Are Artificial Sweeteners Really That Bad for You?

Richard Levine / Alamy

From Time Magazine:

Too much sugar will make you fat, but too much artificial sweetener will ... do what exactly? Kill you? Make you thinner? Or have absolutely no effect at all? This week marks the 40th anniversary of the Food and Drug Administration's decision to ban cyclamate, the first artificial sweetener prohibited in the U.S., and yet scientists still haven't reached a consensus about how safe (or harmful) artificial sweeteners may be. Shouldn't we have figured this out by now?

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CIA Buys Stake in Firm That Monitors Social Networking Sites

Gathering Intel The web 2.0 and open source intelligence make old intelligence gathering methods look, well, quaint Paramount Pictures

From Popular Science:

U.S. spies hope to glean intelligence nuggets from blog posts and Twitter.

Twitterati and other netizens should already know that their Internet musings are public and could potentially become fodder for intelligence analysts. But now U.S. spy agencies have officially invested in a software firm that monitors social media and half a million web 2.0 sites daily.

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New Method To Help Keep Fruit, Vegetables And Flowers Fresh

Did you know that millions of tons of fruits and vegetables in the United States end up in the trash can before being eaten, according to the U.S. Department of Agriculture? (Credit: iStockphoto/Jack Puccio)

From Science Daily:

Science Daily (Oct. 20, 2009) — Did you know that millions of tons of fruits and vegetables in the United States end up in the trash can before being eaten, according to the U.S. Department of Agriculture?

A Georgia State University professor has developed an innovative new way to keep produce and flowers fresh for longer periods of time. Microbiologist George Pierce's method uses a naturally occurring microorganism -- no larger than the width of a human hair -- to induce enzymes that extend the ripening time of fruits and vegetables, and keeps the blooms of flowers fresh.

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Music Benefits Exercise, Studies Show

From Live Science:

With the Fall marathon season in full swing, thousands of runners are gearing up for the big day. Just as important as their broken-in shoes and heart rate monitor is their source of motivation, inspiration and distraction: their tunes.

Running with music has become so common that the two biggest names in both industries, Nike and Apple, have been joined at the hip with the Nike + iPod combination. So, what is it about music and running, or any exercise, that feels so right?

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Fancy Going To Mars? Space Agency Seeks Volunteers For 520-Day Trip... But It's Only A Simulation

A warm-up 105-day mission took place in 2009, with participants from Germany and France and four Russians living together in cramped conditions

From The Daily Mail:

Could you spend 18months with five strangers inside a small confined space? It may sound like a hellish endurance test, but The European Space Agency is calling for volunteers to do just that.

Starting in 2010, an international crew of six will simulate a 520-day round-trip to Mars, including a 30-day stay on the 'Martian surface'.

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Weather 'Shapes Human Body Clock'

From BBC:

Our internal body clocks are shaped by the weather as well as by the seasons, scientists have discovered.

Researchers used computers to model the workings of internal biological clocks.

They found the mechanism had to be so complicated because it was able to deal with varying amounts of light from hour to hour, as well as changing seasons.

It is hoped the research, led by a team from Edinburgh University, could help tackle sleep problems caused by jet lag and shift working.

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Intelligence Explained

Brain map: Software called BrainLab analyzes data collected during a specialized MRI scan of the author’s brain in order to create a neural wiring map. The image shows a cross-section. Specific subsets of wires are highlighted (the color indicates the direction of the wiring going through that slice). The cross-sections are computationally stitched together to create a three-dimensional image. Credit: Andrew Frew/Brainlab

From Technology Review:

Tracking and understanding the complex connections within the brain may finally reveal the neural secret of cognitive ability.

A series of black-and-white snapshots is splayed across the screen, each capturing a thin slice of my brain. The gray-scale pictures would look familiar to anyone who has seen a brain scan, but these images are different. Andrew Frew, a neuroscientist at the University of California, Los Angeles, uses a cursor to select a small square. Thin strands like spaghetti appear, representing the thousands of neural fibers passing through it. A few clicks of the cursor and Frew refines the tract of fibers pictured on the screen, highlighting first my optic nerve, then the fibers passing through a part of the brain that's crucial for language, then the bundles of motor and sensory nerves that head down to the brain stem.

