An anonymous reader writes "In a foot-meet-bullet type move, NVidia is going to disable PhysX engine if you are using a display adapter other than one that came from their company. This despite the fact that you may have an NVidia card on your system specifically to do this type of processing. 'For a variety of reasons some development expense, some quality assurance and some business reasons Nvidia will not support GPU accelerated PhysX with Nvidia GPUs while GPU rendering is happening on non-Nvidia GPUs.' Time to say hello to Microsoft dx physics or Intel's Havok engine."

MBCook writes "Greg Parker has an excellent technical article on his blog about the changes to the dynamic linker (dyld) for Objective-C that Snow Leopard uses to cut launch time in half and cut about 1/2 MB of memory per application. 'In theory, a shared library could be different every time your program is run. In practice, you get the same version of the shared libraries almost every time you run, and so does every other process on the system. The system takes advantage of this by building the dyld shared cache. The shared cache contains a copy of many system libraries, with most of dyld's linking and loading work done in advance. Every process can then share that shared cache, saving memory and launch time.' He also has a post on the new thread-local garbage collection that Snow Leopard uses for Objective-C."

Hugh Pickens writes "New Scientist reports that, faced with global warming and potential oil shortages, the US Navy is experimenting with making jet fuel from seawater by processing seawater into unsaturated short-chain hydrocarbons that with further refining could be made into kerosene-based jet fuel. The process involves extracting carbon dioxide dissolved in the water and combining it with hydrogen — obtained by splitting water molecules using electricity — to make a hydrocarbon fuel, a variant of a chemical reaction called the Fischer-Tropsch process, which is used commercially to produce a gasoline-like hydrocarbon fuel from syngas, a mixture of carbon monoxide and hydrogen often derived from coal. The Navy team have been experimenting to find out how to steer the CO2-producing process away from producing unwanted methane by finding a different catalyst than the usual one based on cobalt. 'The idea of using CO2 as a carbon source is appealing,' says Philip Jessop, a chemist at Queen's University adding that to make a jet fuel that is properly 'green,' the energy-intensive electrolysis that produces the hydrogen will need to use a carbon-neutral energy source; and the complex multi-step process will always consume significantly more energy than the fuel it produces could yield. 'It's a lot more complicated than it at first looks.'"

Al writes "NASA recently finished testing a miniature nuclear reactor that would provide power for an astronaut base on the Moon or Mars. The reactor combines a small fission system with a Stirling engine to make a 'safe, reliable, and efficient' way to produce electricity. The system being tested at NASA's Glenn Research Center can produce 2.3 kilowatts and could be ready for launch by 2020, NASA officials say. The reactor ought to provide much more power than solar panels but could prove controversial with the public concerned about launching a nuclear power source and placing it on the Moon or another planet."

theodp writes "Embrace. Extend. Patent. On Tuesday, Microsoft was granted US Patent No. 7,571,169 for its 'invention' of the Word-processing document stored in a single XML file that may be manipulated by applications that understand XML. Presumably developers are protected by Microsoft's 'covenant not to sue,' so the biggest question raised by this patent is: How in the world was it granted in light of the 40-year history of document markup languages? Next thing you know, the USPTO will give Microsoft a patent for Providing Emergency Data in XML format. Oops, too late."

7-Vodka writes "Xcel Energy customers who have their own solar panels are worried about a new fee being proposed by the company. A monthly fee to pay for transmission and distribution of energy would be charged to customers who have solar panels, irrespective of their energy use for the month. An Xcel Energy spokesman said the fee is to ensure that regular customers don't subsidize the 'connectivity fees' for the solar panel customers who don't pay when they generate as much as they use. When pressed, the spokesman admitted that nobody actually pays a 'connectivity fee,' yet they wanted to prevent the mooching from occurring in the future (presumably when they hit everyone with such a fee). He also called the absence of a connectivity fee for solar customers a 'double subsidy' because many solar customers receive rebates to install the panels."

Oracle Goddess writes "Buying DRMed content, then having that content stop working later, is fair, writes Steven Metalitz, the lawyer who represents the MPAA, RIAA in a letter to the top legal advisor at the Copyright Office. 'We reject the view that copyright owners and their licensees are required to provide consumers with perpetual access to creative works.' In other words, if it stops working, too bad. Not surprisingly, Metalitz also strongly opposes any exemption that would allow users to legally strip DRM from content if a store goes dark and takes down its authentication servers."

