Thursday, June 25, 2009

Buzz Aldrin To NASA: U.S. Space Policy Is On The Wrong Track

Platon photographed Buzz Aldrin for PM in Los Angeles, May 2009. “It’s mankind’s destiny to walk on another planet,” Aldrin says. “We can achieve it, but we’ve got to have the right plan.” (Photograph by Platon)

From Popular Mechanics:

Apollo 11 astronaut Buzz Aldrin has a problem with NASA’s current manned space plan: Namely, the five-year gap between the shuttle’s scheduled retirement next year and the debut of the Ares I rocket and the Orion spacecraft, which will take us no further than the moon—a place we’ve already been. Aldrin thinks NASA can do better. His plan is to scrap Ares I, stretch out the remaining six shuttle flights and fast-track the Orion to fly on a Delta IV or Atlas V. Then, set our sites on colonizing Mars. Here, Buzz challenges NASA to take on his bolder mission.

I had a splendid career at NASA as an astronaut in the Gemini and Apollo programs. The capstone, of course, was my moonwalk on the Sea of Tranquility 40 years ago. I have only two regrets from my NASA days, and both were my own fault: I failed to speak out when I saw bad decisions being made. The first came in 1966, when NASA, in a fit of excessive caution, canceled the Astronaut Maneuvering Unit (AMU), the Buck Rogers–style jet backpack I was scheduled to try out on Gemini 12. Despite difficulties with the AMU on Gemini 9, I was very confident I could make it work. But like a good astronaut, I kept my mouth shut, and I’ve regretted it ever since. As it turned out, it took 18 years for NASA to develop another jet pack, the Manned Maneuvering Unit, used on three space shuttle missions in 1984.

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Oldest Musical Instrument Found

Flute: The earliest modern humans in Europe carved this 8.5-inch flute from a vulture bone more than 35,000 years ago.

From Popsci.com:

Bird-bone flute hints that Paleolithic humans banded together to the demise of Neanderthals

How’s this for classic rock? German scientists have unearthed the oldest-known musical instrument fashioned by human hands. It’s a delicate flute made from the wing bone of a vulture that dates to at least 35,000 years old—just after the first modern humans entered Europe. The team discovered the flute littered among a trove of early-human loot at a mountain cave in southwest Germany. It included a few other flute fragments and a female figurine carved from the ivory tusks of a mammoth with body proportions that are beyond Rubenesque.

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Ice On Fire: The Next Fossil Fuel


From The New Scientist:

DEEP in the Arctic Circle, in the Messoyakha gas field of western Siberia, lies a mystery. Back in 1970, Russian engineers began pumping natural gas from beneath the permafrost and piping it east across the tundra to the Norilsk metal smelter, the biggest industrial enterprise in the Arctic.

By the late 70s, they were on the brink of winding down the operation. According to their surveys, they had sapped nearly all the methane from the deposit. But despite their estimates, the gas just kept on coming. The field continues to power Norilsk today.

Where is this methane coming from? The Soviet geologists initially thought it was leaking from another deposit hidden beneath the first. But their experiments revealed the opposite - the mystery methane is seeping into the well from the icy permafrost above.

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Longer Life Linked To Specific Foods In Mediterranean Diet

Eating more vegetables, fruits, nuts, pulses and olive oil, and drinking moderate amounts of alcohol, while not consuming a lot of meat or excessive amounts of alcohol is linked to people living longer. (Credit: iStockphoto)

From Science Daily:

ScienceDaily (June 24, 2009) — Some food groups in the Mediterranean diet are more important than others in promoting health and longer life according to new research published on the British Medical Journal website.

Eating more vegetables, fruits, nuts, pulses and olive oil, and drinking moderate amounts of alcohol, while not consuming a lot of meat or excessive amounts of alcohol is linked to people living longer.

However, the study also claims, that following a Mediterranean diet high in fish, seafood and cereals and low in dairy products were not indicators of longevity.

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Ancient Mummy's Face Recreated

Chicago artist Joshua Harker used traditional forensic methods to build layers of fat, muscle and flesh upon the skull images of a mummy made with CT scans at the University of Chicago. Credit: Joshua Harker for the University of Chicago

From Live Science:

The face of a long-dead mummy has been brought back to life through forensic science.