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Hydrogen Muscle Silences The Domestic Robot

Kwang Kim's hydrogen muscle (Image: Kwang Kim)

From The New Scientist:

IF ROBOTS are ever going to be welcome in the home they will need to become a lot quieter. Building them with artificial muscles that run on hydrogen, instead of noisy compressed-air pumps or electric motors, could be the answer.

Kwang Kim, a materials engineer at the University of Nevada in Reno, came up with the idea after realising that hydrogen can be supplied silently by metal hydride compounds.

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Looking Beyond The Open Source Battle

Mitch Kapor. Photograph: Kim Kulish/Corbis

From The Guardian:

Software pioneer Mitch Kapor thinks Microsoft's war against open source is over – and that it must be seen in its historical context.

For years, the battle between the open source movement and Microsoft bordered on religious warfare. The two sides fired increasingly aggressive shots at one another – from the software goliath's boss, Steve Ballmer, calling open source "a cancer", to the man behind Linux, Linus Torvalds, suggesting that he might "destroy Microsoft" without even trying.

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Medical Marijuana

From Time Magazine:

On Oct. 19, the U.S. Justice Department announced that federal prosecutors would not pursue medical-marijuana users and distributors who comply with state laws, formalizing a policy at which the Obama Administration hinted earlier this year. Currently, 13 states allow doctors to prescribe medical marijuana to patients suffering from ailments ranging from AIDS to glaucoma, and in Maryland a prescription can soften punishment if a user faces prosecution. But until now those laws didn't provide any protection from federal authorities.

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Epicenter The Business of Tech Google Preparing Music Search Service

From Epicenter/Wired:

Google plans to launch a music service, Wired.com has confirmed with sources familiar with the situation. Next to nothing is known about the service at this point, rumored to be called “Google Music,” “Google Audio,” or “OneBox,” although from what we hear it’s launching sometime next week.

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Darpa Seeks New Round Of Proposals For Universal Biosensor

Bio-Threats Darpa is seeking proposals for a antibody biosensor that can effectively identify a wide range of bio-threats. Sari Huella

From Popular Science:

Got a great idea for an antibody biosensor but unsure what to do with it? Darpa wants you. The Department of Defense's future-tech wing is seeking proposals for its newly inaugurated Antibody Technology Program, the latest bid for technologies that can pinpoint specific biological agents ranging from bioterror threats to swine flu.

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Facial Profiling

From Slate:

Can you tell if a man is dangerous by the shape of his mug?

On Nov. 27, 2008, Indian police interrogators came face to face with the only gunman captured alive in last year's bloody Mumbai terror attacks. They were surprised by what they saw. Ajmal Kasab, who had murdered dozens in the city's main railway station, stood barely 5 feet tall, with bright eyes and apple cheeks. His boyish looks earned him a nickname among Indians—"the baby-faced killer"—and further spooked a rattled public. "Who or what is he? Dangerous fanatic or exploited innocent?" wondered a horrified columnist in the Times of India. No one, it seems, had expected the face of terror to look so sweet.

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Killer Algae: Key Player In Mass Extinctions

Pond covered with algae. (Credit: iStockphoto)

From Science Daily:

Science Daily (Oct. 20, 2009) — Supervolcanoes and cosmic impacts get all the terrible glory for causing mass extinctions, but a new theory suggests lowly algae may be the killer behind the world's great species annihilations.

Today, just about anywhere there is water, there can be toxic algae. The microscopic plants usually exist in small concentrations, but a sudden warming in the water or an injection of dust or sediment from land can trigger a bloom that kills thousands of fish, poisons shellfish, or even humans.

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3 Detroit Marathon Deaths Likely A Fluke

From Live Science:

The deaths of three runners at Sunday's Detroit Marathon were tragic, but probably not representative of any increasing danger inherent in the sport.

In fact, the deaths are likely to be a statistical fluke, doctors say.

A 26-year-old half-marathon runner, and two other runners — a 36-year-old and 65-year-old — died during the event. Though autopsy results are pending, experts say the most likely cause of death while running such a strenuous race is one related to heart disease.

