Astronauts Finish Repairs On Hubble Space Telescope

In this image from NASA TV astronauts John Grunsfeld, left, and Andrew Feustel work to upgrade the Hubble Space Telescope during a spacewalk, Monday, May 18, 2009. This is the fifth and final repair mission for the 19-year-old telescope. (AP Photo/NASA TV)

From Yahoo News/AP:

CAPE CANAVERAL, Fla. – Spacewalking astronauts completed repairs to the Hubble Space Telescope on Monday, leaving it more powerful than ever and able to peer even deeper into the cosmos — almost to the brink of creation. The last humans to lay hands on Hubble outfitted the observatory with another set of fresh batteries, a new sensor for precise pointing and protective covers.

That equipment, along with other improvements made over the last five days, should allow the telescope to provide dazzling views of the universe for another five to 10 years.

"This is a very important moment in human history," Hubble senior project scientist David Leckrone said in Houston. "We will rewrite the textbooks at least one more time."

Read more ....

Nine Games Computers Are Ruining For Humanity

From New Scientist:

If we ever manage to build a working quantum computer, the first killer app might be online poker. Thanks to the counter-intuitive rules of quantum mechanics, players will be able to use mind-boggling strategies like betting and folding simultaneously (see Quantum poker: Are the chips down or not?).

Poker wouldn't be the first game to have been revolutionised by computers. Artificial intelligence researchers have taught computers to play a wide range of strategic games well enough to compete with skilful human players – and in a few cases, they've beaten them convincingly...

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Weird New NASA Rovers Really Get Around

From Wired Science:

At some point on their five-year journey, Mars rovers Spirit and Opportunity have both gotten their feet stuck in the soil, and NASA is taking notes for the design of the next generation of rovers.

In 2005, Opportunity spent five weeks spinning her wheels in a dune later dubbed “Purgatory.” Last week, Spirit sank into a sandpit scientists are calling “Troy,” and could stay there for weeks — or forever.

But rovers of the future may have an easier time of it. NASA scientists are building an army of prototypes with new and ever weirder ways to rove.

Read more ....

Future Of Personalized Cancer Treatment: New System Delivers RNA Into Cells

Photo: This is a PTD-DRBD fusion protein. (Credit: Dowdy Lab/UC San Diego)

From Science Daily:

ScienceDaily (May 18, 2009) — In technology that promises to one day allow drug delivery to be tailored to an individual patient and a particular cancer tumor, researchers at the University of California, San Diego School of Medicine, have developed an efficient system for delivering siRNA into primary cells. The work is published in the May 17 in the advance online edition of Nature Biotechnology.

"RNAi has an unbelievable potential to manage cancer and treat it," said Steven Dowdy, PhD, Howard Hughes Medical Institute Investigator and professor of cellular and molecular medicine at UC San Diego School of Medicine. "While there's still a long way to go, we have successfully developed a technology that allows for siRNA drug delivery into the entire population of cells, both primary and tumor-causing, without being toxic to the cells."

Read more ....

Happiness Is ... Being Old, Male and Republican

Cindy McCain, wife of Republican presidential hopeful, Sen. John McCain, R-Ariz., looks on as he speaks at a news conference in Toledo, Ohio. Thursday. AP Photo

From Live Science:

Americans grow happier as they age, surveys find. And a new Pew Research Center survey shows the tendency is holding up as the economy tanks.

Happiness is a complex thing. Past studies have found that happiness is partly inherited, that Republicans are happier than Democrats, and that old men tend to be happier than old women.

And even before the economy got nasty, seniors were found to be generally happier than Baby Boomers. Some of that owes to the American Dream being lived by past generations, while Boomers work two jobs and watch the dream wither.

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Brain's Organization Switches As Children Become Adults

The organizational structures in the human brain undergo a major shift during the transition from childhood to adulthood. Brain regions are represented by circles, with the outer color of the circle symbolizing where in the brain each region is physically located while the inner color represents the region's function. (Credit: Image courtesy of Washington University School of Medicine)

From Science Daily:

ScienceDaily (May 17, 2009) — Any child confronting an outraged parent demanding to know "What were you thinking?" now has a new response: "Scientists have discovered that my brain is organized differently from yours."

But all is not well for errant kids. The same new study also provides parents with a rejoinder: While the overarching organization scheme differs, one of the most important core principals of adult brain organization is present in the brains of children as young as 7.

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Cyber Millenials: High-tech And Highly Educated Young Adults Who Drink Way Too Much

From Science Daily:

ScienceDaily (May 17, 2009) — "Audience segmentation" refers to categorizing people by their behaviors, attitudes, opinions, or lifestyles. It is widely used in social-marketing efforts. A new study uses this method to find high-risk drinkers in the US, leading researchers to a group dubbed the Cyber Millenials: "the nation's tech-savvy singles and couples living in fashionable neighborhoods on the urban fringe."

