Friday, March 5, 2010

First of Missing Primitive Stars Found

The newly discovered red giant star S1020549 dominates this artist's conception. The primitive star contains 6,000 times less heavy elements than our Sun, indicating that it formed very early in the Universe's history. Located in the dwarf galaxy Sculptor some 290,000 light-years away, the star's presence supports the theory that our galaxy underwent a "cannibal" phase, growing to its current size by swallowing dwarf galaxies and other galactic building blocks. (Credit: David A. Aguilar / CfA)

From Science Daily:

Science Daily (Mar. 4, 2010) — Astronomers have discovered a relic from the early universe -- a star that may have been among the second generation of stars to form after the Big Bang. Located in the dwarf galaxy Sculptor some 290,000 light-years away, the star has a remarkably similar chemical make-up to the Milky Way's oldest stars. Its presence supports the theory that our galaxy underwent a "cannibal" phase, growing to its current size by swallowing dwarf galaxies and other galactic building blocks.

Read more ....

Violent Planet: The Forces That Shape Earth


From Live Science:

Earth is a violent planet, and always has been. In fact it is much calmer today than in the past. As the planet continues to cool – 4.5 billion years after it formed – what was once likely a lava world has become a temperate planet that's two-thirds covered by water and hospitable to life.

But recent events and new research show that the geologic havoc is far from over.

Read more ....

Apple iPad's Store Debut Pushed Back


Watch CBS News Videos Online

From CBS News/AP:


(AP) The much-anticipated iPad tablet computer from Apple Inc. will start hitting U.S. store shelves on April 3, slightly later than originally planned.

When Apple unveiled the touch-screen device Jan. 27, the company said the first iPads would reach the market in "late March" worldwide, not just in the U.S.

Read more ....

YouTube Adds Video Captions For Deaf

From The BBC:

YouTube is making the tens of millions of videos it hosts more accessible to the deaf and hard of hearing by putting automatic captions on them.

The Google-owned company said this use of speech recognition technology is probably the biggest experiment of its kind online.

Previously captions were only on a small amount of content.

"A core part of YouTube's DNA is access to content," said the firm's product manager Hunter Walk.

Read more ....

Earth Raised Up Its Magnetic Shield Early, Protecting Water And Emerging Life

From Discover Magazine:

Here we are drinking coffee and tweeting and otherwise going about our lives, generally not giving much thought to the protection that the Earth’s magnetic field affords us from the solar wind. But that magnetic field is crucial for our existence. Now, new findings in Science say that this protective shield originated even 200 million years earlier than scientists had previously thought, perhaps protecting the planet’s water from evaporating away and aiding the rise of life on the early Earth.

Read more ....

Shields Down! Earth's Mag Field May Drop In A Flash

There'll be little warning if Earth's magnetic field flips (Image: NASA/SPL)

From New Scientist:

EVEN if we knew precise details of Earth's core, we would not be able to predict a catastrophic flip in the polarity of its magnetic field more than a decade or two ahead.

Our planet's magnetic field has reversed polarity from time to time throughout its history. Some models suggest that a flip would be completed in a year or two, but if, as others predict, it lasted decades or longer we would be left exposed to space radiation. This could short-circuit satellites, pose a risk to aircraft passengers and play havoc with electrical equipment on the ground.

Read more ....

Artificial Intelligence Brings Musicians Back From The Dead, Allowing All-Stars Of All Time To Jam

Rachmaninoff, Back at the Piano Where He Belongs Zenph

From Popular Science:

Want to know what a jam session between Jack White and Stevie Ray Vaughan might have sounded like, or how Billie Holliday would interpret the latest dreck from Avril Lavigne? Advances in artificial intelligence are resurrecting musical legends of the past, tapping into old recordings to establish a musician's style and personality, then applying those attributes to newer recordings of old songs, or even to songs the musician never played before.

Read more
....

Money Sharing Comes To Facebook

Photo: 16,000 online traders accept payments via Buxter's parent company.

From The BBC:


Friends on social networking site Facebook can now send small payments directly to each other via an application called Buxter.

Buxter handles transactions in Euros or US dollars, with plans to launch in Sterling in the next four weeks.

Other currencies are subject to a 5% conversion fee at the point of upload to a Buxter account.

Read more ....

Early Cannabis Use Linked To Psychosis

From Cosmos/AFP:

WASHINGTON: The longer people use cannabis or marijuana, the more likely they are to experience hallucinations or delusions or to suffer psychosis, according to a study released Saturday.

The study found that people who first used cannabis when they were aged 15 or younger were twice as likely to develop a "non-affective psychosis" - which can include schizophrenia - than those who had never used the drug.

Read more ....

Why Beer Needs Watering Down

From Times Online:

Brewers are teaming up with environmentalists to help to conserve water supplies — and ensure the pints keep flowing.

It’s enough to make beer drinkers cry into their pints. A combination of factors, including rapid population growth, expanding food needs and unpredictable weather patterns, is heralding a global water crisis. Chronic water shortages are already hitting many regions, particularly in developing countries. Industry, which accounts for about 22 per cent of global fresh water consumption, is increasingly concerned about what will happen when the taps run dry. Brewers are among the most vulnerable: a pint of beer is up to 95 per cent water. Drinkers have been warned that, as water supplies dry up, prices could rise and supplies could be threatened. The battle is on to keep the pumps open.

Read more ....