Based on CT-scans of the skull of the ancient Egyptian mummy Meresamun, two artists independently reconstructed her appearance and arrived at similar images of the woman.

Meresamun, a temple singer in Thebes (ancient Luxor) at about 800 B.C., died of unknown causes at about age 30. Until recently, modern viewers of the University of Chicago-owned mummy have had to guess about the woman behind the mask.

Now scientists think they have a pretty good idea of what she looked like.

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Wednesday, June 24, 2009

Life On Saturn? Caverns Of Salt Water May Lie Beneath Frozen Surface Of Planet's Moon

Evidence: This picture shows water vapour jets
erupting from Saturn's icy moon, Enceladus

From The Daily Mail:

Alien life could have evolved on one of Saturn's moons, scientists say.

They have found evidence that seas may lie beneath the frozen surface of Enceladus - the planet's sixth biggest moon.

It follows the discovery of a giant plume of salt water and ice spurting hundreds of miles into space from the moon's surface.

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Evolution Faster When It's Warmer

The results could help explain why the warm tropics are so species-rich

From The BBC:

Climate could have a direct effect on the speed of "molecular evolution" in mammals, according to a study.

Researchers have found that, among pairs of mammals of the same species, the DNA of those living in warmer climates changes at a faster rate.

These mutations - where one letter of the DNA code is substituted for another - are a first step in evolution.

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Can Wind Power Get Up to Speed?

The Burbo Bank Offshore Wind Farm in Liverpool Bay, England
Christopher Furlong / Getty

From Time Magazine:

Pop quiz: what source of power doesn't come out of the ground, doesn't burn and isn't radioactive? Hint: it contributed the most new electricity generation to the U.S. grid in 2008.

The answer is wind power, the technology that has become synonymous with going green. Companies that started out small, like Denmark's Vestas and India's Suzlon Energy, have become multinational giants selling steel and fiberglass wind turbines; even blue chippers like General Electric have identified wind power as a major revenue source for the future, while the construction and installation of wind turbines will employ workers here in the U.S. Investing in wind power, said President Barack Obama at a turbine factory in Iowa on Earth Day, "is a win-win. It's good for the environment; it's great for the economy."

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The First Europeans Were Cannibals: Archaeologists

Photo: Skull named Miguelon, estimated to be 400,000 years old and the most complete skull of an Homo heidelbergensis ever found, is seen at the Atapuerca archaeological site, in the Atapuerca mountains in northern Spain. In 2007 a historic discovery of the fossilised remains of the 'first european' human was made at the site. (AFP/File/Philippe Desmazes)

From Yahoo News/AP:

ATAPUERCA, Spain (AFP) – The remains of the "first Europeans" discovered at an archaeological site in northern Spain have revealed that these prehistoric men were cannibals who particularly liked the flesh of children.

"We know that they practiced cannibalism," said Jose Maria Bermudez de Castro, one of the co-directors of the Atapuerca project, a UNESCO World Heritage Site.

A study of the remains revealed that they turned to cannibalism to feed themselves and not as part of a ritual, that they ate their rivals after killing them, mostly children and adolescents.

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Giant Prehistoric Kangaroos Wiped Out By Hungry Ice Age Hunters

Artist's illustration of the extinct Procoptodon goliah which roamed around Australia 45,000 years ago. (Artist Peter Trusler/Australian Postal Corporation)

From Times Online:

It stood tall at 6’5, weighed over 500lbs, had the face of a koala and the body of a sturdy kangaroo. And apparently it was delicious.

Scientists think they have discovered the reason behind the demise of the prehistoric Australian marsupial Procoptodon goliah – better known as the giant, short-snouted kangaroo. They say it was not climate change, as has always been assumed, but hungry Ice Age hunters.

The animal – about three times bigger than a modern-day kangaroo and with slightly different features - was one of many Ice-Age megafauna whose demise has long been debated among experts, but usually put down to the changing environment.

