Long-Promised Cancer Revolution Begins

From New Scientist:

A personalised blood test that can identify tumour DNA could be the first step towards a long-promised revolution in the way cancer is treated.

In the short term, the test - reported by Victor Velculescu of Johns Hopkins Kimmel Cancer Center in Baltimore, Maryland, and his colleagues in Science Translational Medicine - could be used to spot cancer recurrence before tumour growth shows up on scans, meaning that treatment could be started earlier.

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Video: Half-Kilometer-Long Explosive Whip Clears IEDs The Explode-y Way

From Popular Science:

Clearing battlefield obstacles has pitted trapper against sapper since Roman times. But whereas the minefields and dragon teeth of previous conflicts merely slowed advancing armies, the IEDs favored by today's insurgents have become the number one killer in the Long War. Now, to ensure safe passage through trap laden Afghan paths, the British Army is fighting fire with even bigger fire in the form of their newly developed Python explosive whip.

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My Comment: Expect more "boom-booms" when this mine clearing platform is used.

Did Apple Just Undercut Amazon On E-Books?

From PC World:

The $10 bestseller e-book might not be dead yet: Apple reportedly can sell e-books on the iPad for the same prices Amazon once offered.

The New York Times reports that Apple worked a provision into its agreement with publishers, requiring them to occasionally sell bestselling books at a discount, possibly as low as $10 per book.

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Photosynthesis: A New Source of Electrical Energy? Biofuel Cell Works in Cactus

Photo: Biofuel cell inserted in a cactus and graph showing the course of electrical current as a function of illumination of the cactus (black: glucose, red: O2).

From Science Daily:

Science Daily (Feb. 18, 2010) — Scientists in France have transformed the chemical energy generated by photosynthesis into electrical energy by developing a novel biofuel cell. The advance offers a new strategy to convert solar energy into electrical energy in an environmentally-friendly and renewable manner. In addition, the biofuel cell could have important medical applications.

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Memory-Erasing Drugs Could Result From New Brain Discovery

From Live Science:

A newfound brain mechanism erases memories on purpose to help make way for new ones. Scientists suggest it could lead to the development of memory-erasing drugs that make a person forget certain things.

Researchers have often debated about the reasons we forget — for instance, why newly acquired short-term memories are fleeting. One theory suggests that such memories are simply unstable, fading over time. Others contend interference causes short-term memories to be overridden as new data comes in.

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WHO: Combine H1N1, Regular Flu Vaccines

Natalie Matutschovsky for TIME.com

From Time Magazine:

(LONDON) — The World Health Organization is recommending that swine flu be added to regular flu vaccines next season.

The swine flu pandemic virus, or H1N1, emerged too late last year to be added to the regular flu vaccine, and a separate vaccine was needed.

For this year's northern hemisphere flu season, however, the two vaccines should be combined, WHO flu chief Keiji Fukuda said Thursday after the agency met this week to decide which strains should be recommended to drug makers for vaccines.

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Astronomers Discover Secret Of The Supernova

Supernovas are often used by astronomers as 'cosmic mile markers' to measure the expansion of the universe Photo: AFP/GETTY IMAGES

From The Telegraph:

Nasa astronomers may have finally discovered what initially sparks a cosmic explosion, according to new research.

Scientists used Nasa's Chandra X-Ray laboratory to study supernovas in five nearby elliptical galaxies and the central region of the Andromeda galaxy, a spiral galaxy closest to our own, the Milky Way.

Marat Gilfanov of the Max Planck Institute for Astrophysics in Germany said: "It was a major embarrassment that we did not know how they worked. Now we are beginning to understand what lights the fuse of these explosions."

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Half The Planet's Primates In Peril Due To The Destruction Of Their Habitat And Trade In Bushmeat

From The Daily Mail:

Half the world's species of monkey, gorilla and chimpanzee could soon disappear, experts have warned.

The destruction of their habitats and a thriving trade in bushmeat have pushed many to the brink of extinction, according to a report spearheaded by Bristol Zoo.

In parts of the Far East the proportion of primates at risk is as high as 90 per cent.

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Coming Without Warning

From Discovery News:

Since the recent discovery of abrupt climate change -- that big changes can come quickly -- researchers have been looking for "warning signs" to help us avert "regime shifts" that could suddenly alter things we take for granted, such as storm tracks and weather patterns, sea levels and water supplies.

Greenland temperature profile, from Climate Crash: Abrupt Climate Change and What It Means for Our Future, Joseph Henry Press, 2005. Recognizing a warning sign is tricky, though, because in a system that is subject to abrupt change, small variations can lead to impacts that are all out of proportion. A widely recognized warning sign or "tipping point" is the recent unexpectedly high loss of Arctic sea ice, which could trigger major reorganizations of ocean and atmospheric circulation. This temperature profile derived from ice cores in Greenland (taken from a book I wrote on the subject), shows numerous abrupt climate changes during the past 100,000 years.

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Inside The Olympics' 'Mission Control'

Magnus Alvarsson, chief integrator for technology consultant Atos Origin, says that he is practically bored with all the computer systems running so smoothly. Photo by Ina Fried/CNET

From CNET:

VANCOUVER, British Columbia--While the Winter Olympics have brought many headaches for organizers, the computing systems haven't been one of them.

In fact, things have been pretty quiet inside the low-rise building in east Vancouver where the technology operations are headquartered.

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Moon Dreams The Americans May Still Go To The Moon Before The Chinese

From The Economist:

WHEN America’s space agency, NASA, announced its spending plans in February, some people worried that its cancellation of the Constellation moon programme had ended any hopes of Americans returning to the Earth’s rocky satellite. The next footprints on the lunar regolith were therefore thought likely to be Chinese. Now, though, the private sector is arguing that the new spending plan actually makes it more likely America will return to the moon.

