Stem Cell Study Leads To Breakthrough In Understanding Infertility

Understanding the details of how sperm and egg cells grow will help scientists develop treatments. Photograph: Corbis

From The Guardian:

Hidden stage of human development' is opened up by Stanford University scientists.

Scientists have turned human stem cells into early-stage sperm and eggs in research that promises to give doctors an unprecedented insight into the causes of infertility.

The work will allow researchers to study human reproductive cells from the moment they are created in embryos through to fully-mature sperm and eggs.

Understanding the details of how sperm and egg cells grow will help scientists develop treatments for people who are left infertile when the process goes wrong. The research may also lead to treatments that can correct growth defects before a child is born.

Read more ....

Russian Space Agency Plan To Build NUCLEAR Space Rocket

The Russian Space Agency is using 40-year-old booster rockets to transport astronauts to the International Space Station. Now they plan to go nuclear

From The Daily Mail:

Russia's space agency is planning to build a new spaceship with a nuclear engine, its chief announced yesterday.

Anatoly Perminov told a government meeting that the preliminary design could be ready by 2012 and would take nine years and cost £363million to build.

'The implementation of this project will allow us to reach a new technological level surpassing foreign developments,' Mr Perminov told a meeting discussing space technologies.

Read more ....

Stellar Blast Is Record-Breaker

The redness of the afterglow is indicative of the event's distance

From The BBC:

Astronomers have confirmed that an exploding star spotted by Nasa's Swift satellite is the most distant cosmic object to be detected by telescopes.

In the journal Nature, two teams of astronomers report their observations of a gamma-ray burst from a star that died 13.1 billion light-years away.

The massive star died about 630 million years after the Big Bang.

UK astronomer Nial Tanvir described the observation as "a step back in cosmic time".

Professor Tanvir led an international team studying the afterglow of the explosion, using the United Kingdom Infrared Telescope (UKIRT) in Hawaii.

Read more ....

The Root of Thought: What Do Glial Cells Do?

Glial Cells

From Scientific American:

Nearly 90 percent of the brain is composed of glial cells, not neurons. Andrew Koob argues that these overlooked cells just might be the source of the imagination.

Andrew Koob received his Ph.D. in neuroscience from Purdue University in 2005, and has held research positions at Dartmouth College, the University of California, San Diego, and the University of Munich, Germany. He's also the author of The Root of Thought, which explores the purpose and function of glial cells, the most abundant cell type in the brain. Mind Matters editor Jonah Lehrer chats with Koob about why glia have been overlooked for centuries, and how new experiments with glial cells shed light on some of the most mysterious aspects of the mind.

Read more ....

Muscle-Bound Computer Interface

Photo: Air guitar: Software interprets signals sent from electromyography sensors attached to a forearm, enabling the user to control computer games such as Guitar Hero and Rock Band. Credit: Microsoft

From Technology Review:

Forearm electrodes could enable new forms of hands-free computer interaction.

It's a good time to be communicating with computers. No longer are we constrained by the mouse and keyboard--touch screens and gesture-based controllers are becoming increasingly common. A startup called Emotiv Systems even sells a cap that reads brain activity, allowing the wearer to control a computer game with her thoughts.

Read more ....

Universe's Quantum 'Speed Bumps' No Obstacle For Light

Different wavelengths of light from a distant gamma-ray burst travel at the same speed, down to quantum scales (Illustration: NASA/SkyWorks Digital)

From New Scientist:

A hint that quantum fluctuations in the fabric of the universe slow the speed of light has not been borne out in observations by NASA's Fermi telescope. The measurements contradict a 2005 result that supported the idea that space and time are not smooth.

Einstein's theory of special relativity says that all electromagnetic radiation travels through a vacuum at the speed of light. This speed is predicted to be constant, regardless of the energy of the radiation.

Read more ....

Robot Army Could Explore Space, Researchers Say

From Discover Magazine:

Instead of spending time and money planning a manned mission to Mars, why not send an army of robots into space to do all the work? A fleet of robots could be deployed to explore far-away planets, according to researchers at Caltech’s Visual and Autonomous Exploration Systems Research Laboratory.