"Marketing research provides a unique window on individuals as consumers that has rarely been used in alcohol-prevention efforts," explained Howard B. Moss, associate director for Clinical and Translational Research at the National Institute on Alcohol Abuse and Alcoholism (NIAAA) and corresponding author for the study.

Read more ....

Why We Mourn For Strangers

From Live Science:

In Tracy, California, several thousand people recently gathered in memory of 8-year-old Sandra Cantu, who was abducted on March 27. Police and volunteers combed the area looking for clues, while psychics offered information that was both contradictory and completely worthless.

Tragically, Cantu was found ten days later by farmworkers draining an irrigation pond near her home. She had been raped, killed, and stuffed in a suitcase. Melissa Huckaby, a local Sunday school teacher, has been arrested and charged with the girl's sexual assault and murder.

Strangers from around the world sent gifts, poems, and prayers to the Cantu family. They held candlelight vigils and signed online memorial pages. Tracy Police Chief Janet Thiessen commented at a memorial that "Sandra Cantu became our little girl, a child whose spirits touched us."

Read more ....

Venus figurine sheds light on origins of art by early humans

The figurine, found in 2008 in a cave in Schelklingen, southern Germany is thought to be the world's oldest reproduction of a human. Daniel Maurer / Associated Press

From The L.A. Times:

The 40,000-year-old carved figure of a voluptuous woman was excavated in Germany. It 'radically changes our views of the context and meaning of the earliest Paleolithic art,' its discoverer says.

A 40,000-year-old figurine of a voluptuous woman carved from mammoth ivory and excavated from a cave in southwestern Germany is the oldest known example of three-dimensional or figurative representation of humans and sheds new light on the origins of art, researchers reported Wednesday.

The intricately carved headless figure is at least 5,000 years older than previous examples and dates from shortly after the arrival of modern humans in Europe. It exhibits many of the characteristics of fertility, or Venus, figurines carved millenniums later.

Read more ....

My Comment: It is hard to believe that such a small carving is 45,000 years old. How did it survive? Was it carved by Homo Sapien or Neanderthal?

Growing Old With Autism

Noah Greenfeld, 42, who spent 15 years in a state mental facility, is now in an assisted living home near his parents in Los Angeles. Max S. Gerber for TIME

From Time Magazine:

Noah, my younger brother, does not talk. Nor can he dress himself, prepare a meal for himself or wipe himself. He is a 42-year-old man, balding, gaunt, angry and, literally, crazy. And having spent 15 years at the Fairview Developmental Center in Costa Mesa, Calif., a state facility, Noah has picked up the con's trick of lashing out before anyone could take a shot at him.

Noah's autism has been marked by "three identified high priority maladaptive behaviors that interfere with his adaptive programming. These include banging his head against solid surfaces, pinching himself and grabbing others," according to his 2004 California Department of Developmental Services individual program plan (IPP). Remarkably, that clinical language actually portrays Noah more favorably than the impression one would get from a face-to-face meeting.

Read more ....

Space Station Module Handed Over

From The BBC:

Europe has rolled out its last major module for the space station.

The cylindrical Node 3 - to be known as "Tranquility" - was constructed by Thales Alenia Space in Turin, Italy.

Once attached to the station, it will house life support gear as well as being home to the Cupola, a giant "bay" window that was also built in Europe.

Node 3 will be shipped shortly to the Kennedy Space Center in the US, from where it will catch a ride to the station in the back of a shuttle.

The Endeavour orbiter flight, which will take up the Cupola as a co-passenger, is currently scheduled to lift-off in February 2010.

Read more ....

Scientists Put Psychic's Paranormal Claims To The Test

Arch-sceptic, conjuror and debunker James Randi first offered a cash prize in the 1960s to anyone who could prove a paranormal claim under controlled conditions. Photograph: Public Domain

From The Guardian:

The young female volunteer in front of me could not suppress an embarrassed giggle as she sat there wearing a ski mask, wraparound sunglasses, an oversized graduation gown and a pair of white socks, a large laminated sheet hung around her neck displaying her participant number.

Then things got even weirder. Professor Richard Wiseman knocked on the door to collect our volunteer. He accompanied her into a large room where she was instructed to sit in a chair facing the wall and do nothing for 15 minutes or so. Professional medium Mrs Patricia Putt was then brought into the room and sat down at a small table around 12 feet away. Sometimes Mrs Putt would request that a volunteer read a pre-specified short passage, as she had found from past experience that often "the Spirit enters and makes contact through the sound of the sitter's voice". After that, no talking was allowed whatsoever as our medium wrote down a "reading" describing the volunteer using her alleged paranormal abilities. At the end of the reading, Mrs Putt left the room and the volunteer was allowed to change back into somewhat more conventional garb and given a reminder to return later in the day for the all-important judging phase.

Read more ....

17 Steps To The Moon And Back: Anatomy Of A Moonshot

Buzz Aldrin explores the lunar surface.

