Saturday, October 9, 2010

Exoskeleton Helps the Paralysed Walk Again



From New Scientist:

Amanda Boxtel, a wheelchair user, is about to stand up. A skiing accident 18 years ago partially severed her spinal cord leaving her paralysed from the waist down. She slowly pushes herself out of the chair with crutches, teeters backward for a second, then leans forward – and takes a step. Soon she is walking around the warehouse in Berkeley, California, under her own direction.

Read more ....

Friday, October 8, 2010

'Living Dinosaurs' in Space: Galaxies in Today's Universe Thought to Have Existed Only In Distant Past

A simulation of a star forming galaxy similar to those observed. Cold gas (red) flowing onto a spiral galaxy feeds star formation. (Credit: Rob Crain, James Geach, the Virgo Consortium, Andy Green & Swinburne Astronomy Productions)

From Science Daily:

ScienceDaily (Oct. 8, 2010) — Using Australian telescopes, Swinburne University astronomy student Andy Green has found 'living dinosaurs' in space: galaxies in today's Universe that were thought to have existed only in the distant past.

The report of his finding -- Green's first scientific paper -- appears on the cover of the Oct. 7 issue of Nature.

Read more ....

What Farming Ants Can Teach Us About Bioenergy

A leaf-cutter ant foraging trail. These ants can form foraging trails in the rainforest that are hundreds of meters long containing thousands of workers. Credit: Jarrod Scott, University of Wisconsin-Madison

From Live Science:

What new methods will allow us to create biofuel from plants? Garret Suen, a computational microbiologist at the University of Wisconsin-Madison (UW) in the Department of Bacteriology is trying to find out. Suen is a post-doctoral researcher working in the lab of Cameron Currie and in January of 2011, he will be joining the faculty in the Department of Bacteriology and starting up his own lab and research program. Suen grew up in Toronto (before moving to Calgary for college), and being from Canada, he thoroughly enjoys Wisconsin winters. Suen’s current work at UW centers on how to convert cellulose found in plants into a fermentable sugar that can be used to make ethanol for fuel.

Read more ....

'Mini-Pompeii' Found In Norway


From Discovery News:

Norwegian archaeologists have unearthed a Neolithic “mini Pompeii” at a campsite near the North Sea, they announced this week.

Discovered at Hamresanden, not far from Kristiansand’s airport at Kjevik in southern Norway, the settlement has remained undisturbed for 5,500 years, buried under three feet of sand.

“We expected to find an 'ordinary' Scandinavian Stone Age site, badly preserved and small. Instead, we discovered a unique site, buried under a thick sand layer,” lead archaeologist Lars Sundström, of the Museum of Cultural History at the University in Oslo, told Discovery News.

Read more ....

Giant Moon Collision 'May Have Formed Saturn's Rings'

Saturn's rings are largely made up of icy chunks

From The BBC:

Saturn's rings may have formed when a large moon with an icy mantle and rocky core spiralled into the nascent planet.

A US scientist has suggested that the tidal forces ripped off some of the moon's mantle before the actual impact.

The theory could shed light on the rings' mainly water-ice composition that has puzzled researchers for decades.

The scientist announced her idea at a conference in Pasadena, US.

Read more ....

TechBytes: Amazon Apps Store



From ABC News:

Amazon is reportedly getting ready to open a new online application store. The Wall Street Journal reports that the apps would be for smartphones running Google's Android software. Google also has its own online store with about 80,000 apps. Apple's store has about 250,000 apps.

Read more ....

Could An 'Elixir Of Life' Really Increase Your Lifespan?

From New Scientist:

A chemical elixir can add 10 years to your life! According to the media, anyway. How much of the claim that an amino acid cocktail can boost longevity should be taken with a pinch of salt?

For starters, the study was carried out in mice. Giuseppe D'Antona at Pavia University in Italy and his colleagues added a cocktail of three branched-chain amino acids (BCAA) - isoleucine, leucine and valine - to the feed of young nine-month-old mice.

