From The Telegraph:
Throat cancer cases have soared by 50 per cent in men in the last 25 years due to obesity and bad diet, researchers have found.
Back in the eighties around 2,600 men were diagnosed with oesophageal cancer every year but now the figure is more than 5,100.
The most dramatic rise was among men in their 50s, as rates increased by 67 per cent over the same period.
Read more ....
A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Thursday, September 2, 2010
When Drones Go Wild
When Drones Go Rogue In Friendly Skies, How Do We Bring Them Home? -- Popular Science
An advanced fly-by-wire system capable of landing grossly damaged unmanned aircraft—demonstrated on video saving a plane missing 80 percent of one wing—is key to solving one of unmanned flight’s biggest problems.
Word spread last week that a rogue MQ-8B Fire Scout copter drone entered restricted airspace just 40 miles shy of Washington D.C. after losing contact with its operators. The revelation occurred smack in the middle of AVUSI 2010, the world’s largest UAV tradeshow. And it served as a poignant reminder that all the game-changing technology on display here at the Denver Convention Center still has some innovating to do, especially when flight crews lose control of their unmanned craft.
Read more ....
My Comment: The video is impressive .... watch it.
Shape-Shifting Robot Compensates For Damaged Limb
From New Scientist:
Think that shape-shifting robots, or ones that march on no matter how many limbs they lose, are just for Terminator films? Think again. A team of European roboticists have developed software that allows a modular robot to adapt when one part stops working.
David Johan Christensen at the University of Southern Denmark in Odense, working with Alexander Spröwitz and Auke Ijspeert at the Swiss Federal Institute of Technology in Lausanne, simulated a quadruped robot constructed from a dozen Roombots – identical rounded robots that have been developed in Lausanne and which can combine to form a variety of modular shapes (see picture).
Read more ....
Astronaut’s Eye View: Time-Lapse Videos of Earth
From Wired Science:
A NASA astronaut on the Space Shuttle Endeavor brought space back down to Earth. Astronaut Don Pettit took over 85 time-lapsed videos of Earth from his stint on the International Space Station to highlight features of the changing planet.
"There is phenomenology that happens on a timescale that you can't see in real time," he said. "It occurred to me that making time-lapse movies on the space station would bring out things that you normally don't observe."
Read more ....
Death Of The Couch Potato:
More users are watching TV on their laptops than ever before, according to a new study (picture posed by model)
Death Of The Couch Potato: Study Finds More Than A Third Of Viewers Now Watch Their Favourite TV Shows Online -- Daily Mail
An increasing number of viewers are watching their favourite TV shows online rather than on television, a new survey as found.
More than a third of users (34 per cent) now watch their favourite programmes online compared to only 29 per cent who watch them mostly on television.
The figures - from a joint survey by SeeSaw.com and Radio Times - show how the way we consume television is changing rapidly.
Read more ....
My Comment: Count me as one of those who watches 90% of his shows and movies online.
Double Space Strike 'Caused Dinosaur Extinction'
From The BBC:
The dinosaurs were wiped out 65 million years ago by at least two space impacts, rather than a single strike, a new study suggests.
Previously, scientists had identified a huge impact crater in the Gulf of Mexico as the event that spelled doom for the dinosaurs.
Now evidence for a second impact in Ukraine has been uncovered.
This raises the possibility that the Earth may have been bombarded by a whole shower of space rocks.
Read more ....
My Comment: Regardless if there was one or more asteroid strikes .... it was a bad day for the dinosaurs when the first one happened.
The dinosaurs were wiped out 65 million years ago by at least two space impacts, rather than a single strike, a new study suggests.
Previously, scientists had identified a huge impact crater in the Gulf of Mexico as the event that spelled doom for the dinosaurs.
Now evidence for a second impact in Ukraine has been uncovered.
This raises the possibility that the Earth may have been bombarded by a whole shower of space rocks.
Read more ....
My Comment: Regardless if there was one or more asteroid strikes .... it was a bad day for the dinosaurs when the first one happened.
Oxford English Dictionary 'Will Not Be Printed Again'
From The Telegraph:
The next edition of the Oxford English Dictionary, the world’s most definitive work on the language, will never be printed because of the impact of the internet on book sales.