From Popular Mechanics:

The most remarkable thing about Apollo 11—considering the uncertainties of manned spaceflight and the mishaps that bedeviled NASA on previous and subsequent missions—was its nearly flawless execution, from liftoff to splashdown. “I had the sense that surely something would go awry sooner or later,” flight director Glynn Lunney says. “It was pretty much by the book.” Here are the critical events that had to go right, and what would have happened had they gone wrong.

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Deep-Sea Eruption, Odd Animals Seen

© 2009 National Geographic; Video © Woods Hole Oceanographic Institution

From National Geographic:

May 7, 2009—Scientists have caught a fast-growing, 12-story underwater volcano erupting—along with odd creatures evolved to survive its toxic emissions.

Scientists, witnessing and videotaping for the first time the eruption of an undersea volcano in the Pacific Ocean in the Northern Mariana Islands near Guam.

(onscreen: Video: Woods Hole Oceanographic Institution)

The researchers, using the remotely operated vehicle, Jason, recorded the video in April, and sampled the eruption plume with an intake in one of its manipulator arms.

The deep-sea volcano, called NW Rota-1, was first observed erupting in 2004. Its been continuously spewing lava and highly acidic molten sulfur.

Read more ....

Inexpensive Plastic Used In CDs Could Improve Aircraft, Computer Electronics

CDs. The inexpensive plastic now used to manufacture CDs and DVDs may one day soon be put to use in improving the integrity of electronics in aircraft, computers and iPhones. (Credit: iStockphoto/José Luis Gutiérrez)

From Science Daily:

ScienceDaily (May 17, 2009) — If one University of Houston professor has his way, the inexpensive plastic now used to manufacture CDs and DVDs will one day soon be put to use in improving the integrity of electronics in aircraft, computers and iPhones.

Thanks to a pair of grants from the U.S. Air Force, Shay Curran, associate professor of physics at UH, and his research team have demonstrated ultra-high electrical conductive properties in plastics, called polycarbonates, by mixing them with just the right amount and type of carbon nanotubes.

Read more ....

Is Wind The Next Ethanol? -- A Commentary

A picture taken in May 2001 shows the world's largest offshore windmill farm, Middelgrunden Windmill Farm, located in the Oeresund, three km from Copenhagen harbour. (AFP/Getty Images)

From The Washington Times:

Subsidizing this source could mandate a hefty consumer cost.

Repeating past mistakes has long been a part of Washington's energy policy, but Congress used to wait a while before making the same blunder again. Not anymore. New legislation requiring wind energy closely resembles the ethanol mandate that sparked a backlash just last year.

For many years, wind has benefited from generous tax credits and subsidies, but it still provides less than 2 percent of the nation's electricity. By comparison, coal supplies around 50 percent (and with considerably fewer federal incentives). Natural gas and nuclear, meanwhile, account for about 20 percent each.

Read more ....

How Sand Dunes Grow Huge

Giant dunes in Grand Erg Oriental, Algeria. Credit: Bruno Andreotti

From Live Science:

Anyone who has seen giant sand dunes, the tall ones stretching many hundreds, even thousands, of feet across the desert floor, has surely wondered how they get to be so big. Scientists, too, have deliberated the question for years.

The sandy behemoths form in China, the Sahara, Namibia, and Iran, among other desert areas, and they come in ridge, star, or crescent shapes.

Bruno Andreotti and Philippe Claudin of the Laboratory of the Physics and Mechanics of Heterogeneous Media in Paris and colleagues now have some answers. The team studied giant-dune fields on-site, analyzed aerial and satellite photos and meteorological data, and ran aerodynamic models to investigate dune growth.

Read more ....

The First 43 Years And Next 43 Years Of Star Trek And Our World

From The Next Big Future:

The First 43 Years from 1966 to 2009

We start just a little before 1966 (when the first show of the TV series was aired, which would technically be the first 45 years) to get a sense of technology and the world while the Star Trek show was in its development phase through to today.

In 1964, Roddenberry secured a three-year development deal with leading independent TV production company Desilu (founded by comedy stars Lucille Ball and Desi Arnaz). In Roddenberry's original concept, the protagonist was named Captain Robert April of the "S.S. Yorktown". Eventually, this character became Captain Christopher Pike. The first pilot episode, "The Cage", was made in 1964, with actor Jeffrey Hunter in the role of Pike after Roddenberry's first choice, Lloyd Bridges had reportedly turned it down.

Read more ....

The Future Of 5 Telescopes In Space

(Photograph by NASA/AFP/Getty Images)

From Popular Mechanics:

This week has been an active one for earthlings' quest to understand the universe. Here is the big news on five telescopes in the sky.

On what is supposed to be the last space shuttle visit ever to the Hubble Space Telescope, astronauts successfully installed a new camera.

Mission specialists John Grunsfeld and Drew Feustel installed the Wide Field Camera 3, an upgraded system that will produce larger, more detailed photos over a wide range of colors, according to NASA. The old camera, responsible for some of the most images of the cosmos since its installation in 1993, will be brought down for display at the Smithsonian's National Air and Space Museum.

Read more ....

Is David Attenborough Set To Reveal The Missing Link In Human Evolution?

