196383
submission
brownsteve writes:
Eastman Kodak Co. unveiled what it says are "next-generation color filter patterns" designed to more than double the light sensitivity of CMOS or CCD image sensors used in camera phones or digital still cameras. The new color filter system is a departure from the widely used standard Bayer pattern — an arrangement of red, green and blue pixels — also created by Kodak. While building on the Bayer pattern, the new technology adds a "fourth pixel, which has no pigment on top," said Michael DeLuca, market segment manager responsible for image sensor solutions at Eastman Kodak. Such "transparent" pixels — sensitive to all visible wavelengths — are designed to absorb light. DeLuca claimed the invention is "the next milestone" in digital photography, likening its significance to ISO 400 color film introduced in the mid-1980's.
194243
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XorNand writes
"Television's Mr. Wizard, Don Herbert, died today at 89. He introduced generations of young viewers to the joys of science. Herbert, who had bone cancer, died at his suburban Bell Canyon home near Los Angeles."
191477
story
Light Licker writes
"Israeli researchers have created artificial memories for the first time — in a tangle of neurons growing in the lab. Using a specific chemical they could add to the pattern of impulses in a network of the nerve cells. 'Many believe that complex patterns of neuronal firing are templates for memory, which the brain uses when storing information. Imprinting such "memories" on artificial neural networks provides a potential way to develop cyborg chips, says Ben-Jacob. These would be useful for monitoring biological systems like the brain and blood since, being human, they would respond to the same chemicals.' The new pattern lasted two days — good enough for biological RAM?"
191473
story
Teksty Piosenek writes
"Artists and record bosses believe that the best album is the loudest one. Sound levels are being artificially enhanced so that the music punches through when it competes against background noise in pubs or cars. 'Geoff Emerick, engineer on the Beatles' Sgt. Pepper album, said: "A lot of what is released today is basically a scrunched-up mess. Whole layers of sound are missing. It is because record companies don't trust the listener to decide themselves if they want to turn the volume up." Downloading has exacerbated the effect. Songs are compressed once again into digital files before being sold on iTunes and similar sites. The reduction in quality is so marked that EMI has introduced higher-quality digital tracks, albeit at a premium price, in response to consumer demand.'"
191427
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forkazoo writes
"Space.com is reporting the successful launch of the space shuttle Atlantis. There were no major incidents or problems during the launch, except that there was some concern about the weather at the two European abort landing sites. The weather cleared up and the launch was pretty much perfect. 'Preliminary analysis of images taken by onboard cameras revealed expected "popcorning" foam loss during ascent but none that appeared to strike the orbiter. NASA has kept a close watch on the shedding of fuel tank foam insulation during shuttle launches since the 2003 Columbia accident, which claimed the lives of seven astronauts, and made modifications to reduce the amount of debris shed during liftoffs.' The launch was broadcast live NASA TV stream."
191079
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gollum123 writes
"A major advance in the genetic understanding behind several of the world's most common diseases is being reported by the BBC. A study tested some 17,000 people to find genetic markers for the various diseases. 'They found new genetic variants for depression, Crohn's disease, coronary heart disease, hypertension, rheumatoid arthritis and type 1 and 2 diabetes. The Wellcome Trust Case Control Consortium (WTCCC) involved 50 leading research groups analyzing the DNA from 2,000 patients for each of the seven conditions and 3,000 healthy volunteers. One of the most exciting finds was a previously unknown gene common to type 1 diabetes and Crohn's disease, a type of inflammatory bowel disorder, suggesting that they share similar biological pathways.' There is also disease by disease data at the BBC."
190879
submission
LinucksGirl writes:
The Linux kernel is the core of a large and complex operating system, and while it's huge, it is well organized in terms of subsystems and layers. In this article, you explore the general structure of the Linux kernel and get to know its major subsystems and core interfaces.
188795
submission
CFTM writes:
The New York Times is running an interesting article about how human memory works and the theorized adaptive nature of "forgetfulness". Here's the opening two paragraphs from the article, "Whether drawing a mental blank on a new A.T.M. password, a favorite recipe or an old boyfriend, people have ample opportunity every day to curse their own forgetfulness. But forgetting is also a blessing, and researchers reported on Sunday that the ability to block certain memories reduces the demands on the brain when it is trying to recall something important. The study, appearing in the journal Nature Neuroscience, is the first to record visual images of people's brains as they suppress distracting memories. The more efficiently that study participants were tuning out irrelevant words during a word-memorization test, the sharper the drop in activity in areas of their brains involved in recollection. Accurate remembering became easier, in terms of the energy required."
