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world science
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physics
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| Air-purifying church windows early nanotechnology 2008-08-21T10:16:25-07:00 |
| Stained glass windows that are painted with gold purify the air when they are lit up by sunlight, a team of Queensland University of Technology experts have discovered. |
| New 'nano-positioners' may have atomic-scale precision 2008-08-20T14:48:19-07:00 |
| Engineers have created a tiny motorized positioning device that has twice the dexterity of similar devices being developed for applications that include biological sensors and more compact, powerful computer hard drives. |
| Unregulated nanoparticles from diesel engines inhibit lungs 2008-08-20T14:45:52-07:00 |
| (PhysOrg.com) -- Diesel engines emit countless carbon nanoparticles into the air, slipping through government regulation and vehicle filters. A new University of Michigan simulation shows that these nanoparticles can get trapped in the lungs and inhibit the function of a fluid that facilitates breathing. |
| An Unconventional Metal 2008-08-20T12:58:15-07:00 |
| The semiconductor silicon and the ferromagnet iron are the basis for much of mankind's technology, used in everything from computers to electric motors. In this week's issue of the journal Nature (August 21st) an international group of scientists, including academic and industrial researchers from the UK, USA and Lesotho, report that they have combined these elements with a small amount of another common metal, manganese, to create a new material which is neither a magnet nor an ordinary semiconductor. |
| Light touch: Controlling the behavior of quantum dots 2008-08-19T17:18:26-07:00 |
| Researchers from the National Institute of Standards and Technology and the Joint Quantum Institute (JQI), a collaborative center of the University of Maryland and NIST, have reported a new way to fine-tune the light coming from quantum dots by manipulating them with pairs of lasers. Their technique, published in Physical Review Letters, could significantly improve quantum dots as a source of pairs of “entangled” photons, a property with important applications in quantum information technologies. |
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| Fast quantum computer building block created 2008-08-20T12:55:27-07:00 |
| (PhysOrg.com) -- The fastest quantum computer bit that exploits the main advantage of the qubit over the conventional bit has been demonstrated by researchers at University of Michigan, U.S. Naval Research Laboratory and the University of California at San Diego. |
| Large Hadron Collider set to unveil a new world of particle physics 2008-08-19T17:10:21-07:00 |
| (PhysOrg.com) -- The field of particle physics is poised to enter unknown territory with the startup of a massive new accelerator--the Large Hadron Collider (LHC)--in Europe this summer. On September 10, LHC scientists will attempt to send the first beam of protons speeding around the accelerator. |
| Chemist Travels World to Study Mysterious Properties of Neutrinos 2008-08-19T14:27:05-07:00 |
| In the quest to better understand one of nature's most "ghostly" elementary particles — the neutrino — scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory are spreading their expertise from the mines of Canada to the mountains of China. Richard L. Hahn, a senior chemist at Brookhaven Lab, will discuss some of the neutrino's mysterious properties and two new neutrino research projects at the 236th National Meeting of the American Chemical Society on Tuesday, August 19, 2008. |
| Scientists Move Optical Computing Closer to Reality 2008-08-19T14:16:17-07:00 |
| (PhysOrg.com) -- Scientists at the University of Pennsylvania have theorized a way to increase the speed of pulses of light that bound across chains of tiny metal particles to well past the speed of light by altering the particle shape. Application of this theory would use nanosized metal chains as building blocks for novel optoelectronic and optical devices, which would operate at higher frequencies than conventional electronic circuits. Such devices could eventually find applications in the developing area of high-speed optical computing, in which protons and light replace electrons and transistors for greater performance. |
| Olympic Swimmers Shattering Records in NASA-Tested Suit 2008-08-18T13:53:24-07:00 |
| (PhysOrg.com) -- Swimmers from around the world are setting world and Olympic records in Beijing this month and most are doing it wearing a swimsuit made of fabric tested at NASA. |
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