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) -- A Cornell researcher has created an extremely efficient transistor made from gallium nitride, which may soon replace silicon as king of semiconductors for power applications. http://www.physorg.com/news179518616.html Physics Tue, 08 Dec 2009 18:17:33 EST news179518616 (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) -- New, three-dimensional imaging of Martian north-polar ice layers by a radar instrument on NASA's Mars Reconnaissance Orbiter is consistent with theoretical models of Martian climate swings during the past few million years. http://www.physorg.com/news172858451.html Space & Earth Tue, 22 Sep 2009 17:30:03 EST news172858451 It is the marriage of two top candidates for the electronics of the future, both excentric and extremely interesting: Graphene, one of the partners, is an extremely thin fellow and besides, very young. http://www.physorg.com/news172305470.html Physics Wed, 16 Sep 2009 07:38:33 EST news172305470 (PhysOrg.com) -- The race is on for a successor to the popular 'flash' memory used in portable devices. European researchers think they have found a candidate in novel materials combined with a simple, easily fabricated 'crossbar' architecture. http://www.physorg.com/news167493381.html Technology Wed, 22 Jul 2009 15:20:05 EST news167493381 Better predictions of how many valuable materials behave under stress could be on the way from the National Institute of Standards and Technology (NIST), where scientists have recently found evidence of an important similarity between the behavior of polycrystalline materials -such as metals and ceramics -and glasses. http://www.physorg.com/news164455263.html Physics Wed, 17 Jun 2009 11:40:01 EST news164455263 Carbon nanotubes have made a meteoric career in the past 15 years, even if their applications are still limited. Recent research results show that - apart from their favorable mechanical and electrical properties - they also have disadvantageous characteristics. http://www.physorg.com/news160726972.html Nanotechnology Tue, 05 May 2009 07:23:41 EST news160726972 (PhysOrg.com) -- By "unzipping" carbon nanotubes, researchers have shown how to make flat graphene ribbons. Graphene, which is a one-atom-thick sheet of carbon that looks like chicken wire, has unique electrical properties that could have many future electronics applications. However, one of the biggest challenges researchers currently face is producing graphene in large quantities. http://www.physorg.com/news159436730.html Nanotechnology Mon, 20 Apr 2009 08:59:11 EST news159436730 (PhysOrg.com) -- Semiconductor nanowires -- tiny wires with a diameter as small as a few billionths of a meter - hold promise for devices of the future, both in technology like light-emitting diodes and in new versions of transistors and circuits for next generation of electronics. But in order to utilize the novel properties of nanowires, their composition must be precisely controlled, and researchers must better understand just exactly how the composition is determined by the synthesis conditions. http://www.physorg.com/news157894016.html Nanotechnology Thu, 02 Apr 2009 12:27:29 EST news157894016 New research from Rice University and the University of Oulu in Oulu, Finland, finds that carbon nanotubes could significantly improve the performance of electrical commutators that are common in electric motors and generators. http://www.physorg.com/news155939264.html Nanotechnology Tue, 10 Mar 2009 21:28:08 EST news155939264 (PhysOrg.com) -- As researchers strive to increase the density and functionality of circuit elements onto computer chips, one newer option they have is a memory resistor (or `memristor`), the fourth passive circuit element. First predicted to exist in 1971 and fabricated in 2008, memristors are two-terminal devices that change their resistance in response to the total amount of current flowing through them. http://www.physorg.com/news154865950.html Technology Thu, 26 Feb 2009 10:19:55 EST news154865950 (PhysOrg.com) -- A new ink developed by researchers at the University of Illinois allows them to write their own silver linings. http://www.physorg.com/news153671928.html Nanotechnology Thu, 12 Feb 2009 14:39:19 EST news153671928 Jizhou Song, a professor in the University of Miami College of Engineering and his collaborators Professor John Rogers, at the University of Illinois and Professor Yonggang Huang, at Northwestern University have developed a new design for stretchable electronics that can be wrapped around complex shapes, without a reduction in electronic function. http://www.physorg.com/news151765259.html Nanotechnology Wed, 21 Jan 2009 13:01:41 EST news151765259 Nanotubes, the tiny honeycomb cylinders of carbon atoms only a few nanometers wide, are perhaps the signature material of modern engineering research, but actually trying to organize the atomic scale rods is notoriously like herding cats. A new study* from the National Institute of Standards and Technology and Rice University, however, offers an inexpensive process that gets nanotubes to obediently line themselves up -- that is, self-assemble -- in neat rows, more like ducks. http://www.physorg.com/news151090330.html Nanotechnology Tue, 13 Jan 2009 17:32:10 EST news151090330