Thursday, December 17, 2009

Close-Up Photos Of Dying Star Show Our Sun's Fate

Chi Cygni, shown in this artist's conception, is a red giant star nearing the end of its life. As it runs out of fuel, it pulses in and out, beating like a giant heart and ejecting shells of material. Observations by the Infrared Optical Telescope Array found that, at minimum radius, Chi Cygni shows marked inhomogeneities due to roiling "hotspots" on its surface. (Credit: ESO/L. Calçada)

From Science Daily:

Science Daily (Dec. 17, 2009) — About 550 light-years from Earth, a star like our Sun is writhing in its death throes. Chi Cygni has swollen in size to become a red giant star so large that it would swallow every planet out to Mars in our solar system. Moreover, it has begun to pulse dramatically in and out, beating like a giant heart. New close-up photos of the surface of this distant star show its throbbing motions in unprecedented detail.

"This work opens a window onto the fate of our Sun five billion years from now, when it will near the end of its life," said lead author Sylvestre Lacour of the Observatoire de Paris.

Read more ....

Geeks Drive Girls Out of Computer Science


From Live Science:

The stereotype of computer scientists as geeks who memorize Star Trek lines and never leave the lab may be driving women away from the field, a new study suggests.

And women can be turned off by just the physical environment, say, of a computer-science classroom or office that's strewn with objects considered "masculine geeky," such as video games and science-fiction stuff.

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The Science Behind James Cameron's Avatar



From Popular Mechanics:

It's the year 2154 and humankind has reached out to the stars in director James Cameron's new science-fiction epic Avatar. The movie takes us to an exotic jungle moon called Pandora where humans are the aliens and a clash is brewing with the natives. Cameron, who has served as an adviser to NASA to investigate a camera for a Mars mission, is known for taking the science in his flicks very seriously. So how did he do? Here we check on some of the movie's scientific bona fides with top researchers in their respective fields to see where artistic license and scientific plausibility meld.

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The Amalgamated Flying Saucer Club Of America, Headquartered In Los Angeles, Released This Photo, Taken By A Member, Reportedly Showing A Flying Sauce

The Amalgamated Flying Saucer Club of America, headquartered in Los Angeles, released this photo, taken by a member, reportedly showing a flying saucer estimated at 70 ft. in diameter. Bettmann / CORBIS

From Time Magazine:

The year 1969 was a great time for hippies, a bad year for Beatles fans and an even worse year for UFO enthusiasts. Forty years ago, on Dec. 17th, the U.S. Air Force officially shuttered Project Blue Book, the agency's third and final attempt to investigate extraterrestrial sightings and the country's longest official inquiry into UFOs. From 1952 until 1969, more than 12,000 reports were compiled and either classified as "identified" — explained by astronomical, atmospheric or artificial phenomenon — or "unidentified," which made up just 6% of the accounts. Because of such a meager percentage and an overall drop in sightings, officials axed the program and ended the research. So much for the truth being out there.

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Flowers Found In Bronze Age Grave

In August a four tonne capstone was removed to reveal a burial chamber
near Forteviot in Perthshire Photo: PA


From The Telegraph:


Grieving relatives have been leaving flowers beside the graves of their loved ones for at least 4,000 years, archeologists have found.


A bunch of meadowsweet blossoms were discovered in a Bronze Age grave at Forteviot, south of Perth.

The find is reported in the journal "British Archaeology", out this week.

Read more ....

Moon Poses Radiation Risk To Future Travelers

Astronaut Edwin E 'Buzz' Aldrin Jr. walks on the surface of the moon. Future lunar travelers face a radiation dose 30 percent to 40 percent higher than originally expected from radioactive lunar soil. NASA/Neil Armstrong

From Discovery News:

Rather than blocking cosmic rays, the moon itself is a powerful source of radiation, measurements show.

Future lunar explorers counting on the moon to shield themselves from galactic cosmic rays might want to think about Plan B.

In a surprising discovery, scientists have found that the moon itself is a source of potentially deadly radiation.

Measurements taken by NASA's Lunar Reconnaissance Orbiter show that the number of high energy particles streaming in from space did not tail off closer to the moon's surface, as would be expected with the body of the moon blocking half the sky.

Read more ....

Military Could Use iPhones To Track Friends, Enemies in War


From The Gadget Lab:

What if the iPhone could be used in war? True, it’s primarily a consumer product, but it’s versatile and always connected to the internet (assuming you have network reception) — so why not?

