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.

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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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Space Rock Contains Organic Molecular Feast

Photo: The Murchison meteorite came down in Australia in 1969

From The BBC:

Scientists say they have confirmed that a meteorite that crashed into earth 40 years ago contains millions of different organic compounds.

It is thought the Murchison meteorite could be even older than the Sun.

"Having this information means you can tell what was happening during the birth of the Solar System," said lead researcher Dr Philippe Schmitt-Kopplin.

The results of the meteorite study are published in the Proceedings of the National Academy of Sciences.

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Nanoparticles To Clean Drinking Water

Credit: iStockphoto

From Cosmos:

BEIJING: Scientists have developed nanotechnology that purifies water using only visible light, it continues working in the dark and it kills the tougher microbes to boot.

Light is often used as a water purifier and existing methods rely on processes stimulated by ultraviolet (UV) light.

But UV accounts for just 5% of daylight so a method using visible light — which accounts for almost half — is more desirable.

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Scientists Synthesize Unique Family of Anti-Cancer Compounds

Image of one of the kinamycin compounds synthesized by Yale researchers destroying ovarian cancer cells (the spherical objects) in less than 48 hours in lab tests. (Credit: Gil Mor)

From Science Daily:

ScienceDaily (Feb. 13, 2010) — Yale University scientists have streamlined the process for synthesizing a family of compounds with the potential to kill cancer and other diseased cells, and have found that they represent a unique category of anti-cancer agents. Their discovery appears in this week's online edition of the Journal of the American Chemical Society.

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Year Of The Tiger: All About The Chinese Zodiac

From Live Science:

This Sunday, Feb. 14, marks a new year according to the Chinese calendar, which will be moving from the reign of the Ox to the year of the Tiger.

Each year on the Chinese calendar is assigned an animal from the Chinese zodiac, which rotates on a 12-year cycle. People born during a specific year are thought to have attributes of their animal — tigers are confident, daring and unpredictable, for example.

The Chinese calendar is thought to have been formulated around 500 B.C., though elements of it date back at least to the Shang Dynasty around 1,000 B.C.

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Mobile Operators Join Forces To Develop Open Apps Platform

From Wall Street Journal:

BARCELONA—Twenty-four mobile operators Monday said they had formed an alliance to build an open platform to deliver applications to all mobile phone users, in an attempt to emulate the runaway success of Apple Inc.'s App Store.

The initiative shows how even fierce rivals are coming together to try to capture the mass market in mobile Internet services.

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Climategate Academic Professor Phil Jones Admits He 'Lost Track' Of Vital Data

Professor Phil Jones from the Climate Researh Unit University of East Anglia

From The Telegraph:

Professor Phil Jones, the academic at the centre of the “climategate” scandal, has admitted he had difficulty “keeping track” of vital data used to back up global warming claims.

Prof Jones stepped down as director of the University of East Anglia’s climate change unit in December after leaked emails appeared to show academics were manipulating data to bolster claims that global warming is caused by humans.

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CSI Cairo: How Science Will Solve The Mystery Of Tutankhamun

DNA samples have been taken from Tutankhamun and other mummies from the 18th dynasty of rulers in an attempt to establish his family lineage. Getty Images

From The Independent:

New technology is helping answer the riddles in the life, and death, of the boy pharaoh. And it's cracked other historical puzzles too.

His golden funeral mask with its striped headdress has become the symbol of Egypt's ancient grandeur. Yet for all the fame that surrounds the boy King Tutankhamun, no one really knows who he was.

Now, the mystery of King Tut's lineage has finally been solved. It will be revealed to the world on Wednesday, more than 30 centuries after the pharaoh was sealed in a gold coffin.

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Online Voyeurs Flock to The Random Thrills Of Chatroulette

From The Guardian:

An addictive new website that links strangers' webcams is gaining popularity – and notoriety.

A new website that has been described as "surreal", "addictive" and "frightening" is proving a sensation around the world – and attracting a reputation as a haven for no-holds-barred, explicit material.

Chatroulette, which was launched in November, has rocketed in popularity thanks to its simple premise: internet video chats with ­random strangers.

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