CERN Rivals See Melting Magnets As Par For Course

A Sept. 10, 2008 file photo shows European Organisation for Nuclear Research (CERN) scientists working at computers in the Cern's control center during the switch on operation of the Large Hadron Collider (LHC), the world's biggest atom-smasher in a mission to answer some of the most perplexing questions in the cosmos controol, Wednesday, Sept. 10, 2008, in Geneva, Switzerland. The daring success of the world's largest atom smasher on its opening day was more surprising to scientists than the troubles it subsequently developed. The meltdown of a connection between superconducting magnets nine days later at CERN was more expected. (AP Photo/Fabrice Coffrini, Pool, File)

From Yahoo News/AP:

GENEVA - The daring success of the world's largest atom smasher on its opening day was more surprising to many scientists than the troubles it subsequently developed.

A problem with a magnet connection will delay the start of experiments for half a year, partly because the $3.8 billion accelerator is so complicated to repair. Physicists — some of whom waited two decades to use the new equipment — will now have to wait three more weeks for the damaged section to be warmed up to room temperature.

They can then get inside to see what went wrong.

Yet such glitches are not uncommon. Michael Harrison, who worked on Fermilab's Tevatron collider and designed and built the United States' other superconducting collider at Brookhaven on Long Island, said both machines had similar startup problems.

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Why The Large Hadron Collider Is Already On The Fritz

From Time Magazine - Science:

Anyone who has struggled to change a fuse in their home should pity the scientists at the CERN laboratory in Geneva. Last Friday, just nine days after celebrating the successful test run of the largest particle accelerator ever constructed, a tiny electrical connection between two magnets overheated and caused a minor meltdown.

The Large Hadron Collider (LHC) broke.

Although a final evaluation is yet to be completed, scientists believe the fault caused the machine to lose the near absolute-zero temperature it must maintain to operate. For now, however, repair work can't begin because the machine is still too cold; it will take about a month to warm up the area to a temperature at which replacement parts can be inserted. It will take another month to cool it back down, and given that CERN has pledged not to run its giant machine — which requires as much power as the entire city of Geneva — during winter months when Europe's energy needs are highest, Friday's breakdown could delay the actual smashing of atoms until early next year.

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PHOTOS: Best Science Images of 2008 Announced

First Place, Photography: "The Glass Forest"

From The National Geographic:

September 25, 2008--Tiny green diatoms create the illusion of a fernlike forest as they attach to their marine-invertebrate hosts.

Mario De Stefano of the Second University of Naples, Italy, captured this miniscule "jungle" from the Mediterranean Sea with a scanning electron microscope.

The image earned first place in the photography category of the 2008 International Science and Engineering Visualization Challenge.

The awards are given annually by the National Science Foundation and the journal Science for images that employ modern technology to visualize complex scientific topics. (See some of last year's winners.)

The winners will be announced in tomorrow's issue of Science.

--Brian Handwerk
—Image courtesy Mario De Stefano/The Second University of Naples/Science

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Top 10 Scrapped Spaceship Designs

Space: the final frontier, and a veritable graveyard of wacky, premature or impossible concepts for getting people there. From radioactive Mars ships to Russian space shuttle knock-offs, check out our top 10 spaceship drop-outs.

From Discovery Magazine:

10. Von Braun Ferry Rocket

Wernher Von Braun, designer of the German V-2 rocket, also dreamed up plenty of spaceships in his day -- including the Saturn V launch system that made it possible for Americans to step onto the moon.

But one that never left the drawing board was this three-stage "ferry rocket." Collier's Magazine ran the drawing on the cover of a 1952 issue touting "Man Will Conquer Space Soon".

So far, the difficulty of space travel is the only thing conquering anyone.

