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Friday, July 19, 2013

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Facebook for molecules

Posted: 18 Jul 2013 01:13 PM PDT

Social media has expanded to reach an unlikely new target: molecules. Scientists have created networks of molecular data similar to Facebook's recently debuted graph search feature.

Unusual material expands dramatically under pressure

Posted: 18 Jul 2013 01:13 PM PDT

If you squeeze a normal object in all directions, it shrinks in all directions. But a few strange materials will actually grow in one dimension when compressed. Chemists have now discovered a structure that takes this property to a new level, expanding more dramatically under pressure than any other known material.

How Mars' atmosphere got so thin: Reports detail Curiosity clues to atmosphere's past

Posted: 18 Jul 2013 11:30 AM PDT

A pair of new papers report measurements of the Martian atmosphere's composition by NASA's Curiosity rover, providing evidence about loss of much of Mars' original atmosphere.

Graphene 'onion rings' have delicious potential

Posted: 18 Jul 2013 11:30 AM PDT

Hexagonal graphene "onion rings" are the product of growing two-dimensional carbon in a high-pressure, hydrogen-rich environment.

Snow in an infant solar system: A frosty landmark for planet and comet formation

Posted: 18 Jul 2013 11:27 AM PDT

A snow line has been imaged in a far-off infant solar system for the very first time. The snow line, located in the disc around the Sun-like star TW Hydrae, promises to tell us more about the formation of planets and comets, the factors that decide their composition, and the history of the Solar System.

Computer system automatically generates TCP congestion-control algorithms

Posted: 18 Jul 2013 10:07 AM PDT

Computer-designed algorithms for controlling network congestion yield transmission rates two to three times as high as those designed by humans.

Hubble shows link between stars' ages and their orbits in dense cluster

Posted: 18 Jul 2013 10:06 AM PDT

Astronomers using NASA's Hubble Space Telescope have determined the orbital motion of two distinct populations of stars in an ancient globular star cluster, offering proof they formed at different times and providing a rare look back into the Milky Way galaxy's early days.

Scientists break record for thinnest light-absorber: May lead to more efficient, cheaper solar cells

Posted: 18 Jul 2013 08:15 AM PDT

Scientists have built the thinnest, most efficient absorber of visible light on record, a nanosize structure that could lead to less-costly, more efficient, solar cells.

Slow bow shock ahead of the sun's heliosphere predicted

Posted: 18 Jul 2013 08:13 AM PDT

A new study indicates that a bow shock (a dynamic boundary between sun's heliosphere and the interstellar medium) is highly likely. These findings challenge recent predictions that no such bow shock would be encountered.

Evaporation: Tiny temperature differences are primary driving force in droplet evaporation

Posted: 18 Jul 2013 07:10 AM PDT

Evaporation is so common that everybody thinks it's a well understood phenomenon. Appearances can be, however, deceptive. Recently, a new, earlier not predicted mechanism of evaporation was discovered. Experiments and simulations not only confirm its existence, but also indicate that it plays the crucial role in evaporation process in the nanoscale.

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