Saturday, October 17, 2009

LHC Gets Colder Than Deep Space

The giant Atlas detector will search for hints of the elusive Higgs boson particle

From The BBC:

The Large Hadron Collider (LHC) experiment has once again become one of the coldest places in the Universe.

All eight sectors of the LHC have now been cooled to their operating temperature of 1.9 kelvin (-271C; -456F) - colder than deep space.

The large magnets that bend particle beams around the LHC are kept at this frigid temperature using liquid helium.

Read more ....

How Net Activity Boosted 'Paranormal Activity'

From San Francisco Chronicle:

Fueled by a grassroots Internet campaign that included a "Tweet Your Scream" promotion using Twitter, a low-budget horror film titled "Paranormal Activity" has become a surprise box office hit.

Meanwhile, a more anticipated movie, "Where the Wild Things Are," gained 871,000 fans on its Facebook page last week and now has more than 1.5 million eager devotees even before the film hits screens today.

And the official Twitter account promoting next month's sequel to the romantic vampire movie "Twilight" went live Monday and bit into more than 79,000 followers by Thursday. Its Facebook page already had 3.8 million fans.

Read more ....

Cheetah, Gecko And Spiders Inspire Robotic Designs


From Gadget Lab:

A cheetah can run faster than any other animal. A gecko’s feet can stick to almost any surface without using liquids or surface tension. And some roaches scurry at nearly 50 times their body length in one second, which, scaled up to human levels, can be around 200 miles an hour.

The wonders of the animal kingdom are not just for fans of National Geographic. Robotic designer Sangbae Kim, a professor at the Massachusetts Institute of Technology, is trying to understand how he can take some of the mechanisms animals use and replicate them in robots.

Read more ....

Stormy Times For Cloud Computing?

From Times Online:

Concern over data loss and legal uncertainty may delay the development of cloud computing, experts warned on Monday.

Cloud computing involves the storage of data online, rather than on locally networked servers or machines. The best known services are provided by Google and Microsoft.

Last weekend, Microsoft in the United States was forced to admit that it had irretrievably lost all online data belonging to owners of the T-Mobile Sidekick, a smartphone that backs up its data online, in the cloud.

Read more ....

British Men Have More Stamina In Bed Than Foreigners, Study Finds

British men last longer in bed than their foreign counterparts, a study has found
Photo: GETTY IMAGES


From The Telegraph:

British men have more stamina between the sheets than their foreign counterparts – lasting just 10 minutes, a study has found.

Researchers in Holland measured the sexual performance of nearly 500 men from five countries against the clock.

They found that British men had sex for 10 minutes on average before reaching an orgasm.

Read more ....

Andromeda Galaxy Captured In Crystal Clear Detail By Nasa's Swift Satellite

The Swift image has revealed new features not seen in previous composites of M31 (pictured)

From The Daily Mail:

Nasa's Swift satellite has captured the highest-resolution view of our neighbouring galaxy Andromeda.

Also known as M31, it contains an incredible one trillion stars and is the largest galaxy in our small section of the Universe.

Swift, which usually searches for distant cosmic explosions, turned its incredibly powerful ultraviolet telescope onto our celestial neighbour to achieve the shot.

Read more ....

Friday, October 16, 2009

Giant Impact Near India -- Not Mexico -- May Have Doomed Dinosaurs

Three-dimensional reconstruction of the submerged Shiva crater (~500 km diameter) at the Mumbai Offshore Basin, western shelf of India from different cross-sectional and geophysical data. The overlying 4.3-mile-tick Cenozoic strata and water column were removed to show the morphology of the crater. (Credit: Image courtesy of Geological Society Of America)

From Science Daily:

Science Daily (Oct. 15, 2009) — A mysterious basin off the coast of India could be the largest, multi-ringed impact crater the world has ever seen. And if a new study is right, it may have been responsible for killing the dinosaurs off 65 million years ago.

Read more ....

Monkey Drumming Suggests The Origin Of Music

An illustration of a rhesus macaque drumming with cage doors.
Credit: K. Lamberty, PNAS.


