A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Monday, August 31, 2009
iPhones For The Blind
From Popular Science:
Quick, get out your iPhone. Unlock it and slide over to that game you've been playing when your boss isn't looking. Now mute it, put the phone to sleep, close your eyes, and try to do that again. Can you do it? Didn't think so.
There's not a simple way to use touchscreens when you can't see what you're doing, which means 10 million blind and low-vision Americans can't use this ubiquitous technology. But what if you could feel it? What if the "slide to unlock" key was an actual slide? Even better, what if you could have a Braille iPhone?
Read more ....
Sunday, August 30, 2009
Aspirin Does More Harm Than Good In Healthy People: Research
Aspirin: The drug does more harm than good in healthy people,
British researchers have said Photo: GETTY
British researchers have said Photo: GETTY
From The Telegraph:
Healthy people who take aspirin to prevent a heart attack are doing themselves more harm than good, researchers have said.
Millions of people - including a substantial number of the "worried well" - take a daily dose of the drug in the belief it will keep them healthy.
But at a conference for leading doctors, British scientists said they have found that for healthy people taking aspirin does not significantly reduce the risk of a heart attack.
Read more ....
White Europeans 'Only Evolved 5,500 Years Ago After Food Habits Changed'
Photo: People with pale skin like model Lily Cole may be descended from Europeans who dramatically changed their diets
From The Daily Mail:
People in England may have only developed pale skin within the last 5,500 years, according to new research.
Scientists believe that a sudden change in the diet around that time from hunter-gathering to farming may have led to a dramatic change in skin tone to make up for a lack of vitamin D.
Farmed food is lacking in vitamin D and while humans can produce it when exposed to the ultraviolet light in sunlight darker skin is far less efficient at it.
Read more ....
From The Daily Mail:
People in England may have only developed pale skin within the last 5,500 years, according to new research.
Scientists believe that a sudden change in the diet around that time from hunter-gathering to farming may have led to a dramatic change in skin tone to make up for a lack of vitamin D.
Farmed food is lacking in vitamin D and while humans can produce it when exposed to the ultraviolet light in sunlight darker skin is far less efficient at it.
Read more ....
Photosynthetic Viruses Keep World's Oxygen Levels Up
From New Scientist:
NEXT time you take in a lungful of oxygen, consider this: it was made possible in part by ocean viruses.
The viruses, which infect single-celled algae called cyanobacteria, are hyperefficient photosynthesisers thanks to a unique set of genes.
Previous work had shown that cyanophage viruses have some photosynthesis genes, apparently used to keep the host cyanobacteria on life support during the infection, which otherwise knocks out the cells' basic functions.
Read more ....
India Loses Moon Satellite Links
From The BBC:
All communication links with the only Indian satellite orbiting the Moon have been lost, India's space agency says.
Radio contact with the Chandrayaan-1 spacecraft was lost abruptly early on Saturday, said India's Bangalore-based Space Research Organization (Isro).
The unmanned craft was launched last October in what was billed as a two-year mission of exploration.
The launch was regarded as a major step for India as it seeks to keep pace with other space-faring nations in Asia.
Following its launch from the southern state of Andhra Pradesh, it was hoped the robotic probe would orbit the Moon, compile a 3-D atlas of the lunar surface and map the distribution of elements and minerals.
Read more ....
All communication links with the only Indian satellite orbiting the Moon have been lost, India's space agency says.
Radio contact with the Chandrayaan-1 spacecraft was lost abruptly early on Saturday, said India's Bangalore-based Space Research Organization (Isro).
The unmanned craft was launched last October in what was billed as a two-year mission of exploration.
The launch was regarded as a major step for India as it seeks to keep pace with other space-faring nations in Asia.
Following its launch from the southern state of Andhra Pradesh, it was hoped the robotic probe would orbit the Moon, compile a 3-D atlas of the lunar surface and map the distribution of elements and minerals.
Read more ....
Ancient Skeletons Could Help Solve Mystery Of Rare Disease
Ballyhanna graveyard site at Ballyshannon. Photo from Ask About Ireland
From Independent (Ireland):
TWO ancient skeletons with a rare genetic bone disease unearthed from a medieval Irish graveyard may hold key insights for medical experts.
An archaeologist believes the discovery of the remains -- afflicted by massive bone growths -- could help modern-day clinicians glean more information about that unusual debilitating condition.
There have only been 16 cases of the hereditary bone growth disorder, now known as multiple osteochondromas, identified in ancient remains worldwide. Four of these have been located in Ireland.