From The Daily Mail:

The BBC has made an extraordinary new documentary, presented by Sir David Attenborough, which will reveal the discovery of a fossilised skeleton that may be a vital ‘missing link’ in human evolution.

The 90-minute programme is top secret but The Mail on Sunday has learned from sources in America that the results of the study on which it is based will be revealed by a team of scientists and broadcasters in New York on May 19.

The centrepiece of the programme is the unveiling of the first-ever complete skeleton of an extinct animal called an adapid.

Read more ....

Melting Threat From West Antarctic Ice Sheet May Be Less Than Expected; But U.S. Coastal Cities At Risk

Iceberg in Paradise Bay, West Antarctica. (Credit: iStockphoto/Micheal O Fiachra)

From Science Daily:

ScienceDaily (May 15, 2009) — While a total or partial collapse of the West Antarctic Ice Sheet as a result of warming would not raise global sea levels as high as some predict, levels on the U.S. seaboards would rise 25 percent more than the global average and threaten cities like New York, Washington, D.C., and San Francisco, according to a new study.

Long thought of as the sleeping giant with respect to sea level rise, Antarctica holds about nine times the volume of ice of Greenland. Its western ice sheet, known as WAIS, is of particular interest to scientists due to its inherent instability, a result of large areas of the continent's bedrock lying below sea level. But the ice sheet's potential contribution to sea level rise has been greatly overestimated, according to new calculations.

Read more ....

Lessons From Earth's Most Murderous People

This photo and caption released by Survival International on May 29, 2008, caused a stir: Uncontacted Indians in Brazil seen from the air, May 2008 © Gleison Miranda/FUNAI

From Live Science:

Decades ago, when I was a bright-eyed undergraduate student, I saw a documentary called "Dead Birds" in my cultural anthropology class about the Dani of New Guinea, and it changed my life.

Brought up in a nice, middle-class, white American family, I had no idea that there were people in the world who still lived in huts, kept pigs, and spent their days on high, swaying platforms looking for the enemy. And when the enemy came screaming over the hill, wearing elaborate feathered headdresses and carrying spears, I was stunned into becoming an anthropologist, right then and there.

Read more ....

Color E-Paper That Rivals the Real Thing

Color scheme: A prototype in-plane electrophoretic display consisting of 1,000 pixels. Credit: Philips

From Technology Review:

Turning pixels on their side may finally mean high-quality color electronic paper.

Despite Amazon's promise to reinvent the newspaper and magazine industry with its new, large-screen Kindle DX electronic reader, some people may be reluctant to embrace the technology until full-color displays are possible. A new approach developed by Philips now offers fresh hope for color e-paper displays that are so bright and clear that even traditional liquid crystal displays (LCDs) will pale in comparison.

Read more ....

Wolfram Alpha Search Engine Is Now Online

The Wolfram Alpha Search Engine is now online, and can be found here.

Heavy use of the search engine has caused it to send back a message that it has exceeded its "user limits" .... but otherwise it appears to be a cool and practical search engine.

Telescopes Poised To Spot Air-Breathing Aliens

Image: The next generation of space telescopes will be capable of detecting "biosignatures" in the light from planets orbiting other stars (Image: G. Bacon STSCI / ESA / NASA)

From New Scientist:

SIGNS of life on planets beyond our own solar system may soon be in our sights. Experiments and calculations presented at an astrobiology meeting last week reveal how the coming generation of space telescopes will for the first time be capable of detecting "biosignatures" in the light from planets orbiting other stars.

Any clues about life on these exoplanets will have to come from the tiny fraction of the parent star's light that interacts with the planet on its journey towards Earth. The Hubble and Spitzer space telescopes have both detected gases such as carbon dioxide and water vapour in the atmospheres of a handful of gas-giant exoplanets as they pass in front of their parent stars. The gas molecules absorb light at characteristic wavelengths, and this shows up as dark lines in the spectrum of the starlight which has been filtered through the planet's atmosphere. But seeing evidence of life - so-called biosignatures - in the spectrum of worlds small enough to be rocky like Earth is beyond the sensitivity of these instruments.

Read more ....

Sleep Can Improve Your Word Power

From The Telegraph:

Reading bedtime stories to children could help to improve their vocabulary, new research suggests.

Psychologists have discovered that a good night's sleep plays a crucial role in allowing the brain to store and remember new words learned during the day.

People who were asked to learn a set of fictitious words were better at remembering them after they had spent time asleep than if they were asked to recall the words just a few hours after being taught them.

Read more ....

Melting Ice Could Cause Gravity Shift

The disintegration of the Antarctic ice sheet could cause catastrophic flooding on the east and west coasts of America. AFP

From The Independent:

The melting of one of the world's largest ice sheets would alter the Earth's field of gravity and even its rotation in space so much that it would cause sea levels along some coasts to rise faster than the global average, scientists said yesterday.

The rise in sea levels would be highest on the west and east coasts of North America where increases of 25 per cent more than the global average would cause catastrophic flooding in cities such as New York, Washington DC and San Francisco.

