ScienceDaily: Top Technology News

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• Nanoparticles reboot blood flow in brain
• More exoplanets discovered: 41 new transiting planets in Kepler field of view
• Novel technique to synthesize nanocrystals that harvest solar energy
• Sensor detects glucose in saliva and tears for diabetes testing
• How to feed data-hungry mobile devices? Use more antennas
• Supernovae of the same brightness, cut from vastly different cosmic cloth
• Engineers achieve longstanding goal of stable nanocrystalline metals
• Mini-camera with maxi-brainpower
• One-molecule-thick material has big advantages
• Scientists produce hydrogen for fuel cells using an inexpensive catalyst under real-world conditions
• Spacetime: A smoother brew than we knew
• Shaking the electron has strengthened quantum mechanics
• New era in camouflage makeup: Shielding soldiers from searing heat of bomb blasts

Nanoparticles reboot blood flow in brain Posted: 23 Aug 2012 01:19 PM PDT Nanoparticles show promise in restoring blood flow to the brain when administered soon after a traumatic brain or other injury.

More exoplanets discovered: 41 new transiting planets in Kepler field of view Posted: 23 Aug 2012 12:04 PM PDT Two newly submitted studies verify 41 new transiting planets in 20 star systems. These results may increase the number of Kepler's confirmed planets by more than 50 percent: to 116 planets hosted in 67 systems, over half of which contain more than one planet.

Novel technique to synthesize nanocrystals that harvest solar energy Posted: 23 Aug 2012 11:38 AM PDT A new video protocol focuses on the liquid phase synthesis of two nanocrystals that produce hydrogen gas or an electric charge when exposed to light.

Sensor detects glucose in saliva and tears for diabetes testing Posted: 23 Aug 2012 11:37 AM PDT Researchers have created a new type of biosensor that can detect minute concentrations of glucose in saliva, tears and urine and might be manufactured at low cost because it does not require many processing steps to produce.

How to feed data-hungry mobile devices? Use more antennas Posted: 23 Aug 2012 11:37 AM PDT Researchers have just unveiled Argos, a new multi-antenna technology that could help wireless providers keep pace with the voracious demands of data-hungry smartphones and tablets. Argos aims to dramatically increase network capacity by allowing cell towers to simultaneously beam signals to more than a dozen customers on the same frequency.

Supernovae of the same brightness, cut from vastly different cosmic cloth Posted: 23 Aug 2012 11:30 AM PDT Astronomers have presented the first-ever direct observations of a Type 1a supernova progenitor system. Astronomers have collected evidence indicating that the progenitor system of a Type 1a supernova contains a red giant star. They also show that the system previously underwent at least one much smaller nova eruption before it ended its life in a destructive supernova. By comparison, indirect observations of another Type 1a supernova progenitor system showed no evidence of a red giant star. Taken together, these observations unequivocally show that just because Type 1a supernovae look the same, that doesn't mean they are all born the same way.

Engineers achieve longstanding goal of stable nanocrystalline metals Posted: 23 Aug 2012 11:30 AM PDT Most metals -- from the steel used to build bridges and skyscrapers to the copper and gold used to form wires in microchips -- are made of crystals: orderly arrays of molecules forming a perfectly repeating pattern. In many cases, the material is made of tiny crystals packed closely together, rather than one large crystal. The crystals tend to merge and grow larger if subjected to heat or stress. Now, researchers have found a way to avoid that problem. They've designed and made alloys that form extremely tiny grains -- called nanocrystals -- that are only a few billionths of a meter across.

Mini-camera with maxi-brainpower Posted: 23 Aug 2012 11:29 AM PDT Torrential rapids, plunging mud holes and soaring hurdles: in the outdoor competitions at the Olympic Games, athletes pushed themselves to the limit. But it's hard to depict this in pictures alone. This is why researchers created an intelligent camera that instantly delivers additional metadata, such as acceleration, temperature or heart rate.

One-molecule-thick material has big advantages Posted: 23 Aug 2012 08:29 AM PDT New research suggests that a whole family of two-dimensional materials may open up possibilities for applications that could change many aspects of modern life.

Scientists produce hydrogen for fuel cells using an inexpensive catalyst under real-world conditions Posted: 23 Aug 2012 08:29 AM PDT Scientists have produced hydrogen, a renewable energy source, from water using an inexpensive catalyst under industrially relevant conditions (using pH neutral water, surrounded by atmospheric oxygen, and at room temperature).

Spacetime: A smoother brew than we knew Posted: 23 Aug 2012 08:15 AM PDT Spacetime may be less like beer and more like sipping whiskey. Or so an intergalactic photo finish would suggest. Physicists reached this heady conclusion after studying the tracings of three photons of differing wavelengths that were recorded by NASA's Fermi Gamma-ray Space Telescope in May 2009. Photons from a gamma-ray burst jetted 7 billion light years across the universe and arrived at Earth in a dead heat, calling into question just how foamy the universe may be.

Shaking the electron has strengthened quantum mechanics Posted: 23 Aug 2012 06:09 AM PDT Atomic orbital electrons react to change of nucleus electric charge following each beta decay and to flying nearby particles emitted from the nucleus. Physicists have simulated such processes for 6He nuclei. Theoretical calculations were recently confirmed.

New era in camouflage makeup: Shielding soldiers from searing heat of bomb blasts Posted: 22 Aug 2012 06:15 AM PDT Camouflage face make-up for warfare is undergoing one of the most fundamental changes in thousands of years, as scientists have described a new face paint that both hides soldiers from the enemy and shields their faces from the searing heat of bomb blasts. Firefighters also could benefit from the new heat-resistant makeup.

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