Read more ....
Star-Birth Myth 'Busted'
False-colour images of two galaxies, NGC 1566 (left) and NGC 6902 (right), showing their different proportions of very massive stars. Regions with massive O stars show up as white or pink, while less massive B stars appear in blue. NGC 1566 is much richer in O stars than is NGC 6902. The images combine observations of UV emission by NASA's Galaxy Evolution Explorer spacecraft and H-alpha observations made with the Cerro Tololo Inter-American Observatory (CTIO) telescope in Chile. NGC 1566 is 68 million light years away in the southern constellation of Dorado. NGC 6902 is about 33 million light years away in the constellation Sagittarius. (Credit: NASA/JPL-Caltech/JHU)
From Science Daily:
ScienceDaily (Aug. 30, 2009) — An international team of researchers has debunked one of astronomy's long held beliefs about how stars are formed, using a set of galaxies found with CSIRO’s Parkes radio telescope.
When a cloud of interstellar gas collapses to form stars, the stars range from massive to minute.
Since the 1950s astronomers have thought that in a family of new-born stars the ratio of massive stars to lighter ones was always pretty much the same — for instance, that for every star 20 times more massive than the Sun or larger, you’d get 500 stars the mass of the Sun or less.
Read more ....
Dangers In The Deep: 10 Scariest Sea Creatures
From Live Science:
On land during the day, we humans rule. Or at least we're considered top predators, and with our feet on the ground, we're in our element.
In the sea, sans a boat, forget about it. We're too slow, too encumbered with gear, and often too stupid to be much more than prey. What's to worry about down there? Plenty!
Read more ....
NASA Looking To Solve Medium-Lift Conundrum
NASA hopes the Taurus 2 and Falcon 9 rockets will be ready to launch medium-class science missions. Credit: Orbital Sciences and SpaceX
From Spaceflight Now:
Facing a lack of rocket options for medium-class robotic missions, NASA's launch czar said the agency will not need another medium-lift rocket until at least 2014, enough time for new boosters to prove themselves.
William Wrobel, NASA's assistant associate administrator for launch services, said future medium-class missions will most likely fly on Falcon 9 or Taurus 2 rockets now being developed for resupply missions to the International Space Station.
Read more ....
Space Shuttle News Updates -- August 30, 2009
The space shuttle Discovery sits atop Launch Pad 39A during final launch preparations at the Kennedy Space Center in Cape Canaveral, Florida August 24, 2009. Discovery is scheduled for launch later in the day on a mission to the International Space Station. REUTERS/Pierre Ducharme
Astronauts Inspect Discovery Heat Shield -- CBS News
(CBS) The Discovery astronauts conducted an inch-by-inch inspection of the most critical sections of the shuttle's heat shield Saturday, examining the ship's nose cap and wing leading edge panels with a laser scanner on the end of a 50-foot-boom attached to the shuttle's robot arm. No obvious problems stood out, reports CBS News space analyst Bill Harwood.
But it will take engineers several more days to complete the normal (post-Columbia tragedy) assessment of launch imagery, laser scans carried out Saturday, and close-up photos of Discovery's belly during final approach to the International Space Station Sunday evening, before the heat shield is given a clean bill of health.
Read more ....
More News On The Space Shuttle
Shuttle steers closer to space station for hookup -- AP
Shuttle Discovery to Dock with Space Station Today -- WBKO
Shuttle steers closer to space station for hookup -- AP
Space Shuttle's Midnight Launch Dazzles in Photos -- Space.com
'Space rookies' soak it up -- BBC
Dual-Screen Laptop On Sale By Christmas
From The Telegraph:
The world's first truly dual-screen laptop, which will allow computer users to multi-task while on the move, is due to go on sale by the end of the year.
The pioneering PC, known as the Spacebook, is the brainchild of Alaska-based technology firm gScreen.
While growing numbers of office workers – especially in the financial industries – use several desktop monitors to track many programmes and information sources at the same time, no manufacturer has yet released a portable equivalent.
The gScreen Spacebook will boast two 15.4 in screens which can slide away to fill the space of a single screen when the laptop is being stored or transported.
Read more ....
Why The Greenland And Antarctic Ice Sheets Are Not Collapsing
From Watts Up With That:
Global warming alarmists have suggested that the ice sheets of Greenland and Antarctica may collapse, causing disastrous sea level rise. This idea is based on the concept of an ice sheet sliding down an inclined plane on a base lubricated by meltwater, which is itself increasing because of global warming.