From the Telegraph:

Robotic airships and satellites will fly above the surface of the distant world, commanding squadrons of wheeled rovers and floating robot boats…The systems will transform planetary exploration, says [Wolfgang] Fink, who envisages the cybernetic adventurers mapping the land and seascapes of Saturn’s moon, Titan—believed to have lakes of standing liquid—as well as closer planetary neighbors like Mars.

Read more ....

How California's New Water Laws Inform the Coming National Crisis

An old tire lies on a dry stretch of the San Joaquin River below Gravelly Ford, near Mendota in Fresno County. (Photograph by Michael Macor/The Chronicle)

From Popular Mechanics:

California has its share of problems these days; the state carries billions of dollars in debt, drug cartels have made their way in from Mexico and the wild fire season came and went with great force. As if the governor didn't have enough on his plate, California is also in the midst of one of the biggest water crises this nation has ever seen. Farmers and fishing communities, businesses and a growing population are locked in a battle over water rights—scrambling for what has become a dwindling resource. To stop the problem, a task force has studied the Sacramento–San Joaquin River Delta for two years and came up with dozens of proposals to alleviate the water crisis. Here are six of the most prescient proposed items—problems and solutions that may be coming to a local assembly (or a courthouse) near you.

Read more ....

Globalization: Diseases Spreading From Humans To Animals, Study Finds

Staphylococcus aureus.
(Credit: Agricultural Research Service / United States Department of Agriculture)

From Science Daily:

Science Daily (Oct. 28, 2009) — Globalisation and industrialisation are causing diseases to spread from humans to animals, a study has shown.

Researchers from The Roslin Institute of the University of Edinburgh have shown that a strain of bacteria has jumped from humans to chickens.

It is believed to be the first clear evidence of bacterial pathogens crossing over from humans to animals and then spreading since animals were first domesticated some 10,000 years ago.

Read more ....

Why Halloween Terrifies Some Kids

About one out of every 100 kids suffers from phobia of costumed characters. Typically, the fear is rooted in a sense that some harm or danger is going to come from this thing they do not understand. Image credit: stockxpert

From Live Science:

The pitter-patter of little feet running from door to door this Halloween, dressed to the nines in their creepiest costumes sounds, like good old-fashioned fun.

But for some kids, the ghosts, goblins and witches are more terrifying than many adults realize. While mild fear of some costumed character, say Santa Claus, is normal for kids, extreme fears that keep children from going trick-or-treating or to a party at Chuck E. Cheese's, where the man-size mouse could give them a fright, are called phobias.

Read more ....

Fastest Supercomputer in the World Models Dark Matter, HIV Family Tree Simultaneously

Los Alamos' Road Runner Super Computer Meep meep. courtesy of the Department of Energy

From Popular Science:

Petaflop power in action.

In November of last year, scientists at Los Alamos National Laboratory switched on Roadrunner, the world's fastest computer. IBM and the Department of Energy built the machine to model nuclear explosions, but two new studies, both released today, are proof that the computer's massive power has been at least as devoted to peaceful science as to simulating thermonuclear weapons.

Read more ....

Detecting Life-Friendly Moons

The astronaut Buzz Aldrin inhabiting the moon on July 20, 1969,
during the Apollo 11 mission. Credit: NASA

From Astrobiology Magazine:

Forty years ago, the Apollo astronauts traipsed across our Moon, making it "inhabited" for the first time – albeit for only two and half hours. A bona-fide habitable moon has never been found, but astronomers are considering how we might find one around distant stars.

"I think exomoons are just as interesting as exoplanets," says David Kipping of University College London.

Read more ....

Astronomical Artifact: Most Distant Object Yet Detected Carries Clues From Early Universe

A false-color image from the Gemini North Telescope in Hawaii shows the afterglow of GRB 090423 [circled], the most distant astronomical event yet observed. Gemini Observatory/NSF/AURA, D. Fox and A. Cucchiara (Penn State University) and E. Berger (Harvard University)

From Scientific American:

A stellar explosion spotted in April took place 13 billion years ago.

