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Math

Rubik's Cube Proof Cut To 25 Moves 386

Posted by samzenpus
from the too-much-time-on-your-hands dept.
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."
Role Playing (Games)

Blizzard Sues Creator of WoW Bot 701

Posted by Zonk
from the kind-of-defeating-the-point-of-an-mmo dept.
Ponca City, We Love You writes "Blizzard, the makers of World of Warcraft, are suing Michael Donnelly, the creator of the MMO Glider program, which performs key tasks in the game automatically. Blizzard says the software bot infringes the company's copyright and potentially damages the game. 'Blizzard's designs expectations are frustrated, and resources are allocated unevenly, when bots are introduced into the WoW universe, because bots spend far more time in-game than an ordinary player would and consume resources the entire time,' Blizzard wrote in its legal submission to the court. More than 100,000 copies of the tool have been sold while more than 10 million people around the world play Warcraft. Donnelly says his tool does not infringe Blizzard's copyright because no 'copy' of the Warcraft game client software is ever made. The two parties are now awaiting a summary judgment in the case."
Cellphones

Will Motorola Rise From the Ashes? 128

Posted by Zonk
from the comeback-kid dept.
An anonymous reader writes "According to ZDNET the once almighty Motorola is going to split into two companies, 'If the split goes through as planned, what will remain will be the "broadband and mobility solutions" business, which includes enterprise mobility, government and public safety, and Motorola's home and networks divisions.' Engadget claims to have an insider's email that details where it all went wrong, paying particular attention to mismanagement at the highest levels. What makes all of this even more of a shame though is that Motorola's latest product lineup seems to be receiving critical acclaim but with the company in so much termoil, will it ever rise out of the ashes?"
The Internet

Acid3 Race In Full Swing, Opera Overtakes Safari 261

Posted by Zonk
from the going-for-the-gold dept.
enemi writes "Just a few days after Safari released version 3.1, Opera employee David Storey writes on his blog that they've overtaken Apple's browser in the Acid3 test. In the race to be the first to reach the reference rendering, Opera's software leads now with 98%, closely following by Safari with 96% and Firefox 3 beta 4 with 71%. He also noted the implemented features will not make a public appearance in the following weeks, because they are getting close to releasing Opera 9.5. That version has been under public testing since September and the new CSS3 color modes and font rendering features might further delay this. They will probably show the score in a preview build soon and wait for a post 9.5 stable build to release the new features to the public." Update: 03/26 21:21 GMT by Z : Opera is now at 100%, apparently, with Safari close behind at 98%. Update: 03/27 by J : Public build r31356 of WebKit (Safari's rendering engine) is at 100%.
The Military

Nuclear Nose Cones Mistakenly Shipped to Taiwan 254

Posted by CmdrTaco
from the it's-ok-it's-only-our-military dept.
Reservoir Hill writes "The Pentagon announced that the United States had mistakenly shipped to Taiwan four electrical fuses designed for use on intercontinental ballistic missiles, but has since recovered them. The mistaken shipment to Taiwan did not include nuclear materials, although the fuses are linked to the triggering mechanism in the nose cone of a Minuteman nuclear missile. Taiwanese authorities notified U.S. officials of the mistake, but it was not clear when the notification was made. An examination of the site in Taiwan where the components had been stored after delivery indicated that they had not been tampered with. The fuses had been in four shipping containers sent in March 2005 from F.E. Warren Air Force Base, Wyo., to a Defense Logisitics Agency warehouse at Hill Air Force Base, Utah. It was then in the logistics agency's control and was shipped to Taiwan "on or around" August 2006, according to a memo from Defense Secretary Robert Gates ordering Navy Adm. Kirkland H. Donald to investigate the incident."
Social Networks

The Coming Digital Presidency 464

Posted by CmdrTaco
from the your-vote-counts-as-much-as-they-want-it-to dept.
Ranjit Mathoda writes "Marc Andreeson, the cofounder of Netscape, met Senator Barack Obama in early 2007. Mr. Andreeson recalls, "In particular, the Senator was personally interested in the rise of social networking, Facebook, Youtube, and user-generated content, and casually but persistently grilled us on what we thought the next generation of social media would be and how social networking might affect politics — with no staff present, no prepared materials, no notes. He already knew a fair amount about the topic but was very curious to actually learn more." As a social organizer and a lover of new technologies, Mr. Obama could be expected to make good use of such tools in getting elected, and he has done so. What may not be as obvious is that Mr. Obama appears to have a keen interest in using such technologies in the act of governing. And whether Mr. Obama becomes president, or Mrs. Clinton or Mr. McCain do, these new tools have the potential to transform how government operates."
Data Storage

Western Digital's "Green" Hard Drives 187

Posted by CmdrTaco
from the not-as-vain-as-driving-a-prius dept.
MojoKid writes "Eco-friendly or 'green' products are becoming much more fashionable these days, especially in things like high-end electronics, where the impact on the environment and the disposal of these products is being regulated now by such things as the RoHS compliance standard. In addition, power consumption is also being looked at more closely for all the obvious reasons. Hard Drive manufacturer Western Digital recently took the initiative by being the first drive manufacture to produce and market a lower power version of their Caviar line of hard drives. The numbers here show that a green hard drive will probably only save an average end user about 10 watts in total system power consumption. However, from a data center perspective, where demand for storage is growing by the petabyte at an alarming rate, 10 watts per drive can certainly add up quickly."
Medicine

Suspended Animation In Mice Without Freezing 147

Posted by kdawson
from the you-will-sleep-now-and-when-you-wake dept.
Predictions Market writes "Low doses of hydrogen sulfide, the toxic gas responsible for the unpleasant odor of rotten eggs, can safely and reversibly depress both metabolism and aspects of cardiovascular function in mice, producing a suspended-animation-like state that does not depend on a reduction in body temperature and include a substantial decrease in heart rate without a drop in blood pressure. The researchers measured factors such as heart rate, blood pressure, body temperature, respiration, and physical activity in normal mice exposed to low-dose (80 ppm) hydrogen sulfide for several hours. In all the mice, metabolic measurements such as consumption of oxygen and production of carbon dioxide dropped in as little as 10 minutes after they began inhaling hydrogen sulfide, remained low as long as the gas was administered, and returned to normal within 30 minutes of the resumption of a normal air supply. 'Producing a reversible hypometabolic state could allow organ function to be preserved when oxygen supply is limited, such as after a traumatic injury,' says the lead author of the study. 'We don't know yet if these results will be transferable to humans, so our next step will be to study the use of hydrogen sulfide in larger mammals.' The full report is available online."
Microsoft

ODF Editor Says ODF Loses If OOXML Does 268

Posted by kdawson
from the strange-bedfellow dept.
An anonymous reader writes "The editor of the Open Document Format standard has written a letter (PDF) that strongly supports recognizing Microsoft's OOXML file format as a standard, arguing that if it fails, ODF will suffer. 'As the editor of OpenDocument, I want to promote OpenDocument, extol its features, urge the widest use of it as possible, none of which is accomplished by the anti-OpenXML position in ISO,' Patrick Durusau wrote. 'The bottom line is that OpenDocument, among others, will lose if OpenXML loses... Passage of OpenXML in ISO is going to benefit OpenDocument as much as anyone else.'"

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