That’s the idea behind new iPhone apps being showcased by Raytheon, a military contractor, at the Intelligence Warfighting Summit in Tucson. One app called the One Force Tracker will provide live data tracking the location of friends and foes on real-time maps. The app will also be used to communicate with other units.

Read more ....

My Comment: This is just another example on the revolution that is occurring in the intelligence community. The key is to know who are foes and who are not .... and provide this information to the men and women in the field. What was science fiction a few years ago .... is rapidly becoming reality today.

More Homes Seen Dumping Landlines

Photo: From iStockphoto

From CBS News:

Age And Location Biggest Factor In Decisions To Abandon Landlines.

(AP) The number of households with cell phones but no landlines continues to grow, but the recession doesn't seem to be forcing poor cellular users to abandon their traditional wired phones any faster than are higher-income people.

The finding, from data compiled by the federal Centers for Disease Control and Prevention, suggests that when it comes to telephone habits, peoples' decisions are affected more by age and where they live than by their economic situations.

Read more ....

Climate Change Is Nature's Way -- A Commentary

From The Wall Street Journal:

Climate Change Is Nature's Way.

Climate change activists are right. We are in for walloping shifts in the planet's climate. Catastrophic shifts. But the activists are wrong about the reason. Very wrong. And the prescription for a solution—a $27 trillion solution—is likely to be even more wrong. Why?

Climate change is not the fault of man. It's Mother Nature's way. And sucking greenhouse gases from the atmosphere is too limited a solution. We have to be prepared for fire or ice, for fry or freeze. We have to be prepared for change.

Read more ....

'Jesus-Era' Burial Shroud Found

From The BBC:

A team of archaeologists and scientists says it has, for the first time, found pieces of a burial shroud from the time of Jesus in a tomb in Jerusalem.

The researchers, from Hebrew University and institutions in Canada and the US, said the shroud was very different from the controversial Turin Shroud.

Some people believe the Turin Shroud to have been Christ's burial cloth, but others believe it is a fake.

The newly found cloth has a simpler weave than Turin's, the scientists say.

Read more ....

Will 2010 Be The Breakout Year For E-Book Readers?

Mike Erickson, of Webster Groves, checks out a Sony Reader an e-book at Best Buy, Friday aternoon. "I'm just waiting to see what other kinds of books will be available." Erickson said. Erickson is at the Best Buy in Brentwood. (Dawn Majors/P-D)

From Stltoday:

When Sheila Effan found a Kindle electronic reader among her gifts last Christmas, one of her first thoughts was whether she'd miss the smell and feel of real paper. She got her answer five months later.

That's when a friend lent her a paperback. She lugged it around for a couple of days before tiring of the burden.

"I got annoyed with it. So I just downloaded it to my Kindle," Effan said. "I thought I would miss books. But I don't."

Oh, how the folks behind Amazon.com's Kindle, Sony's Reader and Barnes & Noble's Nook love the sound of that.

Read more ....

Climate Change Does Not Always Lead to Conflict

From Science Daily:

Science Daily (Dec. 17, 2009) — The climate change that took place in Mesopotamia around 2000 BC did not lead to war, but in fact led to the development of a new shared identity. Although increasing drought often leads to competition and conflict, there seems to be no evidence of this in northern Mesopotamia according to Dutch researcher Arne Wossink.

Wossink studied how the farmers and nomads in northern Mesopotamia -- currently the border area between Turkey, Syria and Iraq -- responded to the changes in climate that took place between 3000 and 1600 BC. He expected to find considerable evidence of competition: as food and water became scarcer the natural result could well be conflict. He discovered, however, that the farmers developed much closer bonds with the semi-nomadic cattle farmers.

Read more
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Earth's Upper Atmosphere Cooling Dramatically

New research shows that the outermost layer of the atmosphere will lose 3 percent of its density over the coming decade, a sign of the far-reaching impacts of greenhouse gas emissions. As the density declines, orbiting satellites experience less drag. Credit: ©UCAR.

From Live Science:

SAN FRANCISCO — When the sun is relatively inactive — as it has been in recent years — the outermost layer of Earth's atmosphere cools dramatically, new observations find.

The results could help scientists better understand the swelling and shrinking of our planet's atmosphere, a phenomenon that affects the orbits of satellites and space junk.