A violent explosion picked up by a NASA satellite earlier this year is the oldest object ever seen by astronomers, its light having been emitted some 13 billion years ago. At that time the universe was roughly 5 percent of its present age and the big bang was a fairly recent occurrence, having taken place just 600 million years earlier.

NASA's Swift Gamma-Ray Burst spacecraft spotted the flash signaling a massive stellar explosion on April 23. The explosion was officially designated GRB 090423, after its type (a gamma-ray burst) and date of detection; the space agency quickly announced it as the new record holder for cosmic distance. Now, two papers in the October 29 Nature present detailed analyses of the burst and afterglow, confirming the initial distance assessments and providing a few clues as to conditions in the early universe.

Read more ....

High-Energy Batteries Coming To Market

Photo: Battery unpacked: This graphic illustrates the multilayered structure of a ReVolt rechargeable zinc-air battery. From top to bottom: the battery cover, which lets in air; a porous air electrode; the interface between electrodes; the zinc electrode; the casing. Credit: ReVolt

From Technology Review:

Rechargeable zinc-air batteries can store three times the energy of a lithium-ion battery.

A Swiss company says it has developed rechargeable zinc-air batteries that can store three times the energy of lithium ion batteries, by volume, while costing only half as much. ReVolt, of Staefa, Switzerland, plans to sell small "button cell" batteries for hearing aids starting next year and to incorporate its technology into ever larger batteries, introducing cell-phone and electric bicycle batteries in the next few years. It is also starting to develop large-format batteries for electric vehicles.

Read more ....

Swine Flu: Eight Myths That Could Endanger Your Life

(Image: Chung Sung-Jun / Getty)

From New Scientist:

The second wave of the swine flu pandemic is now under way in the northern hemisphere. Case numbers are climbing fast and in some places vaccination has begun.

So what's the big deal? The virus hasn't evolved into the monster that some feared and most cases are mild. Were all those pandemic warnings just scare-mongering?

Perhaps, but the Butcher family of Southampton, UK, wouldn't say so. In August, their daughter Madelynne, 18, became sick and short of breath after returning from a holiday. Two weeks later, she died in hospital.

Read more ....

Cosmic Rays Speed Up Tree Growth

The researchers studied the growth of Sitka spruce forests in Scotland.
Credit: iStockphoto

From Cosmos:

SYDNEY: Cosmic rays, which constantly strike the Earth and are regulated by the solar wind, may influence how fast trees grow, according to British research.

The study, published in the journal New Phytologist looked at the factors that influence the growth of Sitka spruce trees (Picea sitchensis) felled in the Forest of Ae in Dumfriesshire, Scotland.

Trees grow faster during summer when there is increased solar radiation. But other factors, such as cloud cover and the amount of carbon dioxide in the atmosphere, can also influence tree growth.

Read more ....

Daylight Savings Time 2009: When And Why We Fall Back

From National Geographic:

When is the big daylight saving time (often called daylight savings time) switchover in autumn 2009?

Why do we fall back in the first place? (Hint: A lot of 18th-century train passengers, among others, suffered for your extra hour of sleep this weekend.)

Read more ....

Rooting for NASA's Ares I Rockets: Analysis

From Popular Mechanics:

A week of spaceflight tests, large and small, reminds us why NASA’s much maligned launch vehicle is important. If it fails, we lose the moon.

This week, all eyes were on NASA as it conducted the first flight of the Ares I, the first launch vehicle the agency designed since the Space Shuttle. October also witnessed progress in other space launches, some of which are seen as possible replacements for the towering NASA rocket. But a comparison of the milestones met in the last two weeks shows why NASA’s Constellation program remains important, and is exceedingly difficult to replace.

Read more ....

