bilimselkonular science
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by mokosam on December 13, 2008
A revolutionary container-less chemical reactor, pioneered by the space research team at Guigné International Ltd (GIL) in Canada with scientists at the University of Bath, has been installed on the International Space Station. The reactor, named Space-DRUMS, uses beams of sound to position chemicals in mid-air so they don’t come into contact with the walls [...]
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by mokosam on December 13, 2008
Researchers have captured for the first time a geological event considered key in shaping the Earth`s landscape. An international research team led by Eric Calais, a Purdue University professor of geophysics, was able to measure ground displacements as two tectonic plates in Africa moved apart and molten rock pushed its way toward the surface during [...]
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by mokosam on December 11, 2008
Researchers at MIT recently found an elegant solution to a sticky scientific problem in basic fluid mechanics: why water doesn`t soak into soil at an even rate, but instead forms what look like fingers of fluid flowing downward.
Scientists call these rivulets "gravity fingers," and the explanation for their formation has to do with the surface [...]
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by mokosam on December 11, 2008
A precious metal which has never before been used in a clinical setting is being developed as an anti-cancer agent by University of Warwick researchers.
The metal, osmium, is closely related to platinum, which is widely used to treat cancers in the form of the drug cisplatin. Most famously, the cyclist Lance Armstrong was treated with [...]
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by mokosam on December 11, 2008
Why are certain videos on YouTube watched millions of times while 90 percent of the contributions find only the odd viewer? A new study reveals that increased attention in social systems like the YouTube community follows particular, recurrent patterns that can be represented using mathematical models.
The Internet platform YouTube is a stomping ground for scientists [...]
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by mokosam on December 11, 2008
Seismic waves generated by earthquakes pass through the earth. Changes in their direction or velocity indicate variations in the materials through which they pass. ETH Zurich geophysicists have now been able to show in a model exactly what happens at zones where crustal plates subduct below one another.
As a rule, oceanic crust is subducted under [...]
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by mokosam on December 11, 2008
In the summer of 1968, Dave Kavanaugh set off on a hike that would change the course of his life. As a second-year medical student at the University of Colorado, he had joined a climbing club with a few members of the biophysics department, and the group had set their sights on Gray`s Peak—the ninth [...]
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by mokosam on December 11, 2008
It`s 40 degrees F below zero (with the wind chill) at the South Pole today. Yet a research team from the University of Delaware is taking it all in stride.
The physicists, engineers and technicians from the University of Delaware`s Bartol Research Institute are part of an international team working to build the world`s largest neutrino [...]
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by mokosam on December 10, 2008
By watching the motions of 28 stars orbiting the Milky Way`s most central region with admirable patience and amazing precision, astronomers have been able to study the supermassive black hole lurking there. It is known as "Sagittarius A*" (pronounced "Sagittarius A star"). The new research marks the first time that the orbits of so many [...]
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by mokosam on December 10, 2008
The world`s most precise clock – on which all time-keeping and navigation systems are based – might be made as small as a wristwatch with a new design proposed by an international team of physicists.
Cesium atomic clocks are presently used to define the basic unit of time – the second – to co-ordinate and synchronise [...]
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