In reality the Greenland and Antarctic ice sheets occupy deep basins, and cannot slide down a plane. Furthermore glacial flow depends on stress (including the important yield stress) as well as temperature, and much of the ice sheets are well below melting point.
Read more ....
Swine Flu Program Could Be Largest Vaccination Effort In Human History
From Popular Science:
With the White House Council of Advisors on Science and Technology estimating that this winter's swine flu outbreak could lead to 30,000 to 90,000 deaths in the US (on top of the usual 30,000 deaths that occur from seasonal flu), the government has ramped up its effort to vaccinate as many Americans as possible against H1N1. In fact, the vaccination effort is so large, it may constitute the largest vaccination program in human history.
Read more ....
Saturday, August 29, 2009
Mysterious Glaciers That Grew When Asia Heated Up
BYU professor Summer Rupper doing field work with Switzerland's Gornergrat glacier. Her newest study details how a group of Himalayan glaciers grew despite a significant rise in temperatures. (Credit: Image courtesy of Brigham Young University)
From Science Daily:
ScienceDaily (Aug. 29, 2009) — Ice, when heated, is supposed to melt.
That’s why a collection of glaciers in the Southeast Himalayas stymies those who know what they did 9,000 years ago. While most other Central Asian glaciers retreated under hotter summer temperatures, this group of glaciers advanced from one to six kilometers.
A new study by BYU geologist Summer Rupper pieces together the chain of events surrounding the unexpected glacial growth.
Read more ....
Is Quantum Mechanics Selectively Erasing Our Memory?
Entropy At Work: One liquid diffusing into another is an
example of an increase in entropy, or randomness.
example of an increase in entropy, or randomness.
From Popular Science:
In a paper published last week, MIT physicist Lorenzo Maccone hypothesizes that, yes, quantum physics is messing with our minds. The laws of physics work just as well if time is running forwards or backwards. But we all seem to experience time running in only one direction, and in the same direction as everyone else -- a mystery of physics that's yet to be solved.
Read more ....
Man-Made Volcanoes May Cool Earth
From Times Online:
THE Royal Society is backing research into simulated volcanic eruptions, spraying millions of tons of dust into the air, in an attempt to stave off climate change.
The society will this week call for a global programme of studies into geo-engineering — the manipulation of the Earth’s climate to counteract global warming — as the world struggles to cut greenhouse gas emissions.
It will suggest in a report that pouring sulphur-based particles into the upper atmosphere could be one of the few options available to humanity to keep the world cool.
Read more ....
Stevenage: The Final Frontier In Space Technology
The rocket and fuel tanks of the Lisa Pathfinder satellite, which will be launched in 2011 and pave the way for new scientific experiments on gravitational wave detection and black holes.
From The Daily Mail:
You might think Nasa is the only pioneer of space technology, but this £200m satellite (below) is being built not in Houston but at a sleepy industrial estate in Hertfordshire.
It's so tantalisingly close, this strange octagonal aluminium box with its shimmery array of circuitry. I see wires coated in silver, connectors of gold, and parts so delicate that even in this temperature-and humidity-controlled, dust-free environment they have to be protected with pink translucent plastic bags.
In two years' time, this box - the inside of a satellite - will be blasted four times further out into space than any human has ever been.
Read more ....
A Latino Astronaut's Remarkable Journey
Photo: Astronaut Jose Hernandez is an American-born son of immigrants from Michoacan, Mexico.
From CNN:
(CNN) -- For astronaut Jose Hernandez, his first space flight, scheduled to be aboard the space shuttle Discovery, marks a remarkable journey from the farm fields of California to the skies.
Hernandez, an American-born son of immigrants from Michoacan, Mexico, is getting plenty of attention at home and abroad for his journey from working the fields to operating some of the most advanced mechanics on the space shuttle.
Read more ....
From CNN:
(CNN) -- For astronaut Jose Hernandez, his first space flight, scheduled to be aboard the space shuttle Discovery, marks a remarkable journey from the farm fields of California to the skies.
Hernandez, an American-born son of immigrants from Michoacan, Mexico, is getting plenty of attention at home and abroad for his journey from working the fields to operating some of the most advanced mechanics on the space shuttle.
Read more ....
Why Obama's Dog Has Curly Hair
From Science Daily:
ScienceDaily (Aug. 28, 2009) — University of Utah researchers used data from Portuguese water dogs – the breed of President Barack Obama's dog Bo – to help find a gene that gives some dogs curly hair and others long, wavy hair.