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China Works For Mars And Moon Missions

From RIA Novosti:

MOSCOW. (RIA Novosti commentator Alexander Peslyak) - The launch of a Russian Phobos Grunt probe to Mars on October 16 has been delayed until 2011.

The delay also affects China's first mission to Mars. The 240-pound Chinese Yinghou-1 spacecraft was to be mounted atop the Russian spacecraft for transport to the Martian orbit, where it was to be released before the Russian spacecraft landed on Phobos.

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Toxic Algae 'Wiped Out Dinosaurs'

From The Telegraph:

Toxic algae rather than a massive asteroid may have wiped out the dinosaurs, scientists have claimed.

Previous studies had claimed an asteroid impact produced devastating climate changes and rising sea levels which caused the mass extinctions over the earth's 4.5 billion year existence.

But a team of American geologists and toxicologists claim algae commonly found naturally around the world could be the culprit that led to the demise of the dinosaurs.

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The Next Stephen Hawking: String Theory Pioneer Gets Cambridge Post

Michael Green: succeeds Stephen Hawking. Photograph: Cambridge University

From The Guardian:

Michael Green, one of the pioneers of string theory, takes prestigious role at University of Cambridge.

A Cambridge physicist who pioneered the idea that everything in the universe is made up of tiny vibrating strings of energy is to succeed Stephen Hawking in the most prestigious academic post in the world.

Professor Michael Green, a fellow of the Royal Society and co-founder of the fiendishly complex idea of string theory, was offered the position of Lucasian professor of mathematics following a meeting at the university this month.

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Chimps Are Happy To Help Each Other - But Only If They Are Asked

Lending a hand: One chimp passes a tool to another so they can reach a juice box

From The Daily Mail:

While chimpanzees are willing to help each other, they need to be prompted before they will offer assistance.

A study published in PLoS One showed chimps would share tools with each other, but usually only if requested. They were far less ready to spontaneously lend a hand like humans.

Researchers at Kyoto University in Japan were studying the evolution of altruism. Initially many scientist thought it developed from an ultimate perspective - 'I will help you now because I expect there to be some long-term benefit to me'.

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Kepler's Revolutionary Achievements In 1609 Rival Galileo's

Image: Catastrophe Averted: In a page from Kepler's Astronomia Nova, the astronomer works through the theretofore unexplained orbit of Mars. Owen Gingerich

From Scientific American:

The International Year of Astronomy marks the 400th anniversary of German astronomer Johannes Kepler's breakthroughs as well as those of his better-known Italian contemporary.

Four hundred years ago this year, two events marked what scientists and historians today regard as the birth of modern astronomy. The first of them, the beginning of Galileo's telescopic observations, has been immortalized by playwrights and authors and widely publicized as the cornerstone anniversary for the International Year of Astronomy. Through his looking glass, the Italian astronomer saw the mountains and valleys of the moon, the satellites of Jupiter, and sunspots—observations that would play a huge role in discrediting the prevailing, church-endorsed view of an Earth-centered cosmos.

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Fireball Picture: Meteor Explodes Over The Netherlands

From National Geographic:

October 15, 2009—When amateur photographer Robert Mikaelyan went out to snap an old Dutch sugar factory on Tuesday, he captured a rare treat: a huge exploding fireball in the sky.

Hundreds of people in the Netherlands and Germany reported seeing the fireball streak across the twilight skies around 7 p.m. local time on October 13.

Mikaelyan managed to capture several shots of the fireball as it swung low over the northern city of Groningen and began to break apart into smaller chunks.

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Scientists Try To Calm '2012' Hysteria

Amanda Peet, with Morgan Lily and Liam James, stars in "2012," opening next month. The movie's viral marketing campaign has blended seamlessly with websites spreading doomsday theories. (Columbia Pictures)

From The L.A. Times:

As an upcoming action movie fuels Internet rumors, several scientists make public statements: The world will not end in 2012, and Earth is not going to crash into a rogue planet.

Is 2012 the end of the world?

If you scan the Internet or believe the marketing campaign behind the movie "2012," scheduled for release in November, you might be forgiven for thinking so. Dozens of books and fake science websites are prophesying the arrival of doomsday that year, by means of a rogue planet colliding with the Earth or some other cataclysmic event.

