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Domain: homelinux.org
Stories and comments across the archive that link to homelinux.org.
Stories · 7
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Rubik's Cube Algorithm Cut Again, Down to 23 Moves
Bryan writes "The number of moves necessary to solve an arbitrary Rubik's cube configuration has been cut down to 23 moves, according to an update on Tomas Rokicki's homepage (and here). As reported in March, Rokicki developed a very efficient strategy for studying cube solvability, which he used it to show that 25 moves are sufficient to solve any (solvable) Rubik's cube. Since then, he's upgraded from 8GB of memory and a Q6600 CPU, to the supercomputers at Sony Pictures Imageworks (his latest result was produced during idle-time between productions). Combined with some of Rokicki's earlier work, this new result implies that for any arbitrary cube configuration, a solution exists in either 21, 22, or 23 moves. This is in agreement with informal group-theoretic arguments (see Hofstadter 1996, ch. 14) suggesting that the necessary and sufficient number of moves should be in the low 20s. From the producers of Spiderman 3 and Surf's Up, we bring you: 2 steps closer to God's Algorithm!" -
Teenage Blogger Finds Gmail Hole
cpm80 wrote to mention the news that a 14 year old blogger has identified a security hole in the Gmail webmail service. From the Network World article: "He wrote that he was trying to e-mail JavaScript code from a Yahoo account to a G-mail account. The code will run in a preview pane, he wrote. But if the code is mailed from one Gmail account to another, it is filtered out, he said. Some visitors to the blog reported being able to replicate the findings, but others said later that they were not able to and that the supposed flaw had been fixed." -
Gentoo 2005.0 Released
mintshows writes "According to Gentoo Planet, the first gentoo release of the year, 2005.0, is out. You can download the 2005.0 ISOs from the torrents at http://torrents.gentoo.org/ . Of course, current Gentoo users can just emerge to the latest and greatest as always." -
Visiting the Big Bang
DarkKnightRadick writes "An article at the NYTimes.com (Free reg) is reporting that researchers in Long Island, NY are attempting to create the quark-gluon plasma that existed a trillionth of a second after the big bang, when the universe was just the size of a marble or grapefruit. "Sam Aronson was perched a few stories up on a metal catwalk, surrounded by tons of Russian steel and Japanese electronics, and enough wires to impress even Con Ed, when he paused to say what really interested him about the $600 million machine. Time, he said. More precisely, the beginning of time, just after the Big Bang, some 14 billion years ago."" -
LaGrande, TCPA, and Palladium
An anonymous reader writes "Intel's Paul Otellini gave a talk to developers where Intel's project called "LaGrande" was mentioned. This project is aimed to create a "safer computer environment", that would consist of an advanced TCPA implementation. Some of the features it has deal with physically "protected execution, protected memory, and protected storage". When talking on LaGrande, Otellini said "it's a core technology that things like the Microsoft Palladium initiative can take advantage of to build much more stable platforms."" -
TCPA and Palladium Technical Analysis
An anonymous reader writes "After some months reading TCPA specifications and Palladium information released by Microsoft, I've finished a technical article regarding the two; the scope is technically analyzing what we know on TCPA and Palladium so we can have an objective way to judge how could it really affect us if finally done. You can read it in English or Spanish." -
TCPA and Palladium Technical Analysis
An anonymous reader writes "After some months reading TCPA specifications and Palladium information released by Microsoft, I've finished a technical article regarding the two; the scope is technically analyzing what we know on TCPA and Palladium so we can have an objective way to judge how could it really affect us if finally done. You can read it in English or Spanish."