KentuckyFC writes "A scrambled Rubik's cube can be solved in just 25 moves, regardless of the starting configuration. Tomas Rokicki, a Stanford-trained mathematician, has proven the new limit (down from 26 which was proved last year) using a neat piece of computer science. Rather than study individual moves, he's used the symmetry of the cube to study its transformations in sets. This allows him to separate the 'cube space' into 2 billion sets each containing 20 billion elements. He then shows that a large number of these sets are essentially equivalent to other sets and so can be ignored. Even then, to crunch through the remaining sets, he needed a workstation with 8GB of memory and around 1500 hours of time on a Q6600 CPU running at 1.6GHz. Next up, 24 moves."

trogador writes "Researchers from Imperial College London are improving the Da Vinci surgical robot by installing an eye-tracker, which allows surgeons to control the robot's knife simply by looking at the patient's tissues on a screen. Tracking the eyes can generate a 3D map, which in turn can make moving organs — like a beating heart — appear to stand still for easier operation. Other features include 'see-through' tissues on the surgeon's screen (so tumors can be seen underneath tissues) and 'no-cut' zones, places where the robot won't allow the surgeon to cut by mistake. Says ICL Professor Guang Zhong Yang, 'We want to empower the robot and make it more autonomous.'"

AtomBOB suggests a Phoronix review comparing the performance of a Quadro graphics card on Windows Vista Ultimate, Solaris Express Developer, and Ubuntu Linux. The graphics card used was a NVIDIA Quadro FX 1700 mid-range workstation part. The cross-platform benchmark used was SPECViewPerf 9.0 from SPEC. Quoting Phoronix: "Using the Quadro FX1700 512MB and the latest display drivers, Windows Vista wasn't the decisive winner, but the loser... Ubuntu 8.04 Alpha 5 with the 169.12 driver had overall produced the fastest results within SPECViewPerf. In only three benchmarks had Solaris Express Developer 1/08 outpaced Ubuntu Linux, but with two of these tests the results were almost identical.""

Julie188 writes "A team of four Thai students beat out 10,000 competitors to win the $25,000 prize in the Microsoft 2007 Imagine Cup. Their project is text-to-speech software in which computers read aloud typed and handwritten commands. The software will allow people who can't read to interact with a PC. Imagine Cup judge Rand Morimoto has been blogging on the whole experience — from his video of the opening ceremonies to how contestants swilled free Cokes to keep themselves awake during the 24-hour, no-sleep phase of the competition."

SonicSpike writes " NASA has discovered a chunk missing from the underside of the space shuttle Endeavour. It was discovered after the shuttle docked with the ISS earlier today. Technicians theorize it may have been caused by ice ripping free of a fuel take during takeoff. From the article:'The gouge — about 3 inches square — was spotted in zoom-in photography taken by the space station crew shortly before Endeavour delivered teacher-astronaut Barbara Morgan and her six crewmates to the orbiting outpost ... On Sunday, the astronauts will inspect the area, using Endeavour's 100-foot robot arm and extension beam. Lasers on the end of the beam will gauge the exact size and depth of the gouge, Shannon said, and then engineering analyses will determine whether the damage is severe enough to warrant repairs. Radar images show a white spray or streak coming off Endeavour 58 seconds after liftoff. Engineers theorize that if the debris was ice, it pierced the tile and then broke up, scraping the area downwind. Pictures from Friday's photo inspection show downwind scrapes."

webdoodle writes "An astronomer at Columbia University thinks he has solved a 400-year-old mystery: the origin of strange optical flashes seen on the moon's surface. These spots, called 'Transient Lunar Phenomenon' (TLP) by the astronomy community, have confused moon-gazers since the time of ancient scientists. Arlin Crotts now thinks that TLPs are something called 'outgassing', a process where trapped gasses escape to the lunar atmosphere. 'To arrive at his theory, Crotts correlated TLPs with known gas outbursts from the lunar surface as seen by several spacecraft, particularly NASA's Apollo 15 mission in 1971 and the robotic Lunar Prospector in 1998. What he discovered was a remarkable similarity in the pattern of outgassing event locations recorded by spacecraft across the face of the moon and reported TLP sites.'"

eldavojohn writes "Microsoft is applying for OSI certification for its Shared Source Initiative. The move is described in a blog post by an MS OSS lab worker: 'Today, we reached another milestone with the decision to submit our open licenses to the OSI approval process, which, if the licenses are approved, should give the community additional confidence that the code we're sharing is truly Open Source. I believe that the same voices that have been calling for Microsoft products to better interoperate with open source products would voice their approval should the Open Source Initiative itself open up to more of the IT industry.' According to PC World, reaction from the community has been mostly positive."

FreetoCopy writes "Teenagers downloading music may not be the worst copyright offenders. See this item (available for download in PDF file with free registration) about the growing problem of copyfraud — in which publishers, archives, and distributors make false claims of copyright to shut down free expression. From the paper: 'Copyfraud is everywhere. False copyright notices appear on modern reprints of Shakespeare's plays, Beethoven's piano scores, greeting card versions of Monet's Water Lilies, and even the US Constitution. Archives claim blanket copyright in everything in their collections. Vendors of microfilmed versions of historical newspapers assert copyright ownership. These false copyright claims, which are often accompanied by threatened litigation for reproducing a work without the owner's permission, result in users seeking licenses and paying fees to reproduce works that are free for everyone to use...'"

coondoggie sends us a NetworkWorld story on the prospects for Apple gaining market share in the corporation. A number of factors are helping to catch the eye of those responsible for upgrading desktops and servers, the article claims: "Apple's shift to the Intel architecture; the inclusion of infrastructure and interoperability hooks, such as directory services, in the Mac OS X Server; dual-boot capabilities; clustering and storage technology; third-party virtualization software; and comparison shopping, which is being fostered by migration costs and hardware overhauls associated with Microsoft's Vista." On this last point, one network admin is quoted: "The changes in Vista are significant enough that we think we can absorb the change going to Macs just as easily as going to Vista."

Simon P. Chappell writes "Is there anyone left in our industry that hasn't heard of Ajax, the ultimate client-side technology for web developers? Like many, I've read several books on it and now I'm even brushing up on JavaScript so that I can try it out. There is, however, an aspect of Ajax that often seems to get lost in the rush to play with the new browser tricks; Ajax enhanced web applications still need to work closely with server-side components. To even up the balance of books that concentrate on the browser end of Ajax, Apress brings us Practical Ajax Projects with Java Technology by Frank W. Zammetti.

Tom's Hardware has a nice overview about some of the latest ways to secure your data looking specifically at open source solutions that wont lock down your credit card. Since many people presented performance issues for why they don't implement encryption there was also special attention given to how well your system will perform after implementation of encryption. From the article: "At least where LUKS is concerned, performance is hardly an issue - one must expect to pay some penalty for additional encryption facilities that handle unencrypted data transparently. All of these solutions are simple to set up and use on a daily basis, but LUKS is portable across Windows and Linux platforms."

An anonymous reader writes Business Week Online examines the business practices of spammers and pop-up advertisers, using much-maligned Direct Revenue as an example case. The article discusses the history of the company, their rocky road through good and bad times, and what they're willing to to get your eyes on their ads." From the article: "Among Direct Revenue's alumni, pride over technical cunning mingles with regret for exasperating so many computer users. After waffling on the issue during a long interview, one former Dark Arts wizard sighs and sums up his version of the company credo with an elegiac observation by abolitionist Frederick Douglass: 'Find out just what any people will quietly submit to and you have found out the exact measure of injustice and wrong which will be imposed upon them.'"