Thursday, September 30, 2010

'Giant' Step Toward Explaining Differences In Height Among People

Scientists have identified hundreds of genetic variants that together account for about 10 percent of the inherited variation of height among people. (Credit: iStockphoto/Stefanie Timmermann)

From Science Daily:

ScienceDaily (Sep. 29, 2010) — An international collaboration of more than 200 institutions, led by researchers at Children's Hospital Boston, the Broad Institute, and a half-dozen other institutions in Europe and North America, has identified hundreds of genetic variants that together account for about 10 percent of the inherited variation of height among people.

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Are UFOs Disarming Nuclear Weapons, And If So Why?



Did UFOs Disarm Nuclear Weapons? And If So, Why? -- Live Science

At an unusual press conference recently held in Washington, D.C., a UFO author and a half-dozen or so former U.S. military airmen asserted that "The U.S. Air Force is lying about the national security implications of unidentified aerial objects at nuclear bases and we can prove it." They claim that since 1948, extraterrestrials in spaceships have not only been visiting Earth but hovering over British and American nuclear missile sites and temporarily deactivating the weapons.

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My Comment: I am skeptical .... but these guys are former senior U.S. military airmen, and they should be listened to. Unfortunately .... they have no visible proof.

Lost Language Unearthed In Letter

Photo: A letter discovered in northern Peru in 2008 showing a column of numbers written in Spanish and translated into a language that scholars say is now extinct, is seen in this undated photo released by archaeologists September 22, 2010. (HANDOUT)

From CNews:

LIMA - Archaeologists say scrawl on the back of a letter recovered from a 17th century dig site reveals a previously unknown language spoken by indigenous peoples in northern Peru.

A team of international archaeologists found the letter under a pile of adobe bricks in a collapsed church complex near Trujillo, 347 miles (560 km) north of Lima. The complex had been inhabited by Dominican friars for two centuries.

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Glacier Found To Be Deeply Cracked

While drilling holes in Alaska’s Bench Glacier, scientists discovered dozens of massive cracks that extend from the ground far up into the ice. The movement of water through these cracks could affect glacier movement and melting. Joel Harper

From Science News:

Pressure and stress can lead to a crack-up, or several, if you are a glacier. Researchers have discovered a system of deep cracks extending from the ground up into the overlying ice of southern Alaska’s Bench Glacier. The crevasses are described in the Sept. 30 Nature.

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Stonehenge Boy 'Was From The Med'

The boy was buried with around 90 amber beads

From The BBC:

Chemical tests on teeth from an ancient burial near Stonehenge indicate that the person in the grave grew up around the Mediterranean Sea.

The bones belong to a teenager who died 3,550 years ago and was buried with a distinctive amber necklace.

The conclusions come from analysis of different forms of the elements oxygen and strontium in his tooth enamel.

Analysis on a previous skeleton found near Stonehenge showed that that person was also a migrant to the area.

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Google Celebrates Birthday With Cake

Google turned 12 today. And the media giant celebrated with a pixelated birthday cake. Google.com

From Christian Science Monitor:

Twelve years ago, Larry Page and Sergey Brin registered the domain for Google.com, a site which they hoped would revolutionize the very way information is organized on the Web. It's fair to say they succeeded. And today, Google, a multi-billion dollar company based in Mountain View, Calif., is celebrating its 12th birthday with a big, digitized birthday cake logo, courtesy of the American painter Wayne Thiebaud.

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Revealed: The Secret World Of The Panda

Giant Pandas eating bamboo in Sichuan Province, China Photo: ALAMY

From The Telegraph:

New research has revealed that, contrary to popular beliefs, pandas are surprisingly well-equipped for survival.

The giant panda is one of the best-known symbols in the world, used to sell everything from electronic goods to fizzy drinks, chocolate to biscuits, liquorice to cigarettes – not to mention global conservation. Yet thanks to its shy and retiring nature, it has long been one of the planet’s most mysterious creatures. Why, for example, do pandas eat bamboo? Why do they appear to have such difficulty breeding? And how on earth has such a seemingly maladjusted species managed to survive for so long?