The Ares Lift-Off: Learning From Space Shuttle Mistakes

From Time Magazine:

With the future of the space agency up in the air, NASA can certainly use the good P.R. that will flow from Wednesday's picture perfect test launch of its Ares I-X prototype rocket which is being designed to replace the aging Space Shuttle and ignite a new era in human space exploration. Mission managers took quick advantage of changing weather conditions to blast the rocket through a small hole in upper level clouds passing briefly over Launch Pad 39B.

Read more ....

Junk DNA Mechanism That Prevents Two Species From Reproducing Discovered

When two populations of a species become geographically isolated from each other, their genes diverge from one another over time. Eventually, when a male from one group mates with a female from the other group, the offspring will die or be born sterile, as a cross between a horse (left) and a donkey (right) produce a sterile mule. At this point, they have become two distinct species. (Credit: iStockphoto)

From Science Daily:

Science Daily (Oct. 27, 2009) — Cornell researchers have discovered a genetic mechanism in fruit flies that prevents two closely related species from reproducing, a finding that offers clues to how species evolve.

When two populations of a species become geographically isolated from each other, their genes diverge from one another over time.

Read more ....

Volcanic Eruptions Caused Ancient Warming And Cooling

Photo courtesy of US Geological Survey; Hawaiian Volcanoes Observatory, Hawaii Volcanoes National Park, August 10, 2002

From Live Science:

Volcanic eruptions were responsible for a deadly ice age 450 million years ago, as well as — in an ironic twist — a period of global warming that preceded it, a new study finds.

The finding underscores the importance of carbon in Earth's climate today, said study researcher Matthew Saltzman of Ohio State University.

The ancient ice age featured glaciers that covered the South Pole on top of the supercontinent of Gondwana (which would eventually break apart to form the present-day continents of the southern hemisphere). Two-thirds of all species perished in the frigid climate.

Read more ....

In Germany, A Better Vaccine For Politicians?

Andreas Rentz / Getty

From Time Magazine:

Critics are calling it a two-tier health system — one for the politically well connected, another for the hoi polloi. As Germany launched its mass-vaccination program against the H1N1 flu virus on Monday, the government found itself fending off accusations of favoritism because it was offering one vaccine believed to have fewer side effects to civil servants, politicians and soldiers, and another, potentially riskier vaccine to everyone else. The government had hoped that Germans would rush to health clinics to receive vaccinations against the rapidly spreading disease, but now rising anger over the different drugs may cause many people to shy away.

Read more ....

Liftoff For NASA's Ares I-X

Ares Test 1

From Popular Science:

Ares I-X roared off its launch pad at 11:30 EST at Cape Canaveral. This marks success for NASA's second launch attempt to get the Ares I-X rocket off the ground after weather delayed the launch on Tuesday.

Update 9:58 EST: NASA now aims for launch around 11 EST. Surveillance aircraft report that weather should be "acceptable" at that time, and NASA pegs the chance of weather interference at just 20 percent.

Update 10:43 EST: Engineering teams are all reporting a "go" for launch, and the launch director reports no constraints to launch. Countdown is set to pick up at 10:56 EST.

Read more ....

Grandmothers: Good For Girls, Bad For Boys

From The Independent:

The importance of grandmothers in the lives of their grandchildren is underlined in a study published today.

But the research showed that it was only granddaughters who were likely to do better with their paternal grandmothers involved in their early lives. In contrast, the presence of paternal grandmothers had a detrimental effect on the survival of their grandsons.

The discovery supports the idea that grandmothers have played an important role in human evolution and could explain why human females – alone among the animal kingdom – live well beyond their reproductive age.

Read more ....

How Maths Makes The World Go Round

Maths makes it: genetic breeding yields a better class of carrot

From The Telegraph:

Whether you’re searching for oil, the lost chord or a better kind of carrot, mathematics is the key, says Ian Stewart.

Like many amateur guitarists, I’d always wondered how to play the opening chord of A Hard Day’s Night. Over the years, I spent hours trying to reconstruct it, but there was something very odd about it: no matter how hard I tried, I could never get it quite right.