From Live Science:

When monkeys drum, they activate brain networks linked with communication, new findings that suggest a common origin of primate vocal and nonvocal communication systems and shed light on the origins of language and music.

In the wild, monkeys known as macaques drum by shaking branches or thumping on dead logs. Similar behavior has been seen in non-human primates — for instance, gorillas beat their chests and clap their hands, while chimpanzees drum on tree buttresses.

Read more ....

Atlantic Salmon Shortage's Ripple Effect


Watch CBS News Videos Online

From CBS News:

(CBS) In Chile's northern Patagonia, in channels sheltered by the Andes Mountains, the salmon are dying, CBS News Correspondent Mark Strassmann reports.

At fish farms, divers check for signs of a waterborne virus called ISA: Infectious Salmon Anemia.

Harmless to humans and deadly to Atlantic salmon, it's the mostly popular fresh fish to eat for American consumers.

ISA has killed millions of salmon in Chile.

Read more ....

Rocking On With Hot Rocks Geothermal Energy

From NOVA:

The world is getting hotter. This is because of the increasing concentration of greenhouse gases in the atmosphere, due mainly to our excessive burning of fossil fuels. We burn them for the energy that is needed increasingly in our daily life – to drive to school, cool ourselves on hot summer days, blow-dry our hair and listen to our music. The resulting greenhouse gases trap radiation from the sun, preventing it from escaping back into space, causing the planet’s temperature to rise. But not all of the planet’s heat comes from the Sun; some of it is within the Earth; and rather than causing global warming it could help to wean us off fossil fuels.

This heat, geothermal energy, lies in abundance beneath our feet. If the energy stored in hot rocks inside the Earth could be tapped and used instead of fossil fuels, it could help to reduce the threat of climate change.

Read more ....

20 Years After The Bay Area Quake: Are We Better Prepared?

Photo: Repair crews in Oakland, Calif., examine damage to the Cypress Structure during the 1989 San Francisco earthquake. Dave Bartruff / Corbis

From Time Magazine:

The San Francisco Giants and the Oakland Athletics were just about to start Game 3 of the 1989 World Series on Oct. 17 when the shaking began. ABC play-by-play announcer Al Michaels managed to tell viewers, "We're having an earth—" before the signal went dead. The temblor was brief — just 15 seconds — but the damage caused by the 6.9-magnitude quake was impressive. It killed 63 people, injured thousands and caused $7 billion worth of damage throughout California's Bay Area, including major destruction to the Oakland Bay Bridge. "It was a good sized shock," says Peter Yanev, chairman of Risk Solutions International and the author of Peace of Mind in Earthquake Country.

Read more ....

YouTube’s Bandwidth Bill Is Zero. Welcome To The New Net

From Epicenter:

YouTube may pay less to be online than you do, a new report on internet connectivity suggests, calling into question a recent analysis arguing Google’s popular video service is bleeding money and demonstrating how the internet has continued to morph to fit user’s behavior.

In fact, with YouTube’s help, Google is now responsible for at least 6 percent of the internet’s traffic, and likely more — and may not be paying an ISP at all to serve up all that content and attached ads.

Read more ....

Are Online Currencies Striking Gold?

Without the gold standard, argues consultant Dave Birch, pounds are no more real than World of Warcraft gold. Photograph: Getty Images

From The Guardian:

Money. The stuff that makes the world go round. Every day we earn it, spend it, exchange it and lose it. But you won't find any Linden dollars, Eve ISK or Facebook credits down the back of the couch.

Virtual currencies like these are used for transactions in online worlds and social networking sites. While real-world currencies are on the slide, many virtual ones are going from strength to strength. In the second quarter of the year the equivalent of $144m (£91m) was traded on the LindeX, the official currency exchange of Second Life, where residents buy and sell Linden dollars for their US counterpart – a 20% increase on the previous quarter, while the US economy shrank by 1%. Trading activity increased by 6% in the last quarter of 2008.

Read more ....

