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The Internet

Looking Inside the Second Life Data Centers 103

Posted by CmdrTaco from the lookit-all-them-wires-in-there dept.
An anonymous reader writes "InformationWeek looks inside the data centers that power the game Second Life. Tidbits from the article: The software architecture is an extension of the virtual world metaphor of Second Life. At any time, it's possible to walk into one of Second Life's two data centers, pat one of the rack-mounted servers, and say that particular server is running virtual New York, or San Francisco, or ancient Rome, and imagine itty-bitty people and buildings inside the 1U rack-mounted servers. Linden Lab, which develops and maintains Second Life, runs 2,000 Intel- and AMD-based servers in two co-location facilities in San Francisco and Dallas. And, contrary to widespread belief among Second Life users, Linden Lab has not decided whether to open-source the Second Life server software."
Power

Using Gym Rats' Body Power to Generate Electricity 338

Posted by CowboyNeal from the other-biodiesel-generators dept.
Carl Bialik from WSJ writes "A Hong Kong health club is hoping that a car battery, some StairMasters and dozens of gym rats can help ease the world's energy problems. It is just one of a wave of projects that are trying to tap the power of the human body, the Wall Street Journal reports. The article explains the impetus behind the project: 'The human power project at California Fitness was set in motion by Doug Woodring, a 41-year-old extreme-sports fanatic and renewable-energy entrepreneur, who pitched the experiment to the gym's management last May. "I've trained my whole life, and many megawatts have been wasted," says Mr. Woodring, who has worked out at the Hong Kong gym for years. "I wanted to do something with all that sweat."'"

Introduction to Linden Scripting Language 139

Posted by CmdrTaco from the fad-or-fantastic dept.
prostoalex writes "Dr. Dobb's Journal runs a lengthy introduction to Linden Scripting Language, the language behind avatars and their interaction in Second Life: "LSL is a scripting language that runs server-side, on a piece of software called the simulator. The simulator does just what it's name implies — it simulates the virtual world of Second Life. Each simulator runs everything for 16 acres of virtual land — buildings, physics, and of course, scripts. While you manipulate the script text in a form that is somewhat easy to read, the actual code that runs on the simulator is compiled. A compiler is a piece of software that takes the text version of the script and converts it into something that can actually run. In the case of LSL, the compiler exists within the Second Life viewer itself. In the future, it is likely that the compiler will move from the viewer into the Second Life simulators, but where the code is compiled isn't very important. What matters is that the text is converted into a form that can run on the simulators.""
Editorial

Greatest Task of Web 2.x: Meta-Validation 161

Posted by kdawson from the vetting-the-metadata dept.
CexpTretical writes "This Technology Review article about Web 2.x problems fails to mention the 800 pound gorilla in the room when it comes to fulfilling the dreams of the Semantic Web — i.e., assumptions about the validity of metadata or tagging schemes. We can add all of the metadata and/or tags we want to web resources but that does not mean that the 'data about the data' honestly or accurately describe the resource or are 'about the data' at all. This is why Google does not place much importance on the metadata already contained in HTML document headers for search ranking, because it cannot be trusted. And to validate it would require more effort than to search and index that data from scratch. Ensuring or verifying the validity of metadata would be a task equal to that of initially creating it, but would have to be repeated on an ongoing basis. Hence all of the talk about 'trusted networks,' which then require trusting the gatekeepers of those networks. Talk about 'semantics.'" Slashdot's moderation and meta-moderation offer one example of getting useful metadata in a non-trusted environment.

Singing Dolphins Do Batman 168

Posted by ScuttleMonkey from the bam-pow-whack dept.
The results of two scientific studies have shown that dolphins are capable of recognizing rhythms and pitch and are able to reproduce them. In order to best demonstrate this ability the scientists chose the epic, Batman theme song and were able to teach a shortened version to the dolphins who reproduced it in response to certain stimuli.

Comment Re:Several Possibilities (Score 1) 1127

by Teddyman (#10857545) Attached to: Valve Takes the Offensive on Warez Users?
"Let's let people mod our game. And what the hell, we'll buy the leading map editor for our format and give it out for free." iD didn't do that.
Call me when Valve releases their games on Linux and MacOS, releases the complete engine source for their older games under GPL and supports an open-source, cross-platform map editor. Until then I'll think id (I think they haven't used the capital D since Commander Keen days) is still ahead on the giving-stuff-out-for-free front.

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