In the end, the key to the mystery turned out not to be music, but mathematics. Five years ago fellow Beatles fan and mathematician Jason Brown of Dalhousie University analysed the chord using a method called Fourier analysis, which splits sounds into their basic components. It turns out that the Beatles used a piano as well as their guitars.

Read more ....

Why It Pays To Have A Younger, Smarter Wife

Beyonce Knowles, 28, has had a better education than her husband Jay-Z, 39,
as he did not gain a high school diploma

From The Daily Mail:

Forget impressing her with candlelit dinners, romantic weekends away and endless compliments.

The secret to a happy marriage is as simple as choosing a wife who is smarter than you and at least five years younger.

Scientists have developed a distinctly unromantic formula to predict how compatible a couple are, based on their ages, education and relationship history.

Read more ....

Industrial Robot Hones Virtual Autopsies

Getting under the skin, virtually (Image: University of Bern)

From New Scientist:

THE small industrial robot that dominates the room is in many ways much like any other. A robotic arm smoothly wields grippers and probes - always accurate and never tired. But rather than working on cars or computers, this robot is processing human corpses.

A team of forensic pathologists at the University of Bern in Switzerland reckon it could make autopsies more accurate and also less distressing for families.

Read more ....

Climate Pap Shows Human Impacts

From The BBC:

A map designed to show the predicted effects of a 4C rise in global average temperature has been unveiled by the UK government.

It shows a selection of the impacts of climate change on human activity.

These include extreme temperatures, drought, effects on water availability, agricultural productivity, the risk of forest fire and sea level rise.

The map is based on peer-reviewed science from the Met Office's Hadley Centre and other scientific groups.

Read more ....

A New Royal Maya Tomb Emerges From The Tunnels Beneath Copán's Acropolis

Archaeologists Molly Fierer-Donaldson and Nereyda Alonso perch on a wooden platform as they lift artifacts from the tomb of the early Maya king discovered beneath the Oropéndola temple. (Courtesy Proyecto Oropéndola)

From Archaeology:

A new royal Maya tomb emerges from the tunnels beneath Copán's Acropolis.

The Maya kings of Copán were not interested in moving mountains. They preferred to build their own, like the pyramid now known as Temple 16. Rising 100 feet above the city's Great Plaza, it is the highest point among a group of holy buildings that archaeologists have dubbed "the Acropolis." Inside an excavation tunnel deep beneath the pyramid's surface, the face of the sun-king scowls at me from the wall of his temple. The city's ancient rulers built their temples--one on top of the next--to suit the needs of the moment. The moment I am visiting occurred shortly after A.D. 540 when the first of four temples was built around a small plaza at the top of the Acropolis.

Read more ....

Volcanoes Played Pivotal Role In Ancient Ice Age, Mass Extinction

Researchers at Ohio State University have discovered that volcanoes played a pivotal role in a deadly ice age that occurred nearly half a billion years ago. This photograph shows volcanic ash beds -- formed around 455 million years ago -- layered in the rock of the Nashville Dome area in central Tennessee. (Credit: Photo by Matthew Saltzman, courtesy of Ohio State University)

From Science Daily:

Science Daily (Oct. 26, 2009) — Researchers here have discovered the pivotal role that volcanoes played in a deadly ice age 450 million years ago.

Perhaps ironically, these volcanoes first caused global warming -- by releasing massive amounts of carbon dioxide into the atmosphere.

When they stopped erupting, Earth's climate was thrown off balance, and the ice age began.

Read more ....

Fighting The Flu: Do Hand Sanitizers Work?

From Live Science:

With the amount of bottles of alcohol-based hand sanitizer available for public use at hospitals, schools, day-care facilities and malls now outnumbering the billions of viruses and bacteria on even the dirtiest of human hands, you may be wondering if this stuff actually works.

Is it better than hand washing? Does it create mutant strains of alcoholic germs? Might my retirement savings have actually increased had I invested in the makers of Purell last year?

Read more ....

The 10 Best Educational Websites

From Times Online:

Online information has come on leaps and bounds since the days of the CD-ROM encyclopedia. We bring you the top education sites.