It was part of a National Institutes of Health (NIH) study – published online Thursday, Aug. 27 by the journal Science – showing that variations in only three genes account for the seven major types of coat seen in purebred dogs. The findings also point the way toward understanding complex human diseases caused by multiple genes.
Read more ....
Microbe Metabolism Harnessed to Produce Fuel
Joint BioEnergy Institute (JBEI) Director Jay Keasling with Rajit Sapar in lab at JBEI with beaker of cellulose sludge. Credit: JBEI//Jay Keasling
From Live Science:
Microbes such as the yeast we commonly use in baking bread and fermenting beer are now being engineered to produce the next generation of biofuels. Jay Keasling, a professor of chemical engineering at the University of California, Berkeley, is leading a team of scientists in an effort to manipulate the chemistry within bacteria so they will produce fuel from sugar.
At the Joint BioEnergy Institute (JBEI), one of three research centers set up by the Department of Energy for the research and development of biofuels, Keasling is utilizing synthetic biology techniques involving chemistry, genetic engineering and molecular biology. Foundational work being done at the Synthetic Biology Engineering Research Center (SynBERC), where Keasling is director, will underpin the research at JBEI. SynBERC is funded by the National Science Foundation.
Read more ....
Sony Sides With Google in ‘Library of Future’ Settlement
From Epicenter/Wired:
n the battle to win readers for the books of the future, Sony has sided with Google over a controversial, proposed copyright lawsuit settlement that lets Google build out the library and bookstore of the future.
That pits Sony and Google against Yahoo, Microsoft and Amazon, all of which have allied in opposition to the settlement. (See Wired.com’s Google Book Search FAQ to learn more.)
Why Do Muslims Fast During Ramadan?
Muslims pray before they break their fast in a mosque during the Ramadan month in Kabul, Afghanistan. Mohammad Kheirkhah / UPI / Landov
From Time Magazine:
Like more than a billion fellow Muslims around the world, Sulley Muntari began the monthlong fasting ritual of Ramadan on Aug. 22. Abstaining from food or drink during daylight hours is challenging enough for the average person, but for the Ghana-born Muntari, a professional soccer player with Italy's Serie A team Inter Milan, running more than six miles per game on an empty stomach might have proved to be too much. In his first match after the start of Ramadan, the midfielder was removed from the game after just half an hour of play.
Read more ....
Shuttle Lights Up Sky With Spectacular Launch
Space shuttle Discovery roars to life and blasts off on space station resupply mission.
(Credit: NASA TV)
(Credit: NASA TV)
From CNET:
KENNEDY SPACE CENTER, Fla.--Running four days late, the shuttle Discovery roared to life and shot into space overnight Friday, lighting up the night sky with a rush of fire as it set off on a 13-day mission to deliver 7.5 tons of supplies and equipment to the International Space Station.
With commander Frederick "Rick" Sturckow and pilot Kevin Ford monitoring the computer-controlled ascent, Discovery's twin solid-fuel boosters ignited at 11:59 p.m. EDT, kick-starting the crew's eight-and-a-half-minute ride to orbit with a rush of 5,000-degree flame.
Read more ....
Entangled Light, Quantum Money
Photo: Two Nodes of a quantum network that Caltech researchers created by halting entangled photons within two ensembles of cesium atoms housed in an ultrahigh-vacuum system. Temporarily storing entanglement provides a basis for quantum data storage, which might be useful for various applications, including quantum cryptography.
Credit: Nara Cavalcanti
From Technology Review:
A breakthrough explores the challenges--and suggests the financial possibilities--of creating quantum networks.
In recent years, the Austrian physicist Anton Zeilinger has bounced entangled photons off orbiting satellites and made 60-atom fullerene molecules exist in quantum superposition--essentially, as a smear of all their possible positions and energy states across local space-time. Now he hopes to try the same stunt with bacteria hundreds of times larger. Meanwhile, Hans Mooij of the Delft University of Technology, with Seth Lloyd, who directs MIT's Center for Extreme Quantum Information Theory, has created quantum states (which occur when particles or systems of particles are superpositioned) on scales far above the quantum level by constructing a superconducting loop, visible to the human eye, that carries a supercurrent whose electrons run simultaneously clockwise and counterclockwise, thereby serving as a quantum computing circuit.
Read more ....