Sales of the third edition of the vast tome have fallen due to the increasing popularity of online alternatives, according to its publisher.
A team of 80 lexicographers has been working on the third edition of the OED – known as OED3 – for the past 21 years.
Read more ....
Researchers Create Ultra-Sensitive Robotic Nose Using Frog Eggs As An Olfactory Sensor
From Popular Science:
Researchers at the University of Tokyo are using frog eggs to enhance what might seem like an unlikely element of robotics: olfactory sensing. By injecting the eggs with the DNA from various insects known for expressing keen senses of smell, the team was able to create a robotic nose that can detect molecules at levels as low as a few parts per billion.
Read more ....
Wednesday, September 1, 2010
Roots of Gamblers' Fallacies and Other Superstitions: Causes of Seemingly Irrational Human Decision-Making
From Science Daily:
ScienceDaily (Aug. 31, 2010) — Gamblers who think they have a "hot hand," only to end up walking away with a loss, may nonetheless be making "rational" decisions, according to new research from University of Minnesota psychologists. The study finds that because humans are making decisions based on how we think the world works, if erroneous beliefs are held, it can result in behavior that looks distinctly irrational.
Read more ....
My Comment: I guess saying 'the Devil made me do it' is not going to fly.
ScienceDaily (Aug. 31, 2010) — Gamblers who think they have a "hot hand," only to end up walking away with a loss, may nonetheless be making "rational" decisions, according to new research from University of Minnesota psychologists. The study finds that because humans are making decisions based on how we think the world works, if erroneous beliefs are held, it can result in behavior that looks distinctly irrational.
Read more ....
My Comment: I guess saying 'the Devil made me do it' is not going to fly.
Massive Mega-Star Challenges Black Hole Theories
This artist's impression shows the magnetar in the very rich and young star cluster Westerlund 1. This remarkable cluster contains hundreds of very massive stars, some shining with a brilliance of almost one million suns. Credit: ESO / L. Calçada.
From Live Science:
Astronomers have discovered a massive star that once dwarfed our sun and is now challenging theories of how stars evolve, die and form black holes.
The star is a peculiar cosmic object known as a magnetar. Magnetars are extremely dense, super-magnetic stars that can form from supernova explosions. [Photo of the massive star. ]
Read more ....
My Comment: That is one hell of a big (and heavy) star.
Loud Video: NASA Test Fires Largest-Ever Solid Rocket Motor
From Popular Science:
In Utah today, NASA completed a successful test of the world's largest, most powerful solid rocket motor, the DM-2. For two minutes, the motor, designed to provide up to 3.6 million pounds of thrust, roaringly fired a column of flame, while some 760 instruments monitored its every aspect. Best to turn down your speakers before the countdown in this video hits zero.
Read more ....
Arctic Oil And Gas Drilling Ready To Take Off
From New Scientist:
DRILLING for oil kicked off in Greenland's Arctic waters last week - just weeks after the Deepwater Horizon leak was finally plugged - angering environmental groups. Cairn Energy, based in Edinburgh, UK, is the first company to explore Greenland's waters for oil. It won't be the last.
Interest in the Arctic - which holds 13 per cent of the world's remaining oil and 30 per cent of its gas - is booming, driven by the rising price of oil and a shortage of other places for multinational companies to drill.
Read more ....
My Comment: Forget about Greenland, it is what Canada, the U.S., and Russia will be doing in the arctic that has the greatest potential on impacting the environment.
Can The Pentagon Be Made WikiLeak-Proof?
Darpa’s Star Hacker Looks to WikiLeak-Proof Pentagon -- The Danger Room
Tomorrow’s WikiLeakers may have to be sneakier than just dumping military docs onto a Lady Gaga disc. The futurists at Darpa are working on a project that would make it harder for troops to funnel classified material to WikiLeaks — or to foreign governments. And that means if you work for the military, get ready to have your web, email and other network usage monitored even more than it is now.
Read more ....
My Comment: Call me skeptical, but unless the Pentagon decides to develop and construct their own independent internet .... hackers and groups like Wikileaks will always be a problem.