If you bought a computer a few years ago, it would invariably come with a free CD-Rom encyclopedia. At the time it seemed like a life-changer, but after an hour or two spent looking at ancient wildlife clips and a timeline about the Romans, the excitement wore off. Today’s internet equivalents are bigger, faster and more interactive, whether you’re helping youngsters with their homework or cramming for the pub quiz.

Read more ....

Revealed: Why Children Of Older Men Are More Likely To Have Health Problems

Michael Douglas and Catherine Zeta-Jones. Photo James Fraser

From The Independent:

Oxford study identifies mutant cells affecting sperm.

Scientists may have discovered the reason why older men are at greater risk than younger men of fathering a child who develops serious health problems such as congenital deformities, autism, or schizophrenia.

Read more ....

Nasa's Ares 1-X Rocket Launch Postponed Due To Bad Weather

Ares 1-X at the launchpad in Florida. The rocket's launch has been delayed by 24 hours
Photo: NASA

From The Telegraph:

The launch of Nasa’s latest rocket, the Ares 1-X, has been postponed for 24 hours due to bad weather.

Nasa announced the news on its website and on Twitter, saying: “Ares I-X has scrubbed for today due to bad weather. :-( More details soon about next attempt.”

The launch was scheduled for between midday and 4pm GMT, but has been delayed by 24 hours, according to another Twitter post saying: “Ares I-X flight test now targeted for tomorrow Oct. 28 at 8 a.m. EDT/noon GMT. 4hr launch window. Weather 60% go”.

Read more ....

Most Dramatic Internet Shake-Up In 40 Years To Allow Web Addresses In Languages From Arabic To Japanese

A Chinese internet user browses for information on Google. Soon internet addresses will be available in Chinese script along with Arabic and Cyrillic

From The Daily Mail:

International domain names or addresses that can be written in non-English characters are expected to be approved this week.

This will spark one of the biggest changes to the internet in its four-decade history.

The Internet Corporation for Assigned Names and Numbers, or ICANN - the non-profit group that oversees domain names - is holding a meeting this week in Seoul.

The ICANN board will decide if will allow entire internet addresses to be in scripts that are not based on Latin letters.

Read more ....

Monster Supernovae May Explain Galaxy's Mystery Haze

The mysterious WMAP haze (Image: WMAP)

From New Scientist:

WHAT is causing a mysterious "haze" of radiation at the centre of the Milky Way? It may be a load of monster supernovae kicking out radiation which is then amplified by magnetic stellar winds and turbulence near the galaxy's core.

In 2003, the Wilkinson Microwave Anisotropy Probe found a patch of particularly energetic microwave radiation in the centre of our galaxy - dubbed the "WMAP haze". It was proposed that this could be caused by collisions of a new type of dark-matter particle.

Read more ....

Colossal 'Sea Monster' Unearthed

From The BBC:

The fossilised skull of a colossal "sea monster" has been unearthed along the UK's Jurassic Coast.

The ferocious predator, which is called a pliosaur, terrorised the oceans 150 million years ago.

The skull is 2.4m long, and experts say it could belong to one of the largest pliosaurs ever found: measuring up to 16m in length.

The fossil, which was found by a local collector, has been purchased by Dorset County Council.

Read more ....

Asteroid Over Indonesia Triple Hiroshima Bomb Power

Stocktrek Images/Getty Images

From Future Pundit:

An asteroid over Indonesia exploded too high up to cause ground damage but with enormous force.

On 8 October an asteroid detonated high in the atmosphere above South Sulawesi, Indonesia, releasing about as much energy as 50,000 tons of TNT, according to a NASA estimate released on Friday. That's about three times more powerful than the atomic bomb that levelled Hiroshima, making it one of the largest asteroid explosions ever observed.

Read more ....

Warning Over 'Monster' 20ft Great White Shark Which Bit Another Great White In Half

We're going to need a bigger boat: The remains of a 14ft great white shark that was bitten nearly in half by what authorities - judging from the size of the bite marks - estimated was a 20ft monster

From The Daily Mail:

A 'monster' great white shark measuring up to 20 ft long is on the prowl off a popular Queensland beach, according to officials.