Carbon Dioxide 'May Improve Taste Of Champagne'

It's all in the fizz-sensing cells found in the tongue Photo: GETTY

From The Telegraph:

Carbon dioxide in champagne bubbles may enhance the taste of the drink, scientists revealed today.

A team headed by Charles Zuker, a neuroscientist at Columbia University, found that taste-receptor cells in the tongue respond to carbon dioxide (CO2), the gas that gives sparkling drinks their fizz.

The work showed for the first time that the tongue's fizz-sensing cells are the same taste-receptor cells that detect sourness.

Read more ....

Seamlessly Melding Man And Machine

Image: Living interface: Muscle cells (shown here) are grown on a biological scaffold. Severed nerves remaining from the lost limb connect to the muscle cells in the interface, which transmits electrical signals that can be used to control the artificial arm. Credit: Paul Cederna

From Technology Review:

Tiny implants that connect to nerve cells could make it easier to control prosthetic limbs.

A novel implant seeded with muscle cells could better integrate prosthetic limbs with the body, allowing amputees greater control over robotic appendages. The construct, developed at the University of Michigan, consists of tiny cups, made from an electrically conductive polymer, that fit on nerve endings and attract the severed nerves. Electrical signals coming from the nerve can then be translated and used to move the limb.

Read more ....

Throwable Robot And Remote-Controlled Mini-Helicopter Unveiled As Latest Battlefield Surveillance Technology

Eye in the sky: The lightweight helicopter has four cameras and can hover over enemy positions giving the operator real-time intelligence

From The Daily Mail:

Soldiers on the battlefield could soon benefit from new state-of-the-art surveillance equipment that can remotely pinpoint snipers, ambushes and explosive devices.

A throwable wheeled robot and a remote-controlled helicopter were both unveiled at a demonstration at the Defence and Equipment Support at Abbey Wood, near Bristol.

Read more ....

New Israeli Battery Provides Thousands Of Hours Of Power

Photo: Prof. Yair Ein-Eli in his Technion lab, where he invented a battery that is potentially as eco-friendly as sand. Photo: Technion

From Jerusalem Post:

A new kind of portable electrochemical battery that can produce thousands of hours of power - and soon replace the expensive regular or rechargeable batteries in hearing aids and sensors and eventually in cellphones, laptop computers and even electric cars - has been developed at Haifa's Technion-Israel Institute of Technology.

Read more ....

'Magnetricity' Observed And Measured For First Time

The magnetic equivalent of electricity in a 'spin ice' material: atom sized north and south poles in spin ice drift in opposite directions when a magnetic field is applied. (Credit: UCL/LCN)

From Science Daily:

Science Daily (Oct. 15, 2009) — A magnetic charge can behave and interact just like an electric charge in some materials, according to new research led by the London Centre for Nanotechnology (LCN).

The findings could lead to a reassessment of current magnetism theories, as well as significant technological advances.

Read more ....

Study: Tingle of Carbonation Is Tasty, Too


From Live Science:

Fizzy beverages don't just tickle the tongue. They also rev up taste buds that can detect the drink's bubble-inducing carbon dioxide.

Though this discovery was made in mice, researchers say a rodent's sense of taste is similar to ours.

When a person, or mouse, devours a snack or downs a beverage, taste receptor cells on the tongue (which are clustered into taste buds) detect certain molecules in that food or drink. The receptor cells then send a message to the part of the brain involved in tasting.

Read more ....

A Swim Through The Ocean's Future

As ocean water becomes more acidic, corals and shellfish must spend more energy to make their calcium carbonate shells. Photos courtesy of NOAA Pacific Islands Fisheries Science Center Coral Reef Ecosystem Division, Photo by Benjamin Richards

From The Smithsonian:

Can a remote, geologically weird island in the South Pacific forecast the fate of coral reefs?

I drop the dinghy’s anchor below the red-streaked cliffs of Maug. The uninhabited island group is among the most remote of the Mariana Islands, which are territories of the United States in the Western Pacific. Maug's three steep, parentheses-shaped islands are the top of an underwater volcano.

Read more ....