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'Double Food Output To Stop World Starving,' Say Scientists

From the Independent:

Royal Society wants green revolution to deal with global population rise of 3 billion.

Global food production needs to be increased by between 50 and 100 per cent if widespread famine is to be avoided in the coming decades as the human population expands rapidly, leading scientists said.

A second "green revolution" is needed in agriculture to feed the extra 3 billion people who will be added to the existing population of 6 billion by 2050.

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West Antarctic Ice Sheet May Not Be Losing Ice As Fast As Once Thought

The West Antarctic ice sheet rests on a bed well below sea level and is drained by much larger outlet glaciers and ice streams that accelerate over distances of hundreds of kilometers before reaching the ocean, often through large floating ice shelves. (Credit: NASA/LIMA)

From Science Daily:

Science Daily (Oct. 20, 2009) — New ground measurements made by the West Antarctic GPS Network (WAGN) project, composed of researchers from The University of Texas at Austin, The Ohio State University, and The University of Memphis, suggest the rate of ice loss of the West Antarctic ice sheet has been slightly overestimated.

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Plants Recognize Rivals and Fight, Play Nice with Siblings

Harsh Bais, University of Delaware assistant professor of plant and soil sciences, and doctoral student Meredith Bierdrzycki with Arabidopsis plants in the laboratory at the Delaware Biotechnology Institute. Credit: University of Delaware.

From Live Science:

Plants can't see or hear, but they can recognize their siblings, and now researchers have found out how: They use chemical signals secreted from their roots, according to a new study.

Back in 2007, Canadian researchers discovered that a common seashore plant, called a sea rocket, can recognize its siblings – plants grown from seeds from the same plant, or mother. They saw that when siblings are grown next to each other in the soil, they "play nice" and don't send out more roots to compete with one another.

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Rocket Science For Kids

A pupil looks through a telescope at an afterschool astronomy club at Alexandra Park school, north London. Photograph: Rogan Macdonald

From The Guardian:

In the corner of a north London classroom, a huddle of year 7s are fizzing with excitement as they talk to each other about rocket science. Yes, you read that right. Some wander across the room to talk to the maths teacher about the forces required to propel the rockets they are building, while others start bundling up tiny parachutes into their rocket designs. A few more are busily adding fins to the sides of their rocket.

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Meet Future Woman: Shorter, Plumper, More Fertile

Tall, slim, and soon to be a museum piece.
(Image: Hugh Kretschmer / Stone + / Getty)

From New Scientist:

Women of the future are likely to be slightly shorter and plumper, have healthier hearts and longer reproductive windows. These changes are predicted by the strongest proof to date that humans are still evolving.

Medical advances mean that many people who once would have died young now live to a ripe old age. This has led to a belief that natural selection no longer affects humans and, therefore, that we have stopped evolving.

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U.S. Military Create Live Remote-Controlled Beetles To Bug Conversations

Researchers at UC Berkeley have implanted surveillance equipment into beetles
that allows them to control where they fly

From The Daily Mail:

Spies may soon be bugging conversations using actual insects, thanks to research funded by the US military.

The US Defense Advanced Research Projects Agency has spent years developing a whole host of cyborg critters, in the hopes of creating the ultimate 'fly on the wall'.

Now a team of researchers led by Hirotaka Sato have created cyborg beetles which are guided wirelessly via a laptop.

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Total Recall Achieved

From Scientific American:

Activating a small fraction of neurons triggers complete memory.

Just as a whiff of pumpkin pie can unleash powerful memories of holiday dinners, the stimulation of a tiny number of neurons can evoke entire memories, new research in mice suggests.

Memories are stored in neurons distributed across a host of brain regions. When something triggers a memory, that diffuse information is immediately and cohesively reactivated, but it's unclear how the circuit gets kicked into full gear.

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2009 Orionid Meteor Shower Peak Begins

Halley's comet streaks through the twilight sky on January 9, 1986, in an image from the Cerro Tololo Inter-American Observatory in Chile. The annual Orionids meteor shower, created by debris left behind from Halley's comet, will peak on October 21, 2009. Photograph courtesy NOAO/AP

From National Geographic:

Earth is currently plowing through space debris left behind by a visitor that last swung by during the Reagan Administration.

