Σάββατο, 7 Ιουνίου 2014

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Exotic particle: Exotic bound states comprising more than three quarks confirmed

Posted: 06 Jun 2014 07:20 AM PDT

For decades, physicists have searched in vain for exotic bound states comprising more than three quarks. Experiments have now shown that, in fact, such complex particles do exist in nature. The measurements confirm first results from 2011 for the existence of an exotic dibaryon made up of six quarks.

Dutch student team build 40 meter ice basilica in Finland in three weeks

Posted: 06 Jun 2014 07:19 AM PDT

Last year students built the world's biggest ice dome, with a diameter of 30 meters, in Finland. At the end of this year another team intend to travel to the frozen north to take on an even bigger challenge. They are going to build a church of ice, based on the Sagrada Familia, from pykrete – ice reinforced with wood fibers. And they aim to complete the almost 40 meter high model of the famous church in Barcelona (built on a scale of 1:4) in just three weeks.

Electrical control of nuclear spin qubits: Important step towards quantum computers

Posted: 06 Jun 2014 06:14 AM PDT

Researchers have made an important step towards quantum computers. Using a spin cascade in single-molecule magnet, scientists demonstrated how nuclear spins can be manipulated with electric fields. Electric manipulation allows for a quick and specific switching of quantum bits.

Optical invisibility cloak built for diffusive media (like fog or milk)

Posted: 06 Jun 2014 06:14 AM PDT

Real invisibility cloaks are rather complex and work in certain situations only. The laws of physics prevent an optical invisibility cloak from making objects in air invisible for any directions, colors, and polarizations. If the medium is changed, however, it becomes much easier to hide objects. Physicists have now succeeded in manufacturing with relatively simple means and testing an ideal invisibility cloak for diffusive light-scattering media, such as fog or milk.

Long-Sought Molecular Map of Critical Genetic Machinery developed

Posted: 05 Jun 2014 11:00 AM PDT

Advanced electron microscopy techniques have been used to determine the first accurate structural map of Mediator, one of the largest and most complex "molecular machines" in cells. The finding demonstrates how recently developed molecular imaging methods can be applied to characterize large and important protein complexes.

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