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Chinese Astronauts Return To Earth

China's Shenzhou-7 spacecraft's re-entry module landed safely in Siziwang Banner in the Inner Mongolia Autonomous Region Sunday, Sept. 28, 2008. (AP Photo/Xinhua, Wang Jianmin)

From CBS News/Science:

(AP) Chinese astronauts returned to earth and emerged triumphant from their capsule Sunday after successfully completing the country's first-ever spacewalk mission.

State broadcaster CCTV showed their Shenzhou 7 spaceship landing under clear skies in the grasslands of China's northern Inner Mongolia region at 5:37 p.m. local time. Premier Wen Jiabao applauded at mission control in Beijing.

"The astronauts feel very good," mission commander Zhai Zhigang said as the vessel floated down to earth on a red-and-white-striped giant parachute.

After landing, the three astronauts were seen sipping bottled water as they were given medical examinations inside the module. They stayed inside for about 45 minutes to adapt to the Earth's gravity before slowly crawling out of the narrow circular entrance of the capsule.

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Bees Can Count

From Live Science:

Honeybees are clever little creatures. They can form abstract concepts, such as symmetry versus asymmetry, and they use symbolic language — the celebrated waggle dance — to direct their hivemates to flower patches. New reports suggest that they can also communicate across species, and can count — up to a point.

With colleagues, Songkun Su of Zhejiang University in Hangzhou, China, and Shaowu Zhang of the Australian National University in Canberra managed to overcome the apian impulse to kill intruders and cultivated the first mixed-species colonies, made up of European honeybees, Apis mellifera, and Asiatic honeybees, A. cerana. The researchers confirmed that the two species have their own dialects: foraging in identical environments, the bees signaled the distance to a food source with dances of different durations.

Remarkably, despite the communication barrier, A. cerana decoded A. mellifera's dance and found the food.

Also at the Australian National University, Marie Dacke and Mandyam V. Srinivasan trained European honeybees to pass a particular number of colored stripes in a tunnel to get a food reward, which was placed by a stripe. When they removed the food, the bees still returned to the same stripe.

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Earth's Magnetic Field Reversals Illuminated By Lava Flows Study

Polarity reversals have occurred hundreds of times at irregular intervals throughout the planet's history – most recently about 780,000 years ago – but scientists are still trying to understand how and why. (Credit: iStockphoto/Tobias Machhaus)

From Science Daily:

ScienceDaily (Sep. 26, 2008) — Earth's north magnetic pole is shifting and weakening. Ancient lava flows are guiding a better understanding of what generates and controls the Earth's magnetic field – and what may drive it to occasionally reverse direction.

The main magnetic field, generated by turbulent currents within the deep mass of molten iron of the Earth's outer core, periodically flips its direction, such that a compass needle would point south rather than north. Such polarity reversals have occurred hundreds of times at irregular intervals throughout the planet's history – most recently about 780,000 years ago – but scientists are still trying to understand how and why.

A new study of ancient volcanic rocks, reported in the Sept. 26 issue of the journal Science, shows that a second magnetic field source may help determine how and whether the main field reverses direction. This second field, which may originate in the shallow core just below the rocky mantle layer of the Earth, becomes important when the main north-south field weakens, as it does prior to reversing, says Brad Singer, a geology professor at the University of Wisconsin-Madison.

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Memory Surprisingly Unreliable, Study Shows

From Cosmos:

LIVERPOOL, UK: Our memories of major past events can be surprisingly unreliable, says a new study of the July 2005 London bombings, which found that people can easily convince themselves they've seen things that never happened.

"Some people think that our memories are like video recorders and that if you press play the memories come flooding back. It doesn't work like that at all and should not form the basis of legal decision making" said James Ost, a psychologist from the University of Portsmouth, England.

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Does Hot Water Freeze Faster Than Cold Water?

From Live Science:

Determining whether or not hot water can freeze faster than cold water may seem like a no-brainer. After all, water freezes at 0 degrees Celsius. And wouldn’t water hot enough to kill E. coli bacteria (about 120 degrees Fahrenheit or 50 degrees Celsius) take a longer path than cooler water at a fall New England beach (about 60 degrees Fahrenheit or 15 degrees Celsius) towards a frigid future as ice? While a logical assumption, it turns out that hot water can freeze before cooler water under certain conditions.

