ScienceDaily: Top Technology News

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• Discovery of new material state counterintuitive to laws of physics
• Silicon-based nanoparticles could make LEDs cheaper, greener to produce
• New quantum dot technique combines best of optical and electron microscopy
• Mars water-ice clouds are key to odd thermal rhythm
• NASA's Chandra turns up black hole bonanza in galaxy next door
• Breakthrough allows fast, reliable pathogen identification
• Filmmaking magic with polymers
• Network of cameras used to track people in complex indoor settings
• Cameras five times more sensitive to light? An ultrasensitive molybdenum-based image sensor developed
• Nano-thermometer enables first atomic-scale heat transfer measurements
• Luminous bacterial proteins detect chemicals in water
• New kind of variable star discovered: Minute variations in brightness reveal whole new class of stars
• Producing cheaper and more flexible multiple thin crystalline silicon wafers
• Molecular 'sieves' harness ultraviolet irradiation for greener power generation
• Global quantum networks based on optical fibers: Scientists quantum mechanically couple atoms to glass fiber cables
• Sunny super-Earth? Atmosphere of super-Earth exoplanet observed for time first by two Japanese telescopes
• Controlling magnetic clouds in graphene

Discovery of new material state counterintuitive to laws of physics Posted: 12 Jun 2013 07:42 PM PDT When you squeeze something, it gets smaller -- unless you're among a group of scientists who have seemingly defied the laws of physics and found a way to apply pressure to make a material expand instead of compress/contract.

Silicon-based nanoparticles could make LEDs cheaper, greener to produce Posted: 12 Jun 2013 07:41 PM PDT Researchers have created a material they say would make LED bulbs cheaper and greener to manufacture, driving down the price. Their silicon-based nanoparticles soften the blue light emitted by LEDs, creating white light that more closely resembles sunlight.

New quantum dot technique combines best of optical and electron microscopy Posted: 12 Jun 2013 02:33 PM PDT Researchers have developed a new microscopy technique that uses a process similar to how an old tube television produces a picture to image nanoscale features. Combining the best features of optical and scanning electron microscopy, the fast, versatile, and high-resolution technique allows scientists to view surface and subsurface features potentially as small as 10 nanometers in size.

Mars water-ice clouds are key to odd thermal rhythm Posted: 12 Jun 2013 12:58 PM PDT Researchers using NASA's Mars Reconnaissance Orbiter have found that temperatures in the Martian atmosphere regularly rise and fall not just once each day, but twice.

NASA's Chandra turns up black hole bonanza in galaxy next door Posted: 12 Jun 2013 12:40 PM PDT Using data from NASA's Chandra X-ray Observatory, astronomers have discovered an unprecedented bonanza of black holes in the Andromeda Galaxy, one of the nearest galaxies to the Milky Way. Using more than 150 Chandra observations, spread over 13 years, researchers identified 26 black hole candidates, the largest number to date, in a galaxy outside our own. Many consider Andromeda to be a sister galaxy to the Milky Way. The two ultimately will collide, several billion years from now.

Breakthrough allows fast, reliable pathogen identification Posted: 12 Jun 2013 10:33 AM PDT Researchers may have developed a way to quickly and reliably diagnose life-threatening bacterial infections and pinpoint the right antibiotics to clear the infections.

Filmmaking magic with polymers Posted: 12 Jun 2013 10:31 AM PDT Self-assembled copolymer block film is now being fabricated with intricately organized nanostructures, giving them multiple functions and flexibility on a macroscale level never before seen.

Network of cameras used to track people in complex indoor settings Posted: 12 Jun 2013 10:31 AM PDT Researchers have developed a method for tracking the locations of multiple individuals in complex, indoor settings using a network of video cameras, creating something similar to the fictional Marauder's Map used by Harry Potter to track comings and goings at the Hogwarts School. The method was able to automatically follow the movements of 13 people within a nursing home, even though individuals sometimes slipped out of view of the cameras.

Cameras five times more sensitive to light? An ultrasensitive molybdenum-based image sensor developed Posted: 12 Jun 2013 10:31 AM PDT Scientist have built a prototype for an image sensor based on the semi-conducting properties of molybdenite. It could one day result in cameras that are five times more light sensitive than current technology.

Nano-thermometer enables first atomic-scale heat transfer measurements Posted: 12 Jun 2013 10:30 AM PDT In findings that could help overcome a major technological hurdle in the road toward smaller and more powerful electronics, an international research team has shown the unique ways in which heat dissipates at the tiniest scales.

Luminous bacterial proteins detect chemicals in water Posted: 12 Jun 2013 07:18 AM PDT Scientists have developed a simple color sensor principle which facilitates the detection of residual medications, trace metals from industrial process waters, and many other substances. This is the concept: If the analyzed sample shines red, then the water is 'clean;' if its color turns green, however, then it contains the substances the scientists wish to detect.

New kind of variable star discovered: Minute variations in brightness reveal whole new class of stars Posted: 12 Jun 2013 06:37 AM PDT Astronomers have found a new type of variable star. The discovery was based on the detection of very tiny changes in brightness of stars in a cluster. The observations revealed previously unknown properties of these stars that defy current theories and raise questions about the origin of the variations.

Producing cheaper and more flexible multiple thin crystalline silicon wafers Posted: 12 Jun 2013 06:36 AM PDT Scientists have found a way to make the manufacture of crystalline silicon materials faster and more affordable.

Molecular 'sieves' harness ultraviolet irradiation for greener power generation Posted: 12 Jun 2013 06:36 AM PDT New research shows that exposing polymer molecular sieve membranes to ultraviolet (UV) irradiation in the presence of oxygen produces highly permeable and selective membranes for more efficient molecular-level separation, an essential process in everything from water purification to controlling gas emissions.

Global quantum networks based on optical fibers: Scientists quantum mechanically couple atoms to glass fiber cables Posted: 12 Jun 2013 06:35 AM PDT Researchers have quantum mechanically couple atoms to glass fiber cables. Now, they have shown that their technique enables storage of quantum information over a sufficiently long period of time to realize global quantum networks based on optical fibers.

Sunny super-Earth? Atmosphere of super-Earth exoplanet observed for time first by two Japanese telescopes Posted: 12 Jun 2013 06:35 AM PDT Astronomers have observed the atmosphere of super-Earth "GJ3470b" for the first time using two telescopes. This super-Earth is an exoplanet, having only about 14 times the mass of our home planet, and it is the second lightest one among already-surveyed exoplanets. The observational data revealed that this planet is highly likely to NOT be covered by thick clouds.

Controlling magnetic clouds in graphene Posted: 12 Jun 2013 06:35 AM PDT Wonder material graphene can be made magnetic and its magnetism switched on and off at the press of a button, opening a new avenue towards electronics with very low energy consumption. Scientists have now shown how to create elementary magnetic moments in graphene and then switch them on and off.

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