Archive for the ‘Science’ Category
Buckyball solids found in space
After finding gaseous clouds of buckyballs in space last year, astronomers have now discovered the carbon balls in a solid form, around a pair of stars some 6,500 light-years from Earth.
Buckyballs are microscopic spheres, where 60 carbon atoms are arranged — with alternating patterns of hexagons and pentagons — into a football-like pattern. The unusual structure makes them incredibly strong, and ideal candidates for things like superconducting materials, medicines, water purification and armor. They got their name because of their resemblance to the geodesic domes of the architect Buckminster Fuller.
So far, they’ve only been found in gas form in space. In 2010, astronomers using the Spitzer space telescope found the balls in a planetary nebula called Tc 1.
But with this latest discovery, again using data from NASA’s Spitzer space telescope, astronomers found particles consisting of stacked buckyballs. They had stacked together like oranges in a crate to form a solid shape.
“The particles we detected are minuscule, far smaller than the width of a hair, but each one would contain stacks of millions of buckyballs,” said the paper’s lead author Nye Evans of Keele University in England.
The research team was able to identify the solid form of buckyballs in the Spitzer data because they emit light in a unique way that differs from the gaseous form. In all, the team detected enough solid buckyballs to fill the equivalent in volume to 10,000 Mount Everests.
Buckyballs may be more widely distributed in space than anyone thought. They may be common enough to be an essential form of carbon as building blocks for organic substances, organic life.
In a hotter past – horses got down to the size of cats

More than 50 million years ago, the Earth was a hotter place than it is today and horses the size of pet cats roamed the forests of North America, US scientists said on Thursday. These earliest known horses, known as Sifrhippus, actually grew smaller over tens of thousands of years in order to adapt to the higher temperatures of a period when methane emissions spiked, possibly due to major volcanic eruptions.
The research could have implications for how the planet’s modern animals may adapt to a warming planet due to climate change and higher carbon emissions, scientists said.
Researchers made the discovery after analyzing horse tooth fossils uncovered in the western US state of Wyoming that showed the older ones were larger, and that the species had shrunk over time. Many animals became extinct during this 175,000-year period, known as the Paleocene-Eocene Thermal Maximum, some 56 million years ago. Others got smaller in order to survive with limited resources.
“Because it’s over a long enough time, you can argue very strongly that what you’re looking at is natural selection and evolution — that it’s actually corresponding to the shift in temperature and driving the evolution of these horses,” said co-author Jonathan Bloch of the Florida Museum of Natural History.
Average global temperatures rose by about 10 degrees Fahrenheit during that span due to massive increase in carbon that was unleashed into the air and oceans. Surface sea temperature in the Arctic was about 23 Celsius (73 Fahrenheit), much like the temperatures of contemporary subtropical waters today.
The research showed that Sifrhippus shrank by almost one third, reaching the size of a small house cat (about 8.5 pounds, four kilograms) in the first 130,000 years of the period. Then, the horses grew larger again, to about 15 pounds (seven kilograms) in the final 45,000 years of the period.
About a third of known mammals also minimized themselves during this time, some by as much as one half.
“This has implications, potentially, for what we might expect to see over the next century or two, at least with some of the climate models that are predicting that we will see warming of as much as four degrees Centigrade (seven degrees Fahrenheit) over the next 100 years,” said co-author Ross Secord of the University of Nebraska-Lincoln.
Some predictable changes along this line of thought have already been observed, It is much too early to sort out all the potential changes, of course. I have the most fun wandering through regional climatology over questions of rainfall – but, that’s only natural living in high desert country.
Fortunately, scientists are not only open-minded by definition, their natural conservatism keeps wild swings in check – regardless of perceptions from the Chicken Little variety of climate-carbon coward. Legitimate analysis generally stays within range of my generalist comprehension.
Scientists grow Pleistocene plants from seeds buried 30,000 years
On the frozen edge of the Kolyma River in northeastern Siberia, in an ancient pantry harboring seeds and other stores, an Arctic ground squirrel burrowed into the dirt and buried a small, dark fruit from a flowering plant. The squirrel’s prize quickly froze in the cold ground and was preserved in permafrost, waiting to grow into a fully fledged flowering plant until it was unearthed again. After 30,000 years, it finally was. Scientists in Russia have now regenerated this Pleistocene plant, transplanting it into a pot in the lab. A year later, it grew forth and bore fruit.
The specimen is distinctly different from the modern-day version of Silene stenophylla, or narrow-leafed Campion. It suggests that the permafrost is a potential new source of ancient gene pools long believed to be extinct, scientists said.
The fruits were buried about 125 feet in undisturbed, never thawed permafrost sediments, nestled at roughly 19.4 degrees F (-7 C). Radiocarbon dating showed the fruits were 31,800 years old, give or take about 300 years. Seeds are incredible things, storing the embryo of a new plant and encasing it in protective material until conditions are right for it to germinate.
Scientists led by David Gilichinsky at the Russian Academy of Sciences worked with three of these fruits and took placental tissue samples. They fed the tissue cultures a cocktail of nutrients to induce root growth, and once the plants were rooted, they were transplanted into pots in a greenhouse. Just as they were supposed to, plants grew, developed flowers and fruits, and went to seed…
All of this is interesting not just because it’s amazing to regenerate a Pleistocene plant, which of course it is, but because the permafrost may be an important new gene pool. Other ancient squirrel burrows have been found in the Yukon territory and in Alaska. That’s interesting for pure research, but also because of what may happen as the planet warms and more permafrost regions thaw. Organisms will be released from their long, cold sleep, and these ancient life forms could become part of modern ecosystems, affecting modern phenotypes and changing the landscape.
Permafrost has long served as a functional deep freeze for animal and vegetable matter reaching back into the last Ice Age. There have been dinners of thawed mammoth for nutball gourmands – and, yes, that brings up the suggestion again of cloning the wooly mammoth in a modern elephant.
Frankly, I’m as interested in the vegetable side of the spectrum of life. It’s more likely to aid in adaptability to climate change – especially since our corporate masters and their flunkies in politics and society seem to have little inclination to respond any useful view of science.
How did the leopard get its spots? Alan Turing was right all along