Spawned by Halley's comet, which last buzzed the planet in 1986, the tiny space rocks are the seeds of the annual Orionid meteor shower.

At its peak before sunrise Wednesday morning, the Orionids shower should produce 20 to 25 meteors an hour—a "relatively decent show," according to astronomer Anita Cochran, of the University of Texas at Austin's McDonald Observatory.

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Is Barnes & Noble's Nook a Kindle killer?

(Credit: Barnes & Noble)

From Crave/CNET:

While information on Barnes & Noble's new e-book reader, the Nook, has been trickling out for several days, the company unveiled the new $259 device on its Web site Tuesday a few hours before the official launch event in New York.

As previously reported, the Nook, billed as the first Android-powered e-book reader, features not only a 6-inch E-ink screen but a color touch screen that allows you to navigate content and also can turn into a virtual keyboard for searches.

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Plants And Wasps Are Smarter Than You Think

A nest of the paper wasps used in the study (Polybia aequatorialis), taken in the field near Monteverde, Costa Rica. Colonies of several thousand adult workers live in a paper nest. Workers usually start with tasks inside the nest, then on the surface. They 'graduate' to become food foragers. (Courtesy of Sean O'Donnell/University of Washington)

From The Christian Science Monitor:

Seedlings know when they're from the same plant, and wasps get smarter as they get tougher tasks, studies show.

Plants and pea brains can be smarter than you think. Plants like those that discriminate between siblings and strangers within their own species, that is. And pea brains like the tropical paper wasp that reorganizes its tiny brain to tackle increasingly complex tasks.

These research tidbits illustrate the fact that acquiring and using information is a fundamental aspect of organic life.

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Science To 'Stop Age Clock At 50'

From The BBC:

Centenarians with the bodies of 50-year-olds will one day be a realistic possibility, say scientists.

Half of babies now born in the UK will reach 100, thanks to higher living standards, but our bodies are wearing out at the same rate.

To achieve "50 active years after 50", experts at Leeds University are spending £50m over five years looking at innovative solutions.

They plan to provide pensioners with own-grown tissues and durable implants.

New hips, knees and heart valves are the starting points, but eventually they envisage most of the body parts that flounder with age could be upgraded.

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'Quick Test' For Airport Liquids And Liquid Explosives

Photo: Analysis of the results can be carried out on a small computer

From The BBC:

Scientists say they have developed a quick technique for detecting liquids that could be used as explosives.

If commercialised, the new method could potentially end restrictions on liquids carried onto commercial airlines.

The light-based approach uses cheap components and can reliably identify a range of liquids in just one-fifth of a second, the German scientists say.

The work, published in the journal Superconductor Science and Technology, could have additional applications.

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Carl Sagan Goes Techno Trance With Cosmos Video

From Underwire:

A popular new YouTube video is turning Carl Sagan into a funky hipster — even in his traditional professorial corduroy jacket and anachronistic mop-top.

“A Glorious Dawn: (Cosmos Remixed)” features the PBS star and scientist joining fellow genius Stephen Hawking in a new age rap ballad about the universe and humankind’s effort to explore it. Composed by John Boswell for his Colorpulse website, you can download the track for free here.

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Humans Are Still Evolving, Analysis Finds

Data collected as part of a 60-year study suggests that humans are likely to evolve at roughly the same rates as other living things. (Credit: iStockphoto)

From Science Daily:

Science Daily (Oct. 20, 2009) — Although advances in medical care have improved standards of living over time, humans aren't entirely sheltered from the forces of natural selection, a new study shows.

"There is this idea that because medicine has been so good at reducing mortality rates, that means that natural selection is no longer operating in humans," said Stephen Stearns of Yale University.

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First-Time Internet Use Alters Activity In Older Brains

Images show brain scans of those with minimal prior Internet experience compared to those with a lot of web experience. Note during the second brain scans, which is after Internet training, both Naives and Savvies have similar brain patterns. Credit: UCLA

From Live Science:

Adults with little internet experience show changes in their brain activity after just one week online, a new study finds.

The results suggest Internet training can stimulate neural activation patterns and could potentially enhance brain function and cognition in older adults.