Credit: Nara Cavalcanti
From Technology Review:
A breakthrough explores the challenges--and suggests the financial possibilities--of creating quantum networks.
In recent years, the Austrian physicist Anton Zeilinger has bounced entangled photons off orbiting satellites and made 60-atom fullerene molecules exist in quantum superposition--essentially, as a smear of all their possible positions and energy states across local space-time. Now he hopes to try the same stunt with bacteria hundreds of times larger. Meanwhile, Hans Mooij of the Delft University of Technology, with Seth Lloyd, who directs MIT's Center for Extreme Quantum Information Theory, has created quantum states (which occur when particles or systems of particles are superpositioned) on scales far above the quantum level by constructing a superconducting loop, visible to the human eye, that carries a supercurrent whose electrons run simultaneously clockwise and counterclockwise, thereby serving as a quantum computing circuit.
Read more ....
What Country Has More English Speakers Than Any Other Country?
Preaching to the converted: Li Yang, founder of the Crazy English movement, lectures a crowd of students. SEAN GALLAGHER
Crazy English: How China's Language Teachers Became Big Celebrities -- The Independent
This year it will be announced that China now has more English speakers than any other country in the world. And such is the demand for their services that top teachers have become big stars.
"Where are you from? Do you speak English?" It's a familiar phrase near the Forbidden City in Beijing, or along the capital's Nanjing Road, as Chinese people try a standard opening gambit to spark up a conversation with a foreigner. Many visitors baulk at being approached so baldly, and are worried that it could be a scam. Very occasionally it is a con – and tourists should be wary when some nice young people offer to bring them to a tea house – but mostly the youngsters are desperate for access to real live Anglophones who can help them improve their conversational English.
Read more ....
Friday, August 28, 2009
Small Fluctuations In Solar Activity, Large Influence On Climate
Image: Recently published research shows how newly discovered interactions between the Sun and the Earth affect our climate. (Credit: UCAR)
From Science Daily:
Science Daily (Aug. 28, 2009) — Subtle connections between the 11-year solar cycle, the stratosphere, and the tropical Pacific Ocean work in sync to generate periodic weather patterns that affect much of the globe, according to research appearing this week in the journal Science. The study can help scientists get an edge on eventually predicting the intensity of certain climate phenomena, such as the Indian monsoon and tropical Pacific rainfall, years in advance.
Read more ....
From Science Daily:
Science Daily (Aug. 28, 2009) — Subtle connections between the 11-year solar cycle, the stratosphere, and the tropical Pacific Ocean work in sync to generate periodic weather patterns that affect much of the globe, according to research appearing this week in the journal Science. The study can help scientists get an edge on eventually predicting the intensity of certain climate phenomena, such as the Indian monsoon and tropical Pacific rainfall, years in advance.
Read more ....
New Theory For Why We Cry
Do we cry because it makes us feel good, or because it cleanses us of stressful chemicals? Or, as Oren Hasson now theorizes, is a good cry just a way to get attention and gain acceptance? Image credit: stockxpert
From Live Science:
We shed tears when in pain, but what purpose does crying have?
A scientist now proposes a new theory for why crying evolved — tears can act as handicaps to show you have lowered your defenses.
"Crying is a highly evolved behavior," said researcher Oren Hasson, an evolutionary biologist at Tel Aviv University in Israel. "My analysis suggests that by blurring vision, tears lower defenses and reliably function as signals of submission, a cry for help, and even in a mutual display of attachment and as a group display of cohesion."
Read more ....
NASA’s Most Awesomely Weird Mission Patches
From Wired Science:
Perhaps the best thing about NASA’s military provenance is that the agency picked up the armed services’ habit of making patches.
We’ve long loved the Most Awesomely Bad Military Patches series that our sister blog, Danger Room, runs. Then, earlier this week, space collectors bid up the accidentally limited edition Stephen Colbert treadmill patch to more than $175 on eBay.
Read more ....
Watermelon Juice - Next Source of Renewable Energy
From Reuters:
Hundreds of thousands of tons of watermelons are tossed every year because they aren't good enough for market. A new study finds that the juice from these watermelons could easily be used to create the biofuel ethanol and other helpful products.
According to a new study to be published in the journal Biotechnology for Biofuels, 20% of the watermelon crop doesn't go to market every year due to imperfections, bad spots, or weird shapes. These watermelons are left in the field and then ploughed right back into the ground. According to the authors of the study (Benny Bruton and Vincent Russo from the USDA-ARS, South Central Agricultural Research Laboratory, and Wayne Fish), these watermelons could be used to produce the biofuel ethanol.
