ScienceDaily Technology Headlines
for Sunday, December 27, 2009
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Vampires and collisions rejuvenate stars (December 26, 2009) -- Using the NASA/ESA Hubble Space Telescope, astronomers have uncovered two distinct kinds of "rejuvenated" stars in the globular cluster Messier 30. A new study shows that both stellar collisions and a process sometimes called vampirism are behind this cosmic "face lift." The scientists also uncover evidence that both sorts of blue stragglers were produced during a critical dynamical event (known as "core collapse") that occurred in Messier 30 a few billion years ago. ... > full story
Magnetic field measurements of the human heart at room temperature (December 26, 2009) -- A new optical sensor was successfully tested in the "magnetically best shielded room on Earth." The sensor does not need advanced cooling and is very small. Its suitability was proven for biomagnetic measurements in the picotesla range. So, magnetocardiographic measurement devices -- to be used as a supplement or an alternative to the ECG -- could become simpler and less expensive. ... > full story
New warning system warns of driver drowsiness and distraction (December 26, 2009) -- Scientists have developed the latest version of a driving assistance system which controls the driver's attention level and helps to avoid accidents caused by drowsiness or distractions at the wheel. ... > full story
Low-cost temperature sensors: Tennis balls to monitor mountain snowpack (December 26, 2009) -- Dime-sized temperature sensors, first built for the refrigerated food industry, have been adapted to sense mountain microclimates. ... > full story
Weir in space and dimmed sun creates 200-million-mile-long lab bench for turbulence research (December 25, 2009) -- Physicists working in space plasmas have made clever use of the Ulysses spacecraft and the solar minimum to create a massive virtual lab bench to provide a unique test for the science underlying turbulent flows. ... > full story
Do computers understand art? (December 25, 2009) -- Mathematical algorithms can provide clues about the artistic style of a painting. The composition of colors or certain aesthetic measurements can already be quantified by a computer, but machines are still far from being able to interpret art in the way that people do. ... > full story
Method makes refineries more efficient (December 25, 2009) -- Refineries could trim millions of dollars in energy costs annually by using a new method developed to rearrange the distillation sequence needed to separate crude petroleum into products. ... > full story
Keck telescopes gaze into young star's 'life zone' (December 25, 2009) -- The inner regions of young planet-forming disks offer information about how worlds like Earth form, but not a single telescope in the world can see them. Yet, for the first time, astronomers using the W. M. Keck Observatory in Hawaii have measured the properties of a young solar system at distances closer to the star than Venus is from our sun. ... > full story
Wii Fit may not help families get fit (December 25, 2009) -- The Nintendo Wii Fit many people are considering as Christmas gifts may be great entertainment, but a new study indicates the console has little effect on family fitness. ... > full story
Santa’s sleigh: Researcher explains science of Christmas magic (December 24, 2009) -- Santa skeptics have long considered St. Nick's ability to deliver toys to the world's good girls and boys on Christmas Eve a scientific impossibility. But new research shows that Santa is able to make his appointed rounds through the pioneering use of cutting-edge science and technology. ... > full story
Cassini Holiday Movies Showcase Dance of Saturn's Moons (December 24, 2009) -- Like sugar plum fairies in "The Nutcracker," the moons of Saturn performed a celestial ballet before the eyes of NASA's Cassini spacecraft. New movies frame the moons' silent dance against the majestic sweep of the planet's rings and show as many as four moons gliding around one another. ... > full story
Herschel Space Telescope uncovers sources of cosmic infrared background (December 24, 2009) -- A weak cosmic infrared radiation field that reaches Earth from all directions contains not yet deciphered messages about the evolution of galaxies. Using first observations with the PACS Instrument on board ESA’s Herschel Space Telescope, scientists have for the first time resolved more than half of this radiation into its constituting sources. Observations with Herschel open the road towards understanding the properties of these galaxies, and trace the dusty side of galaxy evolution. ... > full story
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