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) -- Hydrogen is a promising alternative energy carrier that can be efficiently converted into electrical energy in fuel cells. One hurdle to the introduction of sustainable hydrogen technology is the fact that the large-scale industrial production of hydrogen through reforming processes is still largely based on fossil fuels, and thus is not carbon neutral. http://www.physorg.com/news178969673.html Chemistry Wed, 02 Dec 2009 10:30:01 EST news178969673 One way the United States could slash its electricity use, dependence on fossil fuels and emissions of heat-trapping gases is really quite simple: better light bulbs. http://www.physorg.com/news169404880.html Technology Thu, 13 Aug 2009 18:30:01 EST news169404880 University of Central Florida researchers have shown for the first time that light energy can gently guide and change the orientation of living cells within lab cultures. That ability to optically steer cells could be a major step in harnessing the healing power of stem cells and guiding them to areas of the body that need help. http://www.physorg.com/news169223722.html Physics Tue, 11 Aug 2009 15:50:01 EST news169223722 For the past 6 months, the Silver Creek Sportsplex in San Jose, Calif., has been testing ceiling lighting from a nearby startup that holds the promise of saving huge amounts of energy. http://www.physorg.com/news166730594.html Technology Mon, 13 Jul 2009 22:20:02 EST news166730594 Q: How many LED engineers does it take to change a light bulb? http://www.physorg.com/news164918992.html Technology Mon, 22 Jun 2009 19:50:25 EST news164918992 (PhysOrg.com) -- An international team of scientists has determined the structure of the chlorophyll molecules in green bacteria that are responsible for harvesting light energy. The team's results one day could be used to build artificial photosynthetic systems, such as those that convert solar energy to electrical energy. A research paper about the discovery will be published on 4 May 2009 in the Proceedings of the National Academy of Sciences. http://www.physorg.com/news160676286.html Biology Mon, 04 May 2009 17:18:41 EST news160676286 (PhysOrg.com) -- A new approach to calibrating quantum mechanical measurement has been developed with particular applications in optics and super-secure quantum communication. http://www.physorg.com/news146150726.html Physics Mon, 17 Nov 2008 13:25:26 EST news146150726 (PhysOrg.com) -- Gold nanoparticles are under consideration for a number of biomedical applications, such as tumor treatment. A German-American research team at Carnegie Mellon University in Pittsburgh, Hunter College in New York, and the RWTH Aachen has now developed a new method for the production of nanoscopic gold rods. In contrast to previous methods, they have achieved this without the use of cytotoxic additives. As they report in the journal Angewandte Chemie, the synthesis is not carried out in water, but in an ionic liquid, a `liquid salt`. http://www.physorg.com/news140066986.html Nanotechnology Mon, 08 Sep 2008 04:29:46 EST news140066986