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Does ET Live On Goldilocks Planet?



From The Daily Mail:

An astronomer picked up a mysterious pulse of light coming from the direction of the newly discovered Earth-like planet almost two years ago, it has emerged.

Dr Ragbir Bhathal, a scientist at the University of Western Sydney, picked up the odd signal in December 2008, long before it was announced that the star Gliese 581 has habitable planets in orbit around it.

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We, Robot: What Real-Life Machines Can And Can’t Do

Photo: A lot of us teach ourselves how to reason, how to think, how to analyze new information....This has been very difficult for robots to be able to do.

From Science News:

As director of the Maryland Robotics Center, Satyandra Gupta oversees 25 faculty members working on all things robotic: snake-inspired robots, robotic swarms, minirobots for medicine and robots for exploring extreme environments on land, under the sea and in outer space. In September the Center hosted its first Robotics Day; afterward, Gupta talked robots with Science News writer Rachel Ehrenberg.

How do robots influence our lives today?

There are certain scenarios, such as manufacturing — making cars, making airplanes — where people are replacing human labor with robotic devices and the rationale is usually that it is less expensive, quality is consistent, that kind of thing. Then there are certain applications where very few humans can do the task because the skills required are so high…. Surgery would be an example. Let’s imagine that there’s a very hard-to-perform surgery that very few humans can do. Now if a robot can be trained or even teleoperated by these surgeons, then you would be able to get that performance from that robot.

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Fossil Secrets Of The Da Vinci Codex

Da Vinci realised people were wrong about the origin of Italy's fossils
(Image: Ted Spiegel/Corbis)


From New Scientist:

Did Leonardo decipher traces of ancient life centuries before Darwin?

It was to be Leonardo da Vinci's most impressive work yet. In 1483, the Duke of Milan, Ludovico Sforza, commissioned the up-and-coming artist to create a huge bronze statue of a horse, standing over 7 metres tall. Da Vinci spent the next 10 years perfecting a full-size clay model. Sadly, it was never cast in bronze. Tonnes of the metal were needed, and Sforza ended up using the earmarked supplies to make weapons for use against invading French troops. When the French army took Milan in 1499, its archers used da Vinci's clay horse for target practice.

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Paper-Thin Screens With A Twist



From The Wall Street Journal:

Lots of researchers have been trying to come up with a way to make flexible displays that work like computer screens but with a literal twist—they can be bent, rolled and folded like a sheet of paper.

The Taiwan-based Industrial Technology Research Institute, or ITRI, won the top prize in this year's Innovation Awards contest for a manufacturing technique that promises to clear the way for commercial development of high-quality displays on flexible materials.

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Making Music On A Microscopic Scale

Image of the chip containing six mass-spring systems (i.e. six tones). (Credit: Image courtesy of University of Twente)

From Science Daily:

ScienceDaily (Sep. 29, 2010) — Strings a fraction of the thickness of a human hair, with microscopic weights to pluck them: Researchers and students from the MESA+ Institute for Nanotechnology of the University of Twente in The Netherlands have succeeded in constructing the first musical instrument with dimensions measured in mere micrometres -- a 'micronium' -- that produces audible tones. A composition has been specially written for the instrument.

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Sloppy Records Cast Galileo's Trial In New Light

An 1857 painting titled "Galileo facing the Roman Inquisition" shows the astronomer standing trial before the Roman Catholic Church inquisitors. Credit: Cristiano Banti (1824–1904)

From Live Science:

When it comes to bad record-keepers, no one expects the Roman Inquisition — but that's exactly what one historian discovered while trying to resolve a centuries-old controversy over the trials of Galileo.

The Roman Catholic Church's second trial of the famed Italian astronomer has come to symbolize a pivotal culture clash between science and religion. But a broad examination of 50 years’ worth of records suggests the Roman Inquisition viewed the case more as an ordinary legal dispute than a world-changing philosophical conflict.

