Friday, September 11, 2009

Simpler, Fresher Facebook Lite Puts Twitter In The Shade

The login page of Facebook Lite - the service is aimed
at users in countries with limited bandwidth


From The Daily Mail:

Facebook is currently testing a simplified version of its social network service aimed at countries where internet bandwidth is limited. But it may prove popular with other users tired of the currently over-fussy website.

The new system, named Facebook Lite, focuses on messaging and user updates and now looks far more similar to rival micro-blogging service Twitter.

It is available to a handful of users in the UK by going to http://lite.facebook.com. However, at present a preview of the service is only widely available in India and the US.

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Shuttle Landing Delayed For A Day

From The BBC:

The landing of the shuttle Discovery at the Kennedy Space Center has been delayed for at least a day due to bad weather in Florida.

Thunderstorms and strong winds meant that the US space agency Nasa skipped both Thursday landing possibilities.

The shuttle, which is returning from a mission to the International Space Station (ISS), will have to orbit the earth for a 14th day.

The new landing slot is at 1754 (2154 GMT) on Friday.

However the weather forecast for Friday is worse, and Saturday is only a little better.

Nasa says if necessary it will consider the possibility of using a runway at Edwards Air Force Base in California.

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Women Are Getting More Beautiful


From Times Online:

FOR the female half of the population, it may bring a satisfied smile. Scientists have found that evolution is driving women to become ever more beautiful, while men remain as aesthetically unappealing as their caveman ancestors.

The researchers have found beautiful women have more children than their plainer counterparts and that a higher proportion of those children are female. Those daughters, once adult, also tend to be attractive and so repeat the pattern.

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Thursday, September 10, 2009

Electrical Circuit Runs Entirely Off Power In Trees

Electrical engineers Babak Parviz and Brian Otis and undergraduate student Carlton Himes (right to left) demonstrate a circuit that runs entirely off tree power. (Credit: University of Washington)

From Science Daily:

ScienceDaily (Sep. 9, 2009) — You've heard about flower power. What about tree power? It turns out that it's there, in small but measurable quantities. There's enough power in trees for University of Washington researchers to run an electronic circuit, according to results to be published in an upcoming issue of the Institute of Electrical and Electronics Engineers' Transactions on Nanotechnology.

"As far as we know this is the first peer-reviewed paper of someone powering something entirely by sticking electrodes into a tree," said co-author Babak Parviz, a UW associate professor of electrical engineering.

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Arctic May Be Changed Forever, Study Finds

An adult female caribou and her newborn calf in Greenland during 2008-2009. Caribou numbers have been declining as a result of climate change. Credit: Eric Post, Penn State University

From Live Science:

The dramatic changes sweeping the Arctic as a result of global warming aren't just confined to melting sea ice and polar bears — a new study finds that the forces of climate change are propagating throughout the frigid north, producing different effects in each ecosystem with the upshot that the face of the Arctic may be forever altered.

"The Arctic as we know it may be a thing of the past," said Eric Post of Penn State, who led an international team that brought together research on the effects of climate change from ecosystems across the Arctic.

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Is Warfare in Our Genes? Apparently Not

Can humans ever live in eternal peace? (Image: Rex Features)

Winning The Ultimate Battle: How Humans Could End War -- The Scientist

OPTIMISTS called the first world war "the war to end all wars". Philosopher George Santayana demurred. In its aftermath he declared: "Only the dead have seen the end of war". History has proved him right, of course. What's more, today virtually nobody believes that humankind will ever transcend the violence and bloodshed of warfare. I know this because for years I have conducted numerous surveys asking people if they think war is inevitable. Whether male or female, liberal or conservative, old or young, most people believe it is. For example, when I asked students at my university "Will humans ever stop fighting wars?" more than 90 per cent answered "No". Many justified their assertion by adding that war is "part of human nature" or "in our genes". But is it really?

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My Comment: A fascinating read. Somehow I missed this story. Read the whole thing.

Solar Superstorm

An ultraviolet-wavelength picture of the sun taken by the ESA/NASA Solar and Heliospheric Observatory (SOHO) on Oct. 23, 2003.

From NASA:

October 23, 2003: Newly uncovered scientific data of recorded history's most massive space storm is helping a NASA scientist investigate its intensity and the probability that what occurred on Earth and in the heavens almost a century-and-a-half ago could happen again.

In scientific circles where solar flares, magnetic storms and other unique solar events are discussed, the occurrences of September 1-2, 1859, are the star stuff of legend. Even 144 years ago, many of Earth's inhabitants realized something momentous had just occurred. Within hours, telegraph wires in both the United States and Europe spontaneously shorted out, causing numerous fires, while the Northern Lights, solar-induced phenomena more closely associated with regions near Earth's North Pole, were documented as far south as Rome, Havana and Hawaii, with similar effects at the South Pole.

