half the temperature of the Sun (Image from the Daily Mail)

From The Daily Mail:

Scientists have made an amazing discovery in space - the hottest ever planet ever found.

The planet, known as WASP-12b, is believed to be an amazing 2250 Centigrade, about half as hot as the Sun.

The planet, which one and half times the size of Jupiter, orbits at one fortieth the distance between the Earth and the Sun.

Despite the mind-boggling temperature of the new planet, it may not necessarily keep hold of its record for long. Wasp-12b only just edges out the last record-holder HD 149026b, which is a searing 2040 Centigrade.

The discovery was made using two sets of telescopes, one in Spain's Canary Islands and the other in South Africa, to search for signs of 'transiting' planets, which pass in front of and dim their host stars as seen from Earth.

Read more ....

Reading This Will Change Your Brain

Jeff Sherman / Taxi-Getty Images (Photo from Newsweek)

From Newsweek:

A leading neuroscientist says processing digital information can rewire your circuits. But is it evolution?

Is technology changing our brains? A new study by UCLA neuroscientist Gary Small adds to a growing body of research that says it is. And according to Small's new book, "iBRAIN: Surviving the Technological Alteration of the Modern Mind," a dramatic shift in how we gather information and communicate with one another has touched off an era of rapid evolution that may ultimately change the human brain as we know it. "Perhaps not since early man first discovered how to use a tool has the human brain been affected so quickly and so dramatically," he writes. "As the brain evolves and shifts its focus towards new technological skills, it drifts away from fundamental social skills."

The impact of technology on our circuitry should not come as a surprise. The brain's plasticity—it's ability to change in response to different stimuli—is well known. Professional musicians have more gray matter in brain regions responsible for planning finger movements. And athletes' brains are bulkier in areas that control hand-eye coordination. That's because the more time you devote to a specific activity, the stronger the neural pathways responsible for executing that activity become. So it makes sense that people who process a constant stream of digital information would have more neurons dedicated to filtering that information. Still, that's not the same thing as evolution.

Read more ....

Mysterious Cyclones Seen At Both of Saturn's Poles


From National Geographic:

Saturn boasts cyclones at each of its poles that dramatically outpower Earth-roving hurricanes, new images reveal.

The Cassini spacecraft—a cooperative project of NASA, the European Space Agency, and the Italian Space Agency—recently peered below what had previously appeared to be isolated cumulus clouds at the planet's south pole.

"What looked like puffy clouds in lower resolution images are turning out to be deep convective structures seen through the atmospheric haze," Cassini imaging team member Tony Del Genio said in a press release.

"One of them has punched through to a higher altitude and created its own little vortex."

"Little" is relative—the eye of the storm is surrounded by an outer ring of clouds that measures 2,500 miles (4,000 kilometers) wide. That's about five times the size of the largest cyclones, or hurricanes, on Earth.

Read more ....

Einstein's Relativity Survives Neutrino Test


From E! Science News:

Physicists working to disprove "Lorentz invariance" -- Einstein's prediction that matter and massless particles will behave the same no matter how they're turned or how fast they go -- won't get that satisfaction from muon neutrinos, at least for the time being, says a consortium of scientists. The test of Lorentz invariance, conducted by MINOS Experiment scientists and reported in the Oct. 10 issue of Physical Review Letters, started with a stream of muon neutrinos produced at Fermilab particle accelerator, near Chicago, and ended with a neutrino detector 750 meters away and 103 meters below ground. As the Earth does its daily rotation, the neutrino beam rotates too.

"If there's a field out there that can cause violations of Lorentz invariance, we should be able to see its effects as the beam rotates in space," said Indiana University Bloomington astrophysicist Stuart Mufson, a project leader. "But we did not. Einsteinian relativity lives to see another day."

Mufson is quick to point out that the Physical Review Letters report does not disprove the existence of a Lorentz-violating field. Despite the sophistication and power of MINOS's detector, "It may be that the field's effects are so exceedingly small that you'd need extraordinary tools to detect it," Mufson said.

Read more ....

Asia Trumping US On Science R&D

(Click To Enlarge)

From Christian Science Monitor:

Federal funding for research has been falling in real terms. Is the nation’s economic edge at stake?

Tallying this year’s Nobel Prizes so far, it’s been a respectable year for US-based scientists. Four shared the prestigious awards – three for chemistry and one as part of an international trio for physics.

As congratulations pour in, however, some science-policy specialists in the United States see troubling signs that federal support for research – measured by checks written rather than checks promised – may be weakening.

