ScienceDaily: Top Technology News |
- Planck all-sky images show cold gas and strange haze in Milky Way galaxy
- Engineers create tandem polymer solar cells that set record for energy-conversion
- Molecular carpet: Startling results in synthetic chemistry
- Better tooth fillings? Materials that shrink when heated
- Potential for incorrect relationship identification in new forensic familial searching techniques
- Predicting system crashes in nature and society
| Planck all-sky images show cold gas and strange haze in Milky Way galaxy Posted: 13 Feb 2012 11:30 AM PST New images from the Planck mission show previously undiscovered islands of star formation and a mysterious haze of microwave emissions in our Milky Way galaxy. The views give scientists new treasures to mine and take them closer to understanding the secrets of our galaxy.  |
| Engineers create tandem polymer solar cells that set record for energy-conversion Posted: 13 Feb 2012 10:37 AM PST Researchers in California report that they have significantly enhanced polymer solar cells' performance by building a device with a new "tandem" structure that combines multiple cells with different absorption bands. The device had a certified power-conversion efficiency of 8.62 percent and set a world record in July 2011. After the researchers incorporated a new infrared-absorbing polymer material into the device, the device's architecture proved to be widely applicable and the power-conversion efficiency jumped to 10.6 percent -- a new record -- as certified by the U.S. Department of Energy's National Renewable Energy Laboratory.  |
| Molecular carpet: Startling results in synthetic chemistry Posted: 13 Feb 2012 10:34 AM PST Swiss scientists have created a minor sensation in synthetic chemistry. The team of scientists succeeded for the first time in producing regularly ordered planar polymers that form a kind of 'molecular carpet' on a nanometer scale.  |
| Better tooth fillings? Materials that shrink when heated Posted: 10 Feb 2012 07:47 AM PST New research holds promise for applications ranging from high-precision optical components to tooth fillings.  |
| Potential for incorrect relationship identification in new forensic familial searching techniques Posted: 09 Feb 2012 02:28 PM PST New research suggests that unrelated individuals may be mistakenly identified as genetic family members due to inaccurate genetic assumptions. This is particularly relevant when considering familial searching: a new technique which extends forensic identification to family members of individuals with profiles in offender/arrestee DNA databases. In a new study, researchers show that false familial identification may be more likely for individuals with particular genetic backgrounds; for example, in the USA, those of Asian or Native American descent.  |
| Predicting system crashes in nature and society Posted: 02 Feb 2012 05:17 PM PST The world can deliver sudden and nasty shocks. Economies can crash, fisheries can collapse, and climates can pass tipping points. Providing early warning of such changes currently requires the collection of enormous and often prohibitive amounts of data. A new method could change this. In a newly published paper, researchers present a mathematical methodology that uses easily obtainable information to greater effect and can therefore reduce the amount of additional data that needs to be collected.  |
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