Mystery Space "Ribbon" Found at Solar System's Edge



From National Geographic:

In a discovery that took astronomers by surprise, the first full-sky map of the solar system's edge—more than 9 billion miles (15 billion kilometers) away—has revealed a bright "ribbon" of atoms called ENAs.

The solar system is surrounded by a protective "bubble" called the heliosphere.

Read more ....

Tiny Moon Feeds Largest Ring Around Saturn

This artist's illustration shows a nearly invisible ring around Saturn – the largest of the giant planet's many rings. It was discovered by NASA's Spitzer Space Telescope. Credit: NASA/JPL-Caltech/Keck

From The Cosmos:

PARIS: Stunned astronomers have discovered a new mega-ring around Saturn and believe its genesis is a small, distant moon.

Phoebe, a Saturnian satellite measuring only 214 km across, probably provides the record-breaking tenuous circle of dusty and icy debris, they report today in the British journal Nature.

The largest ring identified so far in the Solar System, the circle starts about six million km from Saturn and extends outwardly by another 12 million km, within the orbit of Phoebe.

Read more ....

Banana Marks Seed Bank Milestone

From BBC:

An international seed bank has reached its target of collecting 10% of the world's wild plants, with seeds of a pink banana among its latest entries.

The wild banana, Musa itinerans, is a favourite of wild Asian elephants.

Seeds from the plant, which is under threat from agriculture, join 1.7 billion already stored by Kew's Millennium Seed Bank partnership.

The project has been described as an "insurance strategy" against future biodiversity losses.

Read more ....

Another Century Of Oil? Getting More From Current Reserves

LANCE IVERSEN Corbis

From Scientific American:

Amid warnings of a possible "peak oil," advanced technologies offer ways to extract every last possible drop.

On fourteen dry, flat square miles of California’s Central Valley, more than 8,000 horsehead pumps—as old-fashioned oilmen call them—slowly rise and fall as they suck oil from underground. Glittering pipelines crossing the whole area suggest that the place is not merely a relic of the past. But even to an expert’s eyes, Kern River Oil Field betrays no hint of the technological miracles that have enabled it to survive decades of dire predictions.

Read more ....

How Can We Tell If a Country Is Making Nuclear Power Or Nuclear Weapons?

Bombs or Power?: Centrifuges are usually arranged in a triangular cascade; the layout tips inspectors to its purpose. Weapons require heavily enriched uranium, so the triangle is long and narrow; power takes more fuel, so the cascade is short and fat. McKibillo

From Popular Science:

It's all about enrichment.

Just about everyone insists that Iran’s nuclear program is aimed at building weapons. Iran claims it only wants nuclear power. So how do weapons inspectors get at the truth? They study the country’s supply and treatment of uranium, one of the most abundant nuclear materials on the planet.

Read more ....

Building The World's Most Powerful Laser

Photo: Power up: This laser can deliver a 200-joule pulse of light lasting just 100 femtoseconds. The cables at left pump power to green flash lamps that pump the laser. Credit: Texas Petawatt Laser Project

From Technology Review:

New lasers will be key to making fusion energy and proton therapy practical.

This March, researchers at the National Ignition Facility demonstrated a 1.1 megajoule laser designed to ignite nuclear fusion reactions by 2010. But the facility's technology, which is housed at the Lawrence Livermore National Laboratory in California, cannot yet generate enough energy to drive a practical power plant. So, even as physicists look forward to next year's demonstration, they're working on even more powerful lasers that could make possible a method for a kind of laser-induced fusion called fast ignition.

Read more ....

First Black Hole For Light Created On Earth

The full-wave simulation result when light is incident to the black hole
(Image: Qiang Cheng and Tie Jun Cui)


From New Scientist:

An electromagnetic "black holeMovie Camera" that sucks in surrounding light has been built for the first time.

The device, which works at microwave frequencies, may soon be extended to trap visible light, leading to an entirely new way of harvesting solar energy to generate electricity.

Read more ....

Thursday, October 15, 2009

Alien Giant Snakes Threaten To Invade Up To 1/3 of U.S.

