A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Wednesday, September 1, 2010
Why Do Hurricanes Often Curve Out To Sea?
From Live Science:
The forecast path of Hurricane Earl, expected to run parallel to the U.S. East Coast before heading offshore, is a typical one for Atlantic storms to follow.
The reason: They are steered away from land by prevailing wind patterns and surrounding environmental flow.
Read more ....
Books Are Better Without Pages
A man browses through books at the Cecil H. Green Library on the Stanford University Campus, Dec. 17, 2004 in Stanford, Calif. (Justin Sullivan/Getty Images)
From Global Post:
The paper book is dead. Long live the narrative.
CAMBRIDGE, Mass. — Kindle owners buy twice as many books as non-Kindle owners. Just one of the many signs that while the paper book is dead, the narrative will live on.
If you are saying to yourself, “That sounds horrible. I hope books do not go away,” I ask you to consider the world’s poorest and most remote kids.
Read more ....
My Comment: Alas .... this is true. Hardcover books will only be a novelty item in the next few decades.
Why Music Is Good For You
From Scientific American:
A survey of the cognitive benefits of music makes a valid case for its educational importance. But that's not the best reason to teach all children music, says Philip Ball.
Remember the Mozart effect? Thanks to a suggestion in 1993 that listening to Mozart makes you cleverer, there has been a flood of compilation CDs filled with classical tunes that will allegedly boost your baby's brain power.
Read more ....
My Comment: For me .... when there is a melody that I like .... it gives me a sense of relaxation and peace of mind.
Conduct Virtual Explorations of Mars with New WorldWide Telescope Feature
From Universe Today:
Love 3-D imagery of Mars? There's now a firehose just for you! The WorldWide Telescope has teamed up with
Read more ....
My Comment: So much for my telescope.
Earliest Fossil Evidence Of Humans In Southeast Asia?
From Earth Magazine:
Modern humans reached the islands of Southeast Asia by approximately 50,000 years ago, but our ancestors’ journey was not easy. Even during times of low sea level, a voyage to some of these islands would have required crossing open water, leaving many scientists to wonder how humans arrived on the most isolated islands. Now the story is growing more complicated: A group of archaeologists has discovered a 67,000-year-old foot bone that they say represents the earliest-known presence of humans in the northern Philippines and may be among the oldest-known traces of modern humans in all of Southeast Asia — that is, if the bone truly belongs to Homo sapiens. The bone’s small size and unusual features make it difficult to determine exactly which species of Homo it was — Homo sapiens, Homo floresiensis or something else?
Read more ....
My Comment: Makes one wonder why early man migrated here. Climate? Food sources?
Obesity: Drink Till You Drop
The Economist:
A magic elixir is shown to promote weight loss.
CONSUME more water and you will become much healthier, goes an old wives’ tale. Drink a glass of water before meals and you will eat less, goes another. Such prescriptions seem sensible, but they have little rigorous science to back them up.
Read more ....
My Comment: I prefer soup over water, but the impact is the same.
Olderst House In Britain Discovered
Oldest House In Britain Discovered To Be 11,500 Years Old -- The Telegraph
Archaeologists have discovered Britain's earliest house dating back 11,500 years.
The home is so old that when it was built Britain was still part of Continental Europe.
The circular structure near Scarborough, North Yorkshire, which dates back to the Stone Age 8,500 years BC, was found next to a former lake.
Read more ....
My Comment: This is why history is fascinating.
Our Eavesdropping-On-ET Strategy Not Likely To Work
From Wired Science:
Bad news for SETI: Even with the most sensitive radio telescopes yet designed, humans probably won’t find intelligent aliens by listening in on their phones and televisions, a new study finds.
“Eavesdropping on ET is very hard, even with the latest radio telescopes,” said astronomer Duncan Forgan of the University of Edinburgh, a coauthor of the study. “If we don’t try any other ways of searching for aliens, then we may never find them.”
Read more ....