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The Age Of Enhancement


From Prospect:

A cornucopia of drugs will soon be on sale to improve everything from our memories to our trust in others.

On 6th December 2004 a baby girl named Yan was born. Her father, an internet entrepreneur, is called Shen Tong. Yan was Shen’s first child, and you might have expected him to have an excitable, sleepless night. But oddly the opposite occurred. He slept better than he had done for 15 years, six months and two days. It’s possible to be exact about the timing because 15 years, six months and two days earlier was 4th June 1989 and on that day Shen had been on a boulevard just off Tiananmen Square in Beijing. He was a 20-year-old student, and like thousands of others he was demonstrating in favour of political reform.

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New Robot Travels Across The Seafloor To Monitor The Impact Of Climate Change On Deep-sea Ecosystems

During July 2009, the Benthic Rover traveled across the seafloor while hooked up to the MARS ocean observatory. This allowed researchers to control the vehicle in "real time." The yellow cable on the right side of the image is a long "extension cord" that unspools as the Rover moves. (Credit: Copyright 2009 MBARI)

From Science Daily:

ScienceDaily (Sep. 10, 2009) — Like the robotic rovers Spirit and Opportunity, which wheeled tirelessly across the dusty surface of Mars, a new robot spent most of July traveling across the muddy ocean bottom, about 40 kilometers (25 miles) off the California coast. This robot, the Benthic Rover, has been providing scientists with an entirely new view of life on the deep seafloor. It will also give scientists a way to document the effects of climate change on the deep sea. The Rover is the result of four years of hard work by a team of engineers and scientists led by MBARI project engineer Alana Sherman and marine biologist Ken Smith.

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Memory Scientists Say: All Is Not Forgotten

fMRI Brain Activity Jan Hardenbergh


From Popular Science:

Unless you are this woman, you probably have a long mental list of moments and facts you wish you could remember -- but for the life of you, you can't. To use a personal example, I periodically Google the words "yellow house Berlin," hoping to produce the name of that one hostel I lived in for a summer in college; alas, no success yet. The good news, though, is that while such memories may be currently inaccessible, they're not entirely gone, and could theoretically be retrieved, according to new brain imaging research from the University of California, Irvine.

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No Sex Tonight Honey, I Haven't Taken My Statins

High cholesterol levels could prevent women from becoming sexually aroused
(Image: F1 Online / Rex Features)


From New Scientist:

High cholesterol isn't just bad for the heart – it could also make it harder for women to become sexually aroused. That might mean that cholesterol-lowering drugs like statins would help to treat so-called female sexual dysfunction (FSD).

Hyperlipidemia, or raised levels of cholesterol and other fats in the blood, is associated with erectile dysfunction in men, because the build-up of fats in blood vessel walls can reduce blood flow to erectile tissue. Since some aspects of female sexual arousal also rely on increased blood flow to the genitals, Katherine Esposito and her colleagues at the Second University of Naples in Italy compared sexual function in premenopausal women with and without hyperlipidemia.

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When two husbands are better than one

Women laborers work in an onion field at Rambha village of Karnal district in the northern Indian state of Haryana on April 30, 2009. A shortage of females in this area has led to more people participating in polyandry, or the phenomenon of a woman taking more than one husband. (Vijay Mathur/Reuters)

From Global Post:

Polyandry in the Himalayas is a complex affair. Not surprisingly.

SPITI VALLEY, HIMACHAL PRADESH, India — An array of stars twinkled over Himalayan peaks towering nearly three miles high, while below in the chilly darkness a husband and wife relaxed after their 120-mile pilgrimage. Leaning back in chairs in front of a guest house, warm in their woolen clothing, they appeared indistinguishable from the hundreds of others who had come to hear the teachings of a Buddhist leader.

What set them apart was the person they had left behind: the woman's other husband.

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4 Forgotten Facts About Combat UAVs

MQ-9 Reaper

From Popular Mechanics:

CREECH AIR FORCE BASE, Nev.—The U.S. Air Force squadrons that form the 432d Air Expeditionary Wing here are the first that exist only to fly unmanned aerial vehicles. The base, which currently hosts training and operations for MQ-1 Predators and MQ-9 Reapers, is trailblazing modern military aviation. It's a perfect place for practitioners who fly UAVs every day to set the record straight on some common misconceptions about UAVs.

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My Comment: No real surprises .... but for those who are still new to what UAVs are capable of, this is a good read.

Ancient Oceans Offer New Insight Into Origins Of Animal Life

In prehistoric times, Earth experienced two periods of large increases and fluctuations in the oxygen level of the atmosphere and oceans. These fluctuations also led to an explosion of multicellular organisms in the oceans, which are the predecessors for life as we know it today. (Credit: iStockphoto/Sebastian Meckelmann)

From Science Daily:

Science Daily (Sep. 10, 2009) — Analysis of a rock type found only in the world's oldest oceans has shed new light on how large animals first got a foothold on Earth.