Read more ....
Funding "Exciting" Space Research
From The Atlantic:
It's not easy being a NASA researcher. You can spend years of your professional career working on a particular project, only to have it abruptly cancelled because a new Administration takes office or ... well, the country just shifts its sights and priorities. And your particular project no longer fits on the list. It's happened so many times over the agency's 50-year history that it's almost predictable. And the reasons for those shifts are numerous, and sometimes complex.
Read more ....
NASA Fuels Space Shuttle For Another Launch Attempt
The space shuttle Discovery is shown on Launch Pad 39A after mission managers scrubbed a launch attempt because of bad weather at the Kennedy Space Center in Cape Canaveral, Florida August 25, 2009. REUTERS/Scott Audette
From Reuters:
CAPE CANAVERAL, Florida (Reuters) - NASA filled space shuttle Discovery's fuel tank on Friday for a midnight blastoff on a 13-day flight to deliver new laboratory equipment, supplies and spare parts to the International Space Station.
The shuttle and seven astronauts are scheduled for launch at 11:59 p.m. EDT (0359 GMT on Saturday) from the Kennedy Space Center in Florida. Meteorologists predicted a 60 percent chance conditions would be suitable for flight.
Read more ....
Viking Silver Treasure Hoard Worth £1m Unearthed After 1,000 Years
A king's ransom: Silver jewellery buried more than a millennium ago
will now go on display in London and Yorkshire
will now go on display in London and Yorkshire
From The Daily Mail:
An impressive Viking hoard of jewellery has made a father and son metal-detector team £1m, after being bought by two British museums.
The find, which is the 'largest and most important' since 1840, was found in a field in Harrogate, North Yorkshire in January 2007. It had been buried there for more than 1,000 years.
Valued at £1,082,000, the hoard was purchased by the British Museum and the York Museum Trust after two years of fundraising.
Read more ....
Sunspots Linked To Pacific Rain
From The BBC:
A study has shown how sunspots could affect climate in the Pacific.
Writing in the journal Science, the international team detailed how the 11-year sunspot cycle might influence the amount of rain falling on the ocean.
It is hoped the findings will lead to better models for regional climate predictions.
The authors emphasised the findings "cannot be used to explain recent global warming because of the trend over the past 30 years".
Read more ....
A study has shown how sunspots could affect climate in the Pacific.
Writing in the journal Science, the international team detailed how the 11-year sunspot cycle might influence the amount of rain falling on the ocean.
It is hoped the findings will lead to better models for regional climate predictions.
The authors emphasised the findings "cannot be used to explain recent global warming because of the trend over the past 30 years".
Read more ....
Scientists Find 'Great Pacific Ocean Garbage Patch'
SEAPLEX researchers spotted a large net tangled with plastic in the "garbage patch." (Credit: Scripps Institution of Oceanography)
From Science Daily:
ScienceDaily (Aug. 28, 2009) — Scientists have just completed an unprecedented journey into the vast and little-explored "Great Pacific Ocean Garbage Patch."
On the Scripps Environmental Accumulation of Plastic Expedition (SEAPLEX), researchers got the first detailed view of plastic debris floating in a remote ocean region.
It wasn't a pretty sight.
Read more ....
More Wind Power: Not So Simple
From Live Science:
By 2030 the Department of Energy wants 20 percent of electricity produced in the United States to be generated by wind. Wind currently generates less than 1 percent of the country's electricity, so the increase will require the number of new wind turbine installations to jump from 2,000 to 7,000 per year, according to the DOE.
Read more ....
U.S. Senate Bill Will Give Control Of The Internet To The White House In The Event Of A National Security Emergency
Bill Would Give President Emergency Control Of Internet -- CNET
Internet companies and civil liberties groups were alarmed this spring when a U.S. Senate bill proposed handing the White House the power to disconnect private-sector computers from the Internet.
They're not much happier about a revised version that aides to Sen. Jay Rockefeller, a West Virginia Democrat, have spent months drafting behind closed doors. CNET News has obtained a copy of the 55-page draft of S.773 (excerpt), which still appears to permit the president to seize temporary control of private-sector networks during a so-called cybersecurity emergency.
Read more ....
My Comment: If this does not give you a cold chill down your spine .... nothing will.
In my case, I am dependent on the web for my information and communication. Any interruption will be catastrophic to me professionally as well as personally.