Read more ....

Video: Apollo 11 Launch At 500 Frames Per Second

Apollo 11 Saturn V Launch (HD) Camera E-8 from Mark Gray on Vimeo.

Volcanoes Wiped out Neanderthals, New Study Suggests

The Semeru volcano in Indonesia. New research suggests that climate change following massive volcanic eruptions drove Neanderthals to extinction and cleared the way for modern humans to thrive in Europe and Asia. (Credit: iStockphoto)

From Science Daily:

ScienceDaily (Oct. 7, 2010) — New research suggests that climate change following massive volcanic eruptions drove Neanderthals to extinction and cleared the way for modern humans to thrive in Europe and Asia.

The research, led by Liubov Vitaliena Golovanova and Vladimir Borisovich Doronichev of the ANO Laboratory of Prehistory in St. Petersburg, Russia, is reported in the October issue of Current Anthropology.

Read more ....

Comet May Not Have Rocked Stone Age World


From Live Science:

While most scientists agree that a large object from space likely crashed into Earth and led to the eventual demise of the dinosaurs, a new study takes aim at theories that suggest similar events spelled bad news for large animals and Stone Age hunters nearly 13,000 years ago.

For about three years, scientists have debated over what caused drastic climate changes and gaps in the archaeological record at the end of the Pleistocene Epoch, a period of time spanning from about 1.8 million to 11,500 years ago.

Read more ....

Mars Probe To Solve 'Lost Atmosphere' Mystery

The disappearance of the ancient magnetic field may have triggered the loss of the Martian atmosphere, and NASA have just announced a mission to investigate. Credit: NASA

Mars Probe To Solve 'Lost Atmosphere' Mystery -- Cosmos/AFP

WASHINGTON: The U.S. space agency NASA announced it has given the green light to a mission to Mars aimed at investigating the mystery of how the ‘red planet’ lost its atmosphere.

NASA gave the approval for "the development and 2013 launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission," the agency said in a statement, noting that the project may also show Mars' history of supporting life.

Read more ....

The End Of The World As We Know It?

The universe began in a Big Bang about 13.7 billion years ago and has been expanding at an ever accelerating rate ever since. iStockPhoto

From Discovery Magazine:

Save the date: Less than 3.7 billion years from now, the world is going to end, according to a new study.

A new study suggests the universe and everything in it could end within the Earth's lifespan -- less than 3.7 billion years from now -- and we won't know it when it happens.

But one expert says the result isn't valid because the researchers chose an arbitrary end point.

The universe began in a Big Bang about 13.7 billion years ago and has been expanding at an ever accelerating rate ever since.

Read more ....

Soyuz Launches To Space Station



From The BBC:

A Soyuz capsule carrying two Russian cosmonauts and an American astronaut has left Earth bound for the International Space Station (ISS).

Lift-off from the Baikonur cosmodrome in southern Kazakhstan occurred at the scheduled time of 0510 (2310 GMT).

Alexander Kaleri, Oleg Skripochka and Scott Kelly are due to reach the orbiting platform on Saturday.

The men will complete a five-month tour of duty aboard the laboratory as part of the Expedition 25 and 26 crews.

Read more ....

Wednesday, October 6, 2010

Statue of King Tut's Grandfather Unearthed in Luxor


From Discover News:

Part of an ancient statue of King Amenhotep III, believed to be the grandfather of King Tutankhamun, has been unearthed, Egypt's Ministry of Culture announced on Saturday.

The 4-foot (1.3-meter) by 3-foot (0.95-meter) red granite statue depicts the Egyptian pharaoh in all his power. Amenhotep III wears the double crown of Egypt, which is decorated with a sacred asp, or uraeus, and is seated on a throne next to the Theban god Amun.

Read more ....