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Did Australian Aborigines Reach America First?

The skull of Luzia, possibly the oldest skeleton in the Americas, who has facial features distinctive of Australian Aborigines. Credit: Marco Fernandes/COSMOS

From Cosmos:

SYDNEY: Cranial features distinctive to Australian Aborigines are present in hundreds of skulls that have been uncovered in Central and South America, some dating back to over 11,000 years ago.

Evolutionary biologist Walter Neves of the University of São Paulo, whose findings are reported in a cover story in the latest issue of Cosmos magazine, has examined these skeletons and recovered others, and argues that there is now a mass of evidence indicating that at least two different populations colonised the Americas.

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Stonehenge An Ancient Tourist Destination?

Photo: Revellers watch the sunrise at Stonehenge on the day of the summer solstice in Wiltshire in southern England. New research suggests that people may have come from all over to visit the mysterious stone monoliths. (REUTERS FILES/Stephen Hird)

From CNEWS:

Stonehenge wasn't just a gathering place for locals. New research suggests that people may have come from all over Europe and the Mediterranean to visit the mysterious stone monoliths.

British scientists analyzed the teeth of people buried near Stonehenge and found that some of them had travelled great distances to arrive in southern England.

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Distant World Could Support Life

ANOTHER WORLDGliese 581 (upper left in this artist’s depiction) has six confirmed planets, including one (foreground) that orbits the star at a distance hospitable to life. Lynette Cook

From Science News:

Scientists have spotted an Earth doppelgänger that may have the right specs to harbor life, in the Libra constellation just 20 light-years distant.

Although details about conditions on the planet’s surface remain a mystery, the find suggests that many more potentially habitable planets are likely to be found. The discovery is reported online September 29 at arXiv.org and will be described in an upcoming Astrophysical Journal.

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Water Map Shows Billions At Risk Of 'Water Insecurity'


From The BBC:

About 80% of the world's population lives in areas where the fresh water supply is not secure, according to a new global analysis.

Researchers compiled a composite index of "water threats" that includes issues such as scarcity and pollution.

The most severe threat category encompasses 3.4 billion people.

Writing in the journal Nature, they say that in western countries, conserving water for people through reservoirs and dams works for people, but not nature.

They urge developing countries not to follow the same path.

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Kno Tablet Touted As Next-Gen Textbook

The Kno tablet computer. Kno

From Christian Science Monitor:

Kno, a start-up electronics firm based in Santa Clara, Calif., will soon introduce a single-screen tablet computer intended for use by students across the country. The Kno – yes, it's both the name of the device and its maker – is expected to ship with a 14.1-inch screen and video functionality. (For comparison, the iPad sports a 9.7-inch screen.) The tablet computer will be controlled via a touchscreen and a plastic stylus.

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12 Events That Will Change Everything, Made Interactive

From Scientific American:

In addition to reacting to news as it breaks, we work to anticipate what will happen. Here we contemplate 12 possibilities and rate their likelihood of happening by 2050

The best science transforms our conception of the universe and our place in it and helps us to understand and cope with changes beyond our control. Relativity, natural selection, germ theory, heliocentrism and other explanations of natural phenomena have remade our intellectual and cultural landscapes. The same holds true for inventions as diverse as the Internet, formal logic, agriculture and the wheel.

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My Comment: The web interactive page for each of the 12 events is here.

Darpa Is Looking At Young Minds For New Ideas

FIRST Robotics Competition Taking a cue from the FIRST Robotics Competition, DARPA is offering prize-based challenges to inspire high school students to design new robots. FIRST

Seeking New Defense Robots, Darpa Gives Fabrication Technology To High Schoolers -- Popular Science

Taking a page from advertising strategy, DARPA is hoping to get ‘em while they’re young. The military’s mad-science wing wants various organizations to put manufacturing equipment in 1,000 high schools around the world, part of a new program called “MENTOR” — Manufacturing Experimentation and Outreach. The partnership will include new prize-based challenges to inspire a new generation of defense manufacturers.

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