Monday, September 21, 2009

Sinking River Deltas Threaten Millions

Nile River delta, Red Sea and Sinai Peninsula.
(Photo from Wallpaper Free Review)

From Live Science:

Most of the world's low-lying river deltas are sinking due to human activity, making them increasingly vulnerable to flooding from rivers and ocean storms and putting tens of millions of people at risk, a new study finds.

Researchers have long warned that the mass human migration to coastal areas in recent decades puts more and more people at risk of death from major storms. About 500 million people in the world live on river deltas.

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Probe Gets Clearest Glimpse Yet Of Cosmic Dawn



From New Scientist:

The Planck spacecraft has obtained its first peek at the afterglow of the big bang, revealing it in unprecedented detail. Its first map of the entire sky is set to be complete in about six months.

The European Space Agency spacecraft was launched into space on 14 May. It is observing the glow of hot gas from just 380,000 years after the big bang – about 13.73 billion years ago – called the cosmic microwave background.

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A Robot That Juggles Blind

Pendulum Juggler from Philipp Reist on Vimeo.



From Popular Science:

This machine uses no sensors, no feedback -- just the power of math -- to do its tricks.

In theory, designing a robot that continuously juggles a single ball should not be difficult. Calibrating the machine would be a pain but once you got the thing running, it should continue to juggle the ball until some variable intervenes. In a perfect world, this would occur elegantly, but here on Earth things just don't come off so beautifully. However, through some smart design and precise math, researchers at the Swiss Federal Institute of Technology in Zurich have created the Blind Juggler, so named because it juggles a ball continuously, even when variables are introduced, without the use of sensors.

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Smoking Bans May Reduce Heart Attacks By More Than A Third

Smoking bans were introduced in pubs and other public places in England and Wales in 2007. Photograph: Danny Lawson/PA

From The Guardian

The number of heart attacks has fallen steeply in countries where bans on smoking in public places have been introduced, according to two independent reviews.

The ban on smoking in public places could reduce heart attacks by more than a third in some parts of the world, say researchers.

Two independent health reviews have found that heart attack rates dropped steeply in areas where bans have been introduced, with one reporting 36% fewer cases three years after smoke-free legislation came in.

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3D Rome Created From 150,000 Flickr Photos



From The Telegraph:

Hundreds of thousands of holiday photos posted on Flickr have been used to create 3D models of European cities - including the major sites of Rome.

Scientists from the University of Washington have used advanced photo analysis and modelling techniques to generate fly-though representations of the Colosseum, the Trevi fountain and the Croatian city of Dubrovnik.

The models are created entirely from data taken from images uploaded by members of the public on to the photo-sharing website.

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Think Flying Economy Is Bad Now? New Aircraft Design Puts Passengers Face-To-Face In Rows For Budget Travel

The future of air travel: The new design could see more passengers
on each plane and ticket prices lowered


From The Daily Mail:

Air travel is being overhauled with a new aircraft design which plans to seat passengers facing each other in rows.

The controversial design is intended to save space and money and could see 50 per cent more passengers packed on to each plane.

Howard Guy, director of the UK company Design Q, acknowledges that some people will not be happy with the plan, but says they will be able to pay less for any inconvenience.

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Private Firms Preparing for Moon Flights

Testing, Testing .... Armadillo Aerospace's Super Mod rocket makes the first free-flight landing on a surface designed to mimic a lunar surface. Armadillo Aerospace

From Discovery Magazine:

Sept. 21, 2009 -- Lured by millions of dollars in prize money, teams of private firms aren't waiting for NASA to figure out if, when and how to get back to the moon. They're preparing to go themselves.

The first $1 million prize for demonstrating a lunar landing system is due to be awarded at the end of October. The front-runner is Texas-based Armadillo Aerospace, which this month made back-to-back flights of a vehicle named Scorpius.

Two other contenders plan to enter the NASA-backed competition before this year's cutoff on Oct. 31.

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Russian Billionaire Installs Anti-Photo Shield on Giant Yacht


From Gadget Lab/Wired:

Russian billionaire Roman Abramovich has a rather curious new addition built in to his latest oversized yacht. The 557-foot boat Eclipse, the price tag of which has almost doubled since original plans were drawn to almost $1.2 billion, set sail this week with a slew of show-off features, from two helipads, two swimming pools and six-foot movie screens in all guest cabins, to a mini-submarine and missile-proof windows to combat piracy.

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Recession And Policies Cut Carbon

Photo: Climate protestors in New York are demanding further cuts.

From The BBC:

The global recession and a range of government policies are likely to bring the biggest annual fall in the world's carbon dioxide emissions in 40 years.

The International Energy Agency (IEA) estimates that global CO2 emissions will fall by more than 2% during 2009.

Measures such as emissions trading have complemented the drop in emissions as economic activity has declined.

The news comes as leaders gather at the UN for a day of climate talks convened by Secretary-General Ban Ki-moon.

The anticipated fall in emissions is larger than that seen during the recession of the early 1980s.

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Google Releases Martian Invasion Doodle To Mark Birthday Of HG Wells

From the Telegraph:

Google has released a new doodle showing a scene from War of the Worlds, after confirming that its recent UFO logos were intended to mark the birthday of HG Wells.

The latest sketch shows the long-legged Martian fighting machines that feature in Wells's alien invasion novel trampling over the Surrey countryside.

Clicking on the image takes users through to search results for the English author, who is considered one of the fathers of science fiction.

