ScienceDaily: Top Technology News |
- Perfectly spherical gold nanodroplets produced with the smallest-ever nanojets
- Novel chemical route to form organic molecules
- Superconducting current limiter guarantees electricity supply of the Boxberg power plant
- Particle-free silver ink prints small, high-performance electronics
- World's smallest magnetic data storage unit
- One-third of car fuel consumption is due to friction loss
- New nanotech technique for lower-cost materials repair
- Calculating what's in the universe from the biggest color 3-D map
- Algae for your fuel tank
| Perfectly spherical gold nanodroplets produced with the smallest-ever nanojets Posted: 13 Jan 2012 05:54 PM PST Scientists have developed a new method for optical manipulation of matter at the nanoscale. Using 'plasmonic hotspots' – regions with electric current that heat up very locally – gold nanostructures can be melted and made to produce the smallest nanojets ever observed. The tiny gold nanodroplets formed in the nanojets, are perfectly spherical, which makes them interesting for applications in medicine.  |
| Novel chemical route to form organic molecules Posted: 13 Jan 2012 07:20 AM PST Scientists have discovered a novel chemical route to form polycyclic aromatic hydrocarbons -- complex organic molecules such as naphthalene carrying fused benzene rings -- in ultra-cold regions of interstellar space.  |
| Superconducting current limiter guarantees electricity supply of the Boxberg power plant Posted: 13 Jan 2012 07:20 AM PST For the first time, a superconducting current limiter based on YBCO strip conductors has now been installed at a power plant. At the Boxberg power plant of Vattenfall, the current limiter protects the grid for own consumption that is designed for 12,000 volts and 800 amperes against damage due to short circuits and voltage peaks.  |
| Particle-free silver ink prints small, high-performance electronics Posted: 13 Jan 2012 06:36 AM PST Materials scientists have developed a new reactive silver ink for printing high-performance electronics on ubiquitous, low-cost materials such as flexible plastic, paper or fabric substrates. The reactive ink has several advantages over particle-based inks: low processing temperature, high conductivity, and the ability to print very small features.  |
| World's smallest magnetic data storage unit Posted: 12 Jan 2012 11:22 AM PST Scientists have built the world's smallest magnetic data storage unit. It uses just twelve atoms per bit, the basic unit of information, and squeezes a whole byte (8-bit) into as few as 96 atoms.  |
| One-third of car fuel consumption is due to friction loss Posted: 12 Jan 2012 06:58 AM PST No less than one-third of a car's fuel consumption is spent in overcoming friction, and this friction loss has a direct impact on both fuel consumption and emissions. However, new technology can reduce friction by anything from 10 to 80 percent in various components of a car, according to a new study.  |
| New nanotech technique for lower-cost materials repair Posted: 11 Jan 2012 07:38 PM PST Polymer scientists and engineers have discovered how to make nano-scale repairs to a damaged surface equivalent to spot-filling a scratched car fender rather than re-surfacing the entire part.  |
| Calculating what's in the universe from the biggest color 3-D map Posted: 11 Jan 2012 12:40 PM PST Astronomers have used visual data from nearly a million luminous galaxies for the most accurate calculation yet of how matter clumps together in the universe. By deriving cosmic rulers from an immense volume of sky, from a time when the universe was half its present age until now, the study establishes how much dark matter, dark energy, and even hard-to-detect neutrinos it contains.  |
| Posted: 10 Jan 2012 12:17 PM PST The available amount of fossil fuels is limited and their combustion in vehicle motors increases atmospheric carbon dioxide levels. The generation of fuels from biomass as an alternative is on the rise. Scientists have now introduced a new catalytic process that allows the effective conversion of biopetroleum from microalgae into diesel fuels.  |
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