He cracked the Nazi Enigma code, helped end the Second World War and is recognised as the father of computer science.
But for his final challenge, Alan Turing turned his mathematical mind to one of the natural world’s most enduring riddles: how the leopard got its spots. Now, 60 years on, scientists have discovered that Turing’s theory for why repeated patterns occur in nature was absolutely correct.
In his 1952 paper The Chemical Basis of Morphogenesis, the code breaker proposed that animals’ stripes and spots are caused by the interaction of a pair of chemicals, dubbed ‘morphogens’.
One of the chemicals, he suggested, triggered cell activity, while the other hindered it. The way in which they interact would dictate where cells grow, creating familiar patterns on the fur of animals.
While scientists have been able to simulate Turing’s theory using computer models, for the first time scientists have identified the exact chemicals in action.
Researchers at King’s College London found the interaction between two morphogens named Fibroblast Growth Factor and Sonic Hedgehog dictated the ridge patterns in the mouths of mice, as predicted by Turing’s models.
The same theory applies to the stripes and spots of big cats, the number of bristles on a fruit fly, or the whorls on a leaf.
Dr Jeremy Green, a reader in Developmental Cell Biology, said the discovery could help progress the next generation of stem cell therapy by indicating how to build complex structures such as organs in a laboratory…“Our study provides the first experimental identification of an activator-inhibitor system at work in the generation of stripes – in this case in the ridges of the mouth palate.”
While biological processes at work are highly complicated, the mathematics behind Turing’s theory was “ingeniously simple”, he said.
“He was a great British genius. He had the confidence to take a completely new field, biology, and ask, ‘What can I add to it?’”
The mathematician, who would have been 100 years old this June, was convicted of being a homosexual the month the paper was completed. He committed suicide two years later…
The reward of a bigoted nation for his efforts at stopping Hitler and winning WW2.
New dangers found in tiny pervasive particles in air pollution

Fine atmospheric particles — smaller than one-thirtieth of the diameter of a human hair — were identified more than 20 years ago as the most lethal of the widely dispersed air pollutants in the United States. Linked to both heart and lung disease, they kill an estimated 50,000 Americans each year. But more recently, scientists have been puzzled to learn that a subset of these particles, called secondary organic aerosols, has a greater total mass, and is thus more dangerous, than previously understood.
A batch of new scientific findings is helping sort out the discrepancy, including, most recently, a study led by scientists at the University of California, Irvine, and the Pacific Northwest National Laboratory in Richland, Wash…It indicates that the compounds’ persistence in the atmosphere was under-represented in older scientific models.
“If the authors’ analysis is correct, the public is now facing a false sense of security in knowing whether the air they breathe is indeed safe,” said Bill Becker, of the National Association of Clean Air Agencies.
Taken together, the findings of the new study and of a handful of others published in the past two years could mean that two decades’ worth of pollution-control strategies — focused on keeping tiny particles from escaping into the atmosphere — have addressed only part of the problem.
Scientists and regulators say that new models, strategies and technologies would be needed to address the secondary organic aerosol particles, which are formed not during combustion but later, in the wake of interactions between pollutants and natural chemical compounds…
The Irvine study of the formation of secondary compounds in the atmosphere…upends previous assumptions about the fate of the byproducts of the pollution from internal-combustion engines. These gaseous byproducts were thought to incorporate themselves into tiny airborne drops of liquid that would then dissipate quickly as the drops evaporated.
The new study finds instead that they attach themselves more tightly to airborne organic particles, creating tiny tar balls that evaporate more slowly and persist longer than anyone had thought. E.P.A. models built on these assumptions now appear to understate the total amount of fine particles, according to Barbara J. Finlayson-Pitts…one of the study’s authors.
“If you’re going to use models in a predictive sense, you need to make sure they are getting the right answer for the right reasons,” she said. “Right now most models are not getting the right answer.”
Great. RTFA for a few more comments on the need for more study, greater concern. Comments which come from scientists associated with a wide range of that portion of the political spectrum that at least recognizes science as a means of understanding and perfecting life as we know it.
Statements by scientists must be approved by Canada’s Conservative government

