Tuesday, February 16, 2010

Red Wine, Chocolate Among Foods That Fight Cancer

More great news for chocolate lovers: it helps fight cancer. Source: The Australian

From The Australian/AFP:

CABERNET and chocolate are potent medicine for killing cancer, according to new research.

Red grapes and dark chocolate join blueberries, garlic, soy, and teas as ingredients that starve cancer while feeding bodies, Angiogenesis Foundation head William Li said at the Technology Entertainment Design Conference in Long Beach, California.

``We are rating foods based on their cancer-fighting qualities,'' Li said. ``What we eat is really our chemotherapy three times a day.''

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Diamond Nanowire Device Could Lead To New Class Of Diamond Nanomaterials

A diamond-based nanowire device. Researchers used a top-down nanofabrication technique to embed color centers into a variety of machined structures. By creating large device arrays rather than just "one-of-a-kind" designs, the realization of quantum networks and systems, which require the integration and manipulation of many devices in parallel, is more likely. (Credit: Illustrated by Jay Penni.)

From Science Daily:

Science Daily (Feb. 15, 2010) — By creating diamond-based nanowire devices, a team at Harvard has taken another step towards making applications based on quantum science and technology possible.

The new device offers a bright, stable source of single photons at room temperature, an essential element in making fast and secure computing with light practical.

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King Tut's Mom And Dad ID'ed

From Live Science:

Candidates for King Tut's mother and father have been identified using DNA analyses from royal Egyptian mummies.

King Tutankhamun ruled from 1333 to 1324 B.C., during the period of ancient Egyptian history known as the New Kingdom.

Though he is possibly the most well-known of the Egyptian pharaohs, many mysteries still exist about the life, death and parentage of King Tut. But new DNA tests may have helped answer the question of what killed Tut, as well as exactly who his parents were.

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King Tut Died Of Malaria, Had A Club Foot: New Study

The removal of the lid of the sarcophagus of the mummy of King Tutankhamen in his underground tomb in the Valley of the Kings in Luxor November 4, 2007. Reuters/Ben Curtis/Pool

From The National Post:

WASHINGTON -- The celebrated pharaoh Tutankhamun had a club foot, walked with a cane and was killed by malaria, a study showed on Tuesday.

Researchers from Egypt, Italy and Germany used DNA testing to draw "the most plausible" family tree to date for Tutankhamun and computerized tomography (CT) scans to determine that the pharaoh and his forebears were unlikely to have had the feminine physiques they are depicted with in 3,000-year-old artifacts.

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A Faster Wireless Web

Mobile speed: Fasp-AIR will make its first appearance in the wild as an iPhone application designed to speed media uploads over wireless networks. Credit: Aspera

From Technology Review:

A new protocol called fasp-AIR promises speedier mobile downloads.

Transfers of large amounts of data across the Internet to wireless devices suffer from a key problem: The Transmission Control Protocol (TCP) used to send and receive that data can be unnecessarily slow.

A company called Aspera has now announced an alternative protocol designed to accelerate wireless transfer speeds. Called fasp-AIR, it includes new proprietary approaches to addressing problems of data transfer that are unique to wireless communications. The original fasp protocol is already used to boost regular Internet transfers. It was used, for instance, to speed up the transfer of files from New Zealand to the U.S. during production of the movie Avatar.

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'Climategate' Scientist Speaks Out

Professor Phil Jones. Photograph: University of East Anglia

From Scientific American:

Climatologist Phil Jones answers his critics in an exclusive interview with.

Phil Jones holds himself defensively, his arms crossed tightly in front of his chest as if shielding himself from attack. Little wonder: Jones has spent the past three months being vilified for his central role in what is now called "climategate."

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Why Google Wants A Faster Internet

Scott Barbour / Getty Images

From Time Magazine:

There was no lack of, well, buzz about Google's new Buzz social-media platform last week, but more important were a series of moves that suggest the search giant is ready to take a tentative step toward fixing one of its longest-held gripes: the speed of Internet connections in the U.S.