Read more ....

Star Crust Is Ten Billion Times Stronger Than Steel

The outer crusts of so-called neutron stars (above, a neutron star in an artist's conception) are ten billion times stronger than steel—making it the strongest known material in the universe, scientists said in May 2009. Image by Casey Reed, courtesy of Penn State

From National Geographic News:

Move over, Superman.

The Man of Steel has nothing on the collapsed cores of massive snuffed-out stars, scientists say.

A new computer model suggests that the outer crusts of so-called neutron stars are the strongest known material in the universe.

To determine the breaking point of a neutron star's crust, the team modeled magnetic field stresses and crust deformation for a small region of the star's surface.

The results showed that the crust of a neutron star can withstand a breaking strain up to ten billion times the pressure it would take to snap steel.

"It sounds dramatic, but it's true," said study team member Charles Horowitz of Indiana University.

Read more ....

Let The Planet Hunt Begin: Kepler Spacecraft Begins Search For Other Earth-like Worlds

Artist concept of Kepler in space. (Credit: NASA/JPL)

From Science Daily:

ScienceDaily (May 15, 2009) — NASA's Kepler spacecraft has begun its search for other Earth-like worlds. The mission, which launched from Cape Canaveral, Fla., on March 6, will spend the next three-and-a-half years staring at more than 100,000 stars for telltale signs of planets. Kepler has the unique ability to find planets as small as Earth that orbit sun-like stars at distances where temperatures are right for possible lakes and oceans.

"Now the fun begins," said William Borucki, Kepler science principal investigator at NASA's Ames Research Center, Moffett Field, Calif. "We are all really excited to start sorting through the data and discovering the planets."

Read more ....

Supercomputer Helps SoCal Prep For The Big One

From Live Science:

Very few things in life are certain. If you live in Southern California, however, rest assured that some time in the next few decades you will experience an earthquake of significant magnitude.

And while the disaster itself is probably unavoidable, knowing which areas will be most affected can do a great deal to mitigate the aftermath. For example, where will the strongest ground movement occur, and how long will the shaking last?

Obviously, when it comes to new construction in an area with a high probability of an earthquake in the relatively near future, this knowledge is invaluable. Engineers crave this sort of data when they are designing the buildings of tomorrow.

Read more ....

Can The Grid Handle Renewables?

Photo: LIGHTS OUT FOR THE OLD GRID? A six-month study will test the grid's ability to handle the load and fluctuation of a surge of renewable energy. FLICKR/PETER KAMINSKI

From Scientific American:

A new study aims to find out how much electricity from wind and sunshine the aging power grid can support.

The Federal Energy Regulatory Commission launched a six-month study today to determine how much renewable energy the electric grid can accommodate.

FERC will work with the Lawrence Berkeley National Laboratory on the $500,000 study to validate the preliminary frequency-response tool developed by the commission to gauge the grid's reliability if large quantities of renewable energy are sent to the system.

"We need a good metric – a good yardstick, a tool – to assess how much renewable energy can be injected into the bulk power ... system," said Joseph McClelland, director of FERC's Office of Electric Reliability.

Read more ....

Water Way To Travel! Super Winged Submersible That 'Flies' Through The Ocean Unveiled

Sea for two: The Super Falcon Submersible surfaces
near San Francisco following 20 years of research

From The Daily Mail:

Man has raced across the land and launched into space, but traveling underwater has proved more tricky.

Now an engineer has built a high-tech winged submersible that he says can 'fly' beneath the waves.

The Super Falcon Submersible, which resembles Thunderbird 4, can reach depths of 1,500 feet and speed through the ocean at six knots, which is nearly seven miles per hour. It has a range of around 25 nautical miles.

Created by British inventor Graham Hawkes for Hawkes Ocean Technologies, it is the newest and most advanced sub of their Deep Flight series and the culmination of four generations of experimental prototypes.

Read more ....

Space Shuttle Masquerades As Sunspot In New Image

Photo: NASA's space shuttle Atlantis is on an 11-day mission to repair and upgrade the Hubble Space Telescope. The shuttle's silhouette can be seen against the sun in this image taken from Florida on Tuesday, when the shuttle was on its way to Hubble (Image: NASA/Thierry Legault)

From New Scientist:

The space shuttle Atlantis masquerades as a sunspot in this image, taken by photographer Thierry Legault as the shuttle sped towards the Hubble Space Telescope on Tuesday.

Atlantis is on an 11-day mission to give Hubble a new lease on life. In a series of five back-to-back spacewalks, astronauts are replacing old equipment, installing two new cameras, and repairing two others.

After a two-day journey to reach Hubble, the shuttle's robotic arm reached out to grab hold of the probe on Wednesday. Astronauts emerged the next day to outfit the telescope with a new camera and replace an old computer.

Read more ....

Is Warp Speed Possible? We Ask a String Theorist

The Enterprise: Courtesy Industrial Light & Magic/Paramount Pictures

From Popsci.com:

PopSci talks to futurist Michio Kaku about the (not necessarily) impossible physics of Star Trek.