To those involved in federally funded research, their work represents a kind of intellectual infrastructure that, if allowed to erode, can begin to undermine the country’s economic competitiveness.

The immediate concern is the continuing resolution the president signed Sept. 30. Congress punted final passage of the federal budget to next March. Except for the Defense Department, other federal agencies responsible for performing or funding research must hold spending at or below fiscal year 2008 levels.

Read more ....

Coolest Inventions Of 2008


From Popular Mechanics:

Popular Mechanics Picks Them; The complete list can be found HERE.

Genetic Reasons For Baldness

Hope for the hairless: Researchers in Europe isolated stem cells from the hair follicles of mice (shown here under a microscope) and transplanted them onto the backs of hairless animals, which then sprouted hair. Credit: Nature Genetics

Baldness Genes -- Technology Review

Finding the genetic causes could lead to new therapies for baldness.

It may be small comfort to anyone sporting a comb-over, but researchers have found a second genetic risk factor for baldness.

Two groups, working independently, found variants on chromosome 20 that are associated with male pattern baldness--the most common cause of hair loss in men, and the root of a multimillion-dollar industry devoted to protecting, nurturing, and transplanting hair.

A third report identifies a new kind of stem cell in the hair follicles of mice that, when transplanted onto the skin of hairless rodents, causes the animals to sprout tufts of hair.

These latest findings offer greater insight into the genetic underpinnings of male pattern baldness, and into the process that produces a glorious head of hair in the unafflicted. According to a research team led by Tim Spector of King's College London, figuring out the genetic variants linked to the disorder could lead to gene therapies for baldness. The discovery of a risk factor on chromosome 20 may point to "an intriguing new potential target" for gene therapy.

Read more ....

Earliest Known Human TB Found In 9,000 Year-old Skeletons

The Skeletons submerged at the Alit-Yam site.
(Credit: Image courtesy of University College London)

From Science Daily:

ScienceDaily (Oct. 15, 2008) — The discovery of the earliest known cases of human tuberculosis (TB) in bones found submerged off the coast of Israel shows that the disease is 3000 years older than previously thought. Direct examination of this ancient DNA confirms the latest theory that bovine TB evolved later than human TB.

The new research, led by scientists from UCL (University College London) and Tel-Aviv University and published today in PLoS One, sheds light on how the TB bacterium has evolved over the millennia and increases our understanding of how it may change in the future.

The bones, thought to be of a mother and baby, were excavated from Alit-Yam, a 9000 year-old Pre-Pottery Neolithic village, which has been submerged off the coast of Haifa, Israel for thousands of years. Professor Israel Hershkovitz, from Tel-Aviv University's Department of Anatomy, noticed the characteristic bone lesions that are signs of TB in skeletons from the settlement, one of the earliest with evidence of domesticated cattle.

Read more ....

Tuesday, October 14, 2008

New Evidence Provides An Alternative Route 'Out Of Africa' For Early Humans

A generalized map of the Sahara shows the location of the sample sites and the fossilized river courses. (Credit: Anne Osborne)

From Science Daily:

ScienceDaily (Oct. 15, 2008) — The widely held belief that the Nile valley was the most likely route out of sub-Saharan Africa for early modern humans 120,000 year ago is challenged in a new paper in the Proceedings of the National Academy of Sciences.

A team led by the University of Bristol shows that wetter conditions reached a lot further north than previously thought, providing a wet 'corridor' through Libya for early human migrations. The results also help explain inconsistencies between archaeological finds.

While it is widely accepted that modern humans originated in sub-Saharan Africa 150-200 thousand years ago, their route of dispersal across the hyper-arid Sahara remains controversial. The Sahara covers most of North Africa and to cross it on foot would be a serious undertaking, even today with the most advanced equipment.

Read more ....

Why Women Have Bad Teeth

Anthropologist John Lukacs shows a 250,000-year-old "Kabwe skull" from Africa. The sex is unknown, but this specimen has 15 teeth still intact or partially present. 12 of them have obvious damage from dental cavities. Credit: Jim Barlow/U. of Oregon

From Live Science:


Women had poor dental health compared to men back in the hunter-gatherer era, and it got worse as societies turned to farming.

Now an anthropologist is pointing to an overlooked explanation — hormonal and dietary changes related to higher pregnancy rates.

Anthropologists usually argue that women's poor dental health resulted from culture-driven factors, such as cooking duties and the ongoing nibbling that can go along with that. But that narrow focus may overlook biological factors connected to women bearing more and more children in agricultural societies.

Today, men are more likely than women to suffer from gum disease, possibly because men are more likely to ignore dental care, according to Delta Dental. Nonetheless, women do not tend to have better oral health than men, for hormonal reasons, according to the American Academy of Periodontology.