Researchers place a radio transmitter inside a 16-foot (5-meter) Burmese python in Florida's Everglades National Park in an undated photo. Native to Asia, the species is already established in the wild in Florida and is taking a toll on Floridian animals. A similar fate could await ecosystems in a wide swath of the U.S. if other non-native giant snake species are allowed to flourish in the country, an October 2009 study says. Photograph courtesy Lori Oberhofer, National Park Service

From National Geographic:

Nine species of giant snakes—none of them native to North America and all popular pets among reptile lovers—could wreak havoc on U.S. ecosystems if the snakes become established in the wild, according to a new study by the U.S. Geological Survey (USGS) .

Two of the giant snakes are already at home in Florida. One of them, the Burmese python, has the potential to infiltrate the entire lower third of the U.S., the study says.

Read more ....

Wiser Wires -- Smart grids


From The Economist:

Information technology can make electricity grids less wasteful and much greener. Businesses have lots of ideas and governments are keen, but obstacles remain

WHAT was the greatest engineering achievement of the 20th century? The motor car, perhaps, or the computer? In 2000 America’s National Academy of Engineering gave a different answer: “the vast networks of electrification”. These, the academy concluded, made most of the century’s other advances possible.

Read more ....

Youth 'Cannot Live' Without Web

From The BBC:

A survey of 16 to 24 year olds has found that 75% of them feel they "couldn't live" without the internet.

The report, published by online charity YouthNet, also found that four out of five young people used the web to look for advice.

About one third added that they felt no need to talk to a person face to face about their problems because of the resources available online.

The findings were unveiled at the Houses of Parliament on Wednesday.

Read more ....

My Comment: I am 50, and I cannot live without the web.

The Other Peak Oil: Demand From Developed World Falling

OIL HALT: Demand for oil in developed countries could be passed its prime.
WIKIMEDIA COMMONS/FLCELLOGUY

From Scientific American:

Oil demand in industrialized countries peaked in 2005 and will not reach that high again, a new report predicts.

Demand for oil in developed nations peaked in 2005, and changing demographics and improved motor-vehicle efficiency guarantee that it won't hit those heights again, IHS Cambridge Energy Research Associates says in a new report.

Reduced petroleum demand in developed nations could make their economic growth less vulnerable to oil price shocks, the report states.

Read more ....

Leaked Barnes & Noble e-Reader Is A Powerful Multitouch Hybrid

Barnes & Noble e-Reader

From Popular Science:

Take a Kindle, and put a multitouch screen where the keyboard and navigation buttons go, and you've got the Barnes & Noble e-reader.

We're still a week away from Barnes & Noble's big e-reader announcement, but we've know they've had something cooking for a while now. And today, our pals at Gizmodo hit the mother load: leaked shots of a forthcoming dual-screen device that is three-quarters e-ink and one-quarter (wait for it) color multitouch.

Read more ....

Natural Gas Changes the Energy Map

Deep drilling: At Range Resources’ site in Washington County, PA, a specially designed rig is used to drill more than a thousand meters down and gradually turn 90° to follow the gas-rich shale deposit. The rig will drill half a dozen wells at the site. Beside it is a pond holding debris and mud from a well. Credit: Roy Ritchie

From Technology Review:

Vast amounts of the clean-burning fossil fuel have been discovered in shale deposits, setting off a gas rush. But how it will affect our energy use is still uncertain.

The first sign that there's something unusual about the flat black rocks strewn across the shore of Lake Erie comes when Gary Lash smashes two of them together. They break easily and fall into shards that give off the faint odor of hydrocarbons, similar to the smell of kerosene. But for Lash, a geologist and professor at nearby SUNY Fredonia, smashing the rocks is a simple trick designed to catch the attention of a visitor. The black outcroppings that protrude from the nearby bluff onto the narrow beach are what really interest him.

Read more
....

The Supercollider And A Theory About Fate

This was some of the worst damage to the Large Hadron Collider. Credit: CERN

From CNET:

More than a year after an explosion of sparks, soot, and frigid helium shut it down, the world's biggest and most expensive physics experiment, known as the Large Hadron Collider, is poised to start up again.