Science geeks, Trekkers, and action-movie fans have now had a few days to digest the newest incarnation of the Star Trek franchise. PopSci set out to answer some of the movie's most puzzling questions (aside from what Winona Ryder was doing on Vulcan): Can we time-travel through black holes? Can we seed said black holes using something called "red matter"? How about teleportation -- will someone named Scotty (or Chekov) ever beam someone up?

Read more ....

Neandertals Sophisticated And Fearless Hunters, New Analysis Shows

Model of the Neanderthal man. Exhibited in the Dinosaur Park Münchehagen, Germany. (Credit: iStockphoto/Klaus Nilkens)

From Science Daily:

ScienceDaily (May 14, 2009) — Neandertals, the 'stupid' cousins of modern humans were capable of capturing the most impressive animals. This indicates that Neandertals were anything but dim. Dutch researcher Gerrit Dusseldorp analysed their daily forays for food to gain insights into the complex behaviour of the Neandertal. His analysis revealed that the hunting was very knowledge intensive.

Although it is now clear that Neandertals were hunters and not scavengers, their exact hunting methods are still something of a mystery. Dusseldorp investigated just how sophisticated the Neandertals' hunting methods really were. His analysis of two archaeological sites revealed that Neandertals in warm forested areas preferred to hunt solitary game but that in colder, less forested areas they preferred to hunt the more difficult to capture herding animals.

Read more ....

Star Crust Is Ten Billion Times Stronger Than Steel

The outer crusts of so-called neutron stars (above, a neutron star in an artist's conception) are ten billion times stronger than steel—making it the strongest known material in the universe, scientists said in May 2009. Image by Casey Reed, courtesy of Penn State

From National Geographic News:

Move over, Superman.

The Man of Steel has nothing on the collapsed cores of massive snuffed-out stars, scientists say.

A new computer model suggests that the outer crusts of so-called neutron stars are the strongest known material in the universe.

To determine the breaking point of a neutron star's crust, the team modeled magnetic field stresses and crust deformation for a small region of the star's surface.

The results showed that the crust of a neutron star can withstand a breaking strain up to ten billion times the pressure it would take to snap steel.

"It sounds dramatic, but it's true," said study team member Charles Horowitz of Indiana University.

Read more ....

19 Years Of Hubble

Courtesy STScI and NASA
The deployed Hubble telescope

From The CBC:

Happy birthday, Hubble

This galaxy was chosen as a subject for the Hubble Space Telescope because it won the most votes in a competition hosted by the Space Telescope Science Institute. The contest was held in celebration of 2009's designation as the International Year of Astronomy. This year also marks the Hubble telescope's 19th year in operation. This group of three galaxies is known as Arp 274, and is about 400 million light years away from Earth in the constellation Virgo. You can see the birthplace of new stars in the small knots of bright blue in the small galaxy on the left, and the arms of the galaxy on the right. (NASA)

The link to see the pictures from Hubble are here.

Gadgets Sap World's Electricity

From Live Science:

Sometime this year, the number of people using a personal computer will pass the one billion mark, according to the International Energy Agency. By sometime next year there will be more than 3.5 billion mobile phones subscribers and 2 billion TVs in use around the world, according to a new report from the agency.

And that's a problem.

You've heard of vampire energy? It's the name given to electricity that runs TVs, stereos and computers when they're in sleep mode, not even being used. You've seen the little red lights that indicate something's still humming inside.

Add that to the juice used by all manner of gadgets when they are being used or charged and, well ...

Without new policies, the energy consumed by electronic gadgets will double by 2022 and increase threefold by 2030 to 1,700 Terawatt hours (TWh), the IEA estimates.

Read more ....

100 Geeks You Should Be Following On Twitter

From Geekdad/Wired News:

Twitter has of late been inundated by, shall we say, “normals.” What was once our little playground has become rather more populated. But that doesn’t make it any less effective a tool for communication. It just means we have to stick together, and keep the geek community thriving.

To this end, GeekDad has assembled the following: a list of 100 awesomely geeky-geeks. These are great, creative gamers and chiptune artists, astronomers and LEGO builders. Of course such a list cannot dream of being exhaustive, and we hope you’ll add your own suggestions in the comments.

Read more ....

Fringe Season Finale Flirts With Theoretical Physics

From Popular Mechanics:

During the course of its first season, Fringe has played with the idea of that there are actually two realities, one slightly different from the other. In the season finale, "There's More Than One of Everything," the show delved into the science behind this idea, fleshing out the alternate reality with FBI Agent Olivia Dunham and company trying to stop über-villain David Robert Jones from getting to the elusive Massive Dynamic CEO William Bell, who, according to spokeswoman Nina Sharp, is hiding out in this other reality. PM spoke to physicist Michio Kaku, author of Physics of the Impossible, to perform our final fact check of Fringe, season one.

Read more ....

