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) -- The European Space Agency has today released spectacular new observations from the Herschel Space Observatory, including the UK-led SPIRE instrument. Spectrometers on board all three Hershel instruments have been used to analyse the light from objects inside our galaxy and from other galaxies, producing some of the best measurements yet of atoms and molecules involved in the birth and death of stars. http://www.physorg.com/news178551842.html Space & Earth Fri, 27 Nov 2009 13:45:21 EST news178551842 (PhysOrg.com) -- NASA's Fermi Gamma-ray Space Telescope has made the first unambiguous detection of high-energy gamma-rays from an enigmatic binary system known as Cygnus X-3. The system pairs a hot, massive star with a compact object -- either a neutron star or a black hole -- that blasts twin radio-emitting jets of matter into space at more than half the speed of light. http://www.physorg.com/news178547547.html Space & Earth Fri, 27 Nov 2009 12:34:14 EST news178547547 (PhysOrg.com) -- Researchers at Washington University in St. Louis have developed a polymer-coated gold nanocage that not only opens in response to light to release a small amount of a drug payload, but then closes when the light is turned off, leaving this nanodevice ready to deliver another dose of drug on command. Releasing carefully titrated amounts of a drug only near the tissue that is the drug's intended target, this delivery system has the potential to maximize a drug's beneficial effects while minimizing its side effects. http://www.physorg.com/news177875527.html Nanotechnology Thu, 19 Nov 2009 18:40:01 EST news177875527 (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) -- Scientists and curiosity seekers who want to know what a partially or completely cloaked object would look like in real life can now get their wish -- virtually. A team of researchers at the Karlsruhe Institute of Technology in Germany has created a new visualization tool that can render a room containing such an object, showing the visual effects of such a cloaking mechanism and its imperfections. http://www.physorg.com/news177268469.html Physics Fri, 13 Nov 2009 15:00:19 EST news177268469 Berkeley Lab researchers have engineered a new class of bowtie-shaped devices that capture, filter and steer light at the nanoscale. These "nano-colorsorter" devices act as antennae to focus and sort light in tiny spaces, a useful technique for harvesting broadband light for color-sensitive filters and detectors. http://www.physorg.com/news177251056.html Nanotechnology Thu, 12 Nov 2009 12:25:15 EST news177251056 Astronomers, conducting the broadest survey to date of galaxies from about 800 million years after the Big Bang, have found 22 early galaxies and confirmed the age of one by its characteristic hydrogen signature at 787 million years post Big Bang. The finding is the first age-confirmation of a so-called dropout galaxy at that distant time and pinpoints when an era called the reionization epoch likely began. The research will be published in a December issue of the Astrophysical Journal. http://www.physorg.com/news176737523.html Space & Earth Fri, 06 Nov 2009 13:46:08 EST news176737523 Whiter paper and better color reproduction are examples of important competitive advantages on an international market. But how white is a paper? And why do vacation photos turn out so dark if you don't buy expensive photo paper? Per Edström at Mid Sweden University has attracted international attention for his research, which has resulted in a new generation of computational tools for simulation of light in paper and print. http://www.physorg.com/news175425486.html Technology Thu, 22 Oct 2009 11:00:02 EST news175425486 (PhysOrg.com) -- A small molecule designed to detect cyanide in water samples works quickly, is easy to use, and glows under ultraviolet or "black" light. Although the fluorescent molecule is not yet ready for market, its Indiana University Bloomington creators report in the Journal of the American Chemical Society that the tool is already able to sense cyanide below the toxicity threshold established by the World Health Organization. http://www.physorg.com/news175359189.html Chemistry Wed, 21 Oct 2009 15:54:34 EST news175359189 (PhysOrg.com) -- Two physicists in China have used metamaterials to create the first artificial electromagnetic black hole. The scientists, Qiang Cheng and Tie Jun Cui from the Southeast University in Nanjing, China created the tiny black hole in their laboratory, in an experiment that aimed to simulate a black hole. http://www.physorg.com/news174893601.html Physics Fri, 16 Oct 2009 09:40:01 EST news174893601 (PhysOrg.com) -- For the first time, physicists have demonstrated the quantum entanglement of three light beams, all of different wavelengths. Entanglement of two light beams of different wavelengths has already been demonstrated, but the researchers explain that going beyond two beams is important since three beams can serve as connections at the nodes of a quantum network. http://www.physorg.com/news174133022.html Physics Wed, 07 Oct 2009 11:17:35 EST news174133022 (PhysOrg.com) -- Researchers from Boston University School of Medicine (BUSM) have concluded that the 940nm wavelength laser is superior for treating facial spider veins (telangiectasias) as compared to the 532nm wavelength laser. The findings, which appear in the recent issue of Lasers in Surgery and Medicine, are the first time these lasers were tested against each other for superiority. http://www.physorg.com/news174050078.html Medicine & Health Tue, 06 Oct 2009 12:30:01 EST news174050078 (PhysOrg.com) -- Herschel has delivered spectacular vistas of cold gas clouds lying near the plane of the Milky Way, revealing intense, unexpected activity. The dark, cool region is dotted with stellar factories, like pearls on a cosmic