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User: physburn

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Comments · 520

  1. Re:More Cores, More Power on 4 Cores? 6 Cores? Do You Care? · · Score: 1
    Very much depends on the application that's running, most modern code is still not written to use multiple CPUs. In order to use the power of all the core, you need to have the task to be done, seperated into batches that are queued ready to be processed by which ever of the cores is available at any one time. But some tasks just don't parallelise in that way. When it comes to gaming however 3d rendering and collision detection are the main bottlenecks, and these are both highly paralleliseable is if extra cores don't speed it up, its because the programmers haven't caught up with the chip yet.

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    CPUs Feed @ Feed Distiller

  2. People always think they can do better don't they on Matt Smith Leaving Doctor Who Already? · · Score: 1
    In Acting role for an Iconic Hero, which will likely run continuously for years, but he thinks (vainly) that hollywood is crying out for actor, Leaving early would wreck his career not advance it.

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    Cult TV Feed @ Feed Distiller

  3. I don't think I want them winning hearts or minds on DARPA Issues Call For Computer Science Devotees · · Score: 4, Funny

    Job Spec: As part of this great, well paid opportunity, You will be developing our SkyNet and Colossus robot based anti personnel devices.

  4. Re:Effect Games on JavaScript/HTML 5 Gaming? · · Score: 2, Informative

    None of there games are HTML5, says so in the comments.

  5. Games on JavaScript/HTML 5 Gaming? · · Score: 1
    Nicely rendered, main ship (was it blender), but well the hell is the fire button, (z who uses z). C64 level games on 2010 computer, except the C64 could scroll smoothly, so could a spectrum, why does a browser have a problem, netscape 3 had layers and a timer event didn't it. Bring back Java applets for this sort of stuff. Oh, and have those enemy waves move a bit. Defender was so much better. Remind me, what was the amiga Defender clone, with the giant skull, now that was a game.

    LD HL,16384 LD C,192 LAB0: LD B,32 SUB A,A LAB1: RR (HL) INC HL DJNZ LAB1 DEC C JR NZ,LAB0

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    HTML5 Games Feed Just added at Feed Distiller

  6. Found this story in May and blogged about it, on Data Centers Prepare for a Renewable Future · · Score: 1

    blog, HP had published an academic paper about combining a data-center and farm, using biomass for local farms to power the servers in your server farm. Note however that transmission line and contenting to a the grid, don't cost very much in terms of efficiency (1 per cent, probably), or electricity price rate (is biomass cheaper than wind or sun, right now? varies with the weather doesn't it).

  7. Re:And then the crackdown on jaywalkers on NY Governor Wants To Expand DNA Database · · Score: 1
    Or taking DNA, for parking violation. Is there anyone whose never run a foul of some minor law? Only saints are unafraid.

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    Law and Order Feed @ Feed Distiller

  8. Re:Sand to Power on Europe To Import Sahara Solar Power Within 5 Years · · Score: 1
    Concentrator Mirrors still need scratch proof glass, and cleaning, from the sand.

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    Solar Power Feed @ Feed Distiller

  9. Sand to Power on Europe To Import Sahara Solar Power Within 5 Years · · Score: 1
    I like it, Sand => Silicon => Solar Cells, So seems fair to put solar cells, in a hot sandy place.

    Except of course, the cells will get covered and scratched by the sand storms.

    They'll have to pay people to keep the cells clean uncovered and well polished.

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    Solar Power Feed @ Feed Distiller

  10. Re:Power from Zinc/Copper?? on Potato-Powered Batteries Debut · · Score: 1
    Zinc is the more electropositive element, so the potato acid, will bind to the zinc, forming a salt. The copper would remain unaffected. But yes, the zinc would have to be replaced. Most of the energy in the battery would have come from the process of smelting zinc ore.

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    Batteries Feeds @ Feed Distiller

  11. Re:This will be interesting.... on Stem Cell Tourist Dies From Treatment In Thailand · · Score: 1

    FDA rules are pretty strong, but it would be very easy to sell snake oil cures otherwise.

  12. I shall change my name by deed poll to on Falsehoods Programmers Believe About Names · · Score: 1

    Mr quote semicolon drop table

  13. Occam on Parallel Programming For the Arduino · · Score: 1

    I remember Occam I learned it back in 1993, it was designed to power specialized multi-CPU machines, transputers, microprocessor with dedicated high speed serial connects to there peer microprocessors. The company that made the transputer INMOS went burst, and disappeared into Olivetti and the transputer was never seen again. I'm surprised that Occam is still going after all this time. It wasn't a bad language and had parallelism as a very low level, which would make it useful for graphics programming or matrix maths, where you could split a for loop over multiple processors, were the answers where independent of result for other indexes.