Before year's end, if all goes well, protons will start smashing together in an underground racetrack outside Geneva in a search for forces and particles that reigned during the first trillionth of a second of the Big Bang.

Read more ....

Time-Travelling Higgs Sabotages The LHC. No, Really

From New Scientist:

Could the Large Hadron Collider be sabotaging itself from the future? That's the suggestion of a couple of reasonably distinguished theoretical physicists, which has received a fresh airing in the New York Times today.

Actually, it's the Higgs boson that is doing the sabotage. Apparently, among the many singular properties of the Higgs that the LHC is meant to discover could be the ability to turn back time to stop its cover being blown.

Or as the New York Times puts it:

"the hypothesized Higgs boson... might be so abhorrent to nature that its creation would ripple backward through time and stop the collider before it could make one, like a time traveler who goes back in time to kill his grandfather."

Read more ....

Whatever Happened To Global Warming? How Freezing Temperatures Are Starting To Shatter Climate Change Theory

Sun or sea? The importance of the ocean's cooling and warming cycles are now under serious consideration as a key factor in global temperatures

From The Daily Mail:

In the freezing foothills of Montana, a distinctly bitter blast of revolution hangs in the air.

And while the residents of the icy city of Missoula can stave off the -10C chill with thermals and fires, there may be no easy remedy for the wintry snap's repercussions.

Read more ....

Researchers Discover Mechanism That Helps Humans See In Bright And Low Light

Illustration of human eye cross section. (Credit: iStockphoto/Nurbek Sagynbaev)

From Science Daily:

Science Daily (Oct. 14, 2009) — Ever wonder how your eyes adjust during a blackout? When we go from light to near total darkness, cells in the retina must quickly adjust. Vision scientists at Washington University School of Medicine in St. Louis have identified an intricate process that allows the human eye to adapt to darkness very quickly. The same process also allows the eye to function in bright light.

Read more ....

The Link Between Parkinson Disease And Farming

From Live Science:

Although genetics is very important in Parkinson disease (PD), many researchers believe that environmental exposures also increase a person's risk of developing the disease. There are studies that show that farmers and other agricultural workers have an increased risk of getting PD.

PD was first described in 1817 by Dr. James Parkinson, a British physician. It affects 1 in 100 people over the age of 60. It can also affect younger people. The average age of onset is 60. Research suggests that PD affects at least 500,000 people in the United States.

Read more ....

Gallery: Let the X-Planes Begin


From Autopia:

Few aircraft are as storied as the experimental series known as the X-Planes. These flying laboratories date to the mid-1940s and took us ever higher, further and faster.

The first, the Bell X-1, was developed to explore transonic flight after fighter pilots began experiencing control problems as they approached the speed of sound in dives. Since then, a long list of X-Planes — and other test aircraft lacking the official ‘X’ moniker — have explored the unknown edge of aerodynamics and aviation. From the early days of supersonic flight and speed records to the possibilities of unmanned combat aircraft, X-Planes have, as their pilots say, pushed the edge of the envelope.

Read more ....

Modern Man 'A Wimp', Says Anthropologist

Neanderthal man, as reconstructed by French scientists.

From The Independent:

Many prehistoric Australian aboriginals could have outrun world 100 and 200 metres record holder Usain Bolt in modern conditions.

Some Tutsi men in Rwanda exceeded the current world high jump record of 2.45 meters during initiation ceremonies in which they had to jump at least their own height to progress to manhood.

Any Neanderthal woman could have beaten former bodybuilder and current California governor Arnold Schwarzenegger in an arm wrestle.

Read more ....

Marine Plant Life Holds The Secret To Preventing Global Warming

Mangrove forests, salt marshes and seagrass beds, above, cover less than 1 per cent of the world's seabed, but lock away well over half of all carbon to be buried in the ocean floor

From Times Online:

Life in the ocean has the potential to help to prevent global warming, according to a report published today.