The Canadian government has been accused of “muzzling” its scientists. Speakers at a major science meeting being held in Canada said communication of vital research on health and environment issues is being suppressed…
Prof Thomas Pedersen, a senior scientist at the University of Victoria, said he believed there was a political motive in some cases.
“The Prime Minister (Stephen Harper) is keen to keep control of the message, I think to ensure that the government won’t be embarrassed by scientific findings of its scientists that run counter to sound environmental stewardship,” he said. “I suspect the federal government would prefer that its scientists don’t discuss research that points out just how serious the climate change challenge is…”
The allegation of “muzzling” came up at a session of the AAAS meeting to discuss the impact of a media protocol introduced by the Conservative government shortly after it was elected in 2008.
The protocol requires that all interview requests for scientists employed by the government must first be cleared by officials. A decision as to whether to allow the interview can take several days, which can prevent government scientists commenting on breaking news stories.
Thinktank phonies accused of lying about taxes just as they lie about climate change

The Heartland Institute, the libertarian thinktank whose project to undermine science lessons for schoolchildren was exposed this week, faces new scrutiny of its finances – including its donors and tax status.
The Guardian has learned of a whistleblower complaint to the Internal Revenue Service about Heartland’s 501(c)(3) tax-exempt status…
The unauthorised release of internal documents indicated Heartland had received $14 million over several years from a single anonymous donor as well as tobacco and liquor companies and corporations pledged to social responsibility, including the General Motors Foundation.
The release of the donors’ list led a number of environmental organisations to demand GM, which gave $30,000, and Microsoft, which gave $59,908 in free software, to sever their ties with a thinktank that has a core mission of discrediting climate science…
Others are focusing on Heartland’s support from the tobacco industry as well as major health and pharmaceutical companies for a thinktank which has opposed smoking bans and healthcare reform.
John Mashey, a retired computer scientist and Silicon Valley executive, said he filed a complaint to the IRS this week that said Heartland’s public relations and lobbying efforts violated its non-profit status. Mashey said he sent off his audit, the product of three months’ research, just a few hours before the unauthorised release of the Heartland documents.
Mashey said in a telephone interview that the complaint looked at the activities of Heartland and two other organisations that have been prominent in misinforming the public about climate change, the Science and Environmental Policy Project, run by Fred Singer, and the Centre for the Study of Carbon Dioxide and Global Change, run by Craig Idso. Both men were funded by Heartland, with Idso receiving $11,600 per month and Singer $5,500 a month, according to the 2012 budget…
“I believe there was a massive abuse of 501c(3),” Mashey said. “My extensive study of these thinktanks showed numerous specific actions that violated the rules – such as that their work is supposed to be factually based. Such as there was a whole lot of behaviour that sure looked like lobbying and sending money to foreign organisations that are not charities.”
Mashey later published his audit of Heartland finances in Desmogblog, which was the first outlet to run the trove of Heartland documents.
Overdue. Creeps like this violate federal law on non-profit status all the time when they serve as a lobbying front for corporations with a vested interest in Heartland’s comments – whether that be climate, tobacco or fronting for pharmaceutical companies.
Doctors “firing” families from their practice who refuse vaccination

Doctor Allan LeReau
Pediatricians fed up with parents who refuse to vaccinate their children out of concern it can cause autism or other problems increasingly are “firing” such families from their practices, raising questions about a doctor’s responsibility to these patients.
Medical associations don’t recommend such patient bans, but the practice appears to be growing, according to vaccine researchers…
In a study of Connecticut pediatricians published last year, some 30% of 133 doctors said they had asked a family to leave their practice for vaccine refusal, and a recent survey of 909 Midwestern pediatricians found that 21% reported discharging families for the same reason…
Most pediatricians consider preventing disease through vaccines a primary goal of their job. The Centers for Disease Control and Prevention and AAP issue an annual recommended vaccination schedule, but some parents ask if their child’s immunizations can be pushed back or skipped altogether, pediatricians say.
It’s hard to imagine an outbreak of smallpox today. But for centuries the deadly virus wiped out entire populations. WSJ’s Christina Tsuei reports on how the discovery of vaccines (with the help of cows) eradicated the disease and led to the prevention of many other diseases.
While rates for several key inoculations in young children rose between 2009 and 2010, according to the CDC, lower immunization rates have been blamed as a factor in U.S. outbreaks of whooping cough and measles in recent years.
Parents often voice concerns about autism or that their child’s immune system may be overwhelmed by too many vaccines at once…Numerous studies since have dispelled these concerns among scientists. Rather, scientists say, it is more likely that autism symptoms begin showing up around the same age children are vaccinated…
But, parents whose primary source of medical knowledge is Mr. Stupid and Greedy who’s selling the latest spooky cure-all tome aren’t about to listen to their doctor.
Great Backyard Bird Count is coming up — February 17-20

