Meteor Show Reaches Dazzling Peak

From The BBC:

Skygazers are observing a dazzling sky show, as the annual Perseid meteor shower reaches its peak.

No special equipment is required to watch the shower, which occurs when Earth passes through a stream of dusty debris from the comet Swift-Tuttle.

Budding astronomers are advised to lie on a blanket or a reclining chair to get the best view.

The National Trust has released online guides to seven top Perseid viewing sites in the UK.

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Killer Whales Visit 'Social Clubs'

From BBC:

Killer whales create and visit social clubs just like people do, scientists have discovered.

Up to 100 fish-eating killer whales come together in the Avacha Gulf, off the coast of Russia.

But no-one knew why the whales form these huge superpods, when they normally live in smaller groups.

Now scientists report in the Journal of Ethology that these groups act as clubs in which the killer whales form and maintain social ties.

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The Long Legacy Of Peru's "Mine Of Death"

Image from Chemistry World blog

From Earth Magazine:

The Inca knew there was something sinister about the cinnabar they hauled out of the ground at Huancavelica in Peru hundreds of years ago. They called the mine the Mine of Death. Now, a new study has exposed a 3,500-year history of mercury pollution from the cinnabar mines, a much longer legacy than researchers had previously realized.

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Previous Post: Mercury pollution from ancient Inca mines -- Chemistry World Blog

You Deleted Your Cookies? Think Again

From Epicenter:

More than half of the internet’s top websites use a little known capability of Adobe’s Flash plugin to track users and store information about them, but only four of them mention the so-called Flash Cookies in their privacy policies, UC Berkeley researchers reported Monday.

Unlike traditional browser cookies, Flash cookies are relatively unknown to web users, and they are not controlled through the cookie privacy controls in a browser. That means even if a user thinks they have cleared their computer of tracking objects, they most likely have not.

What’s even sneakier?

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Planet Smash-Up Sends Vaporized Rock, Hot Lava Flying

This artist's concept shows a celestial body about the size of our moon slamming at great speed into a body the size of Mercury. NASA's Spitzer Space Telescope found evidence that a high-speed collision of this sort occurred a few thousand years ago around a young star, called HD 172555, still in the early stages of planet formation. The star is about 100 light-years from Earth. (Credit: NASA/JPL-Caltech)

From Science Daily:

ScienceDaily (Aug. 12, 2009) — NASA's Spitzer Space Telescope has found evidence of a high-speed collision between two burgeoning planets around a young star.

Astronomers say that two rocky bodies, one as least as big as our moon and the other at least as big as Mercury, slammed into each other within the last few thousand years or so -- not long ago by cosmic standards. The impact destroyed the smaller body, vaporizing huge amounts of rock and flinging massive plumes of hot lava into space.

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Men Not Choosy In One-Night Stands

From Live Science:

It's no secret that men are more likely than women to jump into the sack. But a new study adds some twists to the rules of such casual sex.

The research suggests men are far less choosy about the attractiveness of a potential one-night stand. For women to be tempted into considering casual sex, the guy better be a hottie.

These results, based not on real-life encounters but rather on interviews, match with past research showing that men lower their standards when it comes to one-night stands. And it turns out, from the new study, women raise their standards.

Read more ....

Mediterranean-Style Diet And Exercise 'Cuts Chances Of Alzheimer's'

From The Telegraph:

Following a Mediterranean-style diet and exercising regularly can cut the chances of developing Alzheimer's by as much as 60 per cent, a new study shows.
The findings add to a growing body of evidence that following a healthy lifestyle can offer protection against the devastating disease.

Experts warn that this is crucial because there are few ways to treat the condition once it develops.

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Are We On The Brink Of Creating A Computer With A Human Brain?

Professor Markram claims he plans to build an electronic human brain 'within the next ten years'

From The Daily Mail:

There are only a handful of scientific revolutions that would really change the world. An immortality pill would be one. A time machine would be another.
Faster-than-light travel, allowing the stars to be explored in a human lifetime, would be on the shortlist, too.
To my mind, however, the creation of an artificial mind would probably trump all of these - a development that would throw up an array of bewildering and complex moral and philosophical quandaries. Amazingly, it might also be within reach.