This apparent quirk of nature is the "Mpemba effect," named after the Tanzanian high school student, Erasto Mpemba, who first observed it in 1963. The Mpemba effect occurs when two bodies of water with different temperatures are exposed to the same subzero surroundings and the hotter water freezes first. Mpemba’s observations confirmed the hunches of some of history’s most revered thinkers, such as Aristotle, Rene Descartes and Francis Bacon, who also thought that hot water froze faster than cold water.

Evaporation is the strongest candidate to explain the Mpemba effect. As hot water placed in an open container begins to cool, the overall mass decreases as some of the water evaporates. With less water to freeze, the process can take less time. But this doesn’t always work, especially when using closed containers that prevent evaporated water from escaping.

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Rocket Man Is Sucessful Crossing The English Channel -- News Updates And Links

Yves Rossy flies across the channel using his jet wing. The former Swiss Air pilot traced the route first flown by French aviator Loius Bleriot (Fabrice Coffrini / AFP / Getty Images)

Rocket Man Completes First One-Man Jetpack
Flight Across Channel -- Daily Mail

He came. He soared. He conquered.

Birdman Yves Rossy powered into the record books yesterday with a remarkable cross-Channel flight - and a grin almost as big as his wingspan.

The Swiss adventurer stood on the White Cliffs of Dover after flying from France with a jet-propelled wing on his back and declared: 'It's like a dream come true.'

He parachuted into an English field 22 miles from Calais 13 minutes after takeoff. The 49-year-old aviator flew at up to 125mph after jumping from a plane 8,200ft above France.

Four jet engines on the single, 8ft wing allowed him to prove what he has always believed - that with a little help from technology, there's no reason why man shouldn't fly like a bird.

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More News on The Rocket Man

"Fusion Man" makes historic Channel flight -- Reuters
Exclusive: I followed jetman Yves Rossy during the historic Channel crossing -- Times Online
To infinity... or just Dover?: Jetman crosses the English Channel -- The Independent
Jet Man Crosses English Channel -- New York Times
Swiss pilot flies across English Channel by jetpack -- National Post
Swiss 'rocketman' crosses the English Channel in 10 minutes (Pictures) -- L.A. Times

What's Driving China's Space Efforts?

This undated photo released on Tuesday September 23, 2008, by China's official Xinhua news agency shows technicians help the Shenzhou-7 manned spaceship to dock with the Long-March II-F rocket at an assembly plant. (AP Photo/Xinhua, Qin Xian'an)

From The BBC:

The launch of Shenzhou-VII by China is another reminder of the country's growing confidence and capability in space.

It delivers a message to the traditional space powers: after a slow start, China is rising fast.

This mission is a critical step in a "three-step" human spaceflight programme aimed at docking spacecraft together to form a small orbiting laboratory and, ultimately, building a large space station.

It has sent a robotic spacecraft, Chang'e, to the Moon and there are plans to land a robotic rover on the lunar surface in 2010.

Last year, China faced international criticism when it used a medium-range ballistic missile to destroy an ageing weather satellite in a weapons test.

But what are the forces driving Beijing's space endeavours?

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In A Storm Surge, Elevation Is The Key To Survive

Ike Obliterated Most Homes, But Spared One On Church Street -- Houston Chronicle

There's a new landmark in Gilchrist, one of the towns on Bolivar Peninsula that Hurricane Ike ravaged and left for dead.

The fire station is gone. The post office is gone. Every structure on the gulf side of this tight-knit community is gone.

Except for one house.

Standing tall, as if in defiance of Ike's windy, watery wrath, is the home of Pam and Warren Adams, who built the place in 2005 after Hurricane Rita destroyed their older home on the same lot.