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Scientists Make Paralyzed Rats Walk Again After Spinal-cord Injury

A combination of drugs, electrical stimulation and regular exercise can enable paralyzed rats to walk and even run again, researchers have discovered. (Credit: iStockphoto/Dmitry Maslov)

From Science Daily:

UCLA researchers have discovered that a combination of drugs, electrical stimulation and regular exercise can enable paralyzed rats to walk and even run again while supporting their full weight on a treadmill.

Published Nov. 20 in the online edition of Nature Neuroscience, the findings suggest that the regeneration of severed nerve fibers is not required for paraplegic rats to learn to walk again. The finding may hold implications for human rehabilitation after spinal cord injuries.

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When You Could Fling A Frisbee From Canada To Zimbabwe

Ancient basalt vein, Greenland Credit: Michael A. Hamilton

From Live Science:

Imagine flipping a Frisbee in Quebec, Canada, and seeing it land in Zimbabwe. That’s a distance of 8,000 miles now, but 2.6 billion years ago, with good wrist action, it would have been no feat at all (if only there had been Frisbees and, of course, people).

Present-day Quebec and Zimbabwe were adjacent way back then, say geologists who are using new techniques to map Earth’s early continents.

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Quantum Computers Are Coming – Just Don't Ask When

Will quantum computers do for the 21st century what digital computers did for the 20th? (Image: Everett Collection/Rex Features)

From The New Scientist:

WHATEVER happened to quantum computers? A few years ago, it seemed, it was just a case of a tweak here, a fiddle there, and some kind of number-crunching Godzilla would be unleashed upon us. Just as digital processors changed our lives in ways hard to imagine a few decades ago, the monstrous information processing power of individual atoms and electrons would mean that computing - and the world - would never be the same again.

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The Guide to Home Geothermal Energy

Drill and Fill: Installers thread pipe into a hole a few inches wide and over 100 feet deep. As wind and solar hog the alt-energy spotlight, this technology has remained underground.

From Popular Mechanics:

Efficient and economical, geothermal heats, cools and cuts fossil fuel use at home. Whether you're in sunny Florida, or snowy New Hampshire, a ground-fed climate system can free a consumer from fluctuating energy prices and save money on power bills immediately. Here's how it works.

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Fungus-Infected Violin Beats Stradivarius in Listening Test

Biotech-Enhanced Violins via Science Daily

From Popular Science:

Violins made by the Italian master craftsman Antonio Stradivarius are worth millions of dollars for their unparalleled sound. And that's great, for the handful of musicians who can afford these centuries-old instruments. This month, a new violin made from wood treated with a fungus actually trumped a Stradivarius in a blind listening test, offering hope for violinists who want high tonal quality at an affordable price.

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Earth Approaching Sunspot Records

Charlie Perry, a research hydrologist with the U.S. Geological Survey in Lawrence, sifts through graphs of data in explaining why he believes solar activity may have greater impacts on global temperatures than previously thought. COREY JONES/THE CAPITAL-JOURNAL

From CJ Online:

The average person may not associate coolness with the sun.

The sun releases energy through deep nuclear fusion reactions in its core and has surface temperatures as hot as 10,000 degrees Fahrenheit, according to NASA's Web site.

Not cool at all.

But the sun's recent activity, or lack thereof, may be linked to the pleasant summer temperatures the midwest has enjoyed this year, said Charlie Perry, a research hydrologist with the U.S. Geological Survey in Lawrence.

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....

We Trust People More If They Resemble Us

There are people we trust instinctively and those we do not, says the research. More often than not, this decision is based on physical appearance. Credit: iStockphoto

From Cosmos:

GUILDFORD, U.K.: A new study has found that subconsciously we are more likely to trust people with similar facial features to our own, but less likely to be physically attracted to them.

There are people we trust instinctively and those we do not, says the research. More often than not, this decision is based on physical appearance.

Using computer graphics, a team led by Lisa DeBruine from the University of Aberdeen in Scotland, manipulated faces so they looked more or less similar to participants in their study. Effectively, the faces either resembled siblings or not, said DeBruine.

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Hunting Hidden Dimensions

From U.S. News And World Report:

Black holes, giant and tiny, may reveal new realms of space.

In many ways, black holes are science's answer to science fiction. As strange as anything from a novelist's imagination, black holes warp the fabric of spacetime and imprison light and matter in a gravitational death grip. Their bizarre properties make black holes ideal candidates for fictional villainy. But now black holes are up for a different role: heroes helping physicists assess the real-world existence of another science fiction favorite—hidden extra dimensions of space.

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How Cooking Helped Us To Evolve


From Times Online:

The success of the human species is all down to our mastery of fire and cooking, a scientist claims. And hot food not sex was the basis for our relationships.

It is the ultimate domestic cliché: a woman, pinafored and dutiful, tending a stove all day in preparation for her husband’s homecoming. As soon as he walks in, the ritual can begin: family members take their seats around the table (he sits at the head, of course) and dinner is served. Our couple are reliving a scene that has played out billions of times in our history because gender roles — husband at work all day, woman as homebody — have been forged not by relatively recent social conventions but by our distant evolutionary past.

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WHO: H1N1 Vaccine Production To Fall Short

From Time Magazine:

(GENEVA) — Global production of swine flu vaccines will be "substantially less" than the previous maximum forecast of 94 million doses a week, the World Health Organization said Friday.

The number of doses produced in a year will therefore fall short of the 4.9 billion doses the global health body previously hoped could be available for the pandemic, WHO spokesman Gregory Hartl told reporters in Geneva.

Production will be lower because some manufacturers are still turning out vaccines for seasonal flu — an illness that can be serious in sick and elderly people, Hartl said.

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