ScienceDaily Technology Headlines
for Saturday, October 23, 2010
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New cometary phenomenon greets approaching spacecraft (October 22, 2010) -- Recent observations of comet Hartley 2 have scientists scratching their heads, while they anticipate a flyby of the small, icy world on Nov. 4. A phenomenon was recorded by imagers aboard NASA's Deep Impact spacecraft from Sept. 9 to 17 during pre-planned scientific observations of the comet. These observations, when coupled with expected images during the closest encounter with Hartley 2 on Nov. 4, will become the most detailed look yet at a comet's activity during its pass through the inner-solar system. ... > full story
Value-added sulfur scrubbing: Converting acid rain chemicals into useful products (October 22, 2010) -- Power plants that burn fossil fuels remain the main source of electricity generation across the globe. Modern power plants have scrubbers to remove sulfur compounds from their flue gases, which has helped reduce the problem of acid rain. Now, researchers in India have devised a way to convert the waste material produced by the scrubbing process into value-added products. ... > full story
Space telescopes reveal previously unknown brilliant X-ray explosion in Milky Way galaxy (October 22, 2010) -- Astronomers in Japan, using an X-ray detector on the International Space Station, and in the United States, using NASA's Swift space observatory, are announcing the discovery of an object newly emitting X-rays, which previously had been hidden inside our Milky Way galaxy in the constellation Centaurus. ... > full story
Researchers break speed barrier in solving important class of linear systems (October 22, 2010) -- Computer scientists have devised an innovative and elegantly concise algorithm that can efficiently solve systems of linear equations that are critical to such important computer applications as image processing, logistics and scheduling problems, and recommendation systems. ... > full story
Towards better explosives detectors (October 22, 2010) -- Over the past decade, a team of scientists in Maryland have been working to stop the threat of terrorist-based attacks in the form of explosives or explosive-based devices, by providing a sound measurement and standard infrastructure. ... > full story
Lunar 'permafrost': Evidence for widespread water ice on the moon (October 22, 2010) -- Scientists from NASA's Diviner Lunar Radiometer Experiment team have detected the widespread presence of water ice in large areas of the moon's south pole. This lunar 'permafrost' is analogous to the high-latitude terrain found on the Earth and on Mars, where subfreezing temperatures persist below the surface throughout the year, scientists say. ... > full story
Spotting suspicious moles (October 22, 2010) -- Most of the spots on our skin are perfectly harmless moles, collections of cells called melanocytes. But occasionally, these melanocytes turn cancerous, creating the potentially deadly skin tumor melanoma. Scientists have now developed a new technique that aims to help doctors distinguish melanomas from harmless moles using high-resolution snapshots of suspicious spots. ... > full story
Forensic metal fingerprinting: Simple, handheld device which can measure corrosion on machine parts (October 22, 2010) -- Groundbreaking research into fingerprint detection now has an industrial application, thanks to a new invention by the scientist who developed the technique. Dr John Bond's method of identifying fingerprints on brass bullet-casings, even after they have been wiped clean, was based on the minuscule amounts of corrosion which can be caused by sweat. Now, Dr. Bond has applied the same technique to industry by developing a simple, handheld device which can measure corrosion on machine parts. ... > full story
Taking a closer look at plaque (October 22, 2010) -- Scientists are using the technique of Raman spectroscopy to study two common dental plaque bacteria, Streptococcus sanguis and mutans. The relative balance of the two may be an indicator of a patient's oral health and risk for tooth decay -- Streptococcus sanguis is associated with "healthy" plaque, while mutans is associated with tooth decay. ... > full story
World's smallest on-chip low-pass filter developed (October 22, 2010) -- A research team from Singapore has successfully designed the world's smallest on-chip low-pass filter which is 1,000 times smaller than existing off-chip filters. ... > full story
Light on silicon better than copper? (October 22, 2010) -- As good as copper has been in zipping information from one circuit to another on silicon inside computers and other electronic devices, optical signals can carry much more, according to electrical engineers. So the engineers have designed and demonstrated microscopically small lasers integrated with thin film-light guides on silicon that could replace the copper in a host of electronic products. ... > full story
Real-time imaging of stroke models (October 22, 2010) -- One of the major impediments to understanding how brain cells die during a stroke and identifying new ways to protect them has been the long-standing inability to image strokes, or "ischemic events" in living tissue. Now researchers have developed methods to induce strokes in animal models and image the events as they unfold. ... > full story
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