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What Happens At Absolute Zero?

The Boomerang Nebula is the coldest natural object known in the universe, seen here by the Hubble Space Telescope (Image: ESA/NASA)

From The New Scientist:

The curious things that happen at low temperatures keep on throwing up surprises. Last week, scientists reported that molecules in an ultra-cold gas can chemically react at distances up to 100 times greater than they can at room temperature.

In experiments closer to room temperature, chemical reactions tend to slow down as the temperature decreases. But scientists found that molecules at frigid temperatures just a few hundred billionths of a degree above absolute zero (−273.15°C or 0 kelvin) can still exchange atoms, forging new chemical bonds in the process, thanks to weird quantum effects that extend their reach at low temperatures.

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The Amazing View From The International Space Station's Brand New Window

Sahara from Space: The world beneath your feet Soichi Noguchi

From Popular Science:

Twitpics from space just got even more interesting with the addition of a brand new cupola window aboard the International Space Station. Japanese astronaut Soichi Noguchi has accordingly updated his Twitter feed with a fresh Twitpic of the Sahara desert framed within the cupola.

"Let there be light! Cupola windows open toward Sahara desert. Priceless!" Noguchi tweeted.

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New Type of Genetic Variation Could Strengthen Natural Selection

Scanning electrograph image of Saccharomyces cerevisiae. (Credit: Image courtesy of NASA)

From Science Daily:

Science Daily (Feb. 18, 2010) — The unexpected discovery of a new type of genetic variation suggests that natural selection -- the force that drives evolution -- is both more powerful and more complex than scientists have thought.

"We have discovered that natural selection can act not only on whole organisms and individual genes, but also on gene networks," says Antonis Rokas, assistant professor of biological sciences at Vanderbilt University and senior author of the paper reporting the discovery that was published in the February 18 issue of the journal Nature.

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Tiger Woods And Sex Addiction: Real Disease Or Easy Excuse?

From Live Science:

Tiger Woods is scheduled to break his months-long silence about the sex scandal that has plagued the world's most famous athlete. It's not clear how he will explain himself, though according to some reports Woods has been attending a private rehabilitation clinic in Mississippi that treats addictions — including sex addiction.

Infidelity is not uncommon among men (and women) all over the world. Plenty of people cheat on their spouses: according to one survey, 25 percent of men and 17 percent of women have been unfaithful. That, of course, doesn't make them sex addicts.

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Origin Of Cosmic Explosions Discovered

This is from the Chandra X-Ray Observatory and shows evidence from Nasa's Chandra X-ray Observatory and the Magellan telescopes suggesting a star has been torn apart by an intermediate mass black hole in a globular cluster. Photo: AFP/Getty

From The Telegraph:

Astronomers who have long used supernovas as cosmic markers to help measure the expansion of the universe now have an answer to the nagging question of what causes the massive stellar explosions.

"These are such critical objects in understanding the universe," said Marat Gilfanov of the Max Planck Institute for Astrophysics in Germany, describing his team's study.

"It was a major embarrassment that we did not know how they worked. Now we are beginning to understand what lights the fuse of these explosions."

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The Secret Of A Film's Success Is All Down To Mathematics, Claim Scientists

Formulaic: A scene from Star Wars: Revenge Of The Sith, which fits the mathematical formula perfectly

From The Daily Mail:

Ever left the cinema feeling the film you have just seen is more than a little formulaic? You could be right.

Research shows that many modern blockbusters follow a mathematical formula that ensures they grab our attention.

It seems that they key to their success is not a stunning lead actor or a tear-jerking strip, but ensuring that camera shots of a certain length regularly recur.

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Extreme Breath-Holding: How It's Possible

Photo: Peter Colat, a Swiss freediver, held his breath underwater for 19 minutes and 21 seconds, breaking the world record in breath-holding. AP

From Discovery News:

The new record in breath-holding recently went to a Swiss man who didn't breathe for nearly 20 minutes. Scientists explain how he did it.

THE GIST:

* The new record for breath-holding is 19 minutes and 21 seconds.
* There are tricks to holding your breath for long periods of time, but the practice can be dangerous.
* There may be long-lasting health consequences to extreme breath-holding.

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Yahoo, Microsoft Make Search Pact Official (FAQ)

Yahoo is ready to turn over the indexing and ranking of search results (on the left) to Microsoft, emphasizing its work on presenting those results (on the right). (Credit: Yahoo)

From CNET:

It took eight months, but the search strategy that Microsoft and Yahoo settled on after years of flirting is about to get started.

The U.S. Department of Justice and European Union gave their blessing to the deal early on Thursday, paving the way for Microsoft to take over the business of providing search results to Yahoo while Yahoo will get to sell search ads on both Yahoo and Bing. Yahoo is busy reminding anyone who will listen that it will still control the way search results are presented on its pages, while Microsoft thinks it can improve its search algorithms with access to Yahoo's massive audience.

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New Role For Robot Warriors

Airmen roll out a Predator unmanned aircraft in Indian Springs, Nev. Such aircraft are tightly controlled by remote human operators. Some artificial-intelligence proponents believe next-generation robots could function more autonomously. Tony Avelar/The Christian Science Monitor/File

From The Christian Science Monitor:

Drones are just part of a bid to automate combat. Can virtual ethics make machines decisionmakers?

Science fiction sometimes depicts robot soldiers as killing machines without conscience or remorse. But at least one robotics expert today says that someday machines may make the best and most humane decisions on the battlefield.

Guided by virtual emotions, robots could not only make better decisions about their own actions but also act as ethical advisers to human soldiers or even as observers who report back on the battlefield conduct of humans and whether they followed international law.

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