http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. The main link on Africa's fastest railway opened Tuesday to thousands of commuters who shuttled at 160 kilometres (100 miles) per hour between Johannesburg and the South African capital Pretoria. http://phys.org/news231498989.html Technology Tue, 02 Aug 2011 10:50:06 EST news231498989 (AP) -- Pandora Media Inc. sold its initial public offering of stock at $16 per share late Tuesday, fetching twice as much as the popular but unprofitable Internet radio service expected less than two weeks ago. http://phys.org/news227330915.html Technology Wed, 15 Jun 2011 04:50:02 EST news227330915 The Flight Artists team from Wageningen University, the Netherlands, has been the first to make high-speed camera footage of parasitic wasps of about 1 mm wingspan. http://phys.org/news225541280.html Biology Wed, 25 May 2011 11:21:40 EST news225541280 (PhysOrg.com) -- By building a robotic ground-effect vehicle that flies inches above the ground, researchers from Japan may be offering a glimpse into the future of high-speed rail. The researchers, led by Yusuke Sugahara at Tohoku University, are currently testing the robotic prototype, which they have described earlier this week at the IEEE International Conference on Robotics and Automation (ICRA) in Shanghai. http://phys.org/news224431253.html Technology Thu, 12 May 2011 15:30:02 EST news224431253 For years, the relationship between Internet service provider and home user has been a simple, all-you-can-eat model: Pay a flat monthly fee and enjoy all the broadband you want, every byte of which streams at those fantastic speeds the ISPs advertise. Right?  http://phys.org/news224325132.html Technology Wed, 11 May 2011 09:32:44 EST news224325132 Just when you thought you were beginning to understand the twin paradox (maybe), scientists have found something new to ponder. In the original version of the famous thought experiment on time dilation, one twin stays on Earth while the other twin takes a rocket at nearly light speed into space, and returns to find that he is younger than his twin on Earth. But a new version of the story now shows that the twin who experiences an acceleration can be older than the twin who doesn’t accelerate, under slightly different conditions. http://phys.org/news163738003.html Physics Tue, 09 Jun 2009 04:04:48 EST news163738003 (PhysOrg.com) -- Picture this next time you're stuck in traffic: Thousands of wildebeests loping across the Serengeti Plain when suddenly a few spooked animals turn the orderly migration into a sea of locked horns, U-turns, head-on collisions and trampled calves. http://phys.org/news163417792.html Technology Fri, 05 Jun 2009 10:50:36 EST news163417792 New research shows some bees brace themselves against wind and turbulence by extending their sturdy hind legs while flying. But this approach comes at a steep cost, increasing aerodynamic drag and the power required for flight by roughly 30 percent, and cutting into the bees' flight performance. http://phys.org/news163161417.html Biology Tue, 02 Jun 2009 11:37:43 EST news163161417 NASA's Chandra X-ray Observatory has found a cosmic "ghost" lurking around a distant supermassive black hole. This is the first detection of such a high-energy apparition, and scientists think it is evidence of a huge eruption produced by the black hole. http://phys.org/news162744642.html Space & Earth Thu, 28 May 2009 15:52:17 EST news162744642 While today's law enforcement officers don't wear utility belts full of crimefighting gadgets like Batman, they do rely on a variety of state-of-the-art technologies to do their jobs efficiently and safely. Two of these devices—down-the-road (DTR) radar used in speed enforcement and the ballistic chronograph, which measures the speed of bullets -- soon should be more useful tools thanks to recent research conducted by the Office of Law Enforcement Standards (OLES) at the National Institute of Standards and Technology. http://phys.org/news162129877.html Physics Thu, 21 May 2009 13:05:28 EST news162129877 South Korea said Wednesday it will spend more than three billion dollars over the next five years to develop information technology as an "eco-friendly" growth engine. http://phys.org/news161413069.html Technology Wed, 13 May 2009 05:58:34 EST news161413069 An Intelligent Speed Adaption (ISA) system is being tested by the London for Transport (TfL). The eye-in-the-sky ISA system relies on a computer installed in the vehicle with pre-loaded speed limit road data that is monitored from a satellite. Initially, the test run will be limited to a cab, public buses and government cars overseen by the TfL. Testing will begin this Summer and run for six months. http://phys.org/news161264762.html Technology Mon, 11 May 2009 12:46:46 EST news161264762 (PhysOrg.com) -- When it comes to nonlocal correlations, some correlations are more nonlocal than others. As the subject of study for several decades, nonlocal correlations (for example, quantum entanglement) exist between two objects when they can somehow directly influence each other even when separated by a large distance. Because these correlations require “passion-at-a-distance” (a term coined by physicist Abner Shimony), they violate the principle of locality, which states that nothing can travel faster than the speed of light (even though quantum correlations cannot be used to communicate faster than the speed of light). Besides being a fascinating phenomenon, nonlocality can also lead to powerful techniques in computing, cryptography, and information processing. http://phys.org/news160911231.html Physics Thu, 07 May 2009 10:34:35 EST news160911231 (AP) -- Wi-Fi, WiMax, WirelessHD, WHDI and now ... WiGig? http://phys.org/news160847500.html Technology Wed, 06 May 2009 16:54:08 EST news160847500 Science and engineering are advancing rapidly in part due to ever more powerful computer