Sabtu, 21 Agustus 2010

ScienceDaily Technology Headlines

for Saturday, August 21, 2010

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Nanoscale inhomogeneities in superconductors explained (August 20, 2010) -- Superconducting materials, which transmit power resistance-free, are found to perform optimally when high- and low-charge density varies on the nanoscale level, according to new research. ... > full story

Galactic 'super-volcano' in action (August 20, 2010) -- A galactic "super-volcano" in the massive galaxy M87 is erupting and blasting gas outwards. The cosmic volcano is being driven by a giant black hole in the galaxy's center and preventing hundreds of millions of new stars from forming. ... > full story

Widespread floating plastic debris found in the western North Atlantic Ocean (August 20, 2010) -- Despite growing awareness of the problem of plastic pollution in the world's oceans, little solid scientific information existed to illustrate the nature and scope of the issue. Now, a team of researchers has published a study of plastic marine debris based on data collected over 22 years by undergraduate students. ... > full story

Input-output trade-offs found in human information processing (August 20, 2010) -- A new study examines information processing and finds that human behavior is systematic, not random, demonstrating a trade-off between input and out. The study also points to limitations to information processing. These exchanges are pretty much equal and opposite, much like the laws of the conservation of momentum and energy, according to the study. ... > full story

NASA's Lunar Reconnaissance Orbiter reveals 'incredible shrinking moon' (August 20, 2010) -- Newly discovered cliffs in the lunar crust indicate the moon shrank globally in the geologically recent past and might still be shrinking today, according to a team analyzing new images from NASA's Lunar Reconnaissance Orbiter spacecraft. The results provide important clues to the moon's recent geologic and tectonic evolution. ... > full story

Scientist IDs genes that promise to make biofuel production more efficient, economical (August 20, 2010) -- Metabolic engineers have taken the first step toward the more efficient and economical production of biofuels by developing a strain of yeast with increased alcohol tolerance. Overexpression of a particular gene increased ethanol volume by more than 70 percent and ethanol tolerance by more than 340 percent compared to the control strain. ... > full story

Astronomers use galactic magnifying lens to probe elusive dark energy (August 19, 2010) -- An international team of astronomers using gravitational lensing observations from the NASA/ESA Hubble Space Telescope has taken an important step forward in the quest to solve the riddle of dark energy, a phenomenon which mysteriously appears to power the universe's accelerating expansion. ... > full story

How much mass makes a black hole? Astronomers challenge current theories (August 19, 2010) -- Astronomers have for the first time demonstrated that a magnetar -- an unusual type of neutron star -- was formed from a star with at least 40 times as much mass as the Sun. The result presents great challenges to current theories of how stars evolve, as a star as massive as this was expected to become a black hole, not a magnetar. This now raises a fundamental question: just how massive does a star really have to be to become a black hole? ... > full story

Brightness on fluorescent probes used to monitor biological activities of individual proteins increased (August 19, 2010) -- Researchers are turning up the brightness on a group of fluorescent probes that are used to monitor biological activities of individual proteins in real-time. This latest advance enhances their fluormodule technology causing it to glow an order of magnitude brighter than typical fluorescent proteins and five- to seven-times brighter than enhanced green fluorescent protein. ... > full story

Internet access at home increases the likelihood that adults will be in relationships, study finds (August 19, 2010) -- Adults who have Internet access at home are much more likely to be in romantic relationships than adults without Internet access, according to new research. ... > full story

Extreme darkness: Carbon nanotube forest covers ultra-dark detector (August 19, 2010) -- Harnessing darkness for practical use, researchers have developed a laser power detector coated with the world's darkest material -- a forest of carbon nanotubes that reflects almost no light across the visible and part of the infrared spectrum. ... > full story

New computer model advances climate change research (August 19, 2010) -- Scientists can now study climate change in far more detail with powerful new computer software released by the National Center for Atmospheric Research. The Community Earth System Model will be one of the primary climate models used for the next assessment by the Intergovernmental Panel on Climate Change. ... > full story


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