But I know that in the event of a national security emergency .... my concerns will be thrown out the window. I can easily the Government simply cutting off the web to the public and/or severely limiting its use. China already has some form of control over the web for its citizens, and I am sure that Iran wished it had a better handle on its access to the web. For the U.S. .... this control will become fact within a year.
Milk Was The World's First Superfood
From The Telegraph
Milk was the world’s first “superfood”, claim scientists, who believe that it helped prehistoric families inhabit harsh northern climes.
British researchers believe that humans first evolved into milk drinkers 7,500 years ago in the Balkans and used the ability to populate northern Europe, including Britain.
At the time, the north was very inhospitable, being cold and damp and covered in forests. Settlers would die if a crop failed.
Read more ....
Apple's Snow Leopard Reviewed
From The Guardian:
The Guardian's comprehensive review of Apple's new Snow Leopard OS.
Mac OS X 10.6 – aka Snow Leopard – will be released tomorrow. The truth is that it doesn't contain hundreds of big new features to entice you into upgrading – but it does have one that everyone will appreciate: speed.
Snow Leopard is, in fact, blisteringly fast. Booting is quicker, waking from sleep is quicker, and, of course, launching applications is quicker than if you're using Leopard.
Read more ....
Physicists Successfully Predict Stock Exchange Plunge
From New Scientist:
WITH 20/20 hindsight, financial crashes seem inevitable, yet we never see them coming. Now a team of physicists and financiers have bucked the trend by successfully predicting a steep fall in the Shanghai Stock Exchange.
Their model, which employs concepts from the physics of complex atomic systems, was developed by Didier Sornette of the Financial Crisis Observatory in Zurich, Switzerland, and Wei-Xing Zhou of the East China University of Science and Technology in Shanghai. The idea is that if a plot of the logarithm of the market's value over time deviates upwards from a straight line, it's a clear warning that people are investing simply because the market is rising rather than paying heed to the intrinsic worth of companies. By projecting the trend, the team can predict when growth will become unsustainable and the market will crash.
Read more ....
IBM Scientists Take First Close-Up Image Of A Single Molecule
From Popular Science:
As part of a greater effort to someday build computing elements at an atomic scale, IBM scientists in Zurich have taken the highest-resolution image ever of an individual molecule using non-contact atomic force microscopy. Performed in an ultrahigh vacuum at 5 degrees Kelvin, scientists were able to "to look through the electron cloud and see the atomic backbone of an individual molecule for the first time," a feat necessary for the further development of atomic scale electronic building blocks.
Read more ....
Europe Looks To Buy Soyuz Craft
From The BBC:
Europe is seeking to maintain flight opportunities for its astronauts by buying Soyuz spacecraft from Russia.
The European Space Agency (Esa) has asked Moscow if it is possible to increase the production of the craft from four to five a year.
Esa could then buy its own vehicle, perhaps with the Canadians who are also looking for more seat opportunities.
The expected retirement of US shuttles in 2010/11 means fewer humans will be going into space in the coming years.
Read more ....
‘Peak Oil’ Is A Waste Of Energy
From The New York Times:
REMEMBER “peak oil”? It’s the theory that geological scarcity will at some point make it impossible for global petroleum production to avoid falling, heralding the end of the oil age and, potentially, economic catastrophe. Well, just when we thought that the collapse in oil prices since last summer had put an end to such talk, along comes Fatih Birol, the top economist at the International Energy Agency, to insist that we’ll reach the peak moment in 10 years, a decade sooner than most previous predictions (although a few ardent pessimists believe the moment of no return has already come and gone).
Read more ....
REMEMBER “peak oil”? It’s the theory that geological scarcity will at some point make it impossible for global petroleum production to avoid falling, heralding the end of the oil age and, potentially, economic catastrophe. Well, just when we thought that the collapse in oil prices since last summer had put an end to such talk, along comes Fatih Birol, the top economist at the International Energy Agency, to insist that we’ll reach the peak moment in 10 years, a decade sooner than most previous predictions (although a few ardent pessimists believe the moment of no return has already come and gone).
Read more ....
Thursday, August 27, 2009
Extrasolar Hot Jupiter: The Planet That 'Shouldn’t Exist'
Artist's impression shows a gas-giant exoplanet transiting across the face of its star.
(Credit: ESA/C. Carreau)
(Credit: ESA/C. Carreau)
From Science Daily:
ScienceDaily (Aug. 27, 2009) — A planet has been discovered with ten times the mass of Jupiter, but which orbits its star in less than one Earth-day.