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Google Reveals Caffeine: A New Faster Search Engine

The front end of the improved search engine looks no different. It is the back end technology which Google developers hope will noticeably index new content faster. Photo: AP

From The Telegraph:

Google has revealed project “caffeine”, a new test version of its search engine which it claims will be faster and more relevant than ever before.

In the face of increasing innovation and competition in the search market, Google is upping the ante by developing new technology which will speed up indexing search results and create a larger index.

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What A Shower! Catch Up On Meteors With Twitter

The Horsehead Nebula from 'Ancient Light: a Portrait of the Universe' by David Malin

From The Independent:

Astronomy becomes art in a new book of photographs which takes us to parts of the universe our eyes cannot normally see. The results are out of this world, says Hannah Duguid.

In 1609, when Galileo first looked at the universe through a telescope, he was limited by the boundaries of his vision. He could see only what his eye was capable of perceiving. It was not until the birth of photography in the mid-19th century that astronomy was able to progress.

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NASA Falling Short of Asteroid Detection Goals

The team says it is almost certain that a large Baptistina fragment created the 180km Chicxulub crater off the coast of the Yucatan 65 million years ago. The impact that produced this crater has been strongly linked to the mass extinction event that eliminated the dinosaurs. Image from The BBC.

From Wired Science:

Without more funding, NASA will not meet its goal of tracking 90 percent of all deadly asteroids by 2020, according to a report released today by the National Academy of Sciences.

The agency is on track to soon be able to spot 90 percent of the potentially dangerous objects that are at least a kilometer (.6 miles) wide, a goal previously mandated by Congress.

Asteroids of this size are estimated to strike Earth once every 500,000 years on average and could be capable of causing a global catastrophe if they hit Earth. In 2008, NASA’s Near Earth Object Program spotted a total of 11,323 objects of all sizes.

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Last Female Space Shuttle Commander Leaves NASA

Astronaut Pamela Melroy

From Yahoo News/Space:

Astronaut Pamela Melroy, the last-ever female space shuttle commander, is leaving NASA's spaceflying ranks for a new career in private industry.

Melroy is a veteran of three shuttle missions. On her third flight, the STS-120 flight of Discovery in 2007, she became the second woman to command a space shuttle -a role reserved for astronauts who have been trained as pilots, rather than mission specialists.

Despite the significance of her achievement, Melroy said the distinction wasn't a big deal for her.

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GM Claims Chevy Volt Will Get 230 MPG--But How?

The 2011 Chevrolet Volt General Motors

From Popular Science:

General Motors CEO Fritz Henderson says the EPA will certify the Chevrolet Volt with triple-digit mileage. How'd they come up with that?

General Motors calls the Chevrolet Volt an extended-range electric vehicle. That's because the only motive force comes from the electric motor; the gas engine only charges the batteries. In a press conference earlier today, GM's CEO Fritz Henderson said the Volt will have a city mileage figure of 230 miles per gallon--almost five times more efficient than a Prius. But considering the uniqueness of the Volt's powertrain, how did the EPA get that figure?

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A Metal Coating That Repairs Itself

Healing bubbles: Tiny fluid-filled capsules a few hundred nanometers wide are dispersed throughout a thin electroplated metal layer. The capsules could be filled with polymers to make metal coatings that repair themselves. Credit: Fraunhofer IPA

From Technology Review:

Electroplated metal could be used to make self-healing construction materials, car parts, and machinery.

Airplanes, cars, and ships that don't corrode are the promise of self-healing paint coatings and polymer materials. Now researchers at the Fraunhofer Institute for Manufacturing Engineering and Automation in Stuttgart, Germany have come up with a metal coating that may be able to repair itself after sustaining damage.

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Could Robots Unite Under One Operating System?

Robots Unite: Patch my operating system to 3.0 now, human! Warner Bros.

From Popular Science:

A common robot operating system could lead to a robotics revolution -- scientifically speaking, of course.

