ScienceDaily: Top Technology News |
- New insight into how disordered solids deform
- Manufacturing method paves way for commercially viable quantum dot-based LEDs
- Down to the wire: Inexpensive technique for making high quality nanowire solar cells
- The star that should not exist
- Iron 'veins' are secret of promising new hydrogen storage material
- Record-low error rate for quantum information processing with one qubit
- Hydrogen powered prototype vessel for inland waterways: Canal boat runs on fuel cell drive
- Hubble movies provide unprecedented view of supersonic jets from young stars
| New insight into how disordered solids deform Posted: 31 Aug 2011 01:02 PM PDT In solid materials with regular atomic structures, figuring out weak points where the material will break under stress is relatively easy. But for disordered solids, like glass or sand, their disordered nature makes such predictions much more daunting tasks. Now, a collaboration combining a theoretical model with a first-of-its kind experiment has demonstrated a novel method for identifying "soft spots" in such materials.  |
| Manufacturing method paves way for commercially viable quantum dot-based LEDs Posted: 31 Aug 2011 01:02 PM PDT Researchers may help resolve the public debate over our future light source of choice: Edison's incandescent bulb or the more energy efficient compact fluorescent lamp. It could be neither. Instead, our future lighting needs may be supplied by a new breed of light emitting diode, or LED, that conjures light from the invisible world of quantum dots.  |
| Down to the wire: Inexpensive technique for making high quality nanowire solar cells Posted: 31 Aug 2011 01:00 PM PDT Researchers have developed a solution-based technique for fabricating core/shell nanowire solar cells using the semiconductors cadmium sulfide for the core and copper sulfide for the shell. These inexpensive and easy-to-make nanowire solar cells hold great promise for future solar cell technology.  |
| The star that should not exist Posted: 31 Aug 2011 12:53 PM PDT A team of European astronomers has used the European Southern Observatory's Very Large Telescope (VLT) to track down a star in the Milky Way that many thought was impossible. They discovered that this star is composed almost entirely of hydrogen and helium, placing it in the "forbidden zone" of a widely accepted theory of star formation, meaning that it should never have come into existence.  |
| Iron 'veins' are secret of promising new hydrogen storage material Posted: 31 Aug 2011 08:58 AM PDT Scientists have a new approach to the problem of safely storing hydrogen in future fuel-cell powered cars -- molecular scale 'veins' of iron permeating grains of magnesium like a network of capillaries.  |
| Record-low error rate for quantum information processing with one qubit Posted: 31 Aug 2011 08:58 AM PDT Physicists have achieved a record-low probability of error in quantum information processing with a single quantum bit (qubit) -- the first published error rate small enough to meet theoretical requirements for building viable quantum computers.  |
| Hydrogen powered prototype vessel for inland waterways: Canal boat runs on fuel cell drive Posted: 31 Aug 2011 06:39 AM PDT Researchers have been operating a canal boat with a fuel cell drive for three years now. In the world of shipbuilding, however, different rules apply than those in the automobile manufacturing industries. Weight is of practically no significance, but the propulsion plant must have an operating lifetime as long as that of the boat itself. The hydride storage system -- the hydrogen tank -- must meet this challenging requirement.  |
| Hubble movies provide unprecedented view of supersonic jets from young stars Posted: 31 Aug 2011 06:39 AM PDT Astronomers have combined two decades of Hubble observations to make unprecedented movies revealing never-before-seen details of the birth pangs of new stars. This sheds new light on how stars like the Sun form.  |
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