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.
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Friday, October 8, 2010
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.
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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.
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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: NASAMars 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.
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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. iStockPhotoFrom 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.
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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.
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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.
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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.
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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."
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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)
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Asteroid Lutetia Has Thick Blanket Of Debris
Photo: About 100km wide, Lutetia is the biggest asteroid yet visited by a spacecraftFrom 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.
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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: PNASFrom 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.
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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.
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TechBytes: Google TV
From ABC News:
Google TV is a step closer to becoming a reality. The company announced that CNN, HBO and the NBA are on board to provide content, along with Netflix and Amazon's video store. Google TV aims to let viewers watch TV and surf the web on the same screen.
If you want to fly like an owl, you've got your big chance. A new video game is in stores, based on the animated movie "Legend of the Guardians, the Owls of Ga'hoole." Libe Goad of Games.com checked it out.
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Signal Achievements In Army History (Photos)
In 1860, the man in the center of this photo, Albert Myer, became the first-ever signal officer of the U.S. Army. (He's seen here some months later during the Peninsula campaign of the Civil War.) While the government liked Myer's ideas on signaling well enough to establish the U.S. Army Signal Corps at that time, the early years of the undertaking faced any number of challenges--ungainly technology, bureaucratic infighting, lack of funding and staffing. But the seed was planted in those early days, and the Signal Corps has now been around for 150 years (making this year the sesquicentennial), at the forefront of technologies from the telegraph to radio, radar, and satellite communications. Photo by U.S. ArmyCSN Editor: For more photos, go here.
Analyst: Competitors Can't Catch Up To iPad
Apple's iPad(Credit: Apple)
From CNET:
A slew of upcoming iPad competitors won't be able to match Apple's tablet anytime soon, Deutsche Bank analyst Chris Whitmore said in a recent note to investors.
"We believe Apple's lead in the tablet market will prove difficult to close by the onslaught of competing products coming over the next several quarters," Whitmore said Monday in a research note obtained by Fortune. "Ultimately, we expect the slew of upcoming competition to fall flat from a user-experience standpoint while struggling to materially undercut the iPad on price."
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Stuck Mars Rover Gets New Mission
Spirit's right-front wheel, visible in this October 2009 image, has not worked since 2006. It is the least-stuck of the rover's six wheels at the current location, called "Troy." NASA/JPL-Caltech From Discovery News:
NASA's Mars rover Spirit, trapped in sand, has a new mission in store if and when it wakes from hibernation.
No one would begrudge NASA's Mars rover Spirit -- six years into a mission pegged for 90 days, stuck in sand and lacking power to phone home -- retirement.
Instead, in the spirit of making lemonade out of lemons, scientists are preparing a new round of studies uniquely suited for a stuck Mars lander.
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Marine Life Census Charts Vast Undersea World
This new copepod, Ceratonotus steiningeri, was first discovered 5,400 metres deep in the Angola Basin in 2006. It was also collected in the southeastern Atlantic, as well as some 13,000 kilometres away in the central Pacific Ocean. Scientists are puzzled about how it achieved such widespread distribution and avoided detection for so long. Credit: Jan MichelsFrom Cosmos:
LONDON: Results of the first ever global marine life census have been unveiled, revealing a startling overview after a decade-long trawl through the murky depths.
The Census of Marine Life estimated there are more than one million species in the oceans, with at least three-quarters of them yet to be discovered.
The US $650-million international study discovered more than 6,000 potentially new species, and found some species considered rare were actually common.
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What Makes Us Age? Ticking of Cellular Clock Promotes Seismic Changes in Chromatin Landscape Associated With Aging
Each time a cell divides, the protective "caps" at the tip of chromosomes (red and green dots) erode a little bit further. As telomeres wear down, their DNA undergoes massive changes in the way it is packaged. These changes likely trigger what we call "aging." (Credit: Image: Courtesy of Dr. Jan Karlseder, Salk Institute for Biological Studies)From Science Daily:
ScienceDaily (Oct. 4, 2010) — Like cats, human cells have a finite number of lives: once they divide a certain number of times (thankfully, more than nine) they change shape, slow their pace, and eventually stop dividing -- a phenomenon called "cellular senescence."
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