My Comment: No ET call home I guess.
Men Who Earn Less, Cheat More
Men and women who earn much larger salaries than their partner are more likely to cheat, a new study finds, although women are half as likely to be unfaithful. (Credit: iStockphoto)
From Futurity:
CORNELL (US)—Men who aren’t the primary breadwinners in a relationship are more likely to be unfaithful, according to a new study. But, it’s not about the money, says the lead researcher. It’s about sexual identity.
“Any identity that’s important to you, if you feel it’s threatened, you’re going to engage in behavior that will reinstate your place in that group,” says Christin Munsch, a sociology doctoral candidate at Cornell University. She presented the results of her study at the American Sociological Association’s annual meeting in Atlanta this month.
Read more ....
Monday, May 17, 2010
Editor's note
Because of work I have taken a brief hiatus from this blog. My work contract ends at the end of June, and I will resume blogging on July 15.
Friday, April 30, 2010
Improvements In Sniper Rifle Technology
As part of a training exercise, the members of a sniper team man a 7.62mm Springfield Armory M21 Sniping rifle (left) and sights through the scope of a 7.62mm M24 Sniper rifle (right). Photo courtesy Department of Defense Defense Visual Information Center
The U.S. Sniper's More Accurate, Quieter Rifle -- Popular Mechanics
Army Snipers in Afghanistan will receive an improved rifle this fall.
For snipers, every war is different. Recognizing the differences between conditions in Iraq and Afghanistan, the Army is now selecting a contractor to upgrade the 22-year-old Remington bolt-action rifle to become a more effective killing machine. The Army will pour about $5.6 million into upgrades to the M24, with the new gear expected to be delivered to troops by this fall. The M24's barrel is being modified to shoot heavier .300 Winchester Magnum rounds, instead of the 7.62mm NATO ammunition, which should extend the rifle's maximum effective range by hundreds of yards to a maximum of about 1400 yards. The suppressor will reduce the noise and flash of the gun so snipers can stay in their hiding positions much longer after they fire.
Read more ....
Wednesday, April 28, 2010
Chile Wins The Extremely Large Telescope
From Cosmos/AFP:
BERLIN: Chile won the right to host the largest-ever telescope, the European Southern Observatory (ESO) has announced, and it is due to begin operation in 2018.
The other main contender site for the European Extremely Large Telescope (ELT) was the Spanish isle of La Palma in the Canary Islands off western Africa.
The ESO, an intergovernmental astronomical research agency, already has three facilities operating in the Atacama Desert, including the Very Large Telescope (VLT) in the town of Paranal, which is currently considered the foremost European-operated observatory.
Read more ....
"Rogue" NASA Administrator Angling To Save Ares I Rocket Program From Budget Axe
The Ares I-X Rollout NASA's prototype heavy-lift rocket, the Ares I-X, on the launchpad in October 2009.
From Popular Science:
In a speech to NASA employees and the nation on April 15, President Obama unveiled a vision for U.S. space exploration that didn't include Constellation or development of its Ares I rocket. The next day, Constellation Program Manager Jeff Hanley issued his response to Obama: Not so fast.
Read more ....
The Future Of Body Armor
Although it will be some time before the new germanium-based fabric has the same stopping power as this bulletproof vest, scientists are now exploring the possibility of using it to harness solar power. iStockphoto
'Tissue Paper' Could Stop Bullets, Harness Solar Energy -- Discovery News
Who wouldn't want a shirt that could stop a bullet and power your iPod? A new fabric can do just that.
A soft "tissue paper" made from normally brittle germanium and silicon contains individual fibers as strong as bulletproof Kevlar. Woven into traditional fabric or embedded in hard plastics, the new nanowires could stop bullets, harvest solar energy or perform dozens of other tasks.
Read more ....