A scientific team led by Professor Robert Frei at the University of Copenhagen in Denmark, and including scientists from Newcastle University, UK, and universities in Uruguay and Southern Denmark, have for the first time managed to plot the rise and fall of oxygen levels in the Earth's atmosphere over the last 3.8 billion years.

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To Hot Rocks in Earth, Just Add Water

Steam rises from cooling towers as U.S. Geothermal's Raft River geothermal power plant near Malta, Idaho. Researchers from the University of Utah's Energy and Geoscience Institute will inject cool water and pressurized water into a "dry" geothermal well at the site during a $10.2 million study aimed at making existing power plants more productive and making geothermal power feasible nationwide. Credit: U.S. Geothermal, Inc.

From Live Science:

Researchers will inject cool water and pressurized water into a “dry” geothermal well during a five-year, $10.2 million study aimed at boosting the productivity of geothermal power plants and making them feasible nationwide.

“Using these techniques to increase pathways in the rock for hot water and steam would increase availability of geothermal energy across the country,” says geologist Ray Levey, director of the Energy & Geoscience Institute (EGI) at the University of Utah.

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The Red Meat Footprint

Credit: iStockphoto

From Cosmos:

Our diets revolve around meat. But rumours abound that being vegetarian is better for the environment. Could there be some truth to it? We investigate the evidence.

Death row inmates put a lot of thought into their final meal choice. After all, it's the last food they will eat on this Earth. And their choice is telling for overwhelmingly, in the United States at least, they want meat.

Pork chops, filet mignon, steak, hamburger, meatloaf, fried chicken, sausages… with not a lentil, slice of haloumi or vegetarian lasagne in sight. Prisoners on death row might not be the most representative of groups, but their choices give an inkling of the central role meat plays in our diet.

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Where Does Sex Live In The Brain? From Top To Bottom.

Image: iStockphoto

From Discover Magazine:

Neuroscientists explore the mind's sexual side and discover that desire is not quite what we thought it was.

On April 11, 1944, a doctor named T. C. Erickson addressed the Chicago Neurological Society about a patient he called Mrs. C. W. At age 43 she had started to wake up many nights feeling as if she were having sex—or as she put it to Erickson, feeling “hot all over.” As the years passed her hot spells struck more often, even in the daytime, and began to be followed by seizures that left her unable to speak. Erickson examined Mrs. C. W. when she was 54 and diagnosed her with nymphomania. He prescribed a treatment that was shockingly common at the time: He blasted her ovaries with X-rays.

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Last Days of Big American Physics: One More Triumph, Or Just Another Heartbreak?


From The Wire Science:

BATAVIA, Illinois — High-energy particle physicists around the world are collectively holding their breath waiting for the Large Hadron Collider to come online and start unlocking the most elusive secrets of the universe. It’s as if time is standing still until their shiny new toy is ready to play with.

But not at Fermilab. Here, physicists are in the scientific equivalent of an all-out sprint, still clinging to the ever-thinning hope that before the LHC ramps up to full power, their own 28-year old particle collider, the Tevatron, will catch the coveted Higgs boson, a theoretical particle that is at the heart of the Standard Model of physics.

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Space Junk Forces Shuttle Discovery To Dodge On Way Home

Earth is seen behind Space Shuttle Discovery in this image photographed by an Expedition 20 crew member on the International Space Station soon after the shuttle and station began their post-undocking relative separation in this NASA handout photo taken September 8, 2009. The STS-128 and Expedition 20 crew concluded nine days of cooperative work onboard the shuttle and station before undocking the two spacecraft. REUTERS/NASA/Handout

From Yahoo News/Space.com:

The space shuttle Discovery will have to dodge a mysterious piece of orbital trash before trying to land in Florida Thursday.

Shuttle commander Rick Sturckow and pilot Kevin Ford will fire Discovery's thrusters at about 12:02 p.m. EDT (1605 GMT) to move their spacecraft clear of the space junk and continue on with their planned landing attempt today.

The "mystery orbital debris," as Mission Control called it, apparently came free from the shuttle or the International Space Station while both vehicles were linked during a spacewalk on Saturday. NASA engineers do not know what the object is or its size, but it has been creeping ever closer to Discovery since the shuttle fired its engines to leave the station's orbital neighborhood Tuesday.

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Japan's Space Truck Ready To Fly

From The BBC:

Japan is ready to launch its new space freighter from the Tanegashima base in the south of the country.

The 16.5-tonne unmanned H-II Transfer Vehicle (HTV) will haul cargo to the International Space station (ISS).

Its success is vitally important to the station project, which is set to lose the servicing capability of the US shuttle fleet next year.

When the orbiters retire, re-supply will be in the hands of a number of robotic vessels - the HTV included.

The logistics demands of a fully crewed, fully functional ISS will require all of the freighters to play their part.

Lift-off for the HTV is timed for 0201 local time on Friday (1701 GMT, Thursday).

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