ScienceDaily: Top Technology News |
- Theory explains how new material could improve electronic shelf life
- Nanoscale metallic conductivity demonstrataed in ferroelectrics
- Clearest picture yet of dark matter points the way to better understanding of dark energy
- Scientists solve mystery of colorful armchair nanotubes
- Astronomers reach new frontiers of dark matter
- Scientists discover a Saturn-like ring system eclipsing a sun-like star
- Almost perfect: A breakthrough in superlens development
- Keeping electronics cool
- Light makes write for DNA information-storage device
- Graphene's piezoelectric promise
| Theory explains how new material could improve electronic shelf life Posted: 09 Jan 2012 06:15 PM PST Engineers have discovered that the new material graphene conducts heat about 20 times faster than silicon, making it an option as a semiconductor material that could produce quieter and longer-lasting computers, cellphones and other devices.  |
| Nanoscale metallic conductivity demonstrataed in ferroelectrics Posted: 09 Jan 2012 12:59 PM PST The prospect of electronics at the nanoscale may be even more promising with the first observation of metallic conductance in ferroelectric nanodomains.  |
| Clearest picture yet of dark matter points the way to better understanding of dark energy Posted: 09 Jan 2012 12:57 PM PST Scientists have independently made the largest direct measurements of the invisible scaffolding of the universe, using the gravitational lensing effect known as "cosmic shear" to build maps of the distribution of dark matter. Their methods show that surveys with ground-based telescopes can measure cosmic shear with enough accuracy to aid in better understanding the mysterious space-stretching effects of dark energy.  |
| Scientists solve mystery of colorful armchair nanotubes Posted: 09 Jan 2012 11:59 AM PST Researchers have figured out what gives armchair nanotubes their unique bright colors: hydrogen-like objects called excitons.  |
| Astronomers reach new frontiers of dark matter Posted: 09 Jan 2012 10:27 AM PST For the first time, astronomers have mapped dark matter on the largest scale ever observed. New findings reveal a Universe comprising an intricate cosmic web of dark matter and galaxies spanning more than one billion light years.  |
| Scientists discover a Saturn-like ring system eclipsing a sun-like star Posted: 09 Jan 2012 08:58 AM PST A team of astrophysicists has discovered a ring system in the constellation Centaurus that invites comparisons to Saturn. This is the first system of discrete, thin, dust rings detected around a very low-mass object outside of our solar system.  |
| Almost perfect: A breakthrough in superlens development Posted: 09 Jan 2012 07:29 AM PST A new theoretical negative-index metamaterial works by overcoming the diffraction limit throughout the visible spectrum.  |
| Posted: 09 Jan 2012 07:29 AM PST An engineering professor has made a breakthrough discovery with graphene, a material that could play a major role in keeping laptops and other electronic devices from overheating.  |
| Light makes write for DNA information-storage device Posted: 05 Jan 2012 11:58 AM PST Researchers have demonstrated a write-once-read-many-times information-storage device, made of DNA embedded with silver nanoparticles, that uses ultraviolet light to encode data.  |
| Graphene's piezoelectric promise Posted: 05 Jan 2012 11:58 AM PST Engineers predict that graphene can be coaxed into acting piezoelectric, merely by punching triangular holes into the material.  |
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