In a blog post on Feb. 10, Google product managers Minnie Ingersoll and James Kelly laid out the company's plan to provide as many as 500,000 people in a small number of locales with fiber-optic Internet connections capable of one gigabit per second (Gbps), more than 100 times faster than the typical U.S. broadband connection speed today. It would be a blazing-fast upgrade, capable of downloading a full-length HD movie in under 90 seconds.

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Scientists Discover The Secret Of Ageing

From The Financial Times:

One of the biggest puzzles in biology – how and why living cells age – has been solved by an international team based at Newcastle University, in north-east England.

The answer is complex, and will not produce an elixir of eternal life in the foreseeable future.

But the scientists expect better drugs for age-related illnesses, such as diabetes and heart disease, to emerge from their discovery of the biochemical pathway involved in ageing.

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Did 'Dark Stars' Spawn Supermassive Black Holes?

A massive dark star voraciously eating matter and dark matter until it is well over 100,000 times the mass of the sun (NASA/Ian O'Neill).

From Discover Magazine:

Approximately 200 million years after the Big Bang, the universe was a very different place.

For starters, there was no starlight as there were no stars. This period was known descriptively as the "Dark Ages." As there were no stars, only clouds of the most basic elements persisted, fogging up the cosmos.

Although it's believed the first stars (known as "Population III stars") were sparked when hydrogen and helium gases cooled enough to clump together, collapsing under gravity and initiating nuclear fusion in the star cores (thus generating heavier elements), there's another possibility.

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A Gene For Alzheimer's Makes You Smarter

An intellectual advantage (Image: Joerg Sarbach/AP/PA)

From The New Scientist:

A GENE variant that ups your risk of developing Alzheimer's disease in old age may not be all bad. It seems that young people with the variant tend to be smarter, more educated and have better memories than their peers.

The discovery may improve the variant's negative image (see "Yes or no"). It also suggests why the variant is common despite its debilitating effects in old age. Carriers of the variant may have an advantage earlier in life, allowing them to reproduce and pass on the variant before its negative effects kick in. "From an evolutionary perspective it makes sense," says Duke Han at Rush University Medical Center in Chicago.

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Why Does Time Fly When You Are Having Fun?


From The BBC News:

It might seem like a bit of an odd question, but what speed does time travel at?

The obvious answer is that it ticks by at exactly the rate of 60 seconds every minute. But new research into our perception of time shows that for us humans, time is a lot more complicated.

Read more ....

Monday, February 15, 2010

Cameras of the Future: Heart Researchers Create Revolutionary Photographic Technique

The image shows a drop of milk falling into a beaker of water. A video was made at the same time, using the same camera, and represents the same image data. The still image has a 16 fold greater spatial resolution (see swirls of milk in the beaker), and it can be decoded into the video frames played in sequence to reveal the high-speed motion content. (Credit: Copyright Dr Gil Bub, University of Oxford)

From Science Daily:

Science Daily (Feb. 15, 2010) — Scientists at the University of Oxford have developed a revolutionary way of capturing a high-resolution still image alongside very high-speed video -- a new technology that is attractive for science, industry and consumer sectors alike.

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Why Is The Sun's Atmosphere So Hot?

A schematic diagram of the cycle of mass in the solar atmosphere. High speed upflows seen in the magnetic upper chromosphere as Type-II spicules, get thrust into the corona; this material is visible at a wide range of temperatures, and some of it becomes entrained in the coronal magnetic field. Later, this material falls out along the same magnetic field lines, most likely as a phenomena called "coronal rain."

From Live Science:

The 2006 launch of the multinational Hinode satellite changed the picture of the Sun for astrophysicists. For two astrophysicists in particular, the resulting imagery offered a voyage of discovery and the thrill of unraveling a long-held solar mystery.

Earth's atmosphere can obscure the view of unaided ground-based telescopes, but, unimpeded by this problem, the high-resolution telescope flying on Hinode captures images of the Sun in unparalleled detail.

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The Car In front Will Be Carbon Fibre

Volkswagen AG's carbon-fibre sports car prototype, at the Tokyo Motor Show in 2005. The cars of the future will be like this with knobs on. Photo: Reuters/ERIKO SUGITA

From The Telegraph:

A nano-scale material developed in Britain may one day yield wafer-thin cellphones and light-weight, long-range electric cars powered by the roof, boot and doors, according to researchers.