As the brain ages, a number of structural and functional changes occur, including atrophy, or decay, reductions in cell activity and increases in complex things like deposits of amyloid plaques and tau tangles, which can impact cognitive function.

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Darwin's Contribution To Geology Overlooked

Photo: A copy made by John Collier in 1883 of his 1881 portrait of Charles Darwin. Darwin was a geologist too, say experts. Credit: Wikimedia

From Cosmos:

PORTLAND, OREGON: Darwin was more than a biologist; he was first, and foremost, a geologist, say researchers who presented talks at the Geological Society of America's annual meeting.

Darwin is known mostly for his revolutionary work on understanding the process of evolution and natural selection. But Edward Evenson, a glacial geologist who gave a presentation at the meeting in Portland today, said: "I'm here to try to change that perception."

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Better To Live In Country With Rights-Possessing Robots?

Photo: Female Cylons from Battlestar Galactica

From The Future Pundit:

Robin Hanson doesn't want to live in a country where robots are held back from full sentience and autonomy.

On Tuesday I asked my law & econ undergrads what sort of future robots (AIs computers etc.) they would want, if they could have any sort they wanted. Most seemed to want weak vulnerable robots that would stay lower in status, e.g., short, stupid, short-lived, easily killed, and without independent values. When I asked “what if I chose to become a robot?”, they said I should lose all human privileges, and be treated like the other robots. I winced; seems anti-robot feelings are even stronger than anti-immigrant feelings, which bodes for a stormy robot transition.

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High-Stakes Test Looms for Space Shuttle Successor

NASA officials say they plan to install two dampening systems to control vibrations in the Ares I rocket (Illustration: NASA/MSFC)

From New Scientist:

Talk about pressure. As the troubled successor to NASA's space shuttle powers up for its first flight test, a White House panel is weighing up whether to cancel the project.

The Ares I rocket is designed to carry a crew capsule called Orion to Earth orbit, where it could dock with the International Space Station or form part of a mission to the moon. But it has been plagued with budget problems and technical hitches.

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New Dinosaur Extinction Theory Causes Debate

An artist rendering of a space rock streaking toward Earth. Most experts think an impact off the Yucatan Peninsula 65 million years ago was the primary cause of the dinosaur demise. Others think volcanism and climate change may have played a role. A new and controversial idea suggests there was another, larger impact in India that was responsible. Stockxpert

From MSNBC:

The extinction of the dinosaurs has often been traced to a giant space rock impact on the Earth 65 million years ago. But now a scientist is saying experts have blamed the wrong impact. The new thinking was met with sharp criticism from other researchers, however.

Paleontologist Sankar Chatterjee of Texas Tech University says a giant basin in India called Shiva could also be an impact crater from the time of the dinosaurs' demise, and the crash that created it may have been the cause of the mass extinction scientists call the KT (Cretaceous–Tertiary) event, which killed off more than half the Earth's species along with the dinos. This argument runs counter to the widely-held wisdom that the Chicxulub impact on the Yucatan Peninsula off Mexico was behind the cataclysm.

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What Is The Real Cost Of Power Production?

POLLUTION COSTS: The hidden costs of power production include the health effects of air pollution and alternative fuels are no panacea. Corn ethanol has similar or even slightly higher negative impacts than gasoline. © iStockphoto.com / Mayumi Terao

From Scientific American:

Market prices don't reflect hundreds of billions of dollars in hidden costs of energy production to human health and the environment.

Market prices don't reflect hundreds of billions of dollars in hidden costs of energy production to human health and the environment, a National Research Council panel said in a report released today.

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Child-Care Centers And Parents Brace For Flu Season

Najlah Feanny / Corbis

From Time Magazine:

Over the years, day-care and child-care centers have become a security blanket for millions of working parents who need their children looked after during the day. But as an H1N1 epidemic draws closer, these centers look less like protective bastions and more like potential H1N1 incubators.

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2012 Doomsday Not Likely, Mayans Insist

From Discovery:

Apolinario Chile Pixtun is tired of being bombarded with frantic questions about the Mayan calendar supposedly "running out" on Dec. 21, 2012. After all, it's not the end of the world.

Or is it?

