ScienceDaily: Top Technology News |
- Suspects in the quenching of star formation exonerated
- Astronomers find bounty of failed stars: One youngster only six times heftier than Jupiter
- New equation predicts molecular forces in hydrophobic interactions
- New knowledge about 'flawed' diamonds could speed the development of diamond-based quantum computers
- New 'diamond?' New form of superhard carbon is as strong as a diamond
- Point defects in super-chilled diamonds may offer stable candidates for quantum computing bits
- X-ray camera makes A-grade particle detector
- New mathematical model explains patterns of human movement by considering the costs
- Liquid can turn into solid under high electric field, physicists show in simulations
- Uncharted territory: Scientists sequence the first carbohydrate biopolymer
- Engineers create touchscreen Braille writer
- Progress in quantum computing: Researchers control rate of photon emission from luminescent imperfections in diamond
- Pendulums and floating film: Two seemingly unrelated phenomena share surprising link
- Astrophysicists find evidence of black holes' destruction of stars
| Suspects in the quenching of star formation exonerated Posted: 11 Oct 2011 02:15 PM PDT Some supermassive black holes power luminous, rapidly growing objects called active galactic nuclei (AGN) that gather and condense enormous quantities of matter. Because astronomers had seen these objects primarily in massive, old galaxies with aging stars, many thought AGN might help to end the formation of new stars, though the evidence was always circumstantial. Now, a new survey has found AGN in all kinds of galaxies, including young, star-making factories.  |
| Astronomers find bounty of failed stars: One youngster only six times heftier than Jupiter Posted: 11 Oct 2011 12:44 PM PDT A team of astronomers has discovered over two dozen new free-floating brown dwarfs, including a lightweight youngster only about six times heftier than Jupiter, that reside in two young star clusters. What's more, one cluster contains a surprising surplus of them, harboring half as many of these astronomical oddballs as normal stars.  |
| New equation predicts molecular forces in hydrophobic interactions Posted: 11 Oct 2011 12:44 PM PDT The physical model to describe the hydrophobic interactions of molecules has been a mystery that has challenged scientists and engineers since the 19th century. Hydrophobic interactions are central to explaining why oil and water don't mix, how proteins are structured, and what holds biological membranes together. Chemical engineering researchers have developed a novel method to study these forces at the atomic level, and have for the first time defined a mathematical equation to measure a substance's hydrophobic character.  |
| New knowledge about 'flawed' diamonds could speed the development of diamond-based quantum computers Posted: 11 Oct 2011 11:57 AM PDT Scientists have established the presence of a dynamic Jahn-Teller effect in defective diamonds, a finding that will help advance the development of diamond-based systems in applications such as quantum information processing.  |
| New 'diamond?' New form of superhard carbon is as strong as a diamond Posted: 11 Oct 2011 09:14 AM PDT Carbon is the fourth-most-abundant element in the universe and takes on a wide variety of forms, called allotropes, including diamond and graphite. Scientists have now discovered a new form of carbon, which is capable of withstanding extreme pressure stresses that were previously observed only in diamond.  |
| Point defects in super-chilled diamonds may offer stable candidates for quantum computing bits Posted: 11 Oct 2011 09:14 AM PDT Scientists test how the energy levels of electrons trapped in a defect in the diamond matrix shift with changing temperatures.  |
| X-ray camera makes A-grade particle detector Posted: 11 Oct 2011 09:12 AM PDT Combining an off-the-shelf X-ray camera with a thin piece of carbon foil yields a device that can detect high-energy organic atoms and heavy molecules better than the typical devices used for these jobs, with potential benefits ranging from the science of cancer treatment to star chemistry.  |
| New mathematical model explains patterns of human movement by considering the costs Posted: 11 Oct 2011 09:12 AM PDT People decide to take trips for a dauntingly complex mix of reasons, but out of the individual chaos of dry-cleaning pick-ups, pizza dinners, and European vacations, a new mathematical model has emerged. It finds hidden patterns in human beings' collective excursions near, not-so-near, and far from home.  |
| Liquid can turn into solid under high electric field, physicists show in simulations Posted: 11 Oct 2011 08:29 AM PDT Physicists have demonstrated in simulations that under the influence of sufficiently high electric fields, liquid droplets of certain materials will undergo solidification, forming crystallites at temperature and pressure conditions that correspond to liquid droplets at field-free conditions.  |
| Uncharted territory: Scientists sequence the first carbohydrate biopolymer Posted: 11 Oct 2011 08:27 AM PDT For the first time ever, a team of researchers has announced the sequence of a complete complex carbohydrate biopolymer. The surprising discovery provides the scientific and medical communities with an important and fundamental new view of these vital biomolecules, which play a role in everything from cell structure and development to disease pathology and blood clotting.  |
| Engineers create touchscreen Braille writer Posted: 11 Oct 2011 07:21 AM PDT In a two-month summer course on high-performance computing, promising undergrads compete to create innovative applications. This summer's winner developed a touchscreen Braille writer that stands to revolutionize how the blind negotiate an unseen world by replacing devices costing up to 10 times more.  |
| Posted: 11 Oct 2011 07:21 AM PDT Engineers and physicists at Harvard have managed to capture light in tiny diamond pillars embedded in silver, releasing a stream of single photons at a controllable rate. The advance represents a milestone on the road to quantum networks in which information can be encoded in spins of electrons and carried through a network via light, one photon at a time.  |
| Pendulums and floating film: Two seemingly unrelated phenomena share surprising link Posted: 11 Oct 2011 07:20 AM PDT A coupled line of swinging pendulums apparently has nothing in common with an elastic film that buckles and folds under compression while floating on a liquid, but scientists have discovered a deep connection between the two phenomena.  |
| Astrophysicists find evidence of black holes' destruction of stars Posted: 11 Oct 2011 07:20 AM PDT Astrophysicists have found evidence of black holes destroying stars, a long-sought phenomenon that provides a new window into general relativity. The research also opens up a method to search for the possible existence of a large population of presently undetectable "intermediate mass" black holes which are hypothesized to be precursors to the super-massive black holes at the centers of most large galaxies.  |
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