However an international team of scientists, led by Gavin Prideaux from Flinders University in South Australia, has discovered a different theory behind the reason the animal became extinct 45,000 years ago.

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My Comment: I am hungry.

The New Nuclear Revolution -- A Commentary


From The Wall Street Journal:

Safe fission power is our future -- if regulators allow it.

After the Internet, the next big thing will be cheap and clean energy. Coal, oil and gas pollute and are increasingly expensive: We need alternatives. Because nuclear energy (stored among particles inside atoms) is millions of times more dense than chemical energy (stored among atoms in molecules), nuclear reactors belong high on our long list of energy alternatives.

Nuclear energy is released during fission and fusion. During fission, large elements like uranium are split into smaller elements. During fusion, small elements like hydrogen are combined into larger elements. These two processes have occurred naturally since the beginning of time -- 13.7 billion years. The Earth is warmed naturally by its own nuclear fission reactors within and also by the sun, that big nuclear fusion reactor.

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Not Space Junk Yet: Mars Rovers Carry On Despite Age, Ailments


From McClatchy News:

WASHINGTON — In one of the most remarkable engineering feats of our time, the aging Mars rovers Spirit and Opportunity are still taking orders and sending home pictures more than five years after they were supposed to turn into slabs of space junk.

Opportunity is still rolling along, but Spirit is hung up on a rock and may be reaching the end of its travels. The rovers' masters at NASA's Jet Propulsion Laboratory in Pasadena, Calif., hope they can nurse either or both of them through another harsh Martian winter.

"I'm very attached to them," said John Callas, the rover project manager. "They exhibit human-like qualities. They have trials and tribulations. Like aging humans, they've got arthritic joints, they forget things, their vision is not what it used to be. When something's not right, you get that sinking feeing in your stomach.''

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Girl Who Doesn't Age Baffles Doctors

Photo: Brooke Greenberg is 16 years old, but looks like a 16-month-old. (ABC America)

From Ninemsm:

A 16-year-old girl who is the size of an infant and has the mental capacity of a toddler continues to baffle doctors in the US.

Medical experts believe Brooke Greenberg suffers from some kind of genetic mutation that shapes the way she ages, leaving her with the perpetual appearance of a baby.

The exact cause of the phenomenon has not been pinpointed.

Doctors say Brooke is not growing in a coordinated way, with her body parts out of synchronisation, as if each has a mind of its own.

"Why doesn't she age?" her father, Howard Greenberg, asked on US network ABC.

"Is she the fountain of youth?"

Brooke's mother Melanie Greenberg, 48, said she was so used to people asking how old her daughter is she did not even try to explain.

"My system always has been to turn years into months," Mrs Greenberg said.

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Tuesday, June 23, 2009

When Wild Animals Attack: An Encounter With A Rabid Skunk

(Photograph by Tom Brakefield/Getty Images)

From Popular Mechanics:

Animal encounters on our turf are on the rise—and it's not just big animals like mountain lions, bears and alligators. Here, TheDailyGreen.com's Brian Clark Howard revisits the time a rabid skunk attacked him while he camped in a friend's yard, just 1 hour away from New York City.

I was jerked awake in my sleeping bag by a sharp, pinching pain centered on my nose. My eyes failed me, and I teetered on the edge of consciousness. I felt viscous liquid streaming down my neck. The only tangible thought I could muster was fear that my nose must have become stuck in a zipper. As a strained throat would later attest, I screamed hysterically.

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A Magnetic Machine Plucks Pathogens From Blood

Nonfatal Attraction: An electromagnet pulls out 80 percent
of an infectious pathogen Medi-mation


From Popsci.com:

A new treatment could save some of the hundreds of thousands of Americans dying sepsis-related deaths every year.

If your uncle says he's getting magnetic therapy, you might feel the urge to tell him to save his money instead for that tinfoil hat to keep the CIA from reading his mind. But if he's being hooked up to Don Ingber's magnet machine, it just might save his life.