BuzzSkyline writes "Traffic jams are minimized if a significant fraction of drivers break the rules by doing things like passing on the wrong side or changing lanes too close to an intersection. The insight comes from a cellular automata study published this month in the journal Physical Review E. In effect, people who disregard the rules help to break up the groups that form as rule-followers clump together. The risk of jamming is lower if all people obey the rules than if they all disobey them, according to the analysis, but jamming risk is lowest when about 40 percent of people drive like jerks."

Ubisoft recently revealed that their game sales have seen a 50% drop over the past quarter, blaming the overall market slowdown and piracy (particularly on the DS) for the low numbers. They also announced that four of their games, including Splinter Cell: Conviction and Red Steel 2, would be delayed until 2010. The company's CEO, Yves Guillemot, now says they are working on a new anti-piracy tool that should be ready by the end of 2009. He didn't offer any details about how it would be implemented.

angry tapir writes "Microsoft has made its second release under the General Public License in two days with software for Moodle, an 'open-source course management system that teachers use to create online learning Web sites for their classes[, which] has about 30 million users in 207 countries.' It comes on the heels of Redmond contributing drivers to the Linux community. No reports as yet on dropping temperatures in hell."

narramissic writes "Earlier this week, the Clear airport security screening service ceased operations, leaving many to wonder what would become of the personal information, including credit card numbers, fingerprints, and iris scans, of Clear's customers. And now we know. The information could be sold to the provider of a similar service. Until then, Clear has erased PC hard drives at its airport screening kiosks and is wiping employee computers, but the information is retained on its central databases (managed by Lockheed Martin). Clear customer David Maynor, who is CTO with Errata Security in Atlanta, wants Clear to delete his information but that isn't happening, the company said in a note posted to its Web site Thursday. 'They had your social security information, credit information, where you lived, employment history, fingerprint information,' said Maynor. 'They should be the only ones who have access to that information.'"

TheSync writes Eurekalert reports that researchers at the Montreal Neurological Institute and Hospital, McGill and UCLA have captured the first image of protein translation that underlies long-term memory formation. A fluorescent protein showed the increased local protein synthesis during memory formation, which requires cooperation between the pre and post-synaptic compartments of the two neurons that meet at the synapse."

duh P3rf3ss3r writes "National Geographic reports that a 6000-year-old tomb complex on 200 hectares (500 acres) has been discovered on the Salisbury Plain just 24 km (15 miles) from Stonehenge. The site has come as a surprise to the archaeologists who had thought that the area had been studied in such depth that few discoveries of such magnitude remained. The site, fully 1000 years older than Stonehenge, has been called 'Britain's oldest architecture.'"

The Narrative Fallacy writes "Every year pilots in the US report more than 5,000 bird strikes, which cause at least $400 million in damage to commercial and military aircraft. Now safety hearings are beginning on the crash of US Airways Flight 1549, where a flock of eight-pound geese apparently brought down a plane, plunging it and 155 people into the frigid waters of the Hudson River. Despite having experimented with everything from electromagnetics to ultrasonic devices to scarecrows, the Federal Aviation Administration (FAA) has yet to endorse a single solution that will keep birds out of the path of an oncoming aircraft." (More below.)

Michael_Curator writes "It's no secret that commercial airplanes are heavily computerized, but as the mystery of Air France Flight 447 unfolds, we need to come to grips with the fact that in many cases, airline pilots' hands are tied when it comes to responding effectively to an emergency situation. Boeing planes allow pilots to take over from computers during emergency situations, Airbus planes do not. It's not a design flaw — it's a philosophical divide. It's essentially a question of what do you trust most: a human being's ingenuity or a computer's infinitely faster access and reaction to information. It's not surprising that an American company errs on the side of individual freedom while a European company is more inclined to favor an approach that relies on systems. As passengers, we should have the right to ask whether we're putting our lives in the hands of a computer rather than the battle-tested pilot sitting up front, and we should have right to deplane if we don't like the answer."