Swimmers were warned to stay out of the water off Stradbroke Island after the shark mauled another smaller great white which had been hooked on a baited drum line.

The 10-foot great white was almost bitten in half.

The fictional shark at the centre of the Steven Spielberg blockbuster Jaws was estimated to be just five feet longer.

Read more ....

Like Hungry Teen, Life On Earth Had Big Growth Spurts

The Sequoia tree, the largest living thing on Earth, dwarfs humans and our ancient one-celled ancestors. Jane Wooldridge/Miami Herald/MCT

From McClatchy News:

WASHINGTON — Twice in the Earth's history, living creatures underwent astonishing growth spurts, and each time, new organisms emerged that were a million times larger than anything that had existed before.

Scientists say that's the way life on our planet expanded from tiny single-celled microbes billions of years ago to the ponderous whales and lofty sequoia trees that are today's biggest living things.

Read more ....

Link Between Alcohol And Cancer Explained: Alcohol Activates Cellular Changes That Make Tumor Cells Spread

Researchers have identified a cellular pathway that may explain the link between alcohol consumption and cancer. (Credit: iStockphoto)

From Science Daily:

Science Daily (Oct. 27, 2009) — Alcohol consumption has long been linked to cancer and its spread, but the underlying mechanism has never been clear. Now, researchers at Rush University Medical Center have identified a cellular pathway that may explain the link.

In a study published in a recent issue of Alcoholism: Clinical and Experimental Research, the researchers found that alcohol stimulates what is called the epithelial-to-mesenchymal transition, in which run-of-the-mill cancer cells morph into a more aggressive form and begin to spread throughout the body.

Read more ....

Why 'Sleeping On It' Helps

From Live Science:

We're often told, "You should sleep on it" before you make an important decision. Why is that? How does "sleeping on it" help your decision-making process?

Conventional wisdom suggests that by "sleeping on it," we clear our minds and relieve ourselves of the immediacy (and accompanying stress) of making a decision. Sleep also helps organize our memories, process the information of the day, and solve problems. Such wisdom also suggests that conscious deliberation helps decision making in general. But new research (Dijksterhuis et al., 2009) suggests something else might also be at work — our unconscious.

Read more ....

Enzyme Blocker May Reverse Nerve Damage

The research could lead to a viable treatment option for a range of neurodegenerative disorders, says an expert (Source: iStockphoto)

From ABC News:

Blocking the action of a single enzyme prevents injured nerve cells dying and enables them to regrow, say scientists in the US.

Their findings, to be published this week in the early edition of the Proceedings of the National Academy of Science, could have implications for sufferers of spinal injury and stroke, as well as neurodegenerative diseases such as Alzheimer's disease.

Read more ....

How Arlington National Cemetery Came To Be

From The Smithsonian:

The fight over Robert E. Lee's beloved home—seized by the U.S. government during the Civil War—went on for decades

One afternoon in May 1861, a young Union Army officer went rushing into the mansion that commanded the hills across the Potomac River from Washington, D.C. "You must pack up all you value immediately and send it off in the morning," Lt. Orton Williams told Mary Custis Lee, wife of Robert E. Lee, who was away mobilizing Virginia's military forces as the country hurtled toward the bloodiest war in its history.

Read more ....

Time Travel Through The Brain

From Technology Review:

Over the last 100 years, the way we visualize and understand the complexity of the brain has evolved.

Over the 100-year history of modern neuroscience, the way we think about the brain has evolved with the sophistication of the techniques available to study it. Improvements in microscope design and manufacture, together with the development of cell-staining techniques, afforded neuroscientists their first glimpse at the specialized cells that make up the nervous system. Microscopes with more magnifying power enabled them to probe nerve cells in greater detail, revealing distinct compartments. Newer techniques expose the connections between nerve cells, revealing the complex organization of the brain.

Read more ....