Marine plant life sucks 2 billion tonnes of carbon dioxide from the atmosphere every year, but most of the plankton responsible never reaches the seabed to become a permanent carbon store.

Mangrove forests, salt marshes and seagrass beds are a different matter. Although together they cover less than 1 per cent of the world’s seabed, they lock away well over half of all carbon to be buried in the ocean floor. They are estimated to store 1,650 million tonnes of carbon dioxide every year — nearly half of global transport emissions — making them one of the most intense carbon sinks on Earth.

Read more ....

Gene Linked To Better And Faster Decision Making

From The Telegraph:

Decision-makers are born not made, say scientists, as they discover people inherit a decisive gene.

The researchers found that people with a particular gene made quicker and more accurate decisions.

They were also better at learning tasks that require rapid and flexible decision-making compared to those with a different genetic make-up.

Read more ....

Kellogg's Will Use Laser To Burn Logo On To Individual Corn Flakes To Stamp Out Fakes

A proportion of Kellogg's flakes will be branded with the trademark using a laser

From The Daily Mail:

According to the advertising slogan, if you see Kellogg's on the box then you know it's Kellogg's in the box.

But now the company has become so concerned about similarly packaged supermarket cereals, it has developed a laser to burn its logo on to individual Corn Flakes.

The concentrated beam of light creates a toasted appearance without changing the taste.

Read more ....

Dolphins, Sharks And Birds Team Up For One Of Nature's Most Spectacular Annual Feeding Frenzies

Feeding frenzy: Up to 1,000 common dolphins arrive from the open ocean to drive sardines shoals towards the surface during the sardine run

From The Daily Mail:

It’s been billed as the greatest natural predatory show on earth and from these stunning images it is easy to why.

An underwater photographer was there to capture the action as dolphins, sharks, whales and birds teamed up for one of nature's most spectacular annual feeding frenzies – the sardine run.

New York born Jason Heller took the amazing pictures when he travelled to the wild coast of South Africa this July.

Read more ....

Jupiter Moon’s Ocean Is Rich In Oxygen

The strange striations on Europa's surface are thought to have been caused by tidal stresses from Jupiter as the ice cracks and warmer layers come to the surface. The same process may be responsible for transporting oxygen below the surface. Credit: NASA

From Cosmos:

SYDNEY: The globe-spanning ocean on Jupiter’s moon Europa contains about twice the liquid water of all Earth’s oceans combined, says a new study, which finds it’s packed with oxygen which could support life.

Research completed by Richard Greenberg a planetary scientist at the University of Arizona in Tucson, USA, suggests that there could be as much as 100 times the amount of oxygen previously estimated. The findings were presented last week at a meeting of the American Astronomical Society in Fajardo, Puerto Rico.

Read more ....

Finger Points To New Da Vinci Art

From BBC:

A new Leonardo da Vinci portrait may have been discovered after a fingerprint found on it seemed similar to another discovered on his work.

A Paris laboratory found the fingerprint is "highly comparable" to one on a da Vinci work in the Vatican.

Antiques Trade Gazette reported that the work, previously catalogued as "German, early 19th Century", could be worth tens of millions of dollars.

The work previously changed hands for around $19,000 (£12,039).

Read more ....

Wednesday, October 14, 2009

Bizarre Galaxy Is Result Of Pair Of Spiral Galaxies Smashing Together

Not surprisingly, interacting galaxies have a dramatic effect on each other. Studies have revealed that as galaxies approach one another massive amounts of gas are pulled from each galaxy towards the centre of the other, until ultimately, the two merge into one massive galaxy. NGC 2623 is in the late stages of the merging process, with the centres of the original galaxy pair now merged into one nucleus, but stretching out from the centre are two tidal tails of young stars, a strong indicator that a merger has taken place. During such a collision, the dramatic exchange of mass and gases initiates star formation, seen here in both the tails. (Credit: NASA, ESA and A. Evans (Stony Brook University, New York & National Radio Astronomy Observatory, Charlottesville, USA))

From Science Daily:

Science Daily (Oct. 14, 2009) — A recent NASA/ESA Hubble Space Telescope image captures what appears to be one very bright and bizarre galaxy, but is actually the result of a pair of spiral galaxies that resemble our own Milky Way smashing together at breakneck speeds. The product of this dramatic collision, called NGC 2623, or Arp 243, is about 250 million light-years away in the constellation of Cancer (the Crab).