string. http://www.physorg.com/news173696614.html Space & Earth Fri, 02 Oct 2009 10:40:01 EST news173696614 (PhysOrg.com) -- Tomorrow's lasers may come with a bit of bling, thanks to a new technology that uses man-made diamonds to enhance the power and capabilities of lasers. Researchers in Australia have now demonstrated the first laser built with diamonds that has comparable efficiency to lasers built with other materials. http://www.physorg.com/news172497349.html Physics Fri, 18 Sep 2009 12:56:20 EST news172497349 (PhysOrg.com) -- Sharp Corporation has announced the development of a new 500 mW semiconductor laser for triple- and quadruple- layer Blu-ray discs. http://www.physorg.com/news172481493.html Technology Fri, 18 Sep 2009 10:10:01 EST news172481493 Ninjas knew how to be stealthy: Be dark. Emit very little light. Move in the shadows between bright places. http://www.physorg.com/news172342922.html Space & Earth Wed, 16 Sep 2009 18:40:13 EST news172342922 A team of international scientists led by Mirjam Langhans, from the German Aerospace Center (DLR), will present first results of a global analysis of spatial patterns, occurrence and origin of river channels on Titan at the European Planetary Science Congress in Potsdam, Germany, on Wednesday 16 September. http://www.physorg.com/news172306246.html Space & Earth Wed, 16 Sep 2009 11:50:08 EST news172306246 A dark red area discovered on dwarf planet Haumea appears to be richer in minerals and organic compounds than the surrounding icy surface. The discovery will be presented at the European Planetary Science Congress in Potsdam by Dr Pedro Lacerda on Wednesday 16 September. http://www.physorg.com/news172316850.html Space & Earth Wed, 16 Sep 2009 11:40:10 EST news172316850 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) -- Our understanding of star formation leans heavily on observations of stars like the sun, namely, those that are modest in mass and that are born and evolve at a relatively leisurely pace. http://www.physorg.com/news172237617.html Space & Earth Tue, 15 Sep 2009 12:50:14 EST news172237617 On September 6, 2009, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra satellite captured this simulated natural color image of the Station fire, burning in the San Gabriel Mountains north of Los Angeles. http://www.physorg.com/news171739064.html Space & Earth Wed, 09 Sep 2009 18:30:03 EST news171739064 (PhysOrg.com) -- Manipulating tiny objects like single cells or nanosized beads often requires relatively large, unwieldy equipment, but now a system that uses sound as a tiny tweezers can be small enough to place on a chip, according to Penn State engineers. http://www.physorg.com/news170686724.html Nanotechnology Fri, 28 Aug 2009 13:59:38 EST news170686724 One of the biggest challenges in scientists' quest to develop new and better treatments for cancer is gaining a better understanding of how and why cancer spreads. Recent breakthroughs have uncovered how different cellular proteins are turned 'on' or 'off' at the molecular level, but much remains to be understood about how protein signaling influences cell behavior. http://www.physorg.com/news169906799.html Chemistry Wed, 19 Aug 2009 13:20:31 EST news169906799 (PhysOrg.com) -- Researchers are adapting the same methods used in fusion-energy research to create extremely thin plasma beams for a new class of "nanolithography" required to make future computer chips. http://www.physorg.com/news169825442.html Nanotechnology Tue, 18 Aug 2009 14:44:45 EST news169825442 (PhysOrg.com) -- The expanding spot discovered on Venus last month may not have garnered as much attention as the meteor impact with Jupiter, but its cause is certainly more puzzling. http://www.physorg.com/news168610535.html Space & Earth Tue, 04 Aug 2009 13:16:10 EST news168610535 (PhysOrg.com) -- A well-established physical law describes the transfer of heat between two objects, but some physicists have long predicted that the law should break down when the objects are very close together. Scientists had never been able to confirm, or measure, this breakdown in practice. For the first time, however, MIT researchers have achieved this feat, and determined that the heat transfer can be 1,000 times greater than the law predicts. http://www.physorg.com/news168101848.html Physics Wed, 29 Jul 2009 15:58:36 EST news168101848 (PhysOrg.com) -- We could soon see the potential of laser technology expand dramatically. http://www.physorg.com/news168012151.html Physics Tue, 28 Jul 2009 15:03:21 EST news168012151 The eyes of nocturnal bats possess two spectral cone photoreceptor types for daylight and colour vision. Reporting in the open-access, peer-reviewed journal PLoS ONE, scientists at the Max Planck Institute for Brain Research in Frankfurt and the University of Oldenburg have detected cones and their visual pigments in two flower-visiting species of bat. http://www.physorg.com/news167978678.html Biology Tue, 28 Jul 2009 05:45:21 EST news167978678 Nanoparticles are being developed to perform a wide range of medical uses - imaging tumors, carrying drugs, delivering pulses of heat. Rather than settling for just one of these, researchers at the University of Washington have combined two nanoparticles in one tiny package. http://www.physorg.com/news167933174.html Nanotechnology Mon, 27 Jul 2009 17:17:04 EST news167933174 (PhysOrg.com) -- The ubiquitous barcodes found on product packaging provide information to the scanner at the checkout counter, but that's about all they do. Now, researchers at the Media Lab have come up with a new kind of very tiny barcode that could provide a variety of useful information to shoppers as they scan the shelves -- and could even lead to new devices for classroom presentations, business meetings, videogames or motion-capture systems. http://www.physorg.com/news167924987.html Technology Mon, 27 Jul 2009 15:00:02 EST news167924987