Early Man And Cannibalism
Early Man 'Butchered And Ate The Brains Of Children As Part Of Everyday Diet' -- The Daily Mail
Early cavemen in Europe ate human meat as part of their everyday diet, new research suggests.
A new study of fossil bones in Spain shows that cannibalism was a normal part of daily life around 800,000 years ago among Europe’s first humans.
Bones from the cave, called Gran Dolina, show signs of cuts and other marks which will have been made by early stone tools.
Read more ....
My Comment: Hmmmm ... brains ....
Scheme To 'Pull Electricity From The Air' Sparks Debate
From The BBC:
Tiny charges gathered directly from humid air could be harnessed to generate electricity, researchers say.
Dr Fernando Galembeck told the American Chemical Society meeting in Boston that the technique exploited a little-known atmospheric effect.
Tests had shown that metals could be used to gather the charges, he said, opening up a potential energy source in humid climates.
However, experts disagree about the mechanism and the scale of the effect.
Read more ....
My Comment: In a time of impending energy shortages (and high cost) .... I would not hesitate to look for alternatives.
Does Langage Influence Culture?
New cognitive research suggests that language profoundly influences the way people see the world; a different sense of blame in Japanese and Spanish.
Do the languages we speak shape the way we think? Do they merely express thoughts, or do the structures in languages (without our knowledge or consent) shape the very thoughts we wish to express?
Take "Humpty Dumpty sat on a..." Even this snippet of a nursery rhyme reveals how much languages can differ from one another. In English, we have to mark the verb for tense; in this case, we say "sat" rather than "sit." In Indonesian you need not (in fact, you can't) change the verb to mark tense.
Read more ....
Silicon Valley’s Dark Secret: It’s All About Age
From Tech Crunch:
An interesting paradox in the technology world is that there is both a shortage and a surplus of engineers in the United States. Talk to those working at any Silicon Valley company, and they will tell you how hard it is to find qualified talent. But listen to the heart-wrenching stories of unemployed engineers, and you will realize that there are tens of thousands who can’t get jobs. What gives?
The harsh reality is that in the tech world, companies prefer to hire young, inexperienced, engineers.
Read more ....
My Comment: Sadly this is true. At 50 .... I know that I am over the hill. But at least I saved for this day when .... sad to say .... I become obsolete.
An interesting paradox in the technology world is that there is both a shortage and a surplus of engineers in the United States. Talk to those working at any Silicon Valley company, and they will tell you how hard it is to find qualified talent. But listen to the heart-wrenching stories of unemployed engineers, and you will realize that there are tens of thousands who can’t get jobs. What gives?
The harsh reality is that in the tech world, companies prefer to hire young, inexperienced, engineers.
Read more ....
My Comment: Sadly this is true. At 50 .... I know that I am over the hill. But at least I saved for this day when .... sad to say .... I become obsolete.
Use Microsoft Surface to Control a Swarm of Robots With Your Fingertips
From Popular Science:
A sharp-looking tabletop touchscreen can be used to command robots and combine data from various sources, potentially improving military planning, disaster response and search-and-rescue operations.
Read more ....
Ye Cannae Change The Laws Of Physics. Or Can You?
From The Economist:
RICHARD FEYNMAN, Nobel laureate and physicist extraordinaire, called it a “magic number” and its value “one of the greatest damn mysteries of physics”. The number he was referring to, which goes by the symbol alpha and the rather more long-winded name of the fine-structure constant, is magic indeed. If it were a mere 4% bigger or smaller than it is, stars would not be able to sustain the nuclear reactions that synthesise carbon and oxygen. One consequence would be that squishy, carbon-based life would not exist.
Read more ....
First Clear Evidence Of Organized Feasting By Early Humans
From Science Daily:
ScienceDaily (Aug. 30, 2010) — Community feasting is one of the most universal and important social behaviors found among humans. Now, scientists have found the earliest clear evidence of organized feasting, from a burial site dated about 12,000 years ago. These remains represent the first archaeological verification that human feasting began before the advent of agriculture.
Read more ....
My Comment: I guess this tells us that the 'family get together' has been with us since the beginning of time.
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