Read more ....

Flying Reptile May Have Snatched Dinosaurs In Midair

The newly discovered remains of the flying reptile, now called Darwinopterus modularis, suggest the animals may have been an aerial predator, hunting small feathered dinosaurs (such as the one depicted here) and tiny gliding mammals some 160 million years ago. Credit: Mark Witton, University of Portsmouth.

From Live Science:

A crow-sized reptile sporting a lengthy tail likely soared through the skies some 160 million years ago, snatching feathered dinosaurs and tiny flying mammals from the air, suggest fossils of a newly identified pterosaur.

While paleontologists can't go back in time to watch the in-flight meal capture, the reptile's fossils, discovered recently in China's Liaoning Province, left behind compelling clues, the researchers say this week in the journal Proceedings of the Royal Society B: Biological Sciences.

Read more ....

The Real Impact of America's Oil Crisis -- An Interview

Image: The book Power Trip, by Amanda Little

From Time Magazine:

Esoteric climate-science warnings about America's oil dependence can make even the most well-meaning of eyes glaze over. Amanda Little, author of Power Trip: From Oil Wells to Solar Cells — Our Ride to the Renewable Future, took a different approach. She traveled from an offshore oil rig to the halls of the Pentagon, from NASCAR racetracks to the office of a pricey plastic surgeon in order to tell a more human side of the energy story. TIME talked to Little about how fossil fuels saturate our lives and why taking personal responsibility is the key to pulling out of this mess.

Read more ....

Backslash: Web Creator Sir Tim Berners-Lee Apologises For HisStrokes


From Times Online:

A light has been shone on one of the great mysteries of the internet. What is the point of the two forward slashes that sit directly infront of the “www” in every internet website address?

The answer, according to the British scientist who created the world wide web, is that there isn’t one.

Sir Tim Berners-Lee, who wrote the code that transformed a private computer network into the web two decades ago, has finally come clean about the about the infuriating // that internet surfers have cursed so frequently.

Read more ....

Plumes Of Fire And Gas Erupting From The Sun Have Been Captured By Nasa Spacecraft



From The Telegraph:

Great balls of gas erupting from the Sun have been captured in rare footage by two Nasa spacecraft.

Filmed over two days, the images show huge plumes of gas bursting from the Sun's surface and held aloft by its magnetic field.

These gas bursts - known as solar prominences - are several times larger than the Earth and travel at enormous speed.

Read more ....

Astronomers Clash With US Air Force Over Laser Rules

The Gemini North observatory in Hawaii fires a laser into the sky as part of its adaptive optics system (Image: Gemini Observatory)

From New Scientist:

Could astronomers accidentally blind Earth-observing satellites? That seems to be the worry of the US air force, which restricts the use of lasers pointed at the sky to help focus telescopes. But some astronomers warn they will miss key observations under the rules, which have tightened in recent years.

Many of the world's largest observatories, including Lick, Gemini North, Palomar and Keck in the US, shine lasers into the sky to measure atmospheric turbulence, which distorts images.

Read more ....

My Comment:This is probably a bigger problem than what the U.S. Air Force is willing to admit.

Extra-Powerful Military Sonar 'Is Killing Britain's Last Wild Dolphins'

Naval exercises will threaten bottlenose dolphins in the Moray Firth (pictured), according to wildlife campaigners who say the animals will deafened by the sonar

From The Daily Mail:

Conservationists fear a major naval exercise due to start today will put Britain’s wild dolphins in danger.

They say the latest generation of military sonar being used in the Nato exercise threatens the North Sea’s last remaining bottlenose dolphins.

The warning from the Whale and Dolphin Conservation Society comes after an unusually high number of deep sea whales have been stranded or spotted in shallow waters around the coast.

Read more ....