A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Tuesday, October 27, 2009
Nasa's Ares 1-X Rocket Launch Postponed Due To Bad Weather
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”.
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Most Dramatic Internet Shake-Up In 40 Years To Allow Web Addresses In Languages From Arabic To Japanese
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.
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Monster Supernovae May Explain Galaxy's Mystery Haze
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.
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.
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Asteroid Over Indonesia Triple Hiroshima Bomb Power
From Future Pundit:
An asteroid over Indonesia exploded too high up to cause ground damage but with enormous force.
Read more ....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.
Warning Over 'Monster' 20ft Great White Shark Which Bit Another Great White In Half
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.
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Like Hungry Teen, Life On Earth Had Big Growth Spurts
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.
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Link Between Alcohol And Cancer Explained: Alcohol Activates Cellular Changes That Make Tumor Cells Spread
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.
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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.
Enzyme Blocker May Reverse Nerve Damage
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.
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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.
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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.
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Awesome Pictures Of Saturn
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)
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Science Proves That Women Will Look Like Their Mothers When They Get Older
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.
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Solar Superpower: Should Europe Run On Sahara Sun?
(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.
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Augmented Reality Goggles Make Marine Mechanics More Efficient
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.
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My Comment: Something tells me that this headgear must cost a fortune.
Bumper Brains -- A Commentary
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.
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Monday, October 26, 2009
Mantis Shrimp Eyes Could Show Way To Better DVD And CD players
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.
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Investigator Checks Out Haunted House For Sale
From Live Science:
There is no shortage of people seeking to turn ghosts into gold and spooks into silver. Hundreds of amateur ghost-hunting groups across the country offer tours of local haunts, allegedly spirit-infested hotels, mansions, cemeteries, and so on.
Ghosts generate a lot of green.
One of the most enterprising ghost entrepreneurs is an artist named Josh Bond, who lives in the tiny New Mexican town of Cuchillo. Bond is offering a genuine haunted house for sale — on eBay.
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New Processor Will Feature 100 Cores
Forget dual-core and quad-core processors: A semiconductor company promises to pack 100 cores into a processor that can be used in applications that require hefty computing punch, like video conferencing, wireless base stations and networking. By comparison, Intel’s latest chips are expected to have just eight cores.
“This is a general purpose chip that can run off-the-shelf programs almost unmodified,” says Anant Agarwal, chief technical officer of Tilera, the company that is making the 100-core chip. “And we can do that while offering at least four times the compute performance of an Intel Nehalem-Ex, while burning a third of the power as a Nehalem.”
The 100-core processor, fabricated using 40-nanometer technology, is expected to be available early next year.
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Getting It Wrong: Surprising Tips On How To Learn
From Scientific American:
New research makes the case for hard tests, and suggests an unusual technique that anyone can use to learn.
For years, many educators have championed “errorless learning," advising teachers (and students) to create study conditions that do not permit errors. For example, a classroom teacher might drill students repeatedly on the same multiplication problem, with very little delay between the first and second presentations of the problem, ensuring that the student gets the answer correct each time.
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Best & Worst Destinations Rated, 2009
From National Geographic:
Still waters in Norang Fjord, shown in an undated picture, reflect the "well-preserved Norwegian rural life" that helped the region take top honors in the sixth annual "Destinations Rated" scorecard compiled by the National Geographic Society's Center for Sustainable Destinations.
The center convened an independent panel of 437 experts in fields from historic preservation and sustainable tourism to travel writing and archaeology to assess 133 iconic places around the world.
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End Of An Era For Early Websites
A service that gave many people their first taste of building and owning a web page is set to close.
Yahoo-owned GeoCities once boasted millions of users and was the third most popular destination on the web.
The free site has since fallen out of fashion with users, who have switched to social networks.
Yahoo, which acquired the site for $3.57bn (£2.17bn) in 1999 at the height of the dotcom boom, said sites would no longer be accessible from 26th October.
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Video: Army’s Robot-Man Walks Like the Real Thing
From The Danger Room:
The makers of the eerily lifelike robotic mule have a new creation: a machine that walks around like a real human being. Boston Dynamics is building the “Petman” prototype for the U.S. Army, to test out protective clothing.
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LHC Reawakens, Sending Proton Beams Running At The Speed of Light
From Popular Science:
Over the weekend, Cern ran particle beams through the Large Hadron Collider for the first time since it was shut down last September. After a helium leak caused magnets to overheat, operations at the LHC were suspended for cleanup and repairs. After tests on October 23 and 25, scientists hope to have the LHC running again in full by November.