Awesome Pictures Of Saturn

From 20 degrees above the ring plane, Cassini's wide angle camera shot 75 exposures in succession for this mosaic showing Saturn, its rings, and a few of its moons a day and a half after exact Saturn equinox, when the sun's disk was exactly overhead at the planet's equator. The images were taken on Aug. 12, 2009, at a distance of approximately 847,000 km (526,000 mi) from Saturn. (NASA/JPL/Space Science Institute)

Saturn At Equinox -- Boston.com

Checking in with NASA's Cassini spacecraft, our current emissary to Saturn, some 1.5 billion kilometers (932 million miles) distant from Earth, we find it recently gathering images of the Saturnian system at equinox. During the equinox, the sunlight casts long shadows across Saturn's rings, highlighting previously known phenomena and revealing a few never-before seen images. Cassini continues to orbit Saturn, part of its extended Equinox Mission, funded through through September 2010. A proposal for a further extension is under consideration, one that would keep Cassini in orbit until 2017, ending with a spectacular series of orbits inside the rings followed by a suicide plunge into Saturn on Sept. 15, 2017. (previously: 1, 2, 3). (23 photos total)

Read more ....

Science Proves That Women Will Look Like Their Mothers When They Get Older

Generations ... Joy Whiting, daughter Amanda Masters and granddaughter Minnie.
Source: The Daily Telegraph

From The Daily Telegraph:

IT'S a question many women ask ... will they look like their mothers when they get older. Now science has provided the answer ... they will.

Plastic surgeons have used new technology to study the ageing process.

For the first time, surgeons in the US used 3D photographic images to quantify the differences in 29 pairs of mothers and daughters who were perceived as similar.

Read more ....

Solar Superpower: Should Europe Run On Sahara Sun?

More energy than we could ever possibly need, but how can we tap into it?
(Image: Chris Anderson/Aurora/Plainpicture)

From New Scientist:

EVERY two weeks, the sun pours more energy onto the surface of our planet than we use from all sources in an entire year. It is an inexhaustible powerhouse that has remained largely untapped for human energy needs. That may soon change in a big way. If a consortium of German companies has its way, construction of the biggest solar project ever devised could soon begin in the Sahara desert. When completed, it would harvest energy from the sun shining over Africa and transform it into clean, green electricity for delivery to European homes and businesses.

Read more ....

Augmented Reality Goggles Make Marine Mechanics More Efficient

AR Goggles Seeing the world differently through augmented reality, and becoming more efficient to boot Steven Feiner and Steven Henderson

From Popular Science:

Jarheads work almost 50 percent faster wearing heads-up display goggles that replace technical manuals.

New augmented reality goggles are helping Marine mechanics perform maintenance on vehicles in about half the usual time. The futuristic headgear displays precise instructions on top of real-world settings, and shows how to complete certain tasks, such as wiring up an ignition coil.

Read more ....

My Comment: Something tells me that this headgear must cost a fortune.

Bumper Brains -- A Commentary

Credit: Andrew Lee/COSMOS

From Cosmos Magazine:

Science can help us stretch the limits of the human mind: but should we embrace brain enhancement, despite the risks?

AT THE UNIVERSITY OF CALIFORNIA in San Diego, researcher Mark Tuszynski and his colleagues have been studying the use of genetically modified neurons in the treatment of Alzheimer's disease. In 2001, the scientists implanted neurons carrying extra copies of a gene that codes for nerve growth factor, or NGF, into the brains of patients.

Read more ....

Mantis Shrimp Eyes Could Show Way To Better DVD And CD players

A mantis shrimp takes a peep from it's burrow in the Sulu sea.
(Credit: iStockphoto/Richard Ng)

From Science Daily:

Science Daily (Oct. 26, 2009) — The remarkable eyes of a marine crustacean could inspire the next generation of DVD and CD players, according to a new study from the University of Bristol published today in Nature Photonics.

The mantis shrimps in the study are found on the Great Barrier Reef in Australia and have the most complex vision systems known to science. They can see in twelve colours (humans see in only three) and can distinguish between different forms of polarized light.

Read more ....