Read more ....

NASA To Start Long Distance Repairs On Hubble

Hubble Space Telescope is seen with ground view in this picture taken from Space Shuttle in March 2002. (NASA/Handout/Reuters)

From Yahoo News/AP:

WASHINGTON - NASA engineers say they know how to fix the broken Hubble Space Telescope: They have to wake up computer parts that have been sleeping in space for more than 18 years.

On Wednesday, NASA will start a complicated remote-control fix of a major glitch that stopped the telescope from capturing and beaming down pictures. Hubble should be able to send stunning astronomy photos back to Earth by Friday, officials said.

The abrupt failure more than two weeks ago caused NASA to postpone its Hubble upgrade mission from October to sometime next February or so. The delay is costing NASA about $10 million a month, officials said in a Tuesday teleconference.

Read more ....

Chimps 90 Percent Gone In A "Final Stronghold"

A young chimpanzee is shown in Côte d'Ivoire's Taï National Park in an undated photo. (Photo from National Geographic)

From The National Geographic:

West African chimpanzees have declined by 90 percent in the last 18 years in an African country that is one of the subspecies' "final strongholds," a new study stays.

Scientists counting the rare chimps in Côte d'Ivoire (Ivory Coast) found only about 800 to 1,200 of the apes—down from about 8,000 to 12,000 in 1989-90. Before the new survey, the country had been thought to harbor about half of all West African chimps.

"We were not expecting such a drastic decrease," said lead author Geneviève Campbell, a doctoral candidate at the Max Planck Institute for Evolutionary Anthropology in Germany.

The 1989-90 survey had itself represented a significant decline from 1960s estimates of about a hundred thousand West African Chimps in Côte d'Ivoire.

Read more ....

Men Who Never Smoke Live Longer, Better Lives Than Heavy Smokers

From E! Science News:

Health-related quality of life appears to deteriorate as the number of cigarettes smoked per day increases, even in individuals who subsequently quit smoking, according to a report in the October 13 issue of Archives of Internal Medicine, one of the JAMA/Archives journals. Smoking has been shown to shorten men's lives between seven and 10 years, according to background information in the article. It also has been linked to factors that may reduce quality of life, including poor nutrition and lower socioeconomic status.

Arto Y. Strandberg, M.D., of the University of Helsinki, and colleagues followed 1,658 white men born between 1919 and 1934 who were healthy at their first assessment, conducted in 1974. Participants were mailed follow-up questionnaires in 2000 that assessed their current smoking status, health and quality of life. Deaths were tracked through Finnish national registers.

During the 26-year follow-up period, 372 (22.4 percent) of the men died. Those who had never smoked lived an average of 10 years longer than heavy smokers (more than 20 cigarettes per day). Non-smokers also had the best scores on all health-related quality of life measures, especially those associated with physical functioning. Physical health deteriorated at an increasing rate as the number of cigarettes smoked per day increased, with heavy smokers experiencing a decline equivalent to 10 years of aging.

Read more ....

Archaeological Dig Uncovers Roman Mystery

Archeologist Roger Wilson pulls out the clay amphora from its 1,500 year hiding place. (Credit: Photo courtesy of Roger Wilson from Science Daily)

From Science Daily:

ScienceDaily (Oct. 14, 2008) — University of British Columbia archaeologists have dug up a mystery worthy of Indiana Jones, one that includes a tomb, skeletons and burial rites with both Christian and pagan elements.

This summer, Prof. Roger Wilson led excavations at Kaukana, an ancient Roman village located near Punta Secca, a small town in the south-eastern province of Ragusa in Sicily.

Combing through the sand-buried site, the 15-member team made a series of startling discoveries. Central to the mystery was finding a tomb inside a room in a house dating from the sixth century AD.

Wilson explains that tombs during this period are normally found only in cemeteries outside the built-up area of a town, or around the apse of a church. And since the building was substantial with mortared walls and internal plaster, this would have been likely a tomb for the wealthy.

Read more ....

Home Lighting Could Be Wireless Network

An illustration shows an office where LED lighting provides both illumination and wireless communication. Credit: Boston University

From Live Science:

Lights may soon do more than just shine in dark places – they might wirelessly connect your computer, phone or car to the Internet.

Sounds strange, but consider this. Remote controls already use infrared light to communicate with TVs and DVD players. Turning ceiling and reading lamps into wireless access points could allow you to get your Internet fix almost anywhere.

"We can provide ubiquitous communication if we have network access wherever there's lighting," said Thomas Little, a computer engineer at Boston University.

