http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- "Carbon nanotubes are exciting for fundamental physics, and for potential technological applications," Nadya Mason tells PhysOrg.com. "However, we are generally limited in the way that we can study them. Many of these limitations have to do with controlling tunneling, or the way electrons move on and off the nanotube." In order to overcome this limitation, Mason, a scientist at the University of Illinois at Urbana-Champaign, participated in an experiment using a superconducting tunnel probe in a carbon nanotube to observe spectroscopic features. http://www.physorg.com/news177934374.html Nanotechnology Fri, 20 Nov 2009 10:13:55 EST news177934374 (PhysOrg.com) -- Most people would like to be able to charge their cell phones and other personal electronics quickly and not too often. A recent discovery made by UC San Diego engineers could lead to carbon nanotube-based supercapacitors that could do just this. http://www.physorg.com/news177865593.html Nanotechnology Thu, 19 Nov 2009 15:07:50 EST news177865593 (PhysOrg.com) -- One of the drawbacks associated with using semiconductor lasers is that many of them can only produce a beam of a single wavelength, and can only send that beam in one direction at a time. There have been efforts to tune lasers so that different wavelengths can be achieved, but these lasers still emit light only in one direction, and one wavelength at a given time. All that could change, though. Harvard University scientists Federico Capasso and Nanfang Yu , in Cambridge, Massachusetts, have been working with an international team to develop a laser that offers multibeam emission. http://www.physorg.com/news177582639.html Physics Mon, 16 Nov 2009 09:50:01 EST news177582639 (PhysOrg.com) -- A Cornell research team has invented a simple way to make graphene electrical devices by growing the graphene directly onto a silicon wafer. http://www.physorg.com/news177062908.html Nanotechnology Tue, 10 Nov 2009 08:10:01 EST news177062908 (PhysOrg.com) -- Scientists have found that acidic ozone water can deactivate H1N1 viruses very effectively, offering a promising disinfectant for the millions of people trying to avoid the disease. Acidic ozone water (AOW) is made from regular tap water mixed with a small amount of acid such as hydrochloric acid, along with an ozonized gas that can be produced in the lab. After deactivating the virus, the substance eventually decays into plain water, leaving no residue or harmful materials in the environment. http://www.physorg.com/news176991361.html Chemistry Mon, 09 Nov 2009 12:18:10 EST news176991361 (PhysOrg.com) -- In 2008, scientists built a loudspeaker made of carbon nanotubes that produced sound and music based on the thermoacoustic effect. Now, a different team of scientists has built a loudspeaker made of tiny aluminum wires suspended like a bridge between two supports, producing sound in a similar way. The new wire bridge also has the advantage of being much easier to fabricate than the nanotube device, offering the potential for a wide range of audio applications. http://www.physorg.com/news176543078.html Physics Wed, 04 Nov 2009 09:00:01 EST news176543078 (PhysOrg.com) -- By taking advantage of the vagaries of the natural world, Duke University engineers have developed a novel approach that they believe can more efficiently harvest electricity from the motions of everyday life. http://www.physorg.com/news175966447.html Physics Wed, 28 Oct 2009 16:35:22 EST news175966447 Scientists at the California Institute of Technology have uncovered the physical mechanism by which arrays of nanoscale pillars can be grown on polymer films with very high precision, in potentially limitless patterns. http://www.physorg.com/news175451434.html Nanotechnology Thu, 22 Oct 2009 17:31:34 EST news175451434 (PhysOrg.com) -- A team of physicists from the Stanford Synchrotron Radiation Lightsource, including graduate student David Bernstein, have made a promising discovery that a well-known synchrotron technique is applicable to free-electron lasers. http://www.physorg.com/news174589801.html Physics Mon, 12 Oct 2009 18:11:29 EST news174589801 (PhysOrg.com) -- Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri researchers are developing a nuclear energy source that is smaller, lighter and more efficient. http://www.physorg.com/news174139641.html Technology Wed, 07 Oct 2009 13:07:57 EST news174139641 (PhysOrg.com) -- A team of international researchers is the first to uncover the chemical composition and structure of a microelectronics element that is vital to producing ever smaller - and, thus, cheaper and faster - devices. http://www.physorg.com/news173985674.html Physics Mon, 05 Oct 2009 19:00:02 EST news173985674 (PhysOrg.com) -- Building the super-fast computers of the future has just become much easier thanks to an advance by Australian researchers that lets them grab hold of tiny electronics components and probe their inner structure using only a beam of light. http://www.physorg.com/news173710043.html Nanotechnology Fri, 02 Oct 2009 13:49:01 EST news173710043 (PhysOrg.com) -- A short circuit can be quite hairy: satellites have failed, a NASA computer centre was repeatedly paralysed and the US public heath authority recalled thousands of pacemakers - all because tin whiskers caused a short circuit in the electronic components of these devices. http://www.physorg.com/news173450615.html Physics Tue, 29 Sep 2009 13:44:24 EST news173450615 (PhysOrg.com) -- Researchers say they have found a simple way to improve the semiconducting properties of the world`s thinnest material - by giving it a good tug. http://www.physorg.com/news173340834.html Nanotechnology Mon, 28 Sep 2009 07:14:30 EST news173340834 Yale engineers have for the first time observed and tracked E. coli bacteria moving in a liquid medium with a motion similar to that of a kayak paddle. http://www.physorg.com/news173098975.html Physics Fri, 25 Sep 2009 12:03:54 EST news173098975