Angels & Demons - Separating Science From Fiction

Photo: In the film, Tom Hanks plays the Harvard academic Robert Langdon, who finds evidence that an ancient clandestine brotherhood have stolen antimatter from a secret laboratory at CERN, which they plan to use as a weapon to destroy the Vatican.

From The Independent:

CERN scientist Tara Shears examines the scientific reality of new film Angels and Demons.

Anti-matter and CERN are getting fantastic exposure with the release of the film Angels and Demons today - a film adaptation of Dan Brown’s novel of the same name.

As a CERN scientist myself, when I heard that part of the plot was based in the world’s biggest particle physics laboratory I was intrigued to see how our work would be portrayed. I was pleasantly surprised on the whole; it was wonderful to see particle physics get the Hollywood treatment! However, when you delve deeper into the science behind the plot, there is a line to draw between reality and fiction.

Read more ....

Milk And Cereal As Good As Expensive Sports Drinks In Boosting Performance, Claim Scientists

The milk helps reduce lactic acid levels in the blood,
the compound that causes stiffness after exercise Photo: GETTY

From The Telegraph:

Milk and cereal help to speed up recovery after exercise as much as expensive sports drinks, new findings from the University of Texas suggest.

Researchers found that athletes were just as replenished after exercise with a bowl of wheat flakes and skimmed milk as they were with many modern sports drinks which claim to rehydrate and re-energise the muscles.

They found that the traditional breakfast was just as good at replenishing blood sugar and insulin levels and that protein production was even better than with the so-called energy drinks.

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Lift-Off! Telescopes Herschel And Planck Launched To Seek Out The Origins Of The Universe

From The Daily Mail:

Two European telescopes have launched into space today which could solve the mystery surrounding the origins of the universe.

The Herschel and Planck observatories were sent into orbit together from French Guinea at 2.12pm (BST) and scientists hope they will reveal crucial stages of star birth and galaxy formation.

This will help them answer some of the most important questions in modern science, such as how did the universe begin, how did it evolve to what we see now, and how will it continue to evolve in the future?

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The Truth About Angels, Demons and Antimatter

Physicist Vittoria Vetra (Ayelet Zurer) and symbologist Robert Langdon (Tom Hanks) look upon an antimatter trap in the 2009 movie "Angels and Demons." Credit: Sony Pictures

From Live Science:

An antimatter explosion threatens to level the Vatican in the movie adaptation of the thriller "Angels and Demons," but real-world physicists are unfazed by this plot.

The story features "Da Vinci Code" hero Robert Langdon racing to recover an antimatter capsule stolen from the CERN particle physics facility in Switzerland. Researchers first figured out how to create and trap antimatter particles at CERN, which gave author Dan Brown the inspiration for his story.

One physicist doesn't find CERN's unexpected publicity from the story upsetting. On the contrary, he's rather pleased.

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EBay Has Unexpected, Chilling Effect On Looting Of Antiquities, Archaelogist Finds

The daughter of a Peruvian artisan who specializes in the production of fake antiquities holds up an example. (Credit: Image courtesy of University of California - Los Angeles)

From Science Daily:

ScienceDaily (May 9, 2009) — Having worked for 25 years at fragile archaeological sites in Peru, UCLA archaeologist Charles "Chip" Stanish held his breath when the online auction house eBay launched more than a decade ago.

"My greatest fear was that the Internet would democratize antiquities trafficking, which previously had been a wealthy person's vice, and lead to widespread looting," said the UCLA professor of anthropology, who directs the UCLA Cotsen Institute of Archaeology.

Indeed, eBay has drastically altered the transporting and selling of illegal artifacts, Stanish writes in an article in the May/June issue of Archaeology, but not in the way he and other archaeologists had feared.

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Life’s First Spark Recreated In The Laboratory

A fundamental but elusive step in the early evolution of life
on Earth has been replicated in a laboratory.

From Wired Science:

Researchers synthesized the basic ingredients of RNA, a molecule from which the simplest self-replicating structures are made. Until now, they couldn’t explain how these ingredients might have formed.

“It’s like molecular choreography, where the molecules choreograph their own behavior,” said organic chemist John Sutherland of the University of Manchester, co-author of a study in Nature Wednesday.

RNA is now found in living cells, where it carries information between genes and protein-manufacturing cellular components. Scientists think RNA existed early in Earth’s history, providing a necessary intermediate platform between pre-biotic chemicals and DNA, its double-stranded, more-stable descendant.

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The Man Who Discovered Greenhouse Gases

Image: John Tyndall’s discovery that gases could trap heat provided the first hints of the mechanism behind climate change (Image: 1873, The Graphic)

From New Scientist:

As an antidote to this year's Darwin-mania, we celebrate a piece of science from 1859 that wasn't remotely controversial at the time, but which underpins the hottest political potato of our era: climate change. In May 1859, six months before the publication of On the Origin of Species, Irish physicist John Tyndall proved that some gases have a remarkable capacity to hang onto heat, so demonstrating the physical basis of the greenhouse effect. Charles Darwin had journeyed round the world and ruminated for 20 years before presenting his inflammatory ideas on evolution. Tyndall spent just a few weeks experimenting in a windowless basement lab in London.