simulations, yet the most advanced supercomputers require programming skills that all too few U.S. researchers possess. At the same time, affordable computers and committed national programs outside the U.S. are eroding American competitiveness in number of simulation-driven fields. http://phys.org/news160411089.html Technology Fri, 01 May 2009 15:38:32 EST news160411089 Ultrafast, light-sensitive video cameras are needed for observing high-speed events such as shockwaves, communication between living cells, neural activity, laser surgery and elements of blood analysis. To catch such elusive moments, a camera must be able to capture millions or billions of images continuously with a very high frame rate. Conventional cameras are simply not up to the task. http://phys.org/news160304445.html Technology Thu, 30 Apr 2009 10:01:47 EST news160304445 All-you-can-eat buffets lose a lot of their luster when you have to pay by the pound. Will the same hold true for broadband Internet access? http://phys.org/news160219396.html Technology Wed, 29 Apr 2009 10:24:02 EST news160219396 (AP) -- Cablevision Systems Corp. is set to unveil Tuesday the fastest Internet speeds available from any cable or phone company. http://phys.org/news160127021.html Technology Tue, 28 Apr 2009 08:44:30 EST news160127021 (PhysOrg.com) -- Özlem Durmaz Incel, researcher at the University of Twente, the Netherlands, has developed a spectacular new method that enables wireless sensor networks to function up to ten times more efficiently. Networks based on this revolutionary method can be used for an extremely wide range of applications. They can, for example, be used for the surveillance of bridges, ports and distribution centres. They can also greatly increase efficiency in transport and logistics, for example in large ports. http://phys.org/news160061305.html Technology Mon, 27 Apr 2009 14:29:10 EST news160061305 (PhysOrg.com) -- It is the most famous scientific equation in history, framed by Einstein more than a century ago. But what does e=mc² actually stand for? And how does it explain the relationship between energy, mass and the speed of light? http://phys.org/news159636867.html Other Sciences Wed, 22 Apr 2009 16:34:54 EST news159636867 A new, extremely energy-efficient processor chip that provides breakthrough speeds for a variety of computing tasks has been designed by a group at the University of California, Davis. The chip, dubbed AsAP, is ultra-small, fully reprogrammable and highly configurable, so it can be widely adapted to a number of applications. http://phys.org/news159623453.html Technology Wed, 22 Apr 2009 12:51:14 EST news159623453 (AP) -- AT&T Inc. is shutting down its CallVantage Internet-based phone service, according to letters received by subscribers this week. http://phys.org/news159622938.html Technology Wed, 22 Apr 2009 12:43:00 EST news159622938 Researchers at Carnegie Mellon University's School of Computer Science have developed a new method for systematically identifying bugs in aircraft collision avoidance systems, high-speed train controls and other complex, computer-controlled devices, collectively known as cyber-physical systems (CPS). http://phys.org/news159448202.html Technology Mon, 20 Apr 2009 12:10:30 EST news159448202 US President Barack Obama Thursday called for a US high speed rail service to rival the express trains of France, Japan, Spain and China, highlighting a 13 billion dollar government funding boost. http://phys.org/news159107236.html Technology Thu, 16 Apr 2009 13:27:50 EST news159107236 Mark Nicas has given some of his best years to spittle. He builds models - the mathematical kind - of how someone else's slobber ends up on you. The size of the particles, whether they come out in a dry cough or a wet sneeze, their evaporation rate, air speed - these are all complications, reasons why people like Nicas can spend careers piling up academic papers, all the while building up a healthy respect for pathogens. http://phys.org/news158950946.html Other Sciences Tue, 14 Apr 2009 18:02:54 EST news158950946 Kansas gravel roads have varying speed limits, but a study by Kansas State University researchers shows that instead of abiding by those limits, people are more likely to use their own judgment to gauge how fast they should drive on the roads. http://phys.org/news158582974.html Other Sciences Fri, 10 Apr 2009 11:50:14 EST news158582974 (AP) -- Ghost hackers infiltrating the computers of Tibetan exiles and the U.S. electric grid have pulled the curtain back on 21st-century espionage as nefarious as anything from the Cold War - and far more difficult to stop. http://phys.org/news158562451.html Technology Fri, 10 Apr 2009 06:08:16 EST news158562451 (AP) -- For millennia, people have watched the birds and bees and wondered: "How do they do that?" Thanks to high-speed film and some persistent scientists, at least one of the secrets of flight is now revealed. When birds, bats or bugs make a turn, all they have to do is start flapping their wings normally again and they straighten right out. http://phys.org/news158516858.html Biology Thu, 09 Apr 2009 17:28:16 EST news158516858 (AP) -- The Federal Communications Commission took the first step Wednesday in developing a comprehensive plan to give all Americans high-speed Internet access. http://phys.org/news158416397.html Technology Wed, 08 Apr 2009 13:33:59 EST news158416397 (PhysOrg.com) -- Integral has captured one of the brightest gamma-ray bursts ever seen. A meticulous analysis of the data has allowed astronomers to investigate the initial phases of this giant stellar explosion, which led to the ejection of matter at velocities close to the speed of light. In particular, the astronomers believe that the explosion lifted a piece of the central engine's magnetic field into space. http://phys.org/news157976603.html Space & Earth Fri, 03 Apr 2009 11:24:02 EST news157976603