Today's robots represent islands unto themselves that don't share either software or hardware with each other. But researchers have begun developing a common operating system that could revolutionize robotics and permit easier collaboration with less reinvention of the proverbial wheel. The change could rival that which rippled through the PC industry when Microsoft's Disk Operating System (DOS), and later Windows, burst onto the scene and became standard.

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Mars, Methane And Mysteries

From Scientific American:

Mars may not be as dormant as scientists once thought. The 2004 discovery of methane means that either there is life on Mars, or that volcanic activity continues to generate heat below the martian surface. ESA plans to find out which it is. Either outcome is big news for a planet once thought to be biologically and geologically inactive.

The methane mystery started soon after December 2003, when ESA's Mars Express arrived in orbit around the red planet. As the Planetary Fourier Spectrometer (PFS) began taking data, Vittorio Formisano, Istituto di Fisica dello Spazio Interplanetario CNR, Rome, and the rest of the instrument team saw a puzzling signal. As well as the atmospheric gases they were anticipating, such as carbon monoxide and water vapour, they also saw methane. "Methane was a surprise, we were not expecting that," says Agustin Chicarro, ESA Mars Lead Scientist. The reason is that on Earth much of the methane in our atmosphere is released by evolved life forms, such as cattle digesting food. While there are ways to produce methane without life, such as by volcanic activity, it is the possible biological route that has focused attention on the discovery.

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What's Luck Got To Do With It? The Math Of Gambling

From New Scientist:

FIVE years ago, Londoner Ashley Revell sold his house, all his possessions and cashed in his life savings. It raised £76,840. He flew to Las Vegas, headed to the roulette table and put it all on red.

The wheel was spun. The crowd held its breath as the ball slowed, bounced four or five times, and finally settled on number seven. Red seven.

Revell's bet was a straight gamble: double or nothing. But when Edward Thorp, a mathematics student at the Massachussetts Institute of Technology, went to the same casino some 40 years previously, he knew pretty well where the ball was going to land. He walked away with a profit, took it to the racecourse, the basketball court and the stock market, and became a multimillionaire. He wasn't on a lucky streak, he was using his knowledge of mathematics to understand, and beat, the odds.

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Experimental Drug Helps Ward Off Osteoporosis

An X-ray of the human shoulder
Photodisc / Getty

From Time Magazine:

An experimental drug has successfully reduced hip and spine fractures in the two largest patient populations at risk for osteoporosis — postmenopausal women and men being treated for prostate cancer — according to two major studies published online on Aug. 11 by the New England Journal of Medicine. The new compound, denosumab, is being reviewed by the Food and Drug Administration. If approved, it has the potential to become a standard treatment for certain patients.

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First Black Holes Born Starving

FROM SCIENCE DAILY

The first black holes in the universe

The simulations were carried out by astrophysicists Marcelo Alvarez and Tom Abel of the Kavli Institute for Particle Astrophysics and Cosmology, jointly located at the Department of Energy’s SLAC National Accelerator Laboratory and Stanford University, and John Wise, formerly of KIPAC and now of NASA Goddard Space Flight Center.
Several popular theories posit that the first black holes gorged themselves on gas clouds and dust in the early universe, growing into the supersized black holes that lurk in the centers of galaxies today. However, the new results, published in The Astrophysical Journal Letters, point to a much more complex role for the first black holes.
"I'm thrilled that we now can do calculations that start to capture the most relevant physics, and we can show which ideas work and which don't," said Abel. "In the next decade, using calculations like this one, we will settle some of the most important issues related to the role of black holes in the universe."

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Bookyards Editor: For more books on astromomy go here...

Men Not Choosy in One-Night Stands

FROM : LIVE SCIENCE

It's no secret that men are more likely than women to jump into the sack.

It's no secret that men are more likely than women to jump into the sack. But a new study adds some twists to the rules of such casual sex.
The research suggests men are far less choosy about the attractiveness of a potential one-night stand. For women to be tempted into considering casual sex, the guy better be a hottie.
These results, based not on real-life encounters but rather on interviews, match with past research showing that men lower their standards when it comes to one-night stands. And it turns out, from the new study, women raise their standards.

MORE.......

Bookyards Editor: For more books on psychology go here...