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) -- 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) -- A team of four chemists at the University of Rochester have begun work on a new kind of system to derive usable hydrogen fuel from water using only sunlight. http://www.physorg.com/news174758967.html Chemistry Wed, 14 Oct 2009 17:10:54 EST news174758967 (PhysOrg.com) -- Carbon nanotubes hold promise for delivering medicine directly to a tumor; acting as sensors so keen they detect the arrival or departure of a single electron; replacing costly platinum in fuel cells; or as energy-saving transistors and wires, but building them with the right structure has been a challenge. http://www.physorg.com/news174752422.html Nanotechnology Wed, 14 Oct 2009 15:50:01 EST news174752422 Most of us think cyber crooks cast their phishing lines mostly to try to hook everyday consumers. But some businesses across the country have seen hundreds of thousands of dollars vanish from their bank accounts after cyber attacks. http://www.physorg.com/news170963594.html Technology Mon, 31 Aug 2009 18:54:13 EST news170963594 (PhysOrg.com) -- A new process for creating ultrathin, ultrasmall inorganic light-emitting diodes (LEDs) and assembling them into large arrays offers new classes of lighting and display systems with interesting properties, such as see-through construction and mechanical flexibility, that would be impossible to achieve with existing technologies. http://www.physorg.com/news169997059.html Technology Thu, 20 Aug 2009 14:25:10 EST news169997059 You need the right tool to slice silicon blocks into paper-thin wafers: a several-kilometer-long wire wetted with a type of grinding paste. And all the parameters must be optimally adjusted -- only then can significant material losses be avoided during the cutting process. http://www.physorg.com/news168858869.html Technology Fri, 07 Aug 2009 10:30:01 EST news168858869 (PhysOrg.com) -- A team of physicists from the Universities of Cambridge and Birmingham have shown that electrons in narrow wires can divide into two new particles called spinons and a holons. http://www.physorg.com/news168182729.html Physics Thu, 30 Jul 2009 14:26:27 EST news168182729 University of Georgia researchers have developed a successful way to grow molecular wire brushes that conduct electrical charges, a first step in developing biological fuel cells that could power pacemakers, cochlear implants and prosthetic limbs. The journal Chemical Science calls the technique "a significant breakthrough for nanotechnology." http://www.physorg.com/news164652420.html Nanotechnology Fri, 19 Jun 2009 17:47:25 EST news164652420 A team of researchers at the University of Illinois has demonstrated that, counter to classical Newtonian mechanics, an entire collection of superconducting electrons in an ultrathin superconducting wire is able to "tunnel" as a pack from a state with a higher electrical current to one with a notably lower current, providing more evidence of the phenomenon of macroscopic quantum tunneling. http://www.physorg.com/news162650639.html Nanotechnology Wed, 27 May 2009 13:48:12 EST news162650639 (PhysOrg.com) -- Scientists from Queen Mary, University of London and the University of Fribourg (Switzerland) have found evidence that magnetism is involved in the mechanism behind high temperature superconductivity. http://www.physorg.com/news154538523.html Physics Sun, 22 Feb 2009 15:22:38 EST news154538523 (PhysOrg.com) -- Plants, algae, and cyanobacteria (blue-green algae) are masters of everything to do with solar energy because they are able to almost completely transform captured sunlight into chemical energy. This is in part because the electrons set free by the photons are transported out of the `light receptor` 1:1 to be used as the driving force for chemical reactions. http://www.physorg.com/news153556173.html Chemistry Wed, 11 Feb 2009 06:33:12 EST news153556173 Doctors may be implanting too many artery-opening stents and could improve patient outcomes - and ultimately save lives - if they did more in-depth measurements of blood flow in the vessels to the heart. That's the finding of a study, to be published Jan. 15 in the New England Journal of Medicine, that evaluated the benefits of a new diagnostic tool to measure blood flow and determine whether stenting was the best option. http://www.physorg.com/news151176330.html Medicine & Health Wed, 14 Jan 2009 17:25:30 EST news151176330 In warehouses, tidiness is a flexible term. Storage areas can be rearranged or moved around at any time. Forklift trucks will soon make it easy to follow the material flow and keep an overview in the warehouse automatically and with no special effort. http://www.physorg.com/news145542544.html Technology Mon, 10 Nov 2008 12:29:04 EST news145542544 University of Utah engineers devised a new way to slice thin wafers of the chemical element germanium for use in the most efficient type of solar power cells. They say the new method should lower the cost of such cells by reducing the waste and breakage of the brittle semiconductor. http://www.physorg.com/news140673133.html Technology Mon, 15 Sep 2008 04:52:13 EST news140673133 Just in time - the car coasts into the gas station on its last drop of fuel. In order to fill the tank, the driver first has to release the fuel filler flap, usually by pushing a button inside the vehicle. The actual releasing is performed by a small servo motor, several cogwheels and various springs, more than ten separate parts in all. http://www.physorg.com/news134916058.html Technology Thu, 10 Jul 2008 13:40:58 EST news134916058