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Tuesday, January 31, 2012
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ScienceDaily: Top Technology News
ScienceDaily: Top Technology News |
- Terahertz polarizer nears perfection: Research leads to nanotube-based device for communication, security, sensing
- Superfluorescence seen from solid-state material: Many bodies make one coherent burst of light
- Scientists see 'sloshing' galaxy cluster
- Bright lights of purity: Why pure quantum dots and nanorods shine brighter
- Ferroelectric switching discovered for first time in soft biological tissue
- Smart paint could revolutionize structural safety of bridges, mines and more
- Chirality of a nanotube controls growth: Armchair nanotubes grow fastest
- Oxygen molecule survives to enormously high pressures
- Cosmology in a Petri dish
| Posted: 30 Jan 2012 02:26 PM PST Researchers are using carbon nanotubes as the critical component of a robust terahertz polarizer that could accelerate the development of new security and communication devices, sensors and non-invasive medical imaging systems as well as fundamental studies of low-dimensional condensed matter systems.  |
| Superfluorescence seen from solid-state material: Many bodies make one coherent burst of light Posted: 30 Jan 2012 02:26 PM PST In a flash, the world changed for Tim Noe -- and for physicists who study what they call many-body problems. The graduate student was the first to see, in the summer of 2010, proof of a theory that solid-state materials are capable of producing an effect known as superfluorescence.  |
| Scientists see 'sloshing' galaxy cluster Posted: 30 Jan 2012 02:24 PM PST Scientists have recently discovered that vast clouds of hot gas are "sloshing" in Abell 2052, a galaxy cluster located about 480 million light years from Earth.  |
| Bright lights of purity: Why pure quantum dots and nanorods shine brighter Posted: 30 Jan 2012 02:24 PM PST Researchers have discovered why a promising technique for making quantum dots and nanorods has so far been a disappointment. Better still, they've also discovered how to correct the problem.  |
| Ferroelectric switching discovered for first time in soft biological tissue Posted: 30 Jan 2012 02:01 PM PST The walls of the aorta, the largest blood vessel carrying blood from the heart, exhibits a response to electric fields known to exist in inorganic and synthetic materials. The discovery could have implications for treating human heart disease.  |
| Smart paint could revolutionize structural safety of bridges, mines and more Posted: 30 Jan 2012 10:15 AM PST An innovative low-cost smart paint that can detect microscopic faults in wind turbines, mines and bridges before structural damage occurs is being developed.  |
| Chirality of a nanotube controls growth: Armchair nanotubes grow fastest Posted: 30 Jan 2012 10:08 AM PST Scientists have experimentally confirmed a theory that foretold a pair of interesting properties about nanotube growth: That the chirality of a nanotube controls the speed of its growth, and that armchair nanotubes should grow the fastest.  |
| Oxygen molecule survives to enormously high pressures Posted: 30 Jan 2012 06:39 AM PST Using computer simulations, researchers have shown that the oxygen molecule (O2) is stable up to pressures of 1.9 terapascal, which is about nineteen million times higher than atmosphere pressure. Above that, it polymerizes, i.e. builds larger molecules or structures.  |
| Posted: 26 Jan 2012 07:13 AM PST Scientists have found that micron-size particles which are trapped at fluid interfaces exhibit a collective dynamic that is subject to seemingly unrelated governing laws. These laws show a smooth transitioning from long-ranged cosmological-style gravitational attraction down to short-range attractive and repulsive forces.  |
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