"THE scene was one of the most wonderful I had ever witnessed. Along the entire slope of the Glacier des Bois, the ice was cleft and riven into the most striking and fantastic forms. It had not yet suffered much from the warming influence of the summer weather, but its towers and minarets sprang from the general mass with clean chiselled outlines." John Tyndall was entranced by the Alps, in particular the great glaciers that creaked and groaned as they crept down the mountains. He found the Mer de Glace especially captivating: the largest glacier in France was a deep river of ice that stretched down the north slope of Mont Blanc and spilled out into the Chamonix valley near the hamlet of Les Bois.

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‘90% Of The Last Million Years, The Normal State Of The Earth’s Climate Has Been An Ice Age’

From Watts Up With That?

Those who ignore the geologic perspective do so at great risk. In fall of 1985, geologists warned that a Columbian volcano, Nevado del Ruiz, was getting ready to erupt. But the volcano had been dormant for 150 years. So government officials and inhabitants of nearby towns did not take the warnings seriously. On the evening of November 13, Nevado del Ruiz erupted, triggering catastrophic mudslides. In the town of Armero, 23,000 people were buried alive in a matter of seconds.

For ninety percent of the last million years, the normal state of the Earth’s climate has been an ice age. Ice ages last about 100,000 years, and are punctuated by short periods of warm climate, or interglacials. The last ice age started about 114,000 years ago. It began instantaneously. For a hundred-thousand years, temperatures fell and sheets of ice a mile thick grew to envelop much of North America, Europe and Asia. The ice age ended nearly as abruptly as it began. Between about 12,000 and 10,000 years ago, the temperature in Greenland rose more than 50 °F.

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Obsession With Naked Women Dates Back 35,000 Years

Side and front views of the Venus of Hohle Fels. Credit: H. Jensen; Copyright University of Tubingen

From Live Science:

If human culture seems obsessed with sex lately, it's nothing new. Archaeologists have discovered the oldest known artistic representation of a woman — a carved ivory statue of a naked female, dating from 35,000 years ago.

The figurine, unearthed in September 2008 in Hohle Fels Cave in southwestern Germany, may be the oldest known example of figurative art, meaning art that is supposed to represent and resemble a real person, animal or object. The discovery could help scientists understand the origins of art and the advent of symbolic thinking, including complicated language.

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Changes In The Sun Are Not Causing Global Warming, New Study Shows

With the U.S. Congress beginning to consider regulations on greenhouse gases, a troubling hypothesis about how the sun may impact global warming is finally laid to rest. (Credit: iStockphoto)

From Science Daily:

ScienceDaily (May 12, 2009) — With the U.S. Congress beginning to consider regulations on greenhouse gases, a troubling hypothesis about how the sun may impact global warming is finally laid to rest.

Carnegie Mellon University's Peter Adams along with Jeff Pierce from Dalhousie University in Halifax, Canada, have developed a model to test a controversial hypothesis that says changes in the sun are causing global warming.

The hypothesis they tested was that increased solar activity reduces cloudiness by changing cosmic rays. So, when clouds decrease, more sunlight is let in, causing the earth to warm. Some climate change skeptics have tried to use this hypothesis to suggest that greenhouse gases may not be the global warming culprits that most scientists agree they are.

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Could Wolfram|Alpha Sway Google Regulators?

From Wired News/Epicenter:

News Analysis — Wolfram|Alpha, a company whose product you have never used, may turn out to be Google’s best friend.

For those who haven’t heard yet, Wolfram|Alpha is a much-hyped, badly-named computational search engine that gives real answers to queries such as “internet users in Europe.” It pulls off the techie magic by using structured data sets, rather than messy web pages, as its index. Its demo has impressed quite a few tech journalists, including the originally skeptical Danny Sullivan, one of the crown princes of search engine journalism. See the screenshot below from Read/Write/Web:

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Brain's Problem-solving Function At Work When We Daydream

These are fMRI brain scans from UBC Mind Wandering Study.
(Credit: Courtesy of Kalina Christoff)

From Science Daily:

ScienceDaily (May 12, 2009) — A new University of British Columbia study finds that our brains are much more active when we daydream than previously thought.

The study, published in the Proceedings of the National Academy of Sciences, finds that activity in numerous brain regions increases when our minds wander. It also finds that brain areas associated with complex problem-solving – previously thought to go dormant when we daydream – are in fact highly active during these episodes.

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Brain's Willpower Spot Found

From Live Science:

When healthy eaters choose broccoli over a Butterfinger, they use a small region in their brains that indulgers don't use.

That bundle of cells is a clue to the biology of willpower, a new study finds. Like a wagging finger in our heads, the region admonishes us to consider long-term benefits over instant rewards when we make decisions.

"This is the first time people have looked at the mechanism of self-control in people who are making real-life decisions," said Todd Hare, a Caltech neuroscientist who led the study.

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