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) -- Quantum mechanics could help build ultra-high-resolution electron microscopes that won't destroy living cells, according to MIT electrical engineers. http://www.physorg.com/news174035443.html Physics Tue, 06 Oct 2009 08:12:08 EST news174035443 (PhysOrg.com) -- For decades, the transistors inside radios, televisions and other everyday items have transmitted data by controlling the movement of the electron`s charge. Scientists now have discovered that transistors could use less energy, generate less heat and operate at higher speeds if they exploited another property of the electron: its spin. http://www.physorg.com/news175283352.html Nanotechnology Tue, 20 Oct 2009 19:40:01 EST news175283352 (PhysOrg.com) -- While quantum dots have existed since the 1980s, only in the past decade have physicists successfully created lateral few-electron single quantum dots. These quantum dots enable physicists to manipulate quantum spins, which could be used as qubits for quantum information applications. Along these lines, a team of physicists from the National Research Council in Canada who were responsible for the original lateral few-electron single quantum dot have recently designed a new few-electron triple quantum dot circuit, and demonstrated that all three quantum dots can be tuned in resonance. http://www.physorg.com/news178789034.html Nanotechnology Mon, 30 Nov 2009 09:10:01 EST news178789034 Particle accelerators are among the largest and most expensive scientific instruments. Thirty years ago, theorists John Dawson and Toshiki Tajima proposed an idea for making them thousands of times smaller: surf the particles on plasma waves driven by short intense laser pulses. Since plasmas are free of the damage limits of conventional accelerators, much larger fields can be built up within such waves, enabling much smaller accelerators. http://www.physorg.com/news176402686.html Physics Mon, 02 Nov 2009 17:20:01 EST news176402686 (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 (PhysOrg.com) -- In finally answering an elusive scientific question, researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have shown that the selective placement of strain can alter the electronic phase and its spatial arrangement in correlated electron materials. This unique class of materials is commanding much attention now because they can display properties such as colossal magnetoresistance and high-temperature superconductivity, which are highly coveted by the high-tech industry. http://www.physorg.com/news172408968.html Nanotechnology Thu, 17 Sep 2009 12:24:07 EST news172408968 (PhysOrg.com) -- Researchers from the NSLS and Science Applications International Corporation (SAIC) have demonstrated a technique that could be used to significantly improve the quantity and quality of light produced from a free-electron laser (FEL) - a source that provides pulses of light that can be 1,000 times shorter than those at conventional storage ring light sources. http://www.physorg.com/news177952043.html Physics Fri, 20 Nov 2009 15:24:58 EST news177952043 (PhysOrg.com) -- While researchers have already demonstrated the building blocks for few-bit quantum computers, scaling these systems up to large quantum computers remains a challenge. One of the biggest problems is developing physical systems that can reliably store thousands of qubits, and enabling bits and pairs to be addressed individually for gate operations. http://www.physorg.com/news171705608.html Physics Wed, 09 Sep 2009 09:02:02 EST news171705608 (PhysOrg.com) -- For the first time, it has been possible to measure electron density in individual molecular states using what is known as the photoelectric effect. Now published in Science, this method represents a key building block in the development of organic semiconductor elements. Supported by the Austrian Science Fund FWF, the success of this project rested on the mathematical transformation of the measured data. This made it possible to interpret the distribution of the electrons and draw conclusions about the potential properties of organic semiconductor elements. http://www.physorg.com/news177582885.html Physics Mon, 16 Nov 2009 08:35:28 EST news177582885 (PhysOrg.com) -- New insight into how nature handles some fundamental processes is guiding researchers in the design of tailor-made proteins for applications such as artificial photosynthetic centers, long-range electron transfers, and fuel-cell catalysts for energy conversion. http://www.physorg.com/news176564279.html Chemistry Wed, 04 Nov 2009 13:38:36 EST news176564279 Three decades ago, American and Finnish scientists came up with a very powerful method for cooling gases by "laser bombardment." Only now were physicists at the University of Bonn able to demonstrate that it actually works. The work of the Bonn scientists will appear in the forthcoming issue of the journal Nature. Fast cooling by laser bombardment could, inter alia, possibly be used for the construction of new mini fridges. http://www.physorg.com/news171120090.html Physics Wed, 02 Sep 2009 15:00:07 EST news171120090 One single atom of a certain isotope of hafnium found on Earth would prove that a supernova once exploded near our solar system. The problem is how to find such an atom - among billions of others. Researchers at the University of Gothenburg, Sweden, have developed a laser technique that, in combination with standard techniques, may be able to do the job. http://www.physorg.com/news169209312.html Physics Tue, 11 Aug 2009 11:50:01 EST news169209312 (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 Scientists in the National Institute of Biomedical Imaging and Bioengineering (NIBIB) Laboratory of Bioengineering and Physical Science have developed a new technique that allows researchers to visualize fine details of cell structure three-dimensionally in thick sections, thus providing greater insight into how cells are organized and how they function. The work is described in a report published online this week in Nature Methods. http://www.physorg.com/news171195158.html Biology Thu, 03 Sep 2009 11:30:01 EST news171195158 Air Force Office of Scientific Research(AFOSR)-supported physicists at the University of Michigan are developing innovative components for quantum, or super-fast, computers that will improve security for data storage and transmission. http://www.physorg.com/news171731312.html Physics Wed, 09 Sep 2009 16:20:02 EST news171731312