On Friday, the first day many residents were allowed back on the peninsula, the couple returned to Church Street, ready to help neighbors whose homes no longer stood with theirs.

"I think I'm going through survivor's guilt," said Pam Adams, even though her home is uninhabitable, its main floor covered with mud brought in by the storm surge. "But the fact that the house is standing, that it survived, is awesome. Gilchrist is still here. It's faith and hopefulness."

The Adams had already been back to see their house, so they knew what to expect. But for the people who live west of Rollover Pass — the residents and homeowners returning to the peninsula for the first time since the hurricane — it was surreal.

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UN Urged To Coordinate Killer Asteroid Defences

From The New Scientist:

The technology to detect and deflect dangerous space rocks already exists – all that's missing is someone to coordinate its use.

That is the finding of a two-year investigation by the Association of Space Explorers (ASE), an international group of astronauts, cosmonauts, and members of space community. The group unveiled the results of its research at the offices of the Google Foundation in San Francisco yesterday.

The report asks the UN to assume responsibility for responding to potentially catastrophic asteroid threats. "For 4.5 billion years, we've been bashed continuously by asteroids. It's time for that to stop," former Apollo 9 astronaut Rusty Schweickart told the assembly.

The ASE's vision is first for a global information network, coordinated by the UN, that uses data from ground- and space-based telescopes to find, track and rate the risk of near-Earth objects (NEOs).

Currently, NASA is watching 209 NEOs, none of which is considered to be dangerous. But a threat is likely to be detected within the next 15 years, according to the ASE. "New telescopes coming online will increase these discoveries by a factor of 100," said Ed Lu, astronaut on space shuttle Atlantis.

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Extracting Energy From The Tides

Water Powered: Two prototype balloons for CETO’s wave farm. Photo by Jason Thomas

Burning the Tide -- Popsci

Alan Burns made a fortune in the oil business. But as oil wanes, he’s convinced that clean energy will be—must be—the next big thing. And so this inventor has poured his fortune into a challenge far greater than finding new oil deposits: extracting energy from the ocean

Alan Burns breaks the surface with a huge grin on his face, his baggy black wetsuit hanging off his body like walrus skin. It’s a scorching February afternoon, and we’re floating in the clear blue water of the Indian Ocean. To our left is the Australian resort island of Rottnest. To our right—just beyond Burns’s dazzling white yacht—is several thousand miles of open sea. And beneath us, the kelp forest where we had been diving moments before is swaying to the rhythm of the waves. “Can you feel the power down there?” Burns asks as we bob in the water, his sunburned cheeks puckered up behind a dripping diving mask. “This is what made me think of it, really.”

Burns is a prodigious inventor and a staunch supporter of clean energy, but he’s no sentimental environmentalist. He’s an oilman. He made his first fortune in the mid-1970s with oil and gas discoveries off Australia’s northwestern coast. In 1987 he founded the exploration company Hardman Resources, which, after an extremely profitable series of finds off the coast of Africa, was sold in 2006 to another oil company for more than $1 billion. Today the 67-year-old entrepreneur is among the wealthiest men in Perth, the tropical, seaside capital of Western Australia. And although he still runs a mineral-exploration company, he spends 90 percent of his time nurturing the wave-power-generation system he first sketched out some 30 years ago.

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Van Gogh Painting Uncovered By New Xray Machine

Rolling back the centuries: Dr Karen Rickers, above, fires the accelerator

From The Telegraph:

A new technique promises to reveal hundreds of masterpieces hidden beneath later works. Harry de Quetteville reports

It amounts to the biggest single art find: a host of unseen works by masters old and new, from Rembrandt to Van Gogh and Picasso. But these works can't be seen on the walls of any gallery or museum. And they are hidden not in a safe or bank vault, but on canvases which the artists themselves painted over.