  14. Re:Quantum on Inertial Mass Separate From Gravitational Mass? · · Score: 1
    The situation described by the paper, don't allow changing of the inertial mass, only a measurement of it, separate to the gravitational mass, so you won't be able to use it to create such perpetual motion machines. Further any difference in inertial mass and gravitational mass, will only appear in measurement of averages of observables of the particles. A semi-classical measurement of how the centre of mass of the particle, will still obey newtons rules, thus CoM will move with a common mass for inertial and gravitational movements, however other measurement like how the uncertainty in the position of particle changes, will allow a measurement of some combination of the too different masses.

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    Quantum Mechanics Feed @ Feed Distiller

  15. Re:The main issue on Getting Paid Fairly When Job Responsibilities Spiral? · · Score: 1
    Personally with work, I find its the would be having to work extra hours, unpaid overtime that would get me down. Our questioner has had to switch into a more technical role, which he's assumes should be better paid. That's moving up in the CV would, which would be a plus to me, now if he has to work longer hours, because of his extra responsibility that would suck. Its likely to take years for his extra responsibility to turn into extra pay, but at least it is moving upwards.

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    Job Hunting Feed @ Feed Distiller

  16. Re:I'm not qualified to read this article. on Why Some Supermassive Black Holes Have Big Jets · · Score: 2, Informative

    You never see the singularity supposed at the middle of a black hole. A black hole, is normally defined by its event horizon a spherical (spheroidal for a spinning) hole, region light can't escape from. A black hole can have spin and charge, because these are both universally conversed quantities.

  17. Re:Looking great on Trailer For Blender Open Movie Sintel Ready · · Score: 2, Interesting
    If there charging for the movie, I think they should donate to the software developers, for writing the software to make it possible. On thing about open software is that it can't pay for marketing so the rule, free for those you know, very expensive to everyone else applies.

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    3D Graphics Feed @ Feed Distiller

  18. At last the secret fluid from reanimator on Chemical Cocktail Can Keep a Heart Viable 10 Days, Outside the Body · · Score: 2, Insightful
  19. Re:collapse at any minute? on Record-Breaking Galaxy Cluster Found · · Score: 1
    We can't observe outside of light cone of course, but we can assume that matter obeys physically law, continuing in at the same speed unless something else makes it stop. Cosmology takes as a assumption that the universe is smooth and obeys the same laws of physics over its history. Given that, we can predict that the matter outside are light core, (further away than we can see), is still expanding, and nothing has happened to chance this, because nothing has happened nearby to change the local expansion.

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    Big Bang Feed @ Feed Distiller

  20. Re:collapse at any minute? on Record-Breaking Galaxy Cluster Found · · Score: 1
    We measure the expansion of the universe, by the red shift of the late from galaxies. If we look at nearby galaxies (but outside our supercluster), we find there are still moving away, so the universe is still expanding. If fact the results of detailed measurements of galaxies red shifts and distances, show that the in fact the universe if not only still expanding, but that the expansion is speeding up despite the attraction of gravity. Sciencist have had to investigate the mysterious substance called dark energy, which is causing this acceleration of the expansion of the universe.

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    Big Bang Feed @ Feed Distiller

  21. Device driver on Consumer Webcams With High-Quality Sensors? · · Score: 1

    Watch the device driver support, I port a cheap Net cam, only to find it didn't support Linux or XP 64 which are all I use. The cam was useless to me.

  22. Re:bucng of layers on Open Source Guacamole Puts VNC On the Web · · Score: 4, Informative

    Yes please, lets turn all the screen output to XML, before turning it back to screen output, because XML, is so cool. That would be so much faster than streaming X11 (not).

  23. Interviews on The Laidoff Ninja · · Score: 1, Insightful
    What about Interviews, being a geek, I give terrible interview. I also seem to sit with bored interviewers, and try and catch there interest something that oft seem impossible.

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    Job Hunting Feed @ Feed Distiller

  24. Re:Non-Intrusive agents? on OpenDLP Aims To Stem Data Loss · · Score: 2, Funny
    Extremely, an whole organism has spywear put thoughtout its IT infrastructure, reporting to one central server that could be compromised to do, lord knows what harm.

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    Computer Security Feed @ Feed Distiller

  25. Amazing how few programmers use real maths. on What Every Programmer Should Know About Floating-Point Arithmetic · · Score: 1
    I bet many of you have never done any real floating point work. I cut my teeth learning how floating point was implemented from the ZX spectrum ROM disassembly, used so many numerical recipies code for my Physics PhD, entered the world of programming for a living, and sadly never had touch maths commercially again. Most computer job I see advertised, seem to think that A-level maths is as hard as it gets. Enough moaning.

    As a programmer, the one most important thing you need to know about floating point is never test for equality (even with zero), almost define how near the answer need be, and test against that. double a,b; double epsilon = 1.0d-10;

    if (a==b){ // Bad practice

    if ( abs(a-b) .lt. epsilon){ // Better practice

    --- Mathematical Programming Feed @ Feed Distiller