Tuesday, April 27, 2010
Brain-Like Computing On An Organic Molecular Layer
Magnetic resonance images of human brain during different functions appear on top. Similar evolving patterns have been generated on the molecular monolayer one after another (bottom). A snapshot of the evolving pattern for a particular brain function is captured using Scanning Tunneling Microscope at 0.68 V tip bias (scale bar is 6 nm). The input pattern to mimic particular brain function is distinct, and the dynamics of pattern evolution is also typical for a particular brain operation. (Credit: Anirban Bandyopadhyay)
From Science Daily:
ScienceDaily (Apr. 26, 2010) — Information processing circuits in digital computers are static. In our brains, information processing circuits -- neurons -- evolve continuously to solve complex problems. Now, an international research team from Japan and Michigan Technological University has created a similar process of circuit evolution in an organic molecular layer that can solve complex problems. This is the first time a brain-like "evolutionary circuit" has been realized.
Read more ....
Chimps Understand And Mourn Death, Research Suggests
The chimpanzee Pansy, the morning after she died.
Credit: Nicola McCleery, Blair Drummond Safari Park.
Credit: Nicola McCleery, Blair Drummond Safari Park.
From Live Science:
Chimpanzees may gather in hushed quiet to watch a fellow ape in her dying moments, and chimp mothers in the wild may carry their infants' mummified remains for weeks, according to new research on how humanity's closest living relatives deal with the deaths of those closest to them.
Insights into how chimpanzees respond to the death of one of their own are rare. One such instance came with the final hours of Pansy, a chimp more than 50 years old who lived in a Scottish safari park.
Read more ....
The Search For Genes Leads To Unexpected Places
HUNTER Edward M. Marcotte and colleagues at the University of Texas at Austin have found hundreds of genes involved in human disorders. Ben Sklar for The New York Times
From New York Times:
Edward M. Marcotte is looking for drugs that can kill tumors by stopping blood vessel growth, and he and his colleagues at the University of Texas at Austin recently found some good targets — five human genes that are essential for that growth. Now they’re hunting for drugs that can stop those genes from working. Strangely, though, Dr. Marcotte did not discover the new genes in the human genome, nor in lab mice or even fruit flies. He and his colleagues found the genes in yeast.
Read more ....
Apple Sued By Elan Microelectronics Over Touch-Screen Technology
From Times Online:
The sale of Apple's iPhone and iPad in the US is under threat after the US International Trade Commission initiated a formal investigation into the company for allegedly infringing a patent covering multi-touch technology.
The ITC, which has the power to ban the import and sale of products, said it was responding to a request from the Taiwanese touchscreen maker Elan Microelectronics, which has a patent for technology that detects the simultaneous presence of two or more fingers on a touchscreen or touchpad.
Read more ....
Wind Turbines Shed Their Gears
Photo: Power ring: This three-megawatt wind turbine uses permanent magnets and a design that makes it significantly lighter than a conventional geared turbine. Credit: Siemens
From Technology Review:
Both Siemens and GE bet on direct-drive generators.
Wind turbine manufacturers are turning away from the industry-standard gearboxes and generators in a bid to boost the reliability and reduce the cost of wind power.
Siemens has begun selling a three-megawatt turbine using a so-called direct-drive system that replaces the conventional high-speed generator with a low-speed generator that eliminates the need for a gearbox. And last month, General Electric announced an investment of 340 million euros in manufacturing facilities to build its own four-megawatt direct-drive turbines for offshore wind farms.
Read more ....
From Technology Review:
Both Siemens and GE bet on direct-drive generators.
Wind turbine manufacturers are turning away from the industry-standard gearboxes and generators in a bid to boost the reliability and reduce the cost of wind power.
Siemens has begun selling a three-megawatt turbine using a so-called direct-drive system that replaces the conventional high-speed generator with a low-speed generator that eliminates the need for a gearbox. And last month, General Electric announced an investment of 340 million euros in manufacturing facilities to build its own four-megawatt direct-drive turbines for offshore wind farms.
Read more ....
Subscribe to:
Posts (Atom)