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What Dangers Lurk in WWII-Era Nuclear Dumps?
From Discover Magazine:
Here’s one direct and obvious effect of the economic stimulus package passed in February: The toxic sites where scientists ushered in the nuclear age are getting cleaned up. In Los Alamos, New Mexico, a dump that contains refuse of the Manhattan Project and that was sealed up decades ago is finally being explored, thanks to $212 million from the American Recovery and Reinvestment Act.
But experts aren’t sure what they’ll find inside the dump. At the very least, there is probably a truck down there that was contaminated in 1945 at the Trinity test site, where the world’s first nuclear explosion seared the sky and melted the desert sand 200 miles south of here during World War II [The New York Times]. It may also contain explosive chemicals that could have become more dangerous over the years of burial.
My Comment: Long after the war has ended, it's left overs are still affecting us.
A Few Coffees A Day Keeps Liver Disease At Bay
From Cosmos Magazine/AFP:
WASHINGTON DC: Researchers at the U.S. National Cancer Institute have found another good reason to go to the local espresso bar: several cups of coffee a day could halt the progression of liver disease.
Sufferers of chronic hepatitis C and advanced liver disease, who drank three or more cups of coffee per day, slashed their risk of the disease progressing by 53% compared to patients who drank no coffee, the study led by medical scientist Neal Freedman showed.
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Controversial Study Suggests Vast Magma Pool Under Washington State
WASHINGTON -- A vast pool of molten rock in the continental crust that underlies southwestern Washington state could supply magma to three active volcanoes in the Cascade Mountains -- Mount St. Helens, Mount Rainier and Mount Adams -- according to a new study that's causing a stir among scientists.
The study, published Sunday in the magazine Nature Geoscience, concluded that the magma pool among the three mountains could be the "most widespread magma-bearing area of continental crust discovered so far."
Other scientists dismiss the existence of an underground vat of magma covering potentially hundreds of square miles as "farfetched" and "highly unlikely." Rather than magma heated to 1,300 to 1,400 degrees, some think it could be water.
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Biofuel Displacing Food Crops May Have Bigger Carbon Impact Than Thought
From Science Daily:
Science Daily (Oct. 25, 2009) — A report examining the impact of a global biofuels program on greenhouse gas emissions during the 21st century has found that carbon loss stemming from the displacement of food crops and pastures for biofuels crops may be twice as much as the CO2 emissions from land dedicated to biofuels production. The study, led by Marine Biological Laboratory (MBL) senior scientist Jerry Melillo, also predicts that increased fertilizer use for biofuels production will cause nitrous oxide emissions (N2O) to become more important than carbon losses, in terms of warming potential, by the end of the century.
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Fraud, Errors And Misconceptions In Medical Research
Three years after being charged for fraud, misusing state funds and violating bioethics laws, disgraced South Korean stem cell researcher Hwang Woo-suk was convicted today on fraud charges, according to Reuters (The Washington Post said he was cleared of fraud but convicted on other charges).
Whichever, the court determined he has repented and so handed down a 2-year suspended sentence, according to media reports.
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Yahoo Mail Outages Plague Some Users
Yahoo Mail users reported some problems Monday morning, with the service inaccessible for some and spotty for others.
Techcrunch noticed a Twitter spike in reports of problems with Yahoo Mail, and another company called Downrightnow also reported problems accessing the service over the last several hours. Several CNET employees reported that they were able to access their in-boxes, but mine is unavailable. Yahoo Messenger and Yahoo's home page appeared to be working fine.
Ten Years After Napster, Music Industry Still Faces the (Free) Music
A full decade after Napster taught the world to share, the music industry’s resistance to new business models continues to obstruct some of the very services that could preserve it, albeit in a smaller, more efficient form.
The future of music over the next ten years depends on finding the right mix between “free” and “paid,” luring fans away from file sharing networks by offering them services that are faster, easier, and more convenient without asking them to subsidize the industry’s return to CD era profits.
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Does Economics Violate The Laws Of Physics?
From Scientific American:
SYRACUSE, N.Y. -- The financial crisis and subsequent global recession have led to much soul-searching among economists, the vast majority of whom never saw it coming. But were their assumptions and models wrong only because of minor errors or because today's dominant economic thinking violates the laws of physics?
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Comets Didn't Wipe Out Sabertooths, Early Americans?
