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ObsessiveMathsFreak writes "Google has expanded its remit once again with the quiet launch of Google Dictionary. Google word search definitions now redirect to Google Dictionary instead of to Google's long term thesaurus goto site, Answers.com, which is expected to take a serious hit in traffic as a result. Dictionary pages are noticeably more plain and faster loading than their Answers.com equivalents, and unusually feature web citations for the definitions of each word. This means that, unlike most dictionaries, Google considers ginormous a word."

AMESN writes "Ways to bend light around objects and render them invisible are becoming a major field of scientific study and gaining ground. While no actual invisibility cloak exists yet, researchers are also theorizing on how to beat the perfect cloak."

An anonymous reader writes "Tehran's leadership faces its biggest crisis since it first came to power in 1979, as Iranians at home and abroad attack its legitimacy in the wake of June's allegedly rigged presidential vote. An opposition effort, the 'Green Movement,' is gaining a global following of regular Iranians who say they never previously considered themselves activists. The regime has been cracking down hard at home. And now, a Wall Street Journal investigation shows, it is extending that crackdown to Iranians abroad as well. Part of the effort involves tracking the Facebook, Twitter and YouTube activity of Iranians around the world, and identifying them at opposition protests abroad. People who criticize Iran's regime online or in public demonstrations are facing threats intended to silence them."

Lexta writes with an interesting tidbit from IEEE Spectrum: "'Karsten Nohl, chief research scientist with H4RDW4RE, a Sunnyvale, Calif.-based security research firm, is mounting what could be the most ambitious attempt yet to compromise the GSM phone system.' The intended approach is to create an open source project to spread the computation of a giant look-up table across more than 80 machines. Interestingly, they've openly stated that nVidia's CUDA technology will be used to execute parallel elements of the problem on GPUs as well."

gyrogeerloose writes "During its last mission, astronauts from the Space Shuttle Atlantis installed an Automatic Identification System antenna on the outside of the International Space Station that will allow astronauts aboard the ISS to monitor signals from the AIS transmitters mandated to be installed on most large ocean-going craft. Although these VHF signals can be monitored from the Earth's surface, their horizontal range is generally limited to about 75 km (46 mi), leaving large areas of the ocean unwatched. However, the signals easily reach the 400 km (250 mi) orbit of the ISS. The European Space Agency sees this experiment as a test platform for a future AIS-monitoring fleet of satellites that will eventually provide worldwide coverage of sea traffic."

Joe Quimby writes "Microsoft and Yahoo have finalized and executed their Web-search agreement after five months of deliberation, the companies announced Friday. Microsoft and Yahoo reached a revenue-sharing agreement in July to combine their search businesses. Under the 10-year agreement, Yahoo's Web search would be powered by Bing and Yahoo would retain most ad revenue from its site."

DesScorp writes "Aviation Week reports that the USAF has confirmed the existence of a new, formerly secret stealth aircraft, designated RQ-170 Sentinel, developed at Lockheed's legendary Skunk Works. Rumors of a secret new jet have been flying since 2007, with longtime aviation journalist Bill Sweetman dubbing the possible aircraft 'The Beast of Kandahar' because of the urban legend-like reports from Afghanistan. The aircraft is a UAV, a pilot-less drone that appears to have some kind of reconnaissance-only mission for the time being. It's a tailless flying wing that resembles a fighter-sized B-2 bomber."

An anonymous reader writes "Two years ago, Matthew White searched Limewire for porn. He was looking for 'College Girls Gone Wild,' but ended up downloading some images of child pornography. This was accidental, according to White, and he quickly deleted the images. A year later, the FBI showed up on his family's doorstep and asked to search the computer. After thorough sleuthing, the FBI found some images 'deep within the hard drive.' According to White, the investigators agreed that he himself could not have accessed the files anymore. Matthew now faces 20 years in jail for possession of child pornography. On advice from his lawyer, he intends to plead guilty so that he will 'hopefully' end up with 3.5 years in jail, 10 years probation and a registration as a sex offender. 'The FBI could not comment on this specific case, but said if child pornography is ever downloaded accidentally, the user needs to call authorities immediately. They may confiscate your computer, but it's better than the alternative.'"

An anonymous reader writes with this excerpt from TGDaily: "Researchers from Harvard and MIT have demonstrated a way to build better artificial visual systems with the help of low-cost, high-performance gaming hardware. [A video describing their research is available.] 'Reverse engineering a biological visual system — a system with hundreds of millions of processing units — and building an artificial system that works the same way is a daunting task,' says David Cox, Principal Investigator of the Visual Neuroscience Group at the Rowland Institute at Harvard. 'It is not enough to simply assemble together a huge amount of computing power. We have to figure out how to put all the parts together so that they can do what our brains can do.' The team drew inspiration from screening techniques in molecular biology, where a multitude of candidate organisms or compounds are screened in parallel to find those that have a particular property of interest. Rather than building a single model and seeing how well it could recognize visual objects, the team constructed thousands of candidate models, and screened for those that performed best on an object recognition task. The resulting models outperformed a crop of state-of-the-art computer vision systems across a range of test sets, more accurately identifying a range of objects on random natural backgrounds with variation in position, scale, and rotation. Using ordinary CPUs, the effort would have required either years or millions of dollars of computing hardware. Instead, by harnessing modern graphics hardware, the analysis was done in just one week, and at a small fraction of the cost."

eldavojohn writes with an update to the CRU email leak story we've been following for the past two weeks. The peer-reviewed scientific journal Nature has published an article saying the emails do not demonstrate any sort of "scientific conspiracy," and that the journal doesn't intend to investigate earlier papers from CRU researchers without "substantive reasons for concern." The article notes, "Whatever the e-mail authors may have said to one another in (supposed) privacy, however, what matters is how they acted. And the fact is that, in the end, neither they nor the IPCC suppressed anything: when the assessment report was published in 2007 it referenced and discussed both papers." Reader lacaprup points out related news that a global warming skeptic plans to sue NASA under the Freedom of Information Act for failing to deliver climate data and correspondence of their own, which he thinks will be "highly damaging." Meanwhile, a United Nations panel will be conducting its own investigation of the CRU emails.