For now, the new technology - which is a patented mix of carbon fibre and polymer resin that can charge and release electricity just like a regular battery - has not gone beyond a successful laboratory experiment.

But if scaled up, it could hold several advantages over existing energy sources for hybrid and electric cars, according to the scientists at Imperial College London who developed it.

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Bay Window View Installed On Space Station



From CBS News:

Astronauts Attach Cupola to New Tranquility Module.

(CBS) A multi-window cupola was successfully moved Monday from the new Tranquility module's outboard port to an Earth-facing hatch where the observation deck will provide bay-window views.

After resolving problems with jammed bolts and sticky latches, Astronauts Kay Hire and Terry Virts - operating the space station's robot arm - moved the cupola into position for attachment at Tranquility's nadir port.

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Why I'm An ebook Convert -- Commentary

The Kindle . . . ideal for a furtive read of celebrity memoirs.
Photograph: Mario Tama/Getty Images


From The Guardian:

A Kindle or ebook won't have that 'new book smell' – but no one's going to judge you by its cover.

Following my blithering about the iPad the other week, I found myself thinking about ebooks. That's my life for you. A rollercoaster. Until recently, I was an ebook sceptic, see; one of those people who harrumphs about the "physical pleasure of turning actual pages" and how ebook will "never replace the real thing". Then I was given a Kindle as a present. That shut me up. Stock complaints about the inherent pleasure of ye olde format are bandied about whenever some new upstart invention comes along. Each moan is nothing more than a little foetus of nostalgia jerking in your gut. First they said CDs were no match for vinyl. Then they said MP3s were no match for CDs. Now they say streaming music services are no match for MP3s. They're only happy looking in the rear-view mirror.

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Google Street View Snowmobile Gives A Slopes-Eye-View Of Winter Olympics Resort



From The Daily Mail:


First there was the Google car, which roamed the roads of Britain to build up a Street View perspective of the nation.

Then came the Google Trike, powered by super-strong employees to chart harder to reach areas such as Stone Henge.

Now the internet search giant has headed to the mountains with the Google snowmobile.

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The Hottest Science Experiment On The Planet

Brookhaven National Laboratory

From Discover Magazine:

In a Long Island lab, gold particles collide to form a subatomic stew far hotter than the sun.

Rocking the thermometer at 4 trillion degrees Celsius, a subatomic soup that might reflect the state of matter shortly after the Big Bang has set a new world record: It's the hottest substance ever created in a lab. The previous record, recorded at Sandia National Lab in 2006, was a balmy 2 billion degrees Celsius. The core of the sun burns at a chill 15 million degrees.

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Primordial Giant: The Star That Time Forgot

Messages from a long-lost universe (Image: Tim Gravestock)

From New Scientist:

At first, there didn't seem anything earth-shattering about the tiny point of light that pricked the southern Californian sky on a mild night in early April 2007. Only the robotic eyes of the Nearby Supernova Factory, a project designed to spy out distant stellar explosions, spotted it from the Palomar Observatory, high in the hills between Los Angeles and San Diego.

The project's computers automatically forwarded the images to a data server to await analysis. The same routine kicks in scores of times each year when a far-off star in its death throes explodes onto the night sky, before fading back to obscurity once more.

But this one did not fade away. It got brighter. And brighter. That's when human eyes became alert.

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Giant Redwoods May Dry Out; Warming To Blame?

Fog shrouds redwoods in California's Humboldt Redwoods State Park.
Photograph by Michael Nichols, National Geographic Stock

From The National Geographic:

Declining fog cover on California's coast could leave the state's famous redwoods high and dry, a new study says.

Among the tallest and longest-lived trees on Earth, redwoods depend on summertime's moisture-rich fog to replenish their water reserves.

But climate change may be reducing this crucial fog cover. Though still poorly understood, climate change may be contributing to a decline in a high-pressure climatic system that usually "pinches itself" against the coast, creating fog, said study co-author James Johnstone, an environmental scientist at the University of California, Berkeley.

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