From National Geographic:
A comet impact didn't set off a 1,300-year cold snap that wiped out most life in North America about 12,900 years ago, scientists say.
Though no one disputes the frigid period, more and more researchers have been unable to confirm a 2007 finding that says a collision triggered the change, known as the Younger Dryas.
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S Korea Clone Scientist Convicted
From BBC:
A South Korean court has convicted the disgraced cloning scientist Hwang Woo-suk of embezzlement over his stem cell research.
He was given a two-year sentence suspended for three years.
The 56-year-old scientist's work had raised hopes of finding cures for diseases such as Alzheimer's.
But his research was declared bogus in 2005, and he was put on trial the following year for embezzlement and accepting money under false pretences.
Hwang's research made him a South Korean hero until revelations that it was false shocked the nation.
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Who Killed All Those Honeybees? We Did
From Discovery:
The great bee die-off is not such a mystery after all: Industrial agriculture has stressed our pollinators to the breaking point.
It was mid-July, and Sam Comfort was teetering at the top of a 20-foot ladder, desperately trying to extract a cluster of furious honeybees from a squirrel house in rural Dutchess County, New York. Four stingers had already landed on his face, leaving welts along the fringe of his thick brown beard. That morning, the owner of the squirrel house had read an article in the local paper about Comfort’s interest in collecting feral honeybees, so he called and invited him over. Commercial bee colonies, faced with massive mortality rates, are not faring so well these days, and unmanaged hives like this one could be their salvation. Comfort hurried over, eager to capture the hive’s queen and bring her home for monitoring and, if she fares well, breeding.
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For the First Time, Geneticists Diagnose Disease Through Whole-Genome Analysis
From Popular Science:
For the first time, researchers have made a clinical diagnosis by sequencing the entire protein-coding parts of a person's genome.
"We have shown that one can use whole genome sequencing to make clinically meaningful diagnoses- it is technically feasible . . . and can provide new clinical insight that directs treatment," Richard Lifton, a geneticist at Yale who spearheaded the research, told Popsci.com.
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How Galileo And His Spyglass Turned The World On Its Head
From The Telegraph:
Today it would hardly pass muster as a child's plaything, but the telescope Galileo used 400 years ago this week to peer into the heavens overturned the foundations of knowledge, changing our perception of the universe and our place in it.
Galileo's "optick tube" had a meagre 9x magnification and was not even conceived for astronomy.
Indeed, when the gadget was first demonstrated, Venetian senators were so smitten with its military potential that they doubled Galileo's salary and awarded him a life tenure in the city-state's most prestigious university.
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Sunday, October 25, 2009
Time-Keeping Brain Neurons Discovered
From Science Daily:
Science Daily (Oct. 23, 2009) — Keeping track of time is one of the brain's most important tasks. As the brain processes the flood of sights and sounds it encounters, it must also remember when each event occurred. But how does that happen? How does your brain recall that you brushed your teeth before you took a shower, and not the other way around?
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Cleanliness May Foster Morality
A simple spritz of a fresh-smelling window cleaner made people more fair and generous in a new study.
The researchers figure cleanliness fosters morality.
They conducted fairness tests, with subjects completing tasks in a room that was either unscented or one that was sprayed with a common citrus-scented window cleaner.
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Mum's the Word for NASA's Secret Space Plane X-37B
re-entering Earth's atmosphere. NASA
From FOX News:
You would think that an unpiloted space plane built to rocket spaceward from Florida atop an Atlas booster, circle the planet for an extended time, then land on autopilot on a California runway would be big news. But for the U.S. Air Force X-37B project — seemingly, mum's the word.
There is an air of vagueness regarding next year's Atlas Evolved Expendable launch of the unpiloted, reusable military space plane. The X-37B will be cocooned within the Atlas rocket's launch shroud — a ride that's far from cheap.
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Where Will The Next Five Big Earthquakes Be?
From Time Magazine:
Earthquakes have always been part of Los Angeles' past — and its future. In 1994 a 6.7-magnitude quake hit the Northridge area of the city, badly damaging freeways, killing more than 70 people and causing $20 billion in damages. But those numbers could be dwarfed by a major quake in the future. The geologic record indicates that huge quakes occur roughly every 150 years in the region — Los Angeles lies along the southern end of the San Andreas Fault — and the last big quake, which registered a magnitude 7.9, happened in 1857. Los Angeles has done a lot to beef up its building codes and emergency response in the 15 years since the Northridge quake and may be better prepared than any other major American city, but the city's sheer size ensures the next Big One will be bloody.