Definitely not, the Mayan Indian elder insists. "I came back from England last year and, man, they had me fed up with this stuff."

It can only get worse for him. Next month Hollywood's "2012" opens in cinemas, featuring earthquakes, meteor showers and a tsunami dumping an aircraft carrier on the White House.

Read more ....

In Search Of That Word On The Tip Of Your Tongue

Jennie Pyers signs with a young deaf boy in Nicaragua. Pyers studied bilingual sign language speakers to solve the "tip of the tongue" question. Wellesley College

From USA Today:

On the tip of your tongue, that word you can't dig out. Why not?

The tip of your tongue may be the wrong place to look, psychologists suggest. They find that hearing, sign-language speakers may hold the keys to finding where those words are hiding.

"You know the word, you just can't get it out," says Jennie Pyers of Wellesley (Mass.) College. "Well, it turns out sign-language speakers have the same problem," she says. Only they are called "tip-of-the-finger" glitches, rather than "tip-of the tongue" by psychologists.

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How The Moon Produces Its Own Water

Chandrayaan-1 SARA measurements of hydrogen flux recorded on the Moon on 6 February 2009. (Credit: Elsevier 2009 (Wieser et al.), ESA-ISRO SARA data)

From Science Daily:

Science Daily (Oct. 19, 2009) — The Moon is a big sponge that absorbs electrically charged particles given out by the Sun. These particles interact with the oxygen present in some dust grains on the lunar surface, producing water. This discovery, made by the ESA-ISRO instrument SARA onboard the Indian Chandrayaan-1 lunar orbiter, confirms how water is likely being created on the lunar surface.

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Why Have Sex? To Fend Off Parasites

Indiana University student Kayla King dissects snails under the microscope.
Credit: Kayla King, Indiana University

From Live Science:

Since Darwin’s time, biologists have tried to understand the advantages of sexual reproduction.
This is not trivial because there are clear disadvantages to sex.

Unlike sexual organisms, asexuals do not need a partner to reproduce, can reproduce clonally, and can produce twice as many female offspring. If there were no advantages to sex, and both sexual and asexual individuals were competing for resources, the asexuals would take over in only a few generations.

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Could Early Retirement Kill You?

From The Telegraph:

Full retirement after a life of work could actually kill you, claims new research.

A new study shows that people who give up work completely are less healthy than those who carry on in a part time job.

It found they experience fewer serious diseases and are able to function better day-to-day than those who stop working altogether.

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Are You Ready For The Third Dimension?

Photo: Coming to a home near you: Sky and Channel 4 are set to bring 3D technology into the living room

From The Daily Mail:

Cameras, laptops, computer games, even Channel 4 - the 3D experience is about to leap off the big screen and into your living room...

This Is It, the movie that documents Michael Jackson's final rehearsals for his never-to-be O2 residency, includes 3D movie sequences originally intended to be used in his comeback shows.

It's part of a new generation of 3D movies designed to tempt recession-hit movie-lovers back into the cinema - and it follows this year's string of 3D successes, including Coraline, Monsters vs Aliens and Bolt.

Read more ....

Crystals Hold Super Computer Key

From The BBC:

Tiny crystals could hold the key to creating computers with massive storage capacity, scientists believe.

The crystals could be used as storage devices for desktop computers capable of holding 100-times more data than current systems.

Scientists at the University of Edinburgh have been using low-energy lasers to make salt crystals in gel.

The development could allow users to store a terabyte of data in a space the size of a sugar cube within a decade.

This would be enough to hold the equivalent of 250,000 photographs or a million books.

Read more ....

Energy Out Of The Blue: Generating Electric Power From The Clash Of River And Sea Water

ELECTRIC BLUE: New projects aim to generate energy by harnessing the salinity-balancing effects where freshwater rivers flow into salty seas. © NASA/ROBERT SIMMON

From Scientific American:

Two pilot projects are testing the potential of "salt power," a renewable energy that relies on the differing salinities at river mouths to make watts.

In the hunt for alternatives to polluting and climate-warming fossil fuels, attention has turned to where rivers meet the sea. Here, freshwater and saltwater naturally settle their salinity difference, a phenomenon that two pioneering projects in Europe will try to harness to generate clean energy.

Read more ....