Dunno what you two want; but, I’m waiting for lunch
Warmer temperatures and lack of snow in parts of North America are setting the stage for what could be a most intriguing 15th annual Great Backyard Bird Count coming up Feb. 17-20.
Bird watchers across the United States and Canada are getting ready to tally millions of birds in the annual count coordinated by the Cornell Lab of Ornithology, Audubon and Canadian partner Bird Studies Canada.
In past counts, participants were most likely to report American robins in areas without snow. Will more robins be seen farther north this year? Will some birds, such as Eastern Phoebes, begin their migrations earlier? And where will the “Harry Potter” owl turn up next? Snowy owls have dazzled spectators as these Arctic birds have ventured south in unusual numbers this winter — an unpredictable occurrence that experts believe is related more to the availability of food than to weather…
Participants count birds at any location they wish for at least 15 minutes on one or more days of the count, then enter their tallies at birdcount.org. Anyone can participate in the free event, and no registration is required.
Last year, participants submitted more than 92,000 checklists with more than 11 million bird observations. These data capture a picture of how bird populations are changing across the continent year after year — a feat that would be impossible without the help of tens of thousands of participants.
“This is a very detailed snapshot of continental bird distribution,” said John Fitzpatrick, director of the Cornell Lab of Ornithology. “Imagine scientists 250 years from now being able to compare these data with their own..?
Visit birdcount.org to learn more about how to join the count, get bird ID tips, downloadable instructions and more. The count also includes a photo contest and a prize drawing for participants who enter at least one bird checklist online.
It’s fun to log back in a few days after all the info is online to compare changes, see what other folks in your region have posted. We now have redwing blackbirds wintering over, experienced the din of returning robins earlier than ever this week, saw Canadian geese heading north last week.
How Heartland Institute funnels corporate funds to undermine climate science — revealed in leaked documents

The inner workings of a libertarian thinktank working to discredit the established science on climate change have been exposed by a leak of confidential documents detailing its strategy and fundraising networks. DeSmogBlog, which broke the story, said it had received the confidential documents from an “insider” at the Heartland Institute, which is based in Chicago. The blog monitors industry efforts to discredit climate science.
The scheme includes spending $100,000 for spreading the message in K-12 schools that “the topic of climate change is controversial and uncertain – two key points that are effective at dissuading teachers from teaching science”, the documents said…
The Heartland Institute, founded in 1984, has built a reputation over the years for providing a forum for climate change sceptics. But it is especially known for hosting a series of lavish conferences of climate science doubters at expensive hotels in New York’s Times Square as well as in Washington DC…
The documents posted on Desmog’s website include confidential memos of Heartland’s climate science denial strategy, its 2012 budget and fundraising plan, and minutes from a recent board meeting. The fundraising plan suggests Heartland is hoping for a banner year, projecting it will raise $7.7m in 2012, up 70% from last year.
The papers indicate that discrediting established climate science remains a core mission of the organisation, which has received support from a network of wealthy individuals – including the Koch oil billionaires as well as corporations such as Microsoft and RJR Tobacco.
The documents confirm what environmental groups…have long suspected: that Heartland itself is a major source of funding to a network of experts and bloggers who have been prominent in the campaign to discredit established science.
Heartland is anxious to retain its hold over mainstream media outlets, fretting in the documents about how Forbes magazine is publishing prominent climate scientists such as Peter Gleick. “This influential audience has usually been reliably anti-climate and it is important to keep opposing voices out,” Heartland documents warn…
The plan also notes the difficulty of injecting non-scientific topics in schools. “Heartland has tried to make material available to teachers, but has had only limited success. Principals and teachers are heavily biased toward the alarmist perspective. [That means real science] Moreover, material for classroom use must be carefully written to meet curriculum guidelines, and the amount of time teachers have for supplemental material is steadily shrinking due to the spread of standardized tests in K-12 education,” the fundraising plan said.
Creeps and cretins. The usual cabal of anti-intellectual, anti-science blabbermouths who show up to serve as flunkies for corporations profiteering from polluting enterprises, once again. Sure is nice to see it documented though for folks who need a little bracing in the backbone department. Like the White House.