Ingber's device magnetizes microbes and draws them out of the blood. It could save some of the 210,000 Americans—mostly newborns and the elderly—who die sepsis-related deaths every year. Sepsis sets in when bacteria or fungi invade the blood, which can cause organ failure before drugs have time to take effect. "Traditionally, you prescribe antibiotics and pray," says Ingber, a vascular biologist at Harvard Medical School and Children's Hospital. His machine operates more quickly.

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Work Begins On World's Deepest Underground Lab


From Yahoo News/AP:

SIOUX FALLS, S.D. – Far below the Black Hills of South Dakota, crews are building the world's deepest underground science lab at a depth equivalent to more than six Empire State buildings — a place uniquely suited to scientists' quest for mysterious particles known as dark matter.

Scientists, politicians and other officials gathered Monday for a groundbreaking of sorts at a lab 4,850 foot below the surface of an old gold mine that was once the site of Nobel Prize-winning physics research.

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Language May Be Key To Theory Of Mind

From New Scientist:

How blind and deaf people approach a cognitive test regarded as a milestone in human development has provided clues to how we deduce what others are thinking.

Understanding another person's perspective, and realising that it can differ from our own, is known as theory of mind. It underpins empathy, communication and the ability to deceiveMovie Camera – all of which we take for granted. Although our theory of mind is more developed than it is in other animals, we don't acquire it until around age four, and how it develops is a mystery.

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Huge Pre-Stonehenge Complex Found via "Crop Circles"

Etched into crops, the outlines of Bronze Age burial mounds surround a roughly 190-foot (57-meter) circular Stone Age temple site about 15 miles (24 kilometers) from Stonehenge in southern England in an undated aerial photo.Discovered during a routine aerial survey by English Heritage, the U.K. government's historic-preservation agency, the "crop circles" are the results of buried archaeological structures interfering with plant growth. True crop circles are vast designs created by flattening crops. The features are part of a newfound 500-acre (200-hectare) prehistoric ceremonial site which was unknown until the aerial survey, rchaeologists announced in June 2009. Photograph by Damian Grady/English Heritage

From National Geographic:


Given away by strange, crop circle-like formations seen from the air, a huge prehistoric ceremonial complex discovered in southern England has taken archaeologists by surprise.

A thousand years older than nearby Stonehenge, the site includes the remains of wooden temples and two massive, 6,000-year-old tombs that are among "Britain's first architecture," according to archaeologist Helen Wickstead, leader of the Damerham Archaeology Project.

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Social Competition May Be Reason For Bigger Brain

Professor David Geary finds that competitive ancestors may be blamed for today's big brain. (Credit: Image courtesy of University of Missouri-Columbia)

From Science Digest:

ScienceDaily (June 23, 2009) — For the past 2 million years, the size of the human brain has tripled, growing much faster than other mammals. Examining the reasons for human brain expansion, University of Missouri researchers studied three common hypotheses for brain growth: climate change, ecological demands and social competition. The team found that social competition is the major cause of increased cranial capacity.

To test the three hypotheses, MU researchers collected data from 153 hominid (humans and our ancestors) skulls from the past 2 million years. Examining the locations and global climate changes at the time the fossil was dated, the number of parasites in the region and estimated population density in the areas where the skulls were found, the researchers discovered that population density had the biggest effect on skull size and thus cranial capacity.

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Amazing Volcano Photo Reveals Shock Wave

Sarychev Peak on Matua Island is one of the most active volcanoes in the Kuril Island chain, northeast of Japan. Astronauts took this photo of an eruption on June 12. The plume appears to be a combination of brown ash and white steam. The vigorously rising plume gives the steam a bubble-like appearance; the surrounding atmosphere has been shoved up by the shock wave of the eruption. Credit: NASA/ISS/Earth Observatory

From Live Science:

An amazing new picture from space reveals a volcanic eruption in its earliest stage, with a huge plume of ash and steam billowing skyward and creating a shock wave in the atmosphere.

Sarychev Peak on Matua Island is one of the most active volcanoes in the Kuril Island chain, northeast of Japan.

The new photo was taken June 12 from the International Space Station. NASA says volcano researchers are excited about the picture "because it captures several phenomena that occur during the earliest stages of an explosive volcanic eruption."

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