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Comment Re:Sheesh (Score 1) 223

The existence of things like a negative square root in an equation have predicted the existence of things like anti-particles, and those particles have been found experimentally.

That's only word playing.

There's no more 'existence' in a negative square root, than to a positive one. You have to define what 'existence' means, and only then we can decide if there's some relation between anti-particles and negative square roots.

It's a false dicothomy to talk about math and 'physics' as separate things.


Submission + - gcc basic math error, corrected. (nabble.com) 1

12357bd writes: Just some days ago there was a firehose entry about a serious math bug (wrong sign for some abs() expressions) on gcc for wersions 3.x to 4.1, but never reached the main /. page. Such an important information for developers should not pass without proper announcement.

The bug was detected Nov 17, and has been already fixed.


Submission + - gcc says -10==10 (lkml.org) 6

An anonymous reader writes: A bug in gcc causes it to think -10*abs(x) and 10*abs(x) have the same value. Just compile the following small program:

int main( void )
    int i=2;
    if( -10*abs (i-1) == 10*abs(i-1) )
        printf ("OMG,-10==10 in linux!\n");
        printf ("nothing special here\n") ;
    return 0 ;


Submission + - Bird's-Eye View May Include Magnetic Fields

BoredStiff writes: In a story heard on NPR and reported in ScienceDaily reports that a new study finds that migratory birds can "see" magnetic fields. The findings from a current study by a research group from Oldenburg, Germany strongly supports the hypothesis that migratory birds use their visual system to perceive the reference compass direction of the geomagnetic field and that migratory birds are thus likely to "see" the geomagnetic field.
Operating Systems

Submission + - Intel Chief Evangelist comments on Linux scheduler

ByeByeWintel writes: "James Reinders is Intel's Chief Evangelist for Intel's Software Development Products. In a recent interview on Devx.com he stated: "If I could get ONE wish fulfilled would be for OS scheduling to focus on processes, and not threads, for scheduling. And demand that processes manage their scheduling of threads. Why? Because an effective parallel program is going to assume, in general, that all threads are either running or stopped. It is messy to write a parallel program when the OS may be scheduling and unscheduling individual threads which are trying to cooperate. [...] There is a lot of opportunity for operating systems to offer these types of control in the "running of applications" interfaces. I'd like an OS to let me specify the 'world' my application runs in (which processors, how many, etc.) These interfaces are available in Windows at run time (the task manager will let you adjust where a running task can go). I'd like to have more global tools to specify and adjust policies (8-core machinerun "only Outlook" here, run applications on these 4 cores, OS only here, explorer here, etc.)""
Lord of the Rings

Submission + - Hobbits from Flores older than man (news.com.au)

microphobe writes: According to an article in the Australian today, New evidence has been brought forward supporting the theory of a "hobbit" like race of the human species that lived on the Indonesian island of Flores, in addition to this that they predate the common ancestor of Neanderthals and Man. http://www.theaustralian.news.com.au/story/0,25197,22455206-30417,00.html

Submission + - Intel open-source project to make Linux better.

techavenger writes: Intel Corporation yesterday announced the launch of an open source community project designed to meet the growing demands for increased energy efficiency across the computing spectrum spanning servers in data centers to personal mobile devices. Unveiled at the Intel Developer Forum by Renee James, corporate vice president and general manager of Intel's Software and Solutions Group, the LessWatts.org initiative brings together the community of Linux developers, OSVs and end users to facilitate technology development, deployment and tuning and sharing of information around Linux power management.

Submission + - Dynamic Resizing of Images Via Dynamic Paths

porkchop_d_clown writes: "Ariel Shamir and Shai Avidan presented a paper at the 2007 SIGGRAPH conference showning how to dynamically resize images by inserting or removing pixels along "low energy paths". While this sounds dry, in practice it means dynamically resizing images by altering the "boring" parts of the image while preserving the important features. You can see an impressive presentation of the technology here."

Submission + - Transactional Memory at Sun

12357bd writes: The register is reporting that : 'Hoping to improve the state of server software, Sun Microsystems has confirmed that it will include support for transactional memory with the first generation of its Rock processors due out in the second half of next year.'

Does it means Transactional Memory will become a major trend?. Details of sun implementation at sun research site..

Submission + - The power of LinuxMCE / Media & Entertainment (megavideo.com)

josecc writes: "LinuxMCE is a free, open source add-on to Kubuntu including a 10' UI, complete whole-house media solution with pvr + distributed media, and the most advanced smarthome solution available. It is stable, easy to use, and requires no knowledge of Linux and only basic computer skills. http://linuxmce.org/ | http://wiki.linuxmce.org/index.php/Mirrors"

Submission + - Google Earth for Star Gazing (bbc.co.uk)

Placid writes: "According to BBC News, a new add-on for Google Earth has been released, that allows users to view the constellations of Andromeda, Hydra and Vulpecula. From the article:
"Sky will allow astronomers a chance to glide through images of more than one million stars and 200 million galaxies. Optional layers allow users to explore images from the Hubble Space Telescope as well as animations of lunar cycles."
This latest add-on seems to be another product of the agreement made between NASA and Google in December 2006 that was designed to "put the most useful of NASA's information on the internet"; which ultimately created Google Moon and Google Mars."


Submission + - Quantum RAM (arxivblog.com)

KentuckyFC writes: If you want to build a quantum computer, you're going to need qauntum RAM. Now a group from MIT and elsehwere has designed just such a device, reports the arXivblog.com. "Quantum RAM like most quantum things is just like plain old vanilla RAM except all a-ghostly and a-spooky. Brrrrr."

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