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Thursday, September 13, 2012

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Mars Rover Curiosity Arm Tests Nearly Complete

Posted: 12 Sep 2012 04:12 PM PDT

NASA's Mars Curiosity team has almost finished robotic arm tests in preparation for the rover to touch and examine its first Martian rock.

Hard coating extends the life of new ultrahigh-density storage device

Posted: 12 Sep 2012 06:32 AM PDT

Probe storage devices read and write data by making nanoscale marks on a surface through physical contact. The technology may one day extend the data density limits of conventional magnetic and optical storage, but current probes have limited lifespans due to mechanical wear. A research team has now developed a long-lasting ultrahigh-density probe storage device by coating the tips of the probes with a thin metal film.

Cells surf through a microfluidic chip on fluid streamlines created by an oscillating plate

Posted: 12 Sep 2012 06:32 AM PDT

Scientists who study tissue engineering and test new drugs often need to sort, rotate, move, and otherwise manipulate individual cells. They can do this by prodding the cells into place with a mechanical probe or coaxing them in the desired direction with acoustic waves, electric fields, or flowing fluids. Techniques that rely on direct physical contact can position individual cells with a high level of precision while non-contact techniques are often faster for sorting large numbers of cells. An international team of researchers has now developed a way to manipulate cells that combines some of the benefits of both contact and non-contact methods.

A celestial witch’s broom? A new view of the Pencil Nebula

Posted: 12 Sep 2012 05:48 AM PDT

The Pencil Nebula is pictured in a new image from ESO's La Silla Observatory in Chile. This peculiar cloud of glowing gas is part of a huge ring of wreckage left over after a supernova explosion that took place about 11,000 years ago.

Dark energy is real, say astronomers

Posted: 12 Sep 2012 05:47 AM PDT

Dark energy, a mysterious substance thought to be speeding up the expansion of the Universe is really there, according to a team of astronomers. After a two-year study, scientists conclude that the likelihood of its existence stands at 99.996 per cent.

Predicting a die throw

Posted: 12 Sep 2012 05:35 AM PDT

By combining chaos theory and high school level mechanics, scientists reveal that the random probability of a die throw can be determined and predicted, if you precisely understand the initial conditions.

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