Read more
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McDonald's Free Wi-Fi Part Of Growing Trend


From Computerworld:

Everybody wants free Wi-Fi, and McDonald's Corp. is responding to that demand with Wednesday's announcement that more than 11,000 of its U.S. restaurants will have free Wi-Fi in January.

"We've had Wi-Fi working in our restaurants for five years under the pay-to-play model, but now is the time, with the ubiquity of Wi-Fi devices -- including handhelds and laptops -- to extend that offer," McDonald's USA CIO David Grooms said in an interview today.

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A Global 'Planetary Skin' Network Will Monitor Earth's Resources

Planetary Skin Satellites join forces with drones and
surface sensors to monitor the Earth NASA/Cisco


From Popular Science:

NASA and Cisco officially launch a $100 million effort to integrate ground, sea, air and space sensors.

Every day, farmers and legislators make billions of small- and large-scale decisions that affect the Earth's resources, and typically rely on thousands of fragmented sources of data. Now NASA has joined tech firm Cisco in creating a $100 million "Planetary Skin" that would integrate all the Earth data from satellites, aerial drones and ground sensors, and put it in the hands of any decisionmakers who need it.

Read more ....

Inconvenient Truth For Al Gore As He's Caught Exaggerating The Threat Of Global Warming... Again

Spin row: Former U.S. Vice President Al Gore makes his controversial speech during a presentation of a report on the melting of the Greenland ice sheet, at the Bella centre of Copenhagen yesterday

From The Daily Mail:

Green crusader Al Gore was at the centre of a new spin row last night after he was caught out for a second time exaggerating the threat of global warming.

In a keynote speech at the Copenhagen talks, the former U.S. vice-president claimed the North Pole could be completely free of ice by the middle of the next decade.

He claimed a study showed a ‘75 per cent chance’ that the Arctic could be ice-free in the summer months within five to seven years.

Read more ....

Michelangelos Make Smart Lovers

From The Science Blog:

EVANSTON, Ill. --- Is that really Bob? You've seen him hundreds of mornings for the last 10 years at local coffee shops. Since he started dating Sara, he looks you in the eye -- and smiles. Sara takes every opportunity to let coffee shop cronies know that Bob is her guy and to gush about how funny he is. And he is. Who knew?

Think of Sara like Michelangelo chipping away at a block of marble to release the ideal figure slumbering within.

A new international review of seven papers on "the Michelangelo phenomenon" shows that when close partners affirm and support each other's ideal selves, they and the relationship benefit greatly.

Read more ....

More Powerful Superconducting Magnets will Make More Powerful Particle Colliders


From The Next Big Future:

The completed long quadrupole shell magnet (LQS01) in the Building 77A assembly area of Berkeley Lab's Engineering Division.

The Large Hadron Collider (LHC) at CERN has just started producing collisions, but scientists and engineers have already made significant progress in preparing for future upgrades beyond the collider’s nominal design performance, including a 10-fold increase in collision rates by the end of the next decade and, eventually, higher-energy beams.

Read more ....

Most Earth-Like Extrasolar Planet Found Right Next Door


From Wired Science:

Meet GJ 1214b, the most Earth-like planet ever found outside our solar system.

It’s not exactly Earth’s twin: It’s about six times bigger, a whole lot hotter and made mostly of water. But compared to the giant gas balls that account for nearly every other extrasolar planet ever found, it’s pretty darn close. And through a fortunate happenstance of cosmic geometry, astronomers will be able to study GJ 1214b in great detail.

“If you want to describe in one sentence what this planet is, it’s a big, hot ocean,” said Harvard University astronomer David Charbonneau. “We can even study its atmosphere. This planet will occupy us for years. That’s part of what’s so exciting about it.”

Read more ....

Dying Star Previews Our Own Sun's Fate

Artist's impression of Chi Cygni. As the red giant star runs out of fuel, it pulses in and out, beating like a giant heart and ejecting shells of material. Credit: ESO/L. Calçada

From Cosmos:

CAMBRIDGE: New images of the surface of a distant, dying star offer a preview of the ultimate fate of our own Sun, French scientists say.

"This work opens a window onto the fate of our Sun five billion years from now, when it will near the end of its life," said lead author Sylvestre Lacour of the Observatoire de Paris.

About 550 light-years from Earth, a star like our Sun is writhing in its death throes. Chi Cygni has swollen in size to become a red giant star so large that it would swallow every planet out to Mars in our solar system.

Moreover, it has begun to pulse dramatically in and out, beating like a giant heart.

Read more ....