Thursday, March 4, 2010

Canine Morphology: Hunting For Genes And Tracking Mutations

Researchers studying the dog genome have a new understanding of why domestic dogs vary so much in size, shape, coat texture, color and patterning. (Credit: iStockphoto/Nataliya Kuznetsova)

From Science Daily:

Science Daily (Mar. 3, 2010) — Why do domestic dogs vary so much in size, shape, coat texture, color and patterning? Study of the dog genome has reached a point where the molecular mechanisms governing such variation across mammalian species are becoming understood.

In an essay published in the March 2, 2010 issue of PLoS Biology, National Human Genome Research Institute (NHGRI) researchers discuss advances in understanding the genomic mechanisms controlling canine morphology.

Read more ....

Dog-Sized Creature Was Almost A Dinosaur

The newly identified dinosaur relative, called Asilisaurus kongwe, was about the size of a large dog. Here a skeletal reconstruction of the animal is compared with a 5'6" human for scale. Credit: Sterling Nesbitt.

From Live Science:


A four-legged animal about the size of a large dog with a long tail is now the oldest known relative of dinosaurs, dating back some 240 million years. Paleontologists recently examined the bones from at least 14 individuals of this proto-dinosaur that were discovered in southern Tanzania.

The dino-like animal was small, weighing about that of a young child, and likely munched on plants.

Read more ....

Tracing King Tut's Family Tree In London

A colossal statue of Amenhotep III - King Tut's only grandfather - can
be found at the British Museum, Room 4.


From The Independent:

Tutankhamun has always captured popular imagination, and been a major draw for museums.

The British Museum's 1972 exhibition of artefacts from his tomb smashed all expectations in the box office, drawing over 1.6 million visitors over its nine month duration. The pharaoh nicknamed 'King Tut' has been the source of more speculation, satire and popular culture references than any other male king of Egypt. Last week pathologists announced the results from their studies into the genetic relationship of eleven mummies from the Egyptian New Kingdom (mid 16th to early 11th centuries BC), including those of the legendary pharaoh Tutankhamun.

Read more ....

Plans To Fight Cyberwar Are A 'Recipe For Disaster'

Michael Chertoff, former Secretary at the US Department of Homeland Security

From The Guardian:

Senior security experts have criticised the west's approach to online threats, suggesting that not enough is being done to stem the growing tide of cyberattacks.

Michael Chertoff, a former secretary at the US Department of Homeland Security, said on Wednesday that current cybersecurity policies were a "recipe for disaster" that could inadvertently encourage a virtual attack equivalent to "the next Pearl Harbour".

Read more ....

More News On Cyberwar

A New Age for US Cybersecurity -- Tech News World
Former Intelligence Chief: U.S. Would Lose Cyberwar -- Information Week
U.S. would lose a cyber war, former intell chief warns -- Government Computer News
Cyberwar Hype Intended to Destroy the Open Internet -- Threat Level
US cyber defense strategy details hit the Internet -- France 24
China's Hacker Army -- Foreign Policy
Is Iran's Cyberwar Sustainable? -- National Journal
The Real Meaning Of Cyberwarfare -- Forbes
Cyberwar hype was cooked up to sell Internet-breaking garbage to the military -- Boing Boing

A Measure For The Multiverse

Touching the multiverse (Image: Eoin Ryan)

From The New Scientist:

WHEN cosmologist George Ellis turned 70 last year, his friends held a party to celebrate. There were speeches and drinks and canapés aplenty to honour the theorist from the University of Cape Town, South Africa, who is regarded as one of the world's leading experts on general relativity. But there the similarity to most parties ends.

Read more ....

Japan's New Hovering Hummingbird Bot Has Four Wings, Weighs Under 3 Grams

Chiba University's Latest Hummingbird 'Bot Chiba University

From Popular Science:

Biomimicry isn't new, nor are robotic hummingbirds, but the latest 'bot to come out of Chiba University in Japan makes even the DARPA-inspired Nano Air Vehicle -- which is very cool, needless to say -- look like last year's robotics.

Read more ....

Dinosaur Extinction Link To Crater Confirmed

From The BBC:

An international panel of experts has strongly endorsed evidence that a space impact was behind the mass extinction event that killed off the dinosaurs.

They reached the consensus after conducting the most wide-ranging analysis yet of the evidence.

Writing in Science journal, they rule out alternative theories such as large-scale volcanism.

Read more ....

Shuttle Flights Would Continue Under New Proposal

From The Orlando Sentinel:

WASHINGTON — The space shuttle era could get a new lease on life under a bill filed today by U.S. Sen. Kay Bailey Hutchison, R-Texas.

The measure would delay the shuttle’s planned retirement in 2010 until NASA is confident that a replacement spacecraft is ready or that the shuttle and its massive payload bay is no longer needed to keep the International Space Station afloat through 2020.

The 37-page bill also authorizes an additional $1.3 billion in NASA spending next year above President Barack Obama’s request of $19 billion. The extra money would help prepare NASA for as many as two additional shuttle flights per year after 2010, as well as fund new spacecraft development.

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....

Google vs. Apple: An Epic Battle

By David Goldman, staff writer

From CNN:

NEW YORK (CNNMoney.com) -- Let the smartphone smackdown begin.

In the blue corner, wearing black, weighing in at 4.8 ounces, the 31-month champion of the touch screen phones: Apple's iPhone!

In the red corner is the challenger, appearing on every carrier, a new entrant to the heavy-weight battle: Google's Android!

Read more ....

Millions Of YouTube Videos To Get Subtitles With 'Auto-Captioning'

From Times Online:

YouTube introduced a system today that will automatically create subtitles for all its English language videos.

The technology, called “auto-captioning”, uses complex algorithms to work out what is being said in a video and convert it into text. Once the feature is turned on, the words will appear on the bottom of the video screen just like subtitles in a film.

Read more ....