Τρίτη 23 Ιουλίου 2013

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


NASA releases images of Earth by two interplanetary spacecraft

Posted: 22 Jul 2013 02:28 PM PDT

Color and black-and-white images of Earth taken by two NASA interplanetary spacecraft on July 19 show our planet and its moon as bright beacons from millions of miles away in space. NASA's Cassini spacecraft captured the color images of Earth and the moon from its perch in the Saturn system nearly 900 million miles (1.5 billion kilometers) away. MESSENGER, the first probe to orbit Mercury, took a black-and-white image from a distance of 61 million miles (98 million kilometers) as part of a campaign to search for natural satellites of the planet.

Chemical reaction could streamline manufacture of pharmaceuticals and other compounds

Posted: 22 Jul 2013 12:27 PM PDT

Researchers have discovered a new chemical reaction that has the potential to lower the cost and streamline the manufacture of compounds ranging from agricultural chemicals to pharmaceutical drugs. The reaction resolves a long-standing challenge in organic chemistry in creating phenolic compounds from aromatic hydrocarbons quickly and cheaply.

Microchips that mimic the brain: Novel microchips imitate the brain's information processing in real time

Posted: 22 Jul 2013 12:27 PM PDT

Neuroinformatics researchers have demonstrated how complex cognitive abilities can be incorporated into electronic systems made with so-called neuromorphic chips: They show how to assemble and configure these electronic systems to function in a way similar to an actual brain.

Off-grid sterilization with 'solar steam'

Posted: 22 Jul 2013 11:15 AM PDT

Nanotechnology researchers have unveiled a solar-powered sterilization system that could be a boon for more than 2.5 billion people who lack adequate sanitation. The "solar steam" sterilization system uses nanomaterials to convert as much as 80 percent of the energy in sunlight into germ-killing heat.

Could HYCCUPS boost phone battery life?

Posted: 22 Jul 2013 09:30 AM PDT

A new system that goes by the name of "hybrid contextual cloud in ubiquitous platforms comprising of smart phones" or HYCCUPS for short, has been developed by computer scientists. The system boosts phone battery life by booting power-consuming computational tasks on to an on-the-fly ad-hoc cloud in which smart phones are both clients and computing resources.

Two-in-one solution for low cost polymer LEDs and solar cells

Posted: 22 Jul 2013 08:14 AM PDT

Scientists have just made a considerable improvement in device performance of polymer-based optoelectronic devices. The new plasmonic material, can be applied to both polymer light-emitting diodes and polymer solar cells, with world-record high performance, through a simple and cheap process.

A new method for clicking molecules together

Posted: 22 Jul 2013 08:14 AM PDT

Scientists have developed a quick and simple method for connecting and assembling new molecules together, paving a new road for synthetic chemistry, material science, chemical biology, and even drug discovery.

Scientific experiment creates a wave frozen in time

Posted: 22 Jul 2013 07:56 AM PDT

Scientists have created, in a laboratory, a static pipeline wave, with a crest that moves neither forward nor backward. This research will allow improvement in boat and seaport designs and will enable analysis of how carbon dioxide exchange between the ocean and the atmosphere occurs.

Move like an octopus: Underwater propulsion from a 3-D printer

Posted: 22 Jul 2013 07:55 AM PDT

Octopods, which are also known as octopuses or squid, generally move along the ocean floor with their eight arms, they flee by swimming head-first, in line with the principles of propulsion. When the mollusk does this, water is taken into its mantle, which is then closed by contracting sphincter muscles. The water is then squirted back out at a high pressure through a funnel. The resulting propulsion pushes the octopus forward in the opposite direction. By changing the position of the funnel, the octopus can precisely steer its direction of travel. For researchers this intelligent propulsion principle served as a role model for the development of an underwater propulsion system.

Bringing color to solar panels

Posted: 22 Jul 2013 07:55 AM PDT

Covering a roof or a façade with standard solar cells to generate electricity will change a building's original appearance – and not always for the better. At present only dark solar panels are widely available on the market.

Thin, flexible glass for energy storage

Posted: 22 Jul 2013 07:35 AM PDT

A new use for glass could make future hybrid-electric and plug-in electric vehicles more affordable and reliable.

Magnets make droplets dance: Reversible switching between static and dynamic self-assembly

Posted: 22 Jul 2013 04:19 AM PDT

Researchers have placed water droplets containing magnetic nanoparticles on strong water repellent surfaces and have made them align in various static and dynamic structures using periodically oscillating magnetic fields. This is the first time researchers have demonstrated reversible switching between static and dynamic self-assembly.

New Large Hadron Collider discovery: Measurement of predicted particle decay with implications for dark matter search

Posted: 19 Jul 2013 10:59 AM PDT

Scientists have now observed B-sub-s meson decay as predicted by the Standard Model of Particle Physics. The discovery at the Large Hadron Collider will impact scientists' search for dark matter in the universe.

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