These aren't just any lights, though. Little and other researchers hope to piggyback on the spread of light-emitting diode (LED) light bulbs, which are finding favor as low-energy, long-lasting alternatives to the more conventional incandescent or fluorescent light bulbs.

Read more ....

Monday, October 13, 2008

Step Aside, Chicken Soup: Eight Cold Elixirs

From ABC News:

Spanning the Globe in Search of Alternative Home Remedies for the Common Cold
No matter where you live or what language you speak, the symptoms of a coldare understood the world over -- no translation required: Your throat feels sore; your nose runs; you might cough or sneeze; and your body aches.

It's time to crawl under the covers and get the extra rest you need.

But a cold virus will need some coaxing to hit the road. Colds rarely make a quick exit and usually take about a week to run their course.

That's where the time-honored tradition of folk medicine comes into play.

Faced with a cold and a lack of modern medicine, our ancestors turned to nature for its treatments. And throughout the world, parts of plants -- the roots, stems, leaves, fruits and flowers -- are used to ease a cold and its symptoms.

Read more ....

For U.S. Astronauts, A Russian Second Home

The centrifuge at Star City is large enough for people to ride in and subjects them to high G-forces such as those experienced during spacecraft launches and re-entries. (Photo from the New York Times)

From The New York Times:

STAR CITY, Russia — Garrett Reisman was on his way to this formerly secret military base for several weeks of training, making his way through Kennedy Airport, when his cellphone rang. It was his boss, Steven W. Lindsey, the head of NASA’s astronaut office.

“Come back to Houston. They’ve canceled your training — they’re playing hardball,” Mr. Reisman recalled his boss saying. He was caught in a momentarily important dispute between NASA and the Russian space agency, Roscosmos.

Ultimately, Mr. Reisman’s aborted trip was just a bump in the road on the way to space: he spent three months aboard the International Space Station earlier this year, performed a spacewalk and even traded jokes over a video link with Stephen Colbert.

Everyone who works with the Russian space program has similar stories to tell of implacable bureaucrats, byzantine rules and decisions that seem capricious at best. And many of those stories are played out here in Star City, where cosmonauts and, now, astronauts from all over the world train to fly on Russian Soyuz spacecraft to go to the $100 billion International Space Station.

Read more ....

Google Satellite's Eye-Opening First Picture Promises Even Clearer Views Of Earth

Pin-sharp ... yet GeoEye-1's picture of Pennsylvania's Kutztown University
campus was taken from 423 miles above


From The Daily Mail:

Google's new satellite has beamed back its first picture, taken the moment the on-board camera was switched on.

The crystal-clear image promises to make the internet giant's photographic atlas, Google Earth, even more detailed.

The satellite went live for the first time two days ago following its launch last month from a U.S. air force base in California.

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Introducing the World’s Largest Solar Powered Winery

(Photo from Treehugger)

From Treehugger:

The largest solar installation of any winery in the world is set to be built for Constellation Wines’ Gonzalez winery in Monterrey County, CA by Pacific Power Management. Mitsubishi solar panels will cover 170,000 square feet on the winery warehouse roof, and will generate 1,700,000 kilowatt hours a year—enough to power over 50 percent of the winery’s energy needs.

Solar Powered Wine-Making, Solar Powered Living
What’s more, during the summer months when the winery isn’t operating at full capacity (it doesn’t process grapes in summer months), the electricity will be exported in order to power 25 percent of the energy needs of surrounding residential areas—1,695 homes in the city of Gonzalez.

This may very well be the most expansive effort to power a winery with alternative energy (though there are more than a few very green wineries already in operation, and it won't lay claim to the first carbon neutral winery).

Read more .....

Haemorrhagic Virus Carried By Common African Mouse


From the New Scientist:

Three people have died and another is seriously ill with a previously unknown strain of a virus carried by a common African rodent. The virus requires close contact to spread, but experts warn that more like it could be circulating.

A 36-year-old woman on a small farm outside the Zambian capital Lusaka developed flu-like symptoms in early September. When they worsened she was taken by air ambulance to South Africa, where she died.

Alarms were raised after the ambulance paramedic and the nurse who attended her also died after developing similar symptoms two weeks later. The nurse who tended the paramedic is also in a serious condition.

On Sunday South Africa's National Institute for Communicable Diseases announced that the victims were infected by an arenavirus, one of a family of viruses carried by rodents.

"They are very widespread," says Bob Swanepoel, former head of the NICD and one of the world's leading experts on haemorrhagic viruses. In Africa, arenaviruses are carried, with no symptoms, by the multimammate mouse, a common farm pest sold in Europe as a "pocket pet".