Tuesday, October 5, 2010

Powerful Supercomputer Peers Into The Origin Of Life

New research at Oak Ridge National Laboratory explains how a ribonucleic acid enzyme, or ribozyme (pictured), uses magnesium ions (seen as spheres) to accelerate a significant reaction in organic chemistry. (Credit: Image courtesy of DOE/Oak Ridge National Laboratory)

From Science Daily:

ScienceDaily (Oct. 4, 2010) — Supercomputer simulations at the Department of Energy's Oak Ridge National Laboratory are helping scientists unravel how nucleic acids could have contributed to the origins of life.

A research team led by Jeremy Smith, who directs ORNL's Center for Molecular Biophysics and holds a Governor's Chair at University of Tennessee, used molecular dynamics simulation to probe an organic chemical reaction that may have been important in the evolution of ribonucleic acids, or RNA, into early life forms.

Read more ....

Grain of Hope: Researchers Seek A Super-Rice

From Live Science:

Food scientists are furiously racing to come up with new rice varieties and growing techniques to meet the rising demand presented by a growing population in Asia.

To discuss the challenge, rice scientists and world officials met at a symposium in New York last week, where the International Rice Research Institute (IRRI) and the Asia Society jointly released a task force report, "Never an Empty Bowl: Sustaining Food Security in Asia."

Read more ....

Japan's Murata Girl Bot Unicycles On A Curved Balance Beam (Video)



From Popular Science:

Following in the footsteps of many robots we’ve seen who perform awesome but random feats, Japanese electronics company Murata has revealed an update of their Little Seiko humanoid robot for 2010. Murata Girl, as she is known, is 50 centimeters tall, weighs six kilograms and can unicycle backwards and forwards. Whereas in her previous iteration, she could only ride across a straight balance beam, she is now capable of navigating an S-curve as thin as 2.5 centimeters (only one centimeter wider than the tire of her unicycle)

Read more ....

Asteroid Lutetia Has Thick Blanket Of Debris

Photo: About 100km wide, Lutetia is the biggest asteroid yet visited by a spacecraft

From The BBC:

Lutetia, the giant asteroid visited by Europe's Rosetta probe in July, is covered in a thick blanket of dusty debris at least 600m (2,000ft) deep.

Aeons of impacts have pulverised the space rock to produce a shattered surface that in terms of texture is much like Earth's Moon, scientists say.

The finding is one of the first to emerge from the wealth of data gathered by Rosetta during its close flyby.

The details are being discussed this week at a conference in Pasadena, US.

Read more ....

New Chip Captures Hard-to-Find Tumor Cells

Image: Capturing cancer cells: A new microfluidics chip designed to isolate tumor cells from blood captures clusters of cancer cells, shown here, which may play a role in cancer’s spread. Credit: PNAS

From Technology Review:

The devices may one day help patients skip invasive and painful biopsies.

Technologies that analyze cancer cells that circulate through a patient's bloodstream could provide a less invasive way of monitoring cancer and selecting the best treatments. So Mehmet Toner and collaborators at Massachusetts General Hospital have developed a microfluidics chip that effectively captures these rare cells, which make up just one in a billion cells in blood, in high enough numbers to analyze them for molecular markers. The device also isolated clusters of tumor cells for the first time, which may help shed light on cancer's ability to spread, or metastasize, from its initial birthplace.

Read more
....

RIM's PlayBook vs. Tomorrow's iPad

RIM's BlackBerry PlayBook tablet is seen as a natural for the enterprise.

From Computer World:

The PlayBook might not easily displace the iPad in the enterprise.

Computerworld - RIM's BlackBerry PlayBook, unveiled last week, is the latest entry in what has become a rapidly growing field of iPad competitors. But unlike most upcoming Android tablets -- the big exception being Cisco's Cius -- the PlayBook isn't meant to compete with the iPad in the consumer market. Despite its touted capabilities for multimedia, the PlayBook is primarily designed to be a business and enterprise tablet.

Read more ....