Now, however, scientists are employing a revolutionary technique to reveal these spectacular images. Using circular particle accelerators, hundreds of metres across, they fire Xrays 10,000 times more powerful than any hospital scan at the priceless paintings.

It is not the first time that art historians have employed science to peer beyond the façade of masterworks. Leonardo, Brueghel and Courbet are some of the many artists whose canvases are emerging as ultra-valuable palimpsests, where the original image has been muffled by over-eager restoration or concealed by over-painting.

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New Life Found in Old Tombs

From Live Science:

Talk about secrets of the crypt: Two newly discovered species of bacteria have been found on the walls of ancient Roman tombs.

Bacteria often grow on the walls of underground tombs, causing decay and damaging these archaeological sites. Scientists in Italy found the two new microbes while studying decayed surfaces in the Catacombs of Saint Callistus in Rome.

The Catacombs of Saint Callistus are part of a massive underground graveyard that covers 37 acres. The tombs, named after Pope Saint Callistus I, were built at the end of the second century. More than 30 popes and martyrs are buried in the catacombs.

The new bacteria, part of the Kribbella genus first discovered in 1999, were isolated from whitish-gray patinas, or coatings, on surfaces in the catacombs. They have been named Kribbella catacumbae and Kribbella sancticallisti.

The discovery is detailed in the September issue of the International Journal of Systematic and Evolutionary Mircobiology.

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Why Earth's Magnetic Field Flip-Flops

Earth's magnetic field may actually be two fields from separate sources. Credit: Dreamstime

From Live Science:

Every so often, Earth's magnetic field flips on its head, turning the magnetic North Pole into the South Pole and vice versa.

It last happened 780,000 years ago, and is predicted to occur again in about 1,500 years ... maybe. The overall frequency is hard to predict — there was one period in Earth's history when the field didn't reverse for 30 million years.

Why these flip-flops happen at all is a great riddle, but a new hypothesis on the origins of the magnetic field could shed light on the reason.

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The Finest Science Images of 2008: Your Pick

From Wired Science:

The year's finest science images and visualizations have been announced -- and now it's your turn to pick a winner.

The entries come from the 2008 International Science and Engineering Visualization Challenge, sponsored by the National Science Foundation and the journal Science.

Below are not only the winners of the photography, illustration and visualization categories, but the runners-up. The images are so uniformly amazing that you might prefer one of the contenders.

One week from now, we'll close the voting and announce your category winners -- and, of course, the über-winner.

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Scientists Report Advance in Stem Cell Alternative

Human embryonic stem cell (gold) growing on a layer of supporting cells (fibroblasts).

From the Washington Post:

Scientists reported yesterday that they have overcome a major obstacle to using a promising alternative to embryonic stem cells, bolstering prospects for bypassing the political and ethical tempest that has embroiled hopes for a new generation of medical treatments.

The researchers said they found a safe way to coax adult cells to regress into an embryonic state, alleviating what had been the most worrisome uncertainty about developing the cells into potential cures.

"We have removed a major roadblock for translating this into a clinical setting," said Konrad Hochedlinger, a Harvard University stem cell researcher whose research was published online yesterday by the journal Science. "I think it's an important advance."

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Russia, Georgia and the Space Station

An Editorial From The New York Times:

Unless the Senate acts soon, the United States could lose its access to the International Space Station. The country is in a bind because NASA plans to retire the aging space shuttle fleet two years from now. Without a Congressional waiver, the agency will be barred from buying seats on Russia’s space vehicles.

Many members of Congress are understandably furious over Russia’s invasion of Georgia. Unless they approve a waiver, the United States will have to remove its crew from the space station in 2011 — leaving a very expensive investment essentially to the Russians.

The shuttles’ successor vehicle, the Orion, won’t be ready before 2015. That leaves a five-year gap where the only way to reach the station is via Russia’s Soyuz vehicles. The capsules carry Russian cosmonauts and ferried American astronauts after the Columbia accident.

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