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Fusion Will Be Cracked "Within 30 Years"

(Click To Enlarge)
Temperatures inside the fusion reactor will reach 100 million degrees Celsius (ITER.ORG)

From Swissinfo:

Despite the complexity and high research and development costs, scientists are convinced they can unlock the massive power of nuclear fusion within a generation.

On Monday the International Atomic Energy Agency (IAEA) and the Thermonuclear Experimental Reactor Organisation (ITER) signed a cooperation agreement at the opening of an IAEA fusion energy conference, held in Geneva.

"ITER is one of the most important scientific projects in the world," said IAEA's director general, Yuri Sokolov.

ITER, or "the way" in Latin, is an experimental reactor being built in Cadarache, southern France, which has a practical goal: to establish whether fusion, the nuclear reaction that powers the sun and the hydrogen bomb, can be tamed to generate useful power on Earth.

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Break Out The Bubbly: White Wine May Be Good For You

From The New Scientist:

White wine lovers can feel a little less guilty about their habit. New research suggests that white varieties may offer similar heart benefits to red wines.

Rats that were fed white wine as part of their diet suffered less heart damage during cardiac arrest, compared to animals fed only water or grain alcohol. These benefits were similar to animals that ingested a red wine or its wonder ingredient found only in grape skin, resveratrol.

White wine, made from the pulp of the grape but not the skin, contains no resveratrol, which led many to pin the so-called "French paradox" – high fat intake but low rates of heart disease – on moderate consumption of red wines.

Not just reds, says Dipak Das, a molecular biologist at the University of Connecticut School of Medicine in Farmington. "The flesh of the grape can do the same job as the skin."

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Saturday, October 11, 2008

How We Evolve


From Seed Magazine:

When the previous generation of life scientists was coming up through the academy, there was a widespread assumption, not always articulated by professors, that human evolution had all but stopped. It had certainly shaped our prehuman ancestors — Australopithecus, Paranthropus, and the rest of the ape-men and man-apes in our bushy lineage — but once Homo sapiens developed agriculture and language, it was thought, we stopped changing. It was as though, having achieved its aim by the seventh day, evolution rested. "That was the stereotype that I learned," says population geneticist and anthropologist Henry Harpending. "We showed up 45,000 years ago and haven't changed since then."

The idea makes a rough-and-ready kind of sense. Natural selection derives its power to transform from the survival of some and the demise of others, and from differential reproductive success. But we nurse our sick back to health, and mating is no longer a privilege that males beat each other senseless to secure. As a result, even the less fit get to pass on their genes. Promiscuity and sperm competition have given way to spiritual love; the fittest and the unfit are treated as equals, and equally flourish. With the advent of culture and our fine sensibilities, the assumption was, natural selection went by the board.

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Extending The Life Of Fresh Cranberries

Cranberry harvest in New Jersey. (Credit: Photo by Keith Weller)

From Science Daily:

ScienceDaily (Oct. 11, 2008) — Cranberries are tart, tiny fruits packed with powerful antioxidants. The small, red berries offer a wide variety of health benefits. Not only are cranberries a healthy, low-calorie snack, but they can also play a significant role in preventing urinary tract infections, reducing the risk of gum disease and much more. In fact, studies show that the significant amounts of antioxidants in cranberries may help protect against heart disease, cancer, and other diseases.

The good news about cranberries is spreading, resulting in growing consumer demand for fresh cranberries and cranberry products. This demand has led to increased interest in finding ways to extend the shelf life of the popular fruit. Setting out to determine the optimum conditions for storing fresh cranberries, Charles F. Forney. a research scientist in Postharvest Physiology at the Atlantic Food and Horticulture Research Centre in Nova Scotia, Canada, conducted a study of fresh cranberries and their postharvest life. Forney's study was published in the April 2008 issue of HortScience.

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Promising New Material Could Improve Gas Mileage

Up to three-quarters of the potential energy you are paying at the gas pump for is wasted. A good deal of it goes right out the tailpipe instead of powering your car. (Credit: iStockphoto/Rich Legg)

From Space Daily:

ScienceDaily (Oct. 10, 2008) — With gasoline at high prices, it's disheartening to know that up to three-quarters of the potential energy you are paying for is wasted. A good deal of it goes right out the tailpipe instead of powering your car.

Now a Northwestern University-led research team has identified a promising new material that could transform a technology that currently cools and heats car seats -- thermoelectrics -- into one that also efficiently converts waste heat into electricity to help power the car and improve gas mileage.