The discovery, reported in this week’s Nature by Coel Hellier, of Keele University in the UK, and colleagues, poses a challenge to our understanding of tidal interactions in planetary systems.
Read more ....
Rat Race: New Evidence That Running Is Addictive
Serious runners know the feeling, a sense of never-ending endurance that comes on a long run. But is it good for you? The sensation may be addictive, the new study finds. Image credit: Stockxpert
From Live Science:
Just as there is the endorphin rush of a "runner's high," there can also be the valley of despair when something prevents avid runners from getting their daily fix of miles.
Now, researchers at Tufts University may have confirmed this addiction by showing that an intense running regimen in rats can release brain chemicals that mimic the same sense of euphoria as opiate use. They propose that moderate exercise could be a "substitute drug" for human heroin and morphine addicts.
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NASA Aborts Critical Rocket Test
From Technology Review:
The first full-scale test of the booster for NASA's Ares I rocket was called off because of a power failure.
Today NASA was supposed to conduct the first full-scale test of the motor for the first stage of its future space rocket, Ares I. The test, at NASA partner Alliant Techsystems, was in Utah at 3:00 P.M. EST and was intended to last two minutes. The goal was to obtain data on thrust, roll control, acoustics, and vibrations to aid engineers in designing Ares I. But the test was scrubbed 20 seconds before ignition of the 154-foot motor, which was anchored to the ground horizontally. The problem: failure of a power unit that drives hydraulic tilt controls for the rocket's nozzle, according to a local report. The static firing test of the motor has not yet been rescheduled.
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Weather Supercomputer Used To Predict Climate Change Is One Of Britain's Worst Polluters
From The Daily Mail:
The Met Office has caused a storm of controversy after it was revealed their £30million supercomputer designed to predict climate change is one of Britain's worst polluters.
The massive machine - the UK's most powerful computer with a whopping 15 million megabytes of memory - was installed in the Met Office's headquarters in Exeter, Devon.
It is capable of 1,000 billion calculations every second to feed data to 400 scientists and uses 1.2 megawatts of energy to run - enough to power more than 1,000 homes.
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Climate Change 'To Cost More Than £300 Billion'
From The Telegraph:
The world will have to spend £300 billion, three times as much as previously thought, adapting to the effects of climate change, scientists have said.
The UN originally said it would cost just £25 to £105 billion ($40-170 billion), or the cost of about three Olympic Games per year, from 2030 to pay for the sea defences, increase in deaths and damage to infrastructure caused by global warming.
However a new study by leading scientific body the International Institute for Environment and Development and the Grantham Institute for Climate Change at Imperial College London estimated it will cost more than triple that amount per annum.
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Laughing Gas Is Biggest Threat To Ozone
From The Telegraph:
It's no joke - laughing gas is now the biggest threat to the Earth's ozone layer, scientists have said.
Nitrous oxide, better known as the dental anaesthetic "laughing gas", has replaced CFCs as the most potent destroyer of ozone in the upper atmosphere, a study has shown.
Unlike CFCs (chlorofluorocarbons), once extensively used in refrigerators, emissions of the gas are not limited by any international agreement.
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It's no joke - laughing gas is now the biggest threat to the Earth's ozone layer, scientists have said.
Nitrous oxide, better known as the dental anaesthetic "laughing gas", has replaced CFCs as the most potent destroyer of ozone in the upper atmosphere, a study has shown.
Unlike CFCs (chlorofluorocarbons), once extensively used in refrigerators, emissions of the gas are not limited by any international agreement.
Read more ....
Girls Are Primed To Fear Spiders
From New Scientist:
The sight of eight long black legs scuttling over the floor makes some people scream and run – and women are four times more likely to take fright than men. Now a study suggests that females are genetically predisposed to develop fears for potentially dangerous animals.
David Rakison, a developmental psychologist at Carnegie Mellon University in Pittsburgh, Pennsylvania, found that baby girls only 11 months old rapidly start to associate pictures of spiders with fear. Baby boys remain blithely indifferent to this connection.
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Sunspots Stir Oceans
From Nature News:
Variations in the Sun's brightness may have a big role in Pacific precipitation.
Computer simulations are showing how tiny variations in the Sun's brightness can have a big influence on weather above the Pacific Ocean.
The simulations match observations that show precipitation in the eastern Pacific varies with the Sun's brightness over an 11-year cycle. However, the model does not indicate a relationship between solar activity and the rise in global temperature over the past century.
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