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Europe's Earliest Road Atlas – From 1675
which is going under the hammer Photo: MASONS
From The Telegraph:
The first road atlas of its kind in western Europe, a 17th century book showing a highway network in England and Wales of just 73 roads, is to be sold at auction for up to £9,000.
The route atlas, published in 1675, includes 100 double pages of black and white maps laid out in continuous strips depicting the major roads and crossroads across England and Wales.
The work by John Ogilby – Britannia Volume the First, or an Illustration of the Kingdom of England and Dominion of Wales – also marks the first time in England that an atlas was prepared on a uniform scale, at one inch to a mile.
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Are Men Smarter Than Women? Global Trivial Pursuit Experiment Reignites Battle Of The Sexes
From The Daily Mail:
As competitive families around the world will attest, a nice leisurely game of Trivial Pursuit at Christmas can quickly descend into a heated contest.
Now Hasbro, the company behind the popular board game, has pitted men against women in an experiment to see just who is smart in the ultimate battle of the sexes.
'Trivial Pursuit wanted to conduct an experiment to see if trivia can answer the age-old question,' said Senior Brand Manager Hayden West.
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NASA’s Ares 1-X Rocket Is Looking Good For Tuesday Launch
From Christian Science Monitor:
NASA’s Ares 1-X rocket is standing tall on the pad, waiting for what NASA managers hope will be its 2 minutes of fame.
That’s about how long Ares 1-X will remain in the sky during its up-and-down test flight, currently scheduled for Oct. 27. The launch is set for 8 a.m. Eastern Daylight Time, so grab a cup of your favorite hot beverage, pull up a chair, and see what happens to the first new rocket NASA’s order up in nearly 30 years.
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Carefully Cleaning Up The Garbage At Los Alamos
From The New York Times:
LOS ALAMOS, N.M. — No one knows for sure what is buried in the Manhattan Project-era dump here. At the very least, there is probably a truck down there that was contaminated in 1945 at the Trinity test site, where the world’s first nuclear explosion seared the sky and melted the desert sand 200 miles south of here during World War II.
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Spencer: AGW Has Most Of The Characteristics Of An “Urban Legend”
From Watts Up With That?
About.com describes an “urban legend” as an apocryphal (of questionable authenticity), secondhand story, told as true and just plausible enough to be believed, about some horrific…series of events….it’s likely to be framed as a cautionary tale. Whether factual or not, an urban legend is meant to be believed. In lieu of evidence, however, the teller of an urban legend is apt to rely on skillful storytelling and reference to putatively trustworthy sources.
I contend that the belief in human-caused global warming as a dangerous event, either now or in the future, has most of the characteristics of an urban legend. Like other urban legends, it is based upon an element of truth. Carbon dioxide is a greenhouse gas whose concentration in the atmosphere is increasing, and since greenhouse gases warm the lower atmosphere, more CO2 can be expected, at least theoretically, to result in some level of warming.
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NASA Ares Rocket Development To Take Too Long
An article in New Scientist about the NASA Ares rocket program reports that a White House advisory panel chaired by former Lockheed Martin CEO Norman Augustine recommends against further development of the Ares rocket because it will take too long to develop.
Read more ....The rocket is set to make its first test flight on 27 October. But the committee believes the rocket will not be ready to loft crew to orbit until 2017, two years after the ISS is scheduled to be abandoned and hurled into the Pacific Ocean, Augustine said. Extending use of the space station to 2020 would not make much difference, since this would eat up funds available for Ares I and delay its first flight to 2018 or 2019, added committee member Edward Crawley of MIT.
Color Differences Within And Between Species Have Common Genetic Origin
From Science Daily:
Science Daily (Oct. 25, 2009) — Spend a little time people-watching at the beach and you're bound to notice differences in the amount, thickness and color of people's body hair. Then head to the zoo and compare people to chimps, our closest living relatives.
The body hair difference is even more pronounced between the two species than within our own species.
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Evidence Alexander The Great Wasn't First At Alexandria
From Live Science:
Alexander the Great has long been credited with being the first to settle the area along Egypt's coast that became the great port city of Alexandria. But in recent years, evidence has been mounting that other groups of people were there first.
The latest clues that settlements existed in the area for several hundred years before Alexander the Great come from microscopic bits of pollen and charcoal in ancient sediment layers.
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