The researchers discovered that adding two metals, antimony and lead, to the well-known semiconductor lead-telluride, produces a thermoelectric material that is more efficient at high temperatures than existing materials. The results are published online in the journal Angewandte Chemie.

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Animals Have Personalities, Too


From Live Science:

We know our siblings and in-laws have personalities — sometimes to a fault. But science recently has revealed that such individual differences are widespread in the animal kingdom, even reaching to spiders, birds, mice, squid, rats and pigs.

Now a new mathematical model helps to explain how and why such animal temperaments develop over time.

The model explains a central question of both animal and human personality — why certain individuals are more rigid or flexible than others, and why some change their behavior in response to changes in their environment while others do not.

The answer, says Franz Weissing of the University of Groningen, the Netherlands, comes down to costs and benefits. A group in which both rigid and flexible personality types co-exist makes for an optimal system, his model shows.

The field of animal-personality study is starting to gain some substance and credibility, said University of Texas psychologist Sam Gosling, who does research in this field.

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A New Explosive

A high-energy-density nitrate ester (1) with unique properties was synthesized in good yield in a three-step process. Destructive stimuli studies and explosive performance calculations show that (1) has similar performance properties to those of well-characterized explosives.

From E! Science News:

Since the discovery of nitroglycerin in 1846, the nitrate ester group of compounds has been known for its explosive properties. A whole series of other nitrate esters have been subsequently put to use as explosives and fuels. A research team led by David E. Chavez at Los Alamos National Laboratory (USA) has now developed a novel tetranitrate ester. As reported in the journal Angewandte Chemie, the compound has a particularly interesting characteristic profile: it is solid at room temperature, is a highly powerful explosive, and can be melt-cast into the desired shape. Nitrate esters are organic nitric acid compounds that can contain enormous explosive force. However, their liquid physical state makes handling very difficult. By mixing in various other components, Alfred Nobel developed dynamite, a distinctly safer and easier to handle nitroglycerine-based explosive. The only solid nitrate ester used as an explosive before is nitropenta. Because of its high melting point of about 140 °C, nitropenta must be pressed into the desired form.

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New Spacecraft to Explore Interstellar Boundary -- Popsci

IBEX Mounted on Pegasus: Photo courtesy NASA

NASA's IBEX craft is heading out this month to map the edges of the solar system

The "termination shock" sounds like the stuff science fiction movies are made of. In reality, it marks the boundary between our solar system and interstellar space. The invisible "shock" forms as our sun's solar winds begin to encounter the gases and magnetic fields of outer space, which slows the winds down abruptly.

On October 19, NASA will launch the first spacecraft designed to image and map the interactions that take place in this boundary zone. The Interstellar Boundary Explorer, or IBEX, will be propelled from the Kwajalein Atoll into a high-altitude orbit that will eventually take it about 200,000 miles from Earth, where it will capture images of processes taking place in the termination shock and beyond.

"The interstellar boundary regions are critical because they shield us from the vast majority of dangerous galactic cosmic rays, which otherwise would penetrate into Earth's orbit and make human spaceflight much more dangerous," said David J. McComas, principal investigator of the IBEX mission and senior executive director the Space Science and Engineering Division at the Southwest Research Institute.

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Friday, October 10, 2008

Sea Ice Extent Recovering Quickly

(Click To Enlarge)
(Photo from Watts Up With That)

From Watts With That:

As many readers know, the predictions for record low sea ice minimums in 2008 were not met, and 2008 ended up about 9% higher than in 2007 at the end of the season. See the report here.

Now in looking at AMSR-E satellite data, the red line on the graph below, one can see that the recovery is at a significantly faster rate than in recent years.

I’m not one to read much into this, as to do so would be to make the same mistake as was done earlier this year when the NSIDC melt trend led one researcher there to conclude that we’d see an “ice free north pole”.

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Babies Know Happy From Sad Songs


From Live Science:

Babies as young as 5 months can distinguish an upbeat tune, such as "Ode to Joy" from Beethoven's Ninth Symphony, from a lineup of gloomy tunes.

Researchers displayed an emotionally-neutral face for the baby while sad music played. When the baby looked away from the face, the music stopped and a new sad song would start. When the happier "Ode to Joy" played, the babies stared at the face three to four seconds longer, suggesting they were interested in the shift.

By 9 months old, babies can do the opposite, picking out the sorrowful sound of Beethoven's Seventh Symphony from a pack of happy pieces.

The finding is another example of how babies make sense of the world long before they can talk, said Brigham Young University psychology professor and study author Ross Flom.

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Blood Test Finds Coronary Disease


From The New Observer:

A simple blood test could soon replace expensive and invasive exams to detect coronary artery disease.

The test, announced Wednesday by doctors at Duke, is being developed after the discovery of genetic markers that show the presence and intensity of blockage in coronary artery disease, said a Duke cardiologist who co-authored research on the link.

Such a blood test could save millions of dollars annually by allowing some patients to avoid risky procedures in which catheters are inserted into patients' arteries.

"I think it is a big deal," Dr. William E. Kraus, a Duke cardiologist, said in an interview Wednesday. "What we want is a test that tells us the status of your disease today and if what you have is heart disease." Kraus' research was published in the medical journal Circulation: Cardiovascular Genetics.

Current detection of the disease -- the leading cause of death in the United States and a top killer in North Carolina, with 23,610 deaths in 2006 -- can require expensive tests such as echocardiograms, stress tests and imaging techniques that use radiation.

"A blood-based test to diagnose coronary artery disease would be less invasive and risky and would prevent patients from [receiving] radiation exposure," Kraus said in a statement.

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In Puppy Play, It's Ladies First

She's the Boss: During puppy play, young males sometimes put themselves in a position where they can be taken advantage of by their female playmates. The early behavior could serve them well later in life, say researchers. (Photo: From Discovery)

From Discovery:

Oct. 9, 2008 -- It may not be such a dog-eat-dog world after all, at least among puppies. A new study has found that young male dogs playing with female pups will often let the females win, even if the males have a physical advantage.

Male dogs sometimes place themselves in potentially disadvantageous positions that could make them more vulnerable to attack, and researchers suspect the opportunity to play may be more important to them than winning.

Such self-handicapping has been documented before in red-necked wallabies, squirrel monkeys, hamadryas baboons and even humans, all of which frequently take on defensive positions when playing with youngsters, in particular.

The gentlemanly dog behavior is even accompanied with a bow.

Read more ....

Thursday, October 9, 2008

E-Science: Massive Experiments, Global Networks

Supercomputers: European Organization for Nuclear Research (CERN) scientists work in the control center of the Large Hadron Collider in Geneva. The massive amount of information collected by the collider will be shared across an international computer network.
(Fabrice Coffrini/AP/File). (Photo from Christian Science Monitor).

From Christian Science Monitor:

Worldwide computer grids mean even small-timers can contribute to ‘big science.’

Elizabeth City State University in North Carolina is not the first name that pops up in conversations about centers of polar science.

Tucked at the tip of a branch of Albemarle Sound, along the state’s northeast coast, the well-regarded, historically African-American university focuses largely on undergraduate education. But it’s also taking part in cutting-edge Arctic and Antarctic science as a key player in PolarGrid – a powerful, sophisticated computer network researchers use to analyze images of ice sheets in Greenland and Antarctica and model their behavior.

It’s part of the burgeoning world of e-Science – a realm where the questions are big, cutting across once-disparate disciplines. And the answers often demand enormous amounts of number crunching through networks of interconnected computing centers at universities and laboratories around the world – a process known as grid computing.

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Hawking: If We Survive The Next 200 Years, We Should Be OK

Stephen Hawking, here delivering a lecture in May, spoke recently to CNN about his vision of the future. (Photo from CNN)

From CNN:

CAMBRIDGE, England (CNN) -- Professor Stephen Hawking, one of the world's great scientists, is looking to the stars to save the human race -- but pessimism is overriding his natural optimism.

Hawking, in an exclusive CNN interview, said that if humans can survive the next 200 years and learn to live in space, then our future will be bright.

"I believe that the long-term future of the human race must be in space," said Hawking, who is almost completely paralyzed by the illness ALS.

"It will be difficult enough to avoid disaster on planet Earth in the next 100 years, let alone next thousand, or million. The human race shouldn't have all its eggs in one basket, or on one planet. Let's hope we can avoid dropping the basket until we have spread the load."

Hawking is one of the few scientists known to a wide audience outside academia thanks to his best-selling books, a guest spot on "The Simpsons" and an ability to clearly explain the complexities of theoretical physics.

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Nobel Prize For Physics Announced

From left, Makoto Kobayashi, Toshihide Masukawa and Yoichiro Nambu. (Reuters)

2 Japanese, 1 American Share Physics Nobel -- CBS News

Prize Won For Subatomic Theories In Field Of Elementary Particle Physics

(AP) Two Japanese citizens and an American won the 2008 Nobel Prize in physics for discoveries in the world of subatomic physics, the Royal Swedish Academy of Sciences announced Tuesday.

American Yoichiro Nambu, 87, of the University of Chicago, won half of the prize for the discovery of a mechanism called spontaneous broken symmetry. Makoto Kobayashi and Toshihide Maskawa of Japan shared the other half of the prize for discovering the origin of the broken symmetry that predicts the existence of at least three families of quarks in nature.

In its citation, the academy said that this "year's Nobel laureates in physics have presented theoretical insights that give us a deeper understanding of what happens far inside the tiniest building blocks of matter."

Turning to Nambu, it said that his work in "Spontaneous broken symmetry conceals nature's order under an apparently jumbled surface," the academy said in its citation. "Nambu's theories permeate the Standard Model of elementary particle physics. The model unifies the smallest building blocks of all matter and three of nature's four forces in one single theory."

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More News On The Nobel Prize For Physics

Three Physicists Share Nobel Prize -- New York Times
1 American and 2 Japanese share Nobel physics prize -- International Herald Tribune
Nobel physics prize goes to 2 Japanese, 1 American -- Myway/AP
2 Japanese, 1 American Share Nobel Physics Prize -- American Scientist
Nobel Prize in Physics winners voice joy -- Daily Yomiuri
3 Win Physics Nobel for Subatomic Particle Research -- Live Science
U.S. scientist, Japanese pair share Nobel physics prize -- Mercury News
Nobel Honors Glimpse Into Universe's Design -- NPR
Nobel Prize for Physics Honors Subatomic Breakthroughs -- National Geographic
Nambu, Kobayashi and Maskawa Win Physics Nobel -- Scientific American
Nobel Prize in physics shared for work that unifies forces of nature -- Science News
Shy Japanese Nobel laureate has no passport: wife -- AFP
Physics Nobel snubs key researcher -- New Scientists

Nobel Prize For Chemistry Announced

Martin Chalfie of Columbia University, Osamu Shimomura of the Marine Biological Laboratory in Woods Hole, Mass., and Roger Y. Tsien of UC San Diego will share the 2008 Nobel Prize for chemistry.(Photo from L.A. Times)

Three Chemists Win Nobel Prize -- New York Times

One Japanese and two American scientists won this year’s Nobel Prize in Chemistry on Wednesday for taking the ability of some jellyfish to glow green and transforming it into a ubiquitous tool of molecular biology to watch the dance of living cells and the proteins within them.

Osamu Shimomura, an emeritus professor at the Marine Biological Laboratory in Woods Hole, Mass. and Boston University Medical School, Martin Chalfie of Columbia University, and Roger Y. Tsien of the University of California, San Diego, will share the $1.4 million prize awarded by the Royal Swedish Academy of Sciences.

The green fluorescent protein, or G.F.P. for short, was observed in 1962 in the jellyfish Aequorea victoria, which drifts in the ocean currents off the west coast of North America.

Dr. Shimomura was able to identify the protein and showed that it glowed bright green under ultraviolet light.

Dr. Chalfie showed how the protein could be used as a biological identifier tag by inserting the gene that produces the protein into the DNA of an organism.

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More News On The Nobel Prize For Chemistry

Chemistry Nobel Prize Awarded for Glowing Protein Work -- National Geographic
Scientists Go for the Glow in Fluorescent Proteins -- Wired News
Three U.S.-based scientists share Nobel chemistry prize -- L.A. Times
Japanese, American Scientists Win Nobel Chemistry Prize -- Voice Of America
Green jellyfish protein scientists win Nobel -- Reuters
Chemistry Nobel Glows Fluorescent Green -- Scientific American
A Nobel for Illuminating Biology -- Technology Review
How Green Was the Nobel Prize in Chemistry -- Scientific American
Cell Illuminators Win Chemistry Nobel -- Wired News
The Nobel Prize in Chemistry and the Beauty of Fluorescent Protein -- Wall Street Journal
Nobel Prize in chemistry commends finding and use of green fluorescent protein -- Science News
Nobel prize for chemistry illuminates disease -- The Guardian
Chemistry Nobel Prize Awarded to Scientists Who Discovered and Developed GFP Fluorescent Protein -- GEN
Nobel won after 50 yrs, 100,000 jellyfish -- Daily Yomiuri
Nobel winners recall postwar struggles -- Japan Times
Nobel prize laureate finds winning news on internet -- AFP
Glowing Gene's Discoverer Left Out Of Nobel Prize -- NPR
Nobel Predictions: Score! -- Newsweek
US takes 2008 chemistry prize, Nobel league lead - October 08, 2008 -- Nature
Recent winners of